DE2341060A1 - Injection mouldings with improved surface characteristics - by inserting a laminated foil into the mould prior to moulding - Google Patents
Injection mouldings with improved surface characteristics - by inserting a laminated foil into the mould prior to mouldingInfo
- Publication number
- DE2341060A1 DE2341060A1 DE19732341060 DE2341060A DE2341060A1 DE 2341060 A1 DE2341060 A1 DE 2341060A1 DE 19732341060 DE19732341060 DE 19732341060 DE 2341060 A DE2341060 A DE 2341060A DE 2341060 A1 DE2341060 A1 DE 2341060A1
- Authority
- DE
- Germany
- Prior art keywords
- layer
- film
- thermoplastic material
- mold
- tool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001746 injection moulding Methods 0.000 title claims description 6
- 239000011888 foil Substances 0.000 title abstract description 6
- 238000000465 moulding Methods 0.000 title abstract 2
- 239000012815 thermoplastic material Substances 0.000 claims description 10
- 239000004604 Blowing Agent Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229920001169 thermoplastic Polymers 0.000 abstract description 11
- 239000004416 thermosoftening plastic Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- 238000004026 adhesive bonding Methods 0.000 abstract 1
- 239000004088 foaming agent Substances 0.000 abstract 1
- 238000010422 painting Methods 0.000 abstract 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 14
- -1 acrylic ester Chemical class 0.000 description 7
- 239000002318 adhesion promoter Substances 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- 239000002131 composite material Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- 239000004156 Azodicarbonamide Substances 0.000 description 4
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- 239000005977 Ethylene Substances 0.000 description 4
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 4
- 235000019399 azodicarbonamide Nutrition 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 3
- 239000005062 Polybutadiene Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 229920000578 graft copolymer Polymers 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920002857 polybutadiene Polymers 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 description 2
- 229920001038 ethylene copolymer Polymers 0.000 description 2
- 239000004413 injection moulding compound Substances 0.000 description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 1
- 229920000147 Styrene maleic anhydride Polymers 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/14—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
- B29C44/16—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining shaped by the expansion of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
- B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
- B29C45/14811—Multilayered articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C3/00—Processes, not specifically provided for elsewhere, for producing ornamental structures
- B44C3/04—Modelling plastic materials, e.g. clay
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C3/00—Processes, not specifically provided for elsewhere, for producing ornamental structures
- B44C3/04—Modelling plastic materials, e.g. clay
- B44C3/044—Chemical modelling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C3/00—Processes, not specifically provided for elsewhere, for producing ornamental structures
- B44C3/04—Modelling plastic materials, e.g. clay
- B44C3/046—Modelling plastic materials, e.g. clay using a modelling surface, e.g. plate
- B44C3/048—Modelling plastic materials, e.g. clay using a modelling surface, e.g. plate applying an additional decorative element, e.g. picture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
- B29C2045/14286—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure means for heating the insert
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Unser Zeichen: O.Z. 30 056 Wr/L 6700 Ludwigshafen, 13.8.1973Our reference: O.Z. 30 056 Wr / L 6700 Ludwigshafen, August 13, 1973
Spritzgießverfahren zur Herstellung von Normteilen mit veredelter OberflächeInjection molding process for the production of standard parts with refined surface
Zusatz zu Patent . (Patentanmeldung P 22 52 042.9)Addendum to patent. (Patent application P 22 52 042.9)
Die Erfindung betrifft eine weitere Ausgestaltung des Verfahrens zur Herstellung von Formteilen mit veredelter Oberfläche, wobei eine erwärmte,ebene Folie aus thermoplastischem Kunststoff zwischen zwei, einen Hohlraum begrenzende Werkzeughälften gebracht und entsprechend der Werkzeugkontur durch Einspritzen eines treibmittelhaltigen, expandierbaren thermoplastischen Kunststoffs in das nicht gasdicht schließende Werkzeug verformt wird, gemäß Patent (PatentanmeldungThe invention relates to a further embodiment of the method for producing molded parts with a refined surface, a heated, flat film made of thermoplastic material between two tool halves delimiting a cavity brought and according to the tool contour by injecting a blowing agent-containing, expandable thermoplastic Plastic is deformed in the tool, which does not close gas-tight, according to patent (patent application
P 22 52 042.9).P 22 52 042.9).
Es ist bekannt, spritzgegossenen Formteilen aus thermoplastischen Kunststoffen dadurch ein dekoratives Aussehen zu verleihen, daß sie ganz oder teilweise mit bedruckten oder unbedruckten Folien überzogen werden. Die Folien werden dabei in das Spritzgußwerkzeug eingelegt und mit der Kunststoffmasse hinterspritzt, so daß sie an ihren Oberflächen aufschmelzen und sich mit der heißen Kunststoffmasse verbinden. Wesentliche Voraussetzung ist es, zwischen dem spritzgegossenen Kunststoff und der Folie eine gute Verbindung zu erhalten. Daher können im allgemeinen nach diesem Verfahren nur chemisch ausreichend ähnliche Polymere fest miteinander verbunden werden. In vielen Fällen ist jedoch eine besondere Behandlung zwingend erforderlich. So ist es beispielsweise aus der deutschen'Offenlegungsschrift 2 100 374 bekannt, die aus vakuumverformbarem Material bestehende Folie auf der der Formhöhlung gegenüberliegenden Oberfläche mit einem Klebstoffüberzug zu versehen. Der OberzugIt is known to give injection-molded molded parts made of thermoplastics a decorative appearance, that they are completely or partially covered with printed or unprinted films. The foils are then inserted into the Injection molding tool inserted and back-injected with the plastic compound so that they melt on their surfaces and connect with the hot plastic mass. An essential requirement is between the injection molded plastic and the foil to get a good connection. Therefore, in general, this method can only be chemically sufficient similar polymers are firmly bonded together. In many cases, however, special treatment is imperative. So it is, for example, from the German Disclosure 2 100 374 known, the film consisting of vacuum-deformable material on the opposite of the mold cavity To provide the surface with an adhesive coating. The upper pull
144/73 -2-144/73 -2-
509809/0515509809/0515
2 3 A 1 O 62 3 A 1 O 6
- 2 - O.Z. 30 O56 - 2 - OZ 30 O56
kann durch Sprühen, Walzenbeachiehtung oder Streichen aufgetragen werden.can be applied by spraying, brushing or brushing will.
Diese Arbeitsweise befriedigt jedoch nicht in jeder Hinsicht, sei es, daß ein gleichmäßiges Aufbringen des Klebstoffes auf die Folie sehr aufwendig und die Folie anschließend schlecht zu handhaben ist, oder sei es, daß eine zufriedenstellende Verbindung mit der Spritzgußmasse infolge der vorangegangenen Vakuumverformung der Folie nur schwer erzielt werden kann.However, this procedure is not satisfactory in every respect, be it that a uniform application of the adhesive the film is very expensive and the film is then difficult to handle, or be it that a satisfactory one Connection with the injection molding compound can only be achieved with difficulty as a result of the previous vacuum deformation of the film.
Es wurde nun unter Umgehung vorstehend genannter Nachteile ein Verfahren der eingangs bezeichneten Art zur Herstellung von Formteilen mit veredelter Oberfläche gefunden, das erfindungsgemäß dadurch gekennzeichnet ist, daß als Folie eine Mehrschichtfolie verwendet wird, bei der die der Angußseite des Werkzeuges zugekehrte Schicht aus einem thermoplastischen Kunststoff besteht, welcher mit dem eingespritzten treibmittelhaltigen thermoplastischen Kunststoff verträglich ist.A method of the type described at the outset for producing Found molded parts with a refined surface, which is characterized according to the invention in that the film is a multilayer film is used, in which the sprue side of the tool facing layer made of a thermoplastic material exists, which is compatible with the injected blowing agent-containing thermoplastic material.
Durch diese Maßnahme ist es möglich, schichtförmige Verbundsysteme mit für jede Verwendung erforderliche spezielle Eigenschaften, wie Glanz, Farbe, Oberflächenstrukturierung, sowie mit verbesserten mechanischen thermischen und chemischen Eigenschaften herzustellen. Diese betreffen insbesondere die Kratzfestigkeit, Zähigkeit, Korrosionsbeständigkeit und Löslichkeit.This measure makes it possible to create layered composite systems with special properties required for each use, such as gloss, color, surface structure, as well as with improved mechanical, thermal and chemical properties. These concern in particular the scratch resistance, Toughness, corrosion resistance and solubility.
Unter Mehrschichtfoilen im Sinne der Erfindung werden mehrere, vornehmlich zwei miteinander verbundene ebene, flächenförmige Gebilde aus thermoplastischen Kunststoffen verstanden.Multi-layer foils within the meaning of the invention are several, primarily understood as two interconnected flat, sheet-like structures made of thermoplastic plastics.
Die der Angußseite des Werkzeuges zugekehrte Schicht ist ein thermoplastischer Kunststoff, welcher mit einem eingespritzten treibmittelhaltigen thermoplastischen Kunststoff verträglich ist. Er wirkt also als Haftvermittler zwischen diesem Kunststoff und dem thermoplastischen Kunststoff der anderen Schicht. Beispiele für solche Haftvermittler sind Blockcopolymerisate aus Butadien und Styrol. Sie sind in den DT-OS 1 569 423, 1 595 092 und 2 236 903 beschrieben. Andere Haftvermittler sind Copolymerisate aus Styrol und Maleinsäureanhydrid nachThe layer facing the sprue side of the tool is a thermoplastic material which is compatible with an injected thermoplastic material containing blowing agent. It thus acts as an adhesion promoter between this plastic and the thermoplastic plastic of the other layer. Examples of such adhesion promoters are block copolymers of butadiene and styrene. They are described in DT-OS 1 569 423, 1 595 092 and 2 236 903. Other adhesion promoters are copolymers of styrene and maleic anhydride
509809/0515 "3"509809/0515 " 3 "
- 3 - O.Z. 30 056- 3 - O.Z. 30 056
den DT-OS 2 04-1 373 und 2 119 934. Geeignet sind auch thermoplastische Polyurethane und Pfropfpolymerisate von Vinylmonomeren auf solche Polyurethane nach der DT-OS 2 237 956 sowie Mischungen aus einem thermoplastischen Polymeren, das HHg- oder NH-Gruppen aufweist und einem Copolymerisat aus einem Olefin oder Styrol und einem carboxylgruppenhaltigen Honomeren nach der DT-OS 2 245 957. Schließlich können auch Copolymerisate aus Äthylen und Vinylacetat verwendet werden. Für die Erzielung einer hohen Verbundfeetigkeit von Polyolefinen mit Polyamiden bzw. Polyestern sind carboxylgruppenhaltige ternäre und quarternäre Äthylencopolymerisate geeignet, die aus 60 bis 90 Gewichtsteilen Äthylen, 0,5 bis 20 Gewichtsteilen einer äthylenisch ungesättigten Carbonsäure, 0,5 bis 20 Gewichtsteilen eines Esters einer äthylenisch ungesättigten Carbonsäure und 0,3 bis 5 Gewichtsteilen Isobutylen - wobei die Summe der Gewichtsteile jeweils 100 betragen soll - in polymer gebundener Form aufgebaut sind. Die Herstellung solcher Copolymerisate ist in der britischen Patentschrift 1 240, 508 beschrieben, ihre Verwendung zur Herstellung von Verbundfolien ist beispielsweise aus den deutschen Offenlegungsschriften 1 669 685 und 1 949 742 bekannt.DT-OS 2 04-1 373 and 2 119 934. Thermoplastic ones are also suitable Polyurethanes and graft polymers of vinyl monomers on such polyurethanes according to DT-OS 2 237 956 and Mixtures of a thermoplastic polymer, the HHg or Has NH groups and a copolymer of an olefin or styrene and a carboxyl group-containing monomer DT-OS 2 245 957. Finally, copolymers of ethylene and vinyl acetate can also be used. For the achievement a high bond strength between polyolefins and polyamides and polyesters are ternary and quaternary containing carboxyl groups Ethylene copolymers suitable from 60 to 90 parts by weight of ethylene, 0.5 to 20 parts by weight of an ethylenic unsaturated carboxylic acid, 0.5 to 20 parts by weight of an ester of an ethylenically unsaturated carboxylic acid and 0.3 to 5 parts by weight Isobutylene - the sum of the parts by weight should be 100 - built up in polymer-bound form are. The preparation of such copolymers is described in British Patent 1,240,508 and their use For example, German Offenlegungsschriften 1,669,685 and 1,949,742 provide information on the production of composite films known.
Die Dicke der Mehrschichtfolien kann je nach Verwendungszweck und Ausbildung der Werkzeuge zwischen etwa 0,05 und etwa 2 mm, vorzugsweise zwischen 0,2 und 0,8 mm, liegen.The thickness of the multilayer films can be between about 0.05 and about 2 mm, depending on the intended use and the design of the tools. preferably between 0.2 and 0.8 mm.
Die Mehrschichtfolie wird vor dem Einbringen in das Werkzeug mittels einer üblichen Heizeinrichtung, beispielsweise eines Infrarotstrahlers, auf eine solche Temperatur gebracht, daß beim Einspritzen der thermoplastischen Kunststoffschmelze an der Haftfläche eine Temperatur auftritt, die so hoch ist, daß sie zum Tiefziehen (Warmformen) der Folie ausreicht. Diese Temperatur ist gleichzeitig die zum Erreichen einer guten Haftung zwischen Folie und Spritzgußteil notwendige Mindesttemperatur. The multilayer film is placed in the tool before it is introduced by means of a conventional heating device, for example an infrared heater, brought to such a temperature that When the thermoplastic plastic melt is injected, a temperature occurs on the adhesive surface which is so high that it is sufficient for deep-drawing (thermoforming) the film. This temperature is also the temperature required to achieve good adhesion Minimum temperature required between the film and the injection-molded part.
In besonderen Fällen, z.B. wenn die Verarbeitungstemperaturen des Haftvermittlers höher sind als die Temperatur der treib- mittelhaltigen Schmelze, ist es zweckmäßig, von einer Drei-In special cases, e.g. if the processing temperatures of the adhesion promoter are higher than the temperature of the one containing the blowing agent Melt, it is appropriate to use a three-
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-4--4-
-· 4 '- O0Z. 30- · 4 '- O 0 line 30
schichtfolie auszugehen. Diese besteht aus der Außenschicht A, der hochschmelzenden Haftvermittlerschicht B und einer Schicht C aus einem niedriger schmelzenden thermoplastischen Kunststoff, der sowohl zur Schicht B als auch zum treibmittelhaltigen Kunststoff eine Haftung aufweisen muß. Solche Systeme sind ebenfalls in den genannten Druckschriften beschrieben.layer film to go out. This consists of the outer layer A, the high-melting adhesion promoter layer B and a layer C made of a lower-melting thermoplastic material, which must have adhesion both to layer B and to the plastic containing propellant. Such systems are also described in the cited publications.
Es wurde eine Zweischichtfolie durch Koextrusion unter Verwendung einer Zweischicht-Kombinationsdüse bei 2400C hergestellt.There was a two-layer film by co-extrusion using a two-layer combining nozzle at 240 0 C.
Die Zweischichtfolie war 0,2 mm dick und bestand aus der 0,1 mm dicken Schicht A, einem ABS-Polymerisat (einem Pfropfpolymerisat von 80 Teilen Styrol/Acrylnitril im Verhältnis 70 : 30 auf 20 Teile Polybutadien) und weiterhin der Schicht B, einer 0,1 mm dicken Schicht eines thermoplastischen Haftvermittlers (einer Mischung aus etwa je 1/3 eines Styrol-Maleinsäureanhydrid-Copolymerisats - 10 56 Maleinsäureanhydrid), außerdem von PoIymethylmethacrylat und einem Acrylester (einem Pfropfcopolymerisat von 40 Teilen eines Gemisches von Styrol und Acrylnitril im Verhältnis 70 : 30 auf 60 Teile eines teilweise vernetzten Acrylsäurebuty!esters).The two-layer film was 0.2 mm thick and consisted of the 0.1 mm thick layer A, an ABS polymer (a graft polymer of 80 parts of styrene / acrylonitrile in a ratio of 70:30 to 20 parts of polybutadiene) and further the layer B, one 0.1 mm thick layer of a thermoplastic adhesion promoter (a mixture of about 1/3 each of a styrene-maleic anhydride copolymer - 10 56 maleic anhydride), also of polymethyl methacrylate and an acrylic ester (a graft copolymer of 40 parts of a mixture of styrene and acrylonitrile in a ratio of 70:30 to 60 parts of a partially crosslinked acrylic acid butyester).
Die Zweischichtfolie wurde in einem Spannrahmen mittels Infrarotstrahlung auf eine Temperatur von 1400C erwärmt und zwischen die Trennhälften eines geöffneten Spritzgußwerkzeuges gebracht.The two-layer sheet was heated in a tenter frame by means of infrared radiation to a temperature of 140 0 C and brought an opened injection mold between the separating halves.
Die Werkzeugtemperatur betrug 500C. Nach dem Schließen des Werkzeuges wurde durch die Angußöffnung, unter einem Druck von 250 kp/cm , geschmolzenes Polystyrol (Polybutadiengehalt 6 $>) mit 0,5 i» Azodicarbonamid In die Werkzeughöhlung eingespritzt.The mold temperature was 50 0 C. After closing of the tool has been through the gate, under a pressure of 250 kgf / cm, molten polystyrene (polybutadiene $ 6>) i »azodicarbonamide injected with 0.5 In the mold cavity.
Die Temperatur der Spritzmasse betrug 25O0C.The temperature of the injection mass was 25O 0 C.
Durch die treibmittelhaltige Kunststoffschmelze wurde die Folie entsprechend der Werkzeugkontur verformt.The plastic melt containing blowing agent made the film deformed according to the tool contour.
Nach einer Abkühlzeit von etwa 4 Minuten wurde das erstarrte Formteil (Schrankteil mit den Abmessungen 400 χ 600 χ 12 mm) aus dem Werkzeug entnommen.After a cooling time of about 4 minutes, the solidified molded part (cabinet part with the dimensions 400 χ 600 χ 12 mm) taken from the tool.
509809/0515 -5-509809/0515 -5-
OFHGlNAL INSPECTEDOFHGlNAL INSPECTED
_ R ' π 7. ^n η_ R 'π 7. ^ n η
"·· J ·" KJ . U · ^iW VJ"·· J ·" KJ . U ^ iW VJ
Die Zweischichtfolie war mit dem Polystyrolschaum fest verbunden. The two-layer film was firmly connected to the polystyrene foam.
Eine durch !Coextrusion hergestellte Zweischichtfolie der Gesamtstärke 0,4 mm, bestehend aus einer 300 /um dicken Schicht schlagzähen Polystyrols mit 8 $6 Polybutadien und einer 100/um dicken Schicht eines als Haftvermittler dienenden Vier-Block-Copolymerisates aus Styrol und Butadien (40 # Styrol) wurde nach Beispiel 1 auf 1100C erwärmt und zwischen die Trehnhälften eines geöffneten Spritzgußwerkzeuges gebracht.A two-layer film produced by coextrusion with a total thickness of 0.4 mm, consisting of a 300 μm thick layer of impact-resistant polystyrene with 8 $ 6 polybutadiene and a 100 μm thick layer of a four-block copolymer of styrene and butadiene (40 # styrene) was heated to 110 0 C according to example 1 and brought an opened injection mold between the Trehnhälften.
Die Werkzeugtemperatur betrug 400C. Nach dem Schließen des Werkzeuges wurde durch die Angußöffnung unter einem Druck von 250 kp/cm2 geschmolzenes Polyäthylen der Dichte 0,918 bei Zimmertemperatur mit 0,5 $> Azodicarbonamid in die Werkzeugöffnung gebracht.The mold temperature was 40 0 C. After closing of the tool has been through the gate under a pressure of 250 kp / cm 2, molten polyethylene density 0.918 placed at room temperature with 0.5 $> azodicarbonamide in the tool opening.
Die Temperatur der Spritzmasse betrug 2200C.The temperature of the injection molding compound was 220 ° C.
Das Schrankteil nach Beispiel 1 war ein fester Verbund aus der vorgegebenen Zweischichtfolie und dem geschäumten Polyäthylen.The cabinet part according to Example 1 was a solid composite of the given two-layer film and the foamed polyethylene.
Im Blasverfahren wurde durch !Coextrusion eine Zweischichtfolie hergestellt. Die Gesamtdicke dieser Zweischichtfolie war 0,3 mm; sie bestand aus der 0,2 mm dicken Schicht A, aus einem 6-Polyamid eines mittleren Molekulargewichtes von 25 000 bis 30 000 und aus der 0,1 mm dicken Schicht B, aus einem Äthylencopolymerisat, das 90,4 Gewichtsteile Äthylen, 4,0 Gewichtsteile Acrylsäure, 4,1 Gewichtsteile tert.-Butylacrylat sowie 1,5 Gewichtsteile Isobutylen einpolymerisiert enthielt und einen Schmelzindex MFI (19O°C/2,16 kp) von 6,3 g/10 min sowie eine Dichte von 0,930 g/cm' aufwies.In the blow molding process, a two-layer film was produced by coextrusion manufactured. The total thickness of this two-layer film was 0.3 mm; it consisted of the 0.2 mm thick layer A, made of a 6-polyamide an average molecular weight of 25,000 to 30,000 and from the 0.1 mm thick layer B, made of an ethylene copolymer, 90.4 parts by weight of ethylene, 4.0 parts by weight of acrylic acid, 4.1 parts by weight of tert-butyl acrylate and 1.5 parts by weight Containing isobutylene polymerized and a melt index MFI (19O ° C / 2.16 kp) of 6.3 g / 10 min and a Density of 0.930 g / cm '.
Mittels Infrarotstrahlung wurde diese Zweischichtfolie in einem Spannrahmen während 35 Sekunden auf 1900C erwärmt und zwischen die Trennhälften eines geöffneten Spritzgußwerkzeuges gebracht (Werkzeugtemperatur 400C).Means of infrared radiation, this two-layer sheet was heated in a tenter frame for 35 seconds, 190 0 C and placed between the separating halves of an open injection molding tool (mold temperature 40 0 C).
-6-509809/0515 -6- 509809/0515
o.a. 30 05^341060o.a. 30 05 ^ 341060
Nach dem Schließen des Werkzeuges wurde durch die Angußöffnung ein mit 0,5 ^ Azodicarbonamid und mit 0,5 $> Zinkoxid versetztes Polyäthylen (Dichte 0,918 g/cm5, Schmelzindex MFI (190°C/ 2,16 kp) von 1,8 g/10 min unter einem Druck von 230 kp/cm und einer Massetemperatur von 22O0C in das Werkzeug gespritzt.After closing of the tool has been through the gate a ^ with 0.5 azodicarbonamide and 0.5 $> zinc oxide offset polyethylene (density 0.918 g / cm 5, melt index MFI (190 ° C / 2.16 kp) of 1.8 g / 10 min injected under a pressure of 230 kp / cm and a melt temperature of 22O 0 C in the tool.
Die treibmittelhaltige Polyäthylenmasse verformte die Zweischichtfolie entsprechend den Werkzeugkonturen.The polyethylene compound containing blowing agent deformed the two-layer film according to the tool contours.
Nach dreiminütiger Kühlzeit wurde die Form geöffnet und aus dem Werkzeug das erstarrte Formteil (Rückenlehne eines Stuhles mit den Maßen 400 χ 250 χ 30 mm) entnommen. Alle drei Schichten waren fest miteinander verbunden.After a cooling time of three minutes, the mold was opened and the solidified molded part (backrest of a chair with the dimensions 400 250 χ 30 mm). All three layers were firmly connected to one another.
In einer Plattenpresse wurde eine Zweischichtfolie hergestellt, indem die Schicht A, bestehend aus einer 0,2 mm dicken Folie aus Polybutylenterephthalat (hergestellt aus äquimolaren Mengen 1,4-Butandiol und Dimethylterephthalt, mittleres Molekulargewicht etwa 20 000) mit der Schicht B, bestehend aus einer 0,15 mm dicken Folie aus 86,3 Gewichtsteilen Äthylen, 4,8 Gewichtsteilen Acrylsäure, 8,2 Gewichtsteilen des tert.-Butylesters der Acrylsäure und 0,7 Gewichtsteilen Isobutylen der Dichte 0,928 g/cm5 und einem Schmelzindex MFI (190°C/2,16 kp) von 8,2 g/10 min, bei 2250C während 6 Minuten unter einem Druck von 0,2 kp/cm zu einem 0,3 mm dicken Verbund verpreßt wurde.A two-layer film was produced in a platen press by combining layer A, consisting of a 0.2 mm thick film of polybutylene terephthalate (made from equimolar amounts of 1,4-butanediol and dimethyl terephthalate, average molecular weight about 20,000) with layer B, consisting of a 0.15 mm thick film made of 86.3 parts by weight of ethylene, 4.8 parts by weight of acrylic acid, 8.2 parts by weight of the tert-butyl ester of acrylic acid and 0.7 parts by weight of isobutylene with a density of 0.928 g / cm 5 and a melt index MFI (190 ° C / 2.16 kp) of 8.2 g / 10 min, was pressed at 225 0 C for 6 minutes under a pressure of 0.2 kgf / cm at a 0.3 mm thick composite.
Entsprechend Beispiel 3 wurde die Zweischichtfolie während 50 Sekunden auf 2100C erwärmt und die heiße Folie zwischen die Trennhälften des Spritzgußwerkzeuges (Temperatur 450C) gebracht .According to Example 3, the two-layer film for 50 seconds were heated to 210 0 C and brought the hot film between the separating halves of the injection molding tool (temperature 45 0 C).
Nach dem Schließen des Werkzeuges wurde durch die Angußöffnung ein Polyäthylen (Dichte 0,960 g/cm5, Schmelzindex MFI (1900C/ 2,16 kp) von 5,2 g/10 min^ , das mit 0,8 $> Azodicarbonamid vermischt war, unter einem Druck von 190 kp/cm und einer Massetemperatur von 2300C in das Werkzeug gespritzt.After closing of the tool has been through the gate, a polyethylene (density 0.960 g / cm 5, melt index MFI (190 0 C / 2.16 kp) of 5.2 g / 10 min ^, which is mixed with 0.8 $> Azodicarbonamide was injected under a pressure of 190 kp / cm and a melt temperature of 230 0 C in the tool.
Nach 4 Minuten Kühlzeit wurde der dreischichtige, fest haftende Verbund dem Werkzeug entnommen. After a cooling time of 4 minutes, the three-layer, firmly adhering composite was removed from the tool.
509809/0515 "7"509809/0515 " 7 "
Claims (1)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2252042A DE2252042A1 (en) | 1972-10-24 | 1972-10-24 | INJECTION MOLDING PROCESS FOR THE MANUFACTURE OF FIRNTEUKEB NUT COVERED SURFACE |
| DE19732341060 DE2341060A1 (en) | 1972-10-24 | 1973-08-14 | Injection mouldings with improved surface characteristics - by inserting a laminated foil into the mould prior to moulding |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2252042A DE2252042A1 (en) | 1972-10-24 | 1972-10-24 | INJECTION MOLDING PROCESS FOR THE MANUFACTURE OF FIRNTEUKEB NUT COVERED SURFACE |
| DE19732341060 DE2341060A1 (en) | 1972-10-24 | 1973-08-14 | Injection mouldings with improved surface characteristics - by inserting a laminated foil into the mould prior to moulding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2341060A1 true DE2341060A1 (en) | 1975-02-27 |
Family
ID=32657466
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2252042A Pending DE2252042A1 (en) | 1972-10-24 | 1972-10-24 | INJECTION MOLDING PROCESS FOR THE MANUFACTURE OF FIRNTEUKEB NUT COVERED SURFACE |
| DE19732341060 Pending DE2341060A1 (en) | 1972-10-24 | 1973-08-14 | Injection mouldings with improved surface characteristics - by inserting a laminated foil into the mould prior to moulding |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2252042A Pending DE2252042A1 (en) | 1972-10-24 | 1972-10-24 | INJECTION MOLDING PROCESS FOR THE MANUFACTURE OF FIRNTEUKEB NUT COVERED SURFACE |
Country Status (1)
| Country | Link |
|---|---|
| DE (2) | DE2252042A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0177829A3 (en) * | 1984-09-26 | 1987-05-06 | Dai Nippon Insatsu Kabushiki Kaisha | Base film for three-dimensional conformability |
| AU581251B2 (en) * | 1984-02-08 | 1989-02-16 | Dai Nippon Insatsu Kabushiki Kaisha | Base film for three-dimensional conformability |
| WO1996003267A1 (en) * | 1994-07-21 | 1996-02-08 | Decoma International Inc. | Method and apparatus for manufacturing an injection-molded article with outer film secured thereto |
| DE19641134A1 (en) * | 1996-10-05 | 1998-04-16 | Happich Gmbh Gebr | Interior part |
| DE10059471A1 (en) * | 1999-12-01 | 2001-07-05 | Faurecia Sieges Automobile | Method for producing a seat or comparable cushion for a motor vehicle |
| EP1320457B1 (en) * | 2000-09-29 | 2016-04-20 | Trexel, Inc. | Method for forming in-mold decorated article |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2918308A1 (en) * | 2007-07-05 | 2009-01-09 | Cera | Trim part e.g. door trim, forming method for automobile, involves introducing thermoplastic material into mold, and stripping part obtained from mold, where material permits thermoforming of covering sheet |
-
1972
- 1972-10-24 DE DE2252042A patent/DE2252042A1/en active Pending
-
1973
- 1973-08-14 DE DE19732341060 patent/DE2341060A1/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU581251B2 (en) * | 1984-02-08 | 1989-02-16 | Dai Nippon Insatsu Kabushiki Kaisha | Base film for three-dimensional conformability |
| EP0177829A3 (en) * | 1984-09-26 | 1987-05-06 | Dai Nippon Insatsu Kabushiki Kaisha | Base film for three-dimensional conformability |
| WO1996003267A1 (en) * | 1994-07-21 | 1996-02-08 | Decoma International Inc. | Method and apparatus for manufacturing an injection-molded article with outer film secured thereto |
| US6090336A (en) * | 1994-07-21 | 2000-07-18 | Decoma International Inc. | Method for manufacturing an injection-molded article with outer film secured thereto |
| DE19641134A1 (en) * | 1996-10-05 | 1998-04-16 | Happich Gmbh Gebr | Interior part |
| DE10059471A1 (en) * | 1999-12-01 | 2001-07-05 | Faurecia Sieges Automobile | Method for producing a seat or comparable cushion for a motor vehicle |
| DE10059471B4 (en) * | 1999-12-01 | 2005-06-30 | Faurecia Sièges d'Automobile S.A. | Method for producing a seat or comparable pad for a motor vehicle |
| EP1320457B1 (en) * | 2000-09-29 | 2016-04-20 | Trexel, Inc. | Method for forming in-mold decorated article |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2252042A1 (en) | 1974-05-09 |
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