TWI308163B - Laser-weldable transparent, translucent, or opaque plastic materials that are tinted by colorants - Google Patents

Description

1308163 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a transparent, translucent 'opaque plastic material colored by a dye, which has laser-weldable particles because it contains laser-sensitive particles of nanometer scale. '' and the method of preparing the glue material and its use. [Prior Art] The use of laser energy for the splicing of plastic parts is known in nature. The function of the laser weldability is generated by the laser energy absorbed by the plastic material, and the laser energy can directly interact with the polymer or indirectly add a laser sensitizer to the plastic material to obtain the laser. Solderability. The laser sensitive y can be used for the organic dye or by the absorption of the laser energy, which can lead to the partial addition of the plastic. In laser welding, the plastic material is so strongly entangled in the joint region by absorbing the laser energy, so that the material (10)' and the two members can be welded to each other. ... In practice, in the laser welding technique, the soil + splicing method, the principle of the formation of the composite between the joint partners is based on the Raymond, a > source (which has sufficient light to cope with the laser source) Transparency) - the bonding partner, having a specific wavelength 'so that when the radiation reaches the bonding label located below, it will absorb the effect there, so that the titanium is released, so, in the joint partner Touching 13⁄4卩β in 'not only the absorbing material, but... the contact & field is prepared and the transparent material is also partially melted and the part 'It is used by the 'after cooling' to produce a composite using this method 'two The components can be welded to each other. , the laser weldability and content, and the properties of any of the "sensitive additives of the laser wavelength and the light power of the use of the plastic 99875.doc 1308163 adhesive materials and / or the properties of the polymer Relationship. In addition to c〇2 and excimer lasers, Nd:YAG lasers with a characteristic wavelength of 1064 nm and 532 nm are used in this technology and, more recently, even in diodes. The _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ In terms of laser welding, it is intended to be made into a mold-casting compound with f-absorbing properties, so it is most often equipped with carbon black. - A method of laser-bonding plastic molded parts, in Μ Μ a In the above description, the zonal laser beam is guided through the laser transparency molding 2I, and causes heating in the laser absorbing molding member ^ by welding. These cleavage parts contain laser transparency and laser absorbing dyes and pigments (especially slave black) which can be adjusted to each other and adjusted in such a way as to produce a uniform color imprint. This material is not inherently transparent. Since carbon black can cause strong black coloration even at low/minus, the product can only have a dark or gray hue. Moreover, transparent and/or laser transparent materials can now be soldered to opaque colored materials. In principle, according to the teaching of M 10054859 A1, the same color 2 laser transparency joint groove and laser absorbing joint lap can be set. However, :: to completely different dyes. In this case, the person skilled in the art must conduct the test. Under the influence of the environment, the same color setting is carried out by using different dyes under m. 'Typically having $ π ± one day leads to no η °, aging f, therefore, when used and always has s Different color variations. 99875.doc 1308163 The color borrowing method combines two white hearts, the same color/same color, for the difficult light setting or the white or light color setting, and H Saki' may be unsatisfactory, reported _ or; Can not shoot welding. Therefore, there is a need to describe the combined plastic material by laser welding. The above-mentioned auto-related technology has not been known to have a clear definition, and can be freely selected. 2 transparent coloring, translucent coloring, and opaque coloring of the laser can be used to make plastics and other anti-aging and anti-aging plastics. Materials.

SUMMARY OF THE INVENTION The present invention is based on the object of providing a transparent, translucent, or opaque laser weldable plastic material that is colored via a dye, particularly for such dyes having a light tint. According to this, it can be found that the laser for plastic materials is sensitive! • Raw Additives 'The use of such additives allows the plastic material to have laser weldability' without compromising the transparency and/or color of the material. "The present invention describes a plastic material that contains a laser sensitive additive that does not affect the inherent color of the plastic. It is suitable for the coloring and aging of plastics. These plastic materials basically contain dyes and/or pigments (which are inherently laser transparent) which can set the desired color and/or opacity. In the case of laser welding, a laser absorbing engagement partner made of the plastic material contains the laser sensitivity additive. Surprisingly, it has been found that transparent, translucent or opaque laser-weld plastic materials stained with dyes can be laser-markable due to the inclusion of nanometer-scale laser-sensitive particulate fillers. / or laser weldability, and the content of the nanometer-scale laser sensitive particulate filler does not damage the color and / or transparency of the plastic materials of 99875.doc 1308163. Therefore, the object of the present invention is a transparent, translucent or impervious moon-casting solderable plastic material colored by a dye, which is characterized by laser-coupled properties due to the inclusion of nanometer-sized laser sensitive particles. . Moreover, the object of the present invention is the use of nanometer-scale laser sensitive particles for the preparation of a dye-receivable plastic having a dyeing agent of more than $; ☆ eve, the present invention is directed to the method of preparing transparent translucent or opaque laser-bondable plastic materials by means of laser-sensitive particles of the I-meter scale, and the granules of the granules Incorporation into the plastic matrix by high shear. [Embodiment]: Hair: Based on the following recognition: the laser mark learned from the related art = blood level and its shape 'is not suitable for high transparency system, y, upper 'is significantly more than about 8G nanometer The critical size of one quarter of the wavelength of light. Known and ancient sensitive particles with a particle size below 8 nanometers, but this rich separation (four) (four) or small aggregation!: However, for example, as far as carbon black is concerned, this sea is only It has a significantly smaller particle than that obtained. Therefore, the collection of some of the known laser marking pigments, such as the gas jet secrets, can cause the light to appear, which will cause the plastic material to turbid. And, the present invention is based on the recognition that since the related art laser marking pigment, due to its inherent ~' will increase the material's formation, insufficient dispersion, the turbidity and damage of the material The color of the material, and the 99875.doc 1308163 color correction, must be performed, and the color corrections are not satisfactorily successful and deviate from the acceptable color. According to the invention, nanometer-scale laser sensitive particle additives are added to the plastic materials (especially for such plastic materials having transparency or translucency in nature and dyed, white or opaque plastic materials) Make it laser weldable.

Laser sensitive nanosize micro-additives known as all inorganic solids (eg, metal oxides, mixed metal oxides, complex oxides, metal sulfides, borides, phosphates, carbonates, sulfates) , nitrides, etc., and/or mixtures of these compounds) are absorbent in the wavelength range of the laser to be used' so that localized heating can occur in the embedded plastic matrix, resulting in the plastic material melt. The nanometer scale is defined as the maximum size of individual particles of these laser-sensitive metal oxides that are less than one micro-thickness in the micron range. In this case, the definition of the far dimension refers to all possible particle morphologies, such as the original granules and possible aggregates and cohesives. The particle size of the laser sensitive metal oxide is preferably (1) (10) rice, and particularly preferably 5 to (10) nanometer 1. The selected particle size is (10) nanometer/lower 1 metal oxide particle 皙h matrix transparency. This 1 is no longer visible, and will not damage the plastic in the plastic material 'the weight of the plastic material is laser sensitive metal 枭 札 A A 》, 、 〇 ' ' ' ' 亥 致 1 1 The content of the metal oxide is preferably ^. 嶋 more preferably 〇·〇〇〗 to 0.01 weight to 〇·ι 重里/〇+, in the case of all the plastics considered in the above 5 Typically, laser weldability of ^99875.doc *10·1308163 parts can be obtained from the side plastic substrate. If the particle size and concentration within the above range are properly selected, even the inherent properties of the highly transparent matrix material can be impaired. Transparency. Therefore, for laser sensitive pigments above the particle size, it is preferred to use a lower concentration, and for a particle size below 100 nm, a higher concentration may be used. Indium oxide, doped tin oxide, doped oxide record, and six-killed steel, as such nanometers for preparing transparent, translucent or opaque laser weldable plastic materials that can be dyed by dyes Scale laser sensitive particles. Particularly suitable metal The compound is indium tin oxide (yttrium oxide) or tin oxide (yttrium oxide) and doped indium tin oxide and/or antimony tin oxide. It is particularly preferably indium tin oxide and in part by partial feeding (four) m, indium tin oxide In the case of higher concentration and/or particle size in the upper range, the non-reducing "yellow" indium tin oxide can cause the plastic material to produce a visually noticeable yellowish hue and "helium color oxide steel Tin does not cause any appreciable color change. The laser sensitive particles used in accordance with the present invention are essentially: and even commercially available in a nanoscale format (i.e., size) Individual particles under the rice bran and especially within the preferred size range described herein 2' and which are typically in the form of a dispersion or in the form of a powdery non-meter-scale particle-viscous polymer which is readily redispersible. The granules are typically provided in the form of agglomerated granules (for example, a viscous polymer having a particle size of up to a few millimeters).

In the method of Ming, the granules are incorporated into the plastic matrix by the force of the spleen 4 A, and the mucus can be split into nanometer-sized original particles by the shear force of 99875.doc 1308163. The determination of the degree of aggregation can be carried out in accordance with DIN 53206 (August 1972). * Nanoscale particles can be prepared by, for example, pyrolysis methods, for example, 1 'is a metal oxide. Such methods are described, for example, in EP 1142 830 A, EP i 27q 5U a or DEI03 1 1 645. Further, as described, for example, in 22 〇 37, nanoparticles of a nanometer scale can be prepared by a precipitation method. These nanoscale laser sensitive particles can be incorporated into virtually all #! glue systems to provide laser weldability. Typical plastic materials are those in which the plastic matrix is mainly composed of poly(methyl)acrylic acid vinegar, polyamidoamine, polyaminocarboxylic acid brewing, polystyrene, styrene polymer and benzene. Copolymers, polycarbonates, polyoxyxides, polyimines, polysulfones, polyethersulfones, polyketones, polyetherketones, PEEK, polyphenylene sulfide, polyacetates (eg, pET, pEN, PBT), polycyclic rings Ethylene oxide, polyurethane urethane, polyolefin, or fluoropolymer (for example, PVDF, EFEP, PTFE) may also be incorporated into a blend containing the above plastics as a component, or incorporated from these Within the class of polymers, the _ 改变 is changed by subsequent reactions. These materials are known and are commercially available in a number of versions. According to the present invention, the advantages of these nano-sized particles are unique and transparent. Or translucent plastic systems (eg, polycarbonate, transparent polyamides (eg, Grilamid® TR55, TR9®, Tr〇gami (^5〇〇〇, CX7323), polyparaphenylene: formic acid B: vinegar, Polyhard, polyether barrier, ring-smoke copolymer (T〇pas®, Zeonex®), mercapto-acrylic polymethyl ester, and Related) because it does not affect the transparency of the material. _§_, the system to be enumerated still includes transparent polystyrene and polypropylene, and can be used by using nucleating agents or special processing conditions. 99875.doc 1308163 All parts of crystalline plastic processed into transparent film or molded body. Moreover, colored opaque plastics can be equipped with these non-meter-scale laser sensitive pigments. ' /Iso-Si amine' is usually obtained from The following components: branched and non-branched bonds. Moon-day aliphatic (6 to 14 carbon atoms), alkyl substituted or unsubstituted cycloaliphatic (14 to 22 carbon atoms), araliphatic diamine (14 to 22 carbon atoms), and fat bismuth and bismuth dicarboxylic acid (6 to 44 carbon atoms); the latter can be substituted by an aromatic dibasic acid moiety. In detail, transparent polycondensation The amine may additionally comprise a monomer component having 6 carbon atoms, 11 carbon atoms, and/or 12 carbon atoms derived from an intrinsic amine or an ω-aminocarboxylic acid. The quinone imine is preferably, but not limited to, a manufacturer of the following components: · trisodium laurate or meglumine Lauric acid, azelaic acid, sebacic acid, dodecanedioic acid, fatty acid (18 to 36 carbons; for example, trade name Pripol®), cyclohexanedicarboxylic acid' and these fatty acids can be passed through isopara-benzoic acid , terephthalic acid, naphthalene bromide, tributyl isophthalic acid partially or completely substituted. In addition, it is also possible to use non-branched bonds, branched bonds, or substituted I forms of decanediamine, dodecanediamine , quinone diamine, and hexamethylene diamine, and representatives derived from the following: trans-group-substituted/unsubstituted cycloaliphatic diamine bis(4-aminocyclohexyl)-methyl, double _ (3 _Methyl-amylaminocyclohexyl)_曱烧,双书-Aminocyclohexylpropane, bis(Aminocyclohexyl), bis-(aminomethine cyclohexane, isophorone II Amine or even substituted pentanediamine. Examples of corresponding transparent polyamines are described, for example, in Ep〇 and EP 0 725 101. It is especially preferred to use poly-F-acrylic vinegar, bisphenol polycarbonate, polyamine, and a cyclic olefin copolymer made from norbornene and a-olefin. 99875.doc -13 - 1308163 In the present invention, it does not damage the colored transparent, translucent or opaque plastic system, which can be made into a laser weldable property, the color and transparency of the material. These nanometer-scale laser-sensitive additives have the best neutral intrinsic color in pigmented transparent, translucent, and opaque systems because these rubber materials are free to choose colors.

Such dyes having a slight intrinsic absorbency in the range of between 800 and 1500 nm (i.e., laser transparency) can be considered. In order to identify such dyes, the following colorimetric index (c.i.) nomenclature was used. All dye names (e.g. 'Solvent Orange or Pigment Red 101') are C I• names (for simplicity, the name constitutes C.I. is omitted in Table 1 below).

Table 1: Laser transparency dyes

99875.doc • 14- 1308163

Some of the above dyes may be present in a structure that is slightly different from each other. example

For example, different types of pigments can be used, and the color of the pigment can be used to produce different types of pigments by the coloring action. You can tell the aunt X that CI confirms the type by adding a colon and a - number at the end, you 丨1, ^ For example, the pigment red 48 indicates the use of sodium pigmented pigment, pigment red 48: 1 The coloring pigment and the pigment red 48: 2 indicate that the coloring pigment is used, and the pigment red 48:3 indicates that the silver colored pigment and the pigment red 48··4 indicate the coloring pigment. Should understand that the text

The names of such C.I. dyes listed therein include all types and/or structures. It is recorded in the colorimetric index. The laser weldable plastic materials of the present invention are typically molded or semi-formed. Provided by the mouth. It can also be supplied as a laser weldable paint. The preparation of the highly transparent laser weldable plastic material of the present invention can be carried out in accordance with the techniques and methods which are well known and commonly used in the manufacture and reinforcement of plastics. In this case, the laser sensitive additive may be introduced into the A reactant or the reactant mixture before or during the polymerization or polycondensation reaction, or even during the reaction, it may be mixed and used. A particular method known to those skilled in the art for preparing the related 99875.doc -15-1308163 J gel. In the case of a polycondensate (e.g., polyamine), for example, the additive can be incorporated into one of the monomer components. The monomer component can then be subjected to a polycondensation reaction with the remaining reaction partners in a conventional manner. Further, after the molecules are formed, the formed high molecular weight intermediate or final product may be mixed with the laser sensitive additive, and in this case, all methods well known to those skilled in the art may be used. Depending on the formulation of the plastic matrix material, fluids, semi-fluids, and solids: weekly formulation components or monomers and additives that may be required, for example, polymerization initiation W, ampoule (eg, uv absorber, heat) Stabilizer "visual brightener, antistatic agent, softener, release agent, lubricant, dispersant, antistatic agent, and filling and strengthening agent or impact modifier, etc. The device and system (eg, reactor, stirred vessel, mixer, roll mill, extruder, etc.) are homogenized, shaped, and then cured. According to f, at the right time, Nano-scale laser sensitive particle introduction/materials are combined and uniformly combined. It is preferred that the nano-scale laser sensitive particles are combined with the gel material in the form of a concentrated premix (parent mixture). Preferably, the nano-scale laser sensitive machine is incorporated into the plastic substrate using high shear force in the plastic matrix. The mixing step can be carried out by appropriately installing the mixing roll and the extruder. Use this method: effect prevention The nanometer-scale particles coalesce into agglomerated Fenhao granules which are aggregated into larger units. The corresponding parameters are to be selected. The parameters of the temple are well known to those skilled in the art. The injection molding method can be used for molding compounds or Extrusion method, or by scales 99875.doc -16 - 1308163 into, the child to find early + ^ ' soil repair chess body and semi-finished products. Use the method known to those skilled in the art to enter #丄, 仃, the polymerization For example, by adding one or more polymerization initiators, ruthenium and ruthenium, by heating or irradiation to completely convert the monomer (group), the tempering step can be carried out after the polymerization. A laser-weldable lacquer coating is obtained by dispersing a laser sensitive oxide in a lacquer-like fabric and drying or hardening the lacquer layer. Suitable lacquers include, for example, lacquer, Physical dry material, light-emitting urethane varnish. Reactive lacquer lacquer' For example, two-component poly-concentrated laser-sensitive particles for nanometer scale ···8 _ ΑΙ with (children made of plastic materials)

After the plastic tanning parts or paint are applied, I are welded. 1 set the laser first radiation so that it can be used in the market for laser marking dreams

ς , (eg, from Bassei, type wear A

StarMarlc SMM65 or MB _ whose output power is between ol and 2.2 amps t: connected IS::: seconds (between a millimeter) and the second C rate should be determined, the selected use, smart, selected The rate of advancement is not too thorough, so avoid unnecessary carbon (4) - the solder may not be sufficient. It is also possible that the rate of entry is too high, and that p, for this purpose, does not require any 1 θ to determine the desired device in each case. /, in the plastic molded body or part of the plastic to a small, fine (10) * s, the joints to be joined must be at least in the surface area or contain materials, the Am 3 plastic surface surface of the invention The laser light is irradiated, so that the 99875.doc -17-1308163 metal oxide contained in the plastic material is sensitive. Preferably, the bonding material is not absorbed; the financial method causes the laser beam to be irradiated by the target of the present invention, and the second bonding member is made of the plastic material of the present invention, and is strongly added thereto, The material is at the boundary between the two parts and the two parts can be welded to each other. A contact pressure is required to obtain a material engagement state. Example 1: Transparently colored laser sensitive molded body

Transparent coloring, translucent coloring or no method of making laser-sensitive, gelatinous, translucent or opaque colored plastic coatings The machine is melted and injected into the injection mold to form a sheet, film or tube. The type of plastic molded body is either extruded to form a laser using a strong shear force to combine the laser sensitive compound into a nanometer-sized original particle. The laser absorptive (a) molding compound is prepared by the following method: Specific Example Aa Using the product Trogamid® CX7323 of Degussa AG (High Performance Polymers Division, Marl) as the plastic molding compound, and under 3〇〇 Mixing and granulating on a Berstorff ZE 25 33 D extruder and using nanometer scale indium tin oxide Nano® IT〇iT_〇5 C5〇〇〇 (concentration 0.01% by weight) from Nanogate as the laser sensitive The pigment was used, and a CI Pigment Red i66 (Scarlett RN, available from Ciba Spezialitatenchemie) having a concentration of 〇〇ι 重里/〇 was used as the laser clear dye. Specific Examples Ba 99875.doc • 18- 1308163 The product Vestamid L1901 from Degussa AG (High Performance Polymers Division, Marl) was used as the plastic molding compound and was extruded at 260 ° C on a Berstorff ZE 25 33 D extruder. Mixing and granulating, and using nanometer scale indium tin oxide Nano® ITO IT-05 C5000 (concentration: 0.011% by weight) from Nanogate as the laser sensitive pigment, and using a concentration of 0.01% by weight of C_I Pigment Red 166 (Scarlett RN, available from Ciba Spezialit Stenchemie) was used as the laser clear dye. Specific Example Ca The product Vestamid L1901 from Degussa AG (High Performance Polymers Division, Marl) was used as the plastic molding compound and mixed and granulated at 260 ° C on a Berstorff ZE 25 33 D extruder and used. Nano-ITO Indium Tin Oxide Nano® ITO IT-05 C5000 (concentration: 0.01% by weight) from Nanogate was used as the laser sensitive pigment, and a concentration of 0.01% by weight of CI Pigment Green 7 (Irgalite Green FNP) was obtained. As the laser clear dye 0 from Ciba Spezialit Stenchemie), the product Plexiglas® 7N from Degussa AG (Darmstadt acrylic acid department, Darmstadt) was used as the plastic molding compound. Mixing and granulating the nanometer-scale indium tin oxide Nano® ITO IT-05 C5000 from Nanogate as a laser sensitive pigment at 250 °C (concentration 0.01% by weight) As the laser clear dye, CI Pigment Red 166 (Scarlett RN, available from Ciba Spezialit Stenchemie) having a concentration of 〇.〇1% by weight was used. In the case of extrusion, it is preferred to use a higher molecular weight of such Plexiglas® 7H die cast compound. 99S75.doc -19- 1308163 DETAILED DESCRIPTION OF THE INVENTION Ea Plexiglas® 7N, a product of Degussa AG (Darmstadt, methacrylate), was used as the plastic molding compound. Mixing and granulating the nanometer-scale indium tin oxide Nano® ITO IT-05 C5000 from Nanogate as a laser sensitive pigment at 250 °C (concentration 0.01% by weight) As the laser clear dye, CI Pigment Blue 29 (quown blue) having a concentration of 0.01 wt./〇 was used. In the case of extrusion, it is preferred to use a higher molecular weight such Plexiglas® 7H die cast compound. DETAILED DESCRIPTION OF THE INVENTION Fa A Plexiglas® 7N product of Degussa AG (Darmstadt, Darmstadt) was used as the plastic molding compound. Mixing and granulating the nanometer-scale indium tin oxide Nano® ITO IT-05 C5000 from Nanogate as a laser sensitive pigment at 250 °C (concentration 0.01% by weight) As a laser clear dye, a concentration of 0.01% by weight of CI·Pigment Green 7 (Irgalite Green FNP, available from Ciba Spezialitatenchemie) was used. In the case of the extrusion process, it is also advantageous to use a relatively high molecular weight such Plexiglas® 7H die cast compound. The corresponding laser-transparent (1) die-casting compound VIII is obtained according to the above specific examples Aa to Fa, except that the laser-sensitive pigment is not added. The method of 1 method. Example 2: Colored, transparent, translucent or opaque laser sensitive method for casting PMMA semi-finished products 99875.doc -20- 1308163 Makes nanoscale indium tin oxide Nano® as a laser sensitive pigment from Nanogate IT〇ΙΤ·〇5 (:5〇00 (concentration is 〇.〇丨% by weight) with a concentration of 0.001% by weight and dispersing agent and dye together dispersed in 1000 parts of PMMA/MMA with a viscosity of 1〇〇〇cP After the addition of 1#AIBN, the mixture was poured into a reaction chamber and polymerized in a water bath for 25 hours at 5 Torr, followed by tempering at 115 t in a drying chamber to convert the remaining monomers. A laser absorbing semi-finished product is obtained. To prepare a laser-transparent semi-finished product, the batch product is prepared without using a laser-sensitive pigment. If a transparent semi-finished product is to be prepared, it is preferred to use a soluble dye obtained from the watch (named "solvent,"). Weakly scattering micronized dye pigments (e.g., ultramarine) can be used for almost transparent settings. Stronger scattering pigments are suitable for translucent or opaque variants. The use of such dyes is known to those skilled in the art. The described particular examples and shall be described in detail in DE 43 139 24.

Variant A was used as the laser clear dye with C.I. Pigment Red l66 (Scarlett RN, available from Ciba Spezialitatenchemie) having a density of 0.01%.

Variant B was used as the laser clear dye at a concentration of 0.01% by weight (: .1·Pigment Blue 29 (Citrus from Ciba Spezialitatenchemie).

Variant C was used at a concentration of 0.01% by weight. /〇 CI Pigment Green 7 (Irgalite Green GFNP 'from Ciba Spezialitatenchemie) as the laser transparent dye 0 99875.doc -21 - 1308163 Example 3: Laser welding (with 0. 01% by weight ITO content) Cast PMMA)

Contacting the surface to be welded by a transparent colored, translucent colored or opaque colored laser sensitive plastic sheet (having a size of 60 mm χ 6 mm 2 χ 2 mm) made of cast enamel having a niobium content of 0.01% by weight A second plastic sheet made of doped cast iron (which has a transparent, translucent or opaque coloration in the visible range but no laser transparency. The 忒4 plate is placed in a baasel-Lasertechnik The Starmark laser SMM65 is soldered into the base in such a way that the undoped plate is located on the top, or the position at which the laser beam penetrates first. The set point of the laser beam is set to The contact surface of the plate. The parameter frequency (225 Hz), the lightning current (22.0 amps), and the forward rate (3 〇亳m/s) are set on the control unit of the laser. The input is to be soldered. After the area size (22 X4 mm 2), the laser is activated. At the end of the welding procedure, the welded plastic plates can be removed from the device. In the manual test, a adhesion level of 4 is obtained. The adhesion is evaluated as follows: 0 No adhesion 2 4 Slight adhesion - some adhesion; separation is not difficult. Good adhesion; only laboriously separate the pieces. And may need to rely on the adhesion of the work can not be separated only Can be separated by cohesion rupture 99875.doc -22· 1308163

Example A: The molding of the molding compound Aa of the molding compound A1 was welded to a standard injection-molded plastic sheet made of the molding compound Aa (a monthly size of 60 m x 60 mm χ 2 mm) and a compound compound by the mold compound ^ The second standard injection molded plastic panel (dimensions of (4) meters paste millimeter (10) meters contact. These plates are placed in the welding base of Starmark Laser View 65 (/from her (four)), and the placement method can be The plate made of the die-cast compound V is placed at the top, that is, first, by lightning, the beam penetration point 1 will be the parameter frequency of 25 GHZ), the lamp lightning flow (4) 2 and the forward rate (10 mm / sec) The laser control unit starts the laser after the wheel has entered the area to be welded (22 x 4 mm 2 ). At the end of the welding procedure, you can self-destruct. Removal of the welded plastic sheets by the device In the handcuff test, an adhesion value of level 4 was obtained. Variable A1: Pigment Blue 29 (quown blue) was used as the _ in the _. In the manual test, the 刭黧έ2: ^ level is the adhesion value of 4. The solvent orange 60 was used as a dye in the plastic. In the manual test, 'the grade is 4: the specific example Β the molding compound Μ and the die casting compound are welded to make the molded compound Ba into an inch of 6 mm × 60 mm χ 2 mm, "injection molding plastic The plate (foot ν, ), the second 99875.doc * 23 - 1308163 made of the die-cast compound Bt, is contacted by a plastic sheet (size 6 mm mm χ 6 mm 2 χ 2 mm) which is formed by injection molding. Placed in the welding base of the Starmark Laser SMM65 (available from • Bassel-Lasertechnik) in such a way that the plate made of 'molding compound' is placed on top, ie first through the lightning beam Where. The parameter frequency (2250 Hz), the lightning flow (22.0 amps), and the forward rate (10 mm/sec) are set on the control unit of the laser. After entering the size of the area to be welded (22χ4 mm2), start the laser. At the end of the welding procedure, the welded plastic plates can be removed from the device. In the manual test, a grade of 4 is obtained.

DETAILED DESCRIPTION C Welding of a molding compound Ca and a molding compound ct: a standard injection-molded plastic sheet made of a molding compound Ca (foot-size mm, 2 mm), and made of die-cast composite Second: the quasi-shot plastic sheet (size is 6. mm)

Bassel La is placed in the welding base of the laser (10) M65 (from asertechnik), and the potting compound is formed into a 巍^ placement method that can penetrate the beam by the ^ at the top, that is, first through the thunder . The parameter frequency (225 〇 + 培), and the forward light lightning flow (22.0 ampere rate (10 mm / sec. input the size of the control unit to be 隹 4 laser control unit bucket (22x4 mm 2 for welding) Program station _ #毛卞), start the laser. When you call, ", bundle, you can move the block from the device. Specially welded plastic plate in the manual test, check Φ _, the level to the adhesion of 4 Value. 99875.doc -24- 1308163

DETAILED DESCRIPTION OF THE INVENTION D The welding of the molding compound Da and the molding compound is such that the standard sputum made of the molding compound Da is formed into a flat plastic sheet (size 60 mm x 60 mm x 2 mm) and molded by molding. The compound was contacted with a second standard injection molded plastic panel (size 6 () mm x 6 m2 mm). Place these plates in Starmarkf (10)·(from

The soldering base of BaSSel-LaS_chnik) is placed in such a way that the red plate made of the molding compound D1 is placed on top, that is, first through the laser beam. The parameter frequency (225 GHz), the lightning flow of the lamp (22 amps), and the advance rate (10 mm/sec m) are set on the control unit of the laser. After inputting the area to be welded (22 χ 4 mm 2 ), Start the laser. At the end of the welding procedure, you can remove the welded plastic plates from the device. In the manual test, the adhesion value of level 4 is obtained.

Specific Example E Welding of the molding compound Ea and the molding compound Et was carried out in a manner similar to the molding compound Da and the molding compound welding method. In the manual test, an adhesion value of level 4 was obtained.

Specific Example F Welding of the molding compound Da and the molding compound Dt was carried out in a manner similar to the welding method of the casting compound y door a & earth molding compound D1. In the manual test order, an adhesion value of level 4 was obtained. 99875.doc -25-

Claims (1)

1308 Ϊ68106472 Patent application: Jing anti-single whip for Chinese patent application scope replacement (7) year ^ month) X. Patent application scope: 1 · The use of transparent, translucent or opaque plastic materials for dyeing dyes As a laser absorptive joint groove for laser welding, the feature is laser weldability due to the fact that the plastic material contains nanometer-scale laser sensitive particles. 2. Use as claimed in item η, characterized in that the laser-sensitive particles contained therein have a particle size of from 1 to 500 nm. 3. The use of π to claim 1 or 2, characterized in that the particle size of the laser sensitive particles contained in the household is 5 to 1 nanometer. 4. The use of any one of the items 1 to 3, wherein the content of the laser sensitive particles is 0.0001 to 0.1% by weight of the plastic material. 5. The material of the request to the third of the items, characterized in that the plastic material contains metal oxides, mixed metal oxides, composite oxides, metal sulfides, borides, phosphates, carbonates, sulfates, A nitride or the like, and/or a mixture of each of the compounds, as the nanometer-scale laser-sensitive particle, as claimed in any one of claims 1 to 3, characterized in that the plastic material contains doped Indium oxide, doped tin oxide, doped cerium oxide, indium tin oxide, or lanthanum hexaboride, as the laser sensitivity of the nanometer scale 7_, the use of claim 6, characterized in that The plastic material contains indium tin oxide or antimony tin oxide as the laser sensitive particle of the nanometer scale. 8. The use of claim 7, characterized in that the plastic material contains blue indium tin oxide as the laser sensitive particle of the nanometer scale. 9. The use of any of the claims &s, characterized in that the plastic substrate is 99875-971 J18.doc 1308163 poly(meth) acrylate, polyamine, polyamino phthalate, polydihydrocarbon, Styrene polymer and styrene copolymer, polycarbonate, polyoxin, polyimide, poly; ε wind, polyhedron hard, polyketone, polyketene, polyphenylene sulfide, polyester, poly% oxygen Ethylene, polyamino phthalate, polyolefin, cycloolefin copolymer or fluorine-containing polymer. 10. The use of claim 9 as characterized in that it mainly comprises polymethyl methacrylate. 11. 12. 13. The use of π § 9 is characterized in that it mainly contains bisphenol Α 聚碳酸酯 polycarbonate. The use of claim 9 is characterized in that it mainly comprises polyamine. The use of any of items 1 to 3, characterized in that the plastic material is provided as a tantalum, semi-finished or lacquer coating. 14·If the use of claim 4, 0.001 to 〇.〇1% by weight of plastic materials 15. A method of welding (4) a molded body or a semi-finished plastic product, at least in the surface area of the product, at least - the component to be joined is contained as requested. 4: The defined plastic material is characterized in that the joint area is Ray 1. The particles contained in the plastic material are sensitive. The female compound is called the welded composite part obtained in claim 1. 99875-971118.doc