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GB1113386A - A method of producing a foamed polystyrene sheet with oriented cell structure,and foamed polystyrene sheet thus produced - Google Patents

A method of producing a foamed polystyrene sheet with oriented cell structure,and foamed polystyrene sheet thus produced

Info

Publication number
GB1113386A
GB1113386A GB4805266A GB4805266A GB1113386A GB 1113386 A GB1113386 A GB 1113386A GB 4805266 A GB4805266 A GB 4805266A GB 4805266 A GB4805266 A GB 4805266A GB 1113386 A GB1113386 A GB 1113386A
Authority
GB
United Kingdom
Prior art keywords
sheet
foamed
foamed polystyrene
compression
cell structure
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.)
Expired
Application number
GB4805266A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHELL INT RESEARCH
Shell Internationale Research Maatschappij BV
Original Assignee
SHELL INT RESEARCH
Shell Internationale Research Maatschappij BV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHELL INT RESEARCH, Shell Internationale Research Maatschappij BV filed Critical SHELL INT RESEARCH
Publication of GB1113386A publication Critical patent/GB1113386A/en
Expired legal-status Critical Current

Links

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
    • B29C44/34—Auxiliary operations
    • B29C44/35—Component parts; Details or accessories
    • B29C44/352—Means for giving the foam different characteristics in different directions
    • 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
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/36—After-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2325/02—Homopolymers or copolymers of hydrocarbons
    • C08J2325/04—Homopolymers or copolymers of styrene
    • C08J2325/06—Polystyrene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

Foamed polystyrene sheets with oriented cell structure are produced by compressing by at least 50% of the initial thickness a foamed polystyrene sheet, while it is in a heat-plasticized condition and with both sides sealed, and then allowing the foamed sheet to expand, thus forming a foamed layer with cell walls which are predominantly directed normal to the sheet and increasing the resistance thereof to compression. The sides of the sheet can be sealed by a covering layer, e.g. paper, fabric webs, metal foil, thermoplastic films, rubber sheets or layers of resin, which may be applied simultaneously with the compression operation and which may remain permanently on the foamed sheet. The sheet may be heated to a plasticized condition during the compression operation, e.g. by providing the compression elements with heating means. Said compression elements may comprise pressure rolls, the diameter of the end portions of which are either smaller than the central portion so that the edges of the sheet are less compressed and thus retain their closed cell structure and serve as a lateral sealing of the sheet, or larger than the central portion so that the edges of the sheet are more compressed so as to form a thin compact layer, again laterally sealing the sheet.
GB4805266A 1965-10-28 1966-10-26 A method of producing a foamed polystyrene sheet with oriented cell structure,and foamed polystyrene sheet thus produced Expired GB1113386A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6513958A NL6513958A (en) 1965-10-28 1965-10-28

Publications (1)

Publication Number Publication Date
GB1113386A true GB1113386A (en) 1968-05-15

Family

ID=19794495

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4805266A Expired GB1113386A (en) 1965-10-28 1966-10-26 A method of producing a foamed polystyrene sheet with oriented cell structure,and foamed polystyrene sheet thus produced

Country Status (7)

Country Link
JP (1) JPS4942914B1 (en)
BE (1) BE688908A (en)
DE (1) DE1629657B1 (en)
DK (1) DK117597B (en)
GB (1) GB1113386A (en)
NL (2) NL6513958A (en)
SE (1) SE315398B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000002428A1 (en) * 1998-07-02 2000-01-13 Telefonaktiebolaget Lm Ericsson Slowly expanding gasket and method for use thereof
CN112476930A (en) * 2020-11-17 2021-03-12 安徽智汇和科技服务有限公司 Box body foaming mold
CN112831185A (en) * 2021-02-23 2021-05-25 中北大学 Gradient Conductivity-Uniform Thermal Conductivity Bifunctional Network Low Reflection High Absorption Electromagnetic Shielding Polymer Composites

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATA129392A (en) * 1992-06-25 1999-02-15 Greiner & Soehne C A FOAM PLATE, IN PARTICULAR MOLDED PART FROM ONE OR MORE FOAM PLATES
CN110834399B (en) * 2019-11-19 2022-01-11 扬州科丰高新产业投资开发集团有限公司 Automatic processing equipment of foaming panel for high-quality air conditioning unit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR835660A (en) * 1938-03-23 1938-12-28 American Rolling Mill Co Trio trains
DE1121322B (en) * 1956-10-25 1962-01-04 Bayer Ag Process for the production of compressed foam bodies with outer layers made of thermoplastics

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6250647B1 (en) 1908-07-29 2001-06-26 Telefonaktiebolaget Lm Ericsson (Publ) Slowly expanding gasket and method for use thereof
WO2000002428A1 (en) * 1998-07-02 2000-01-13 Telefonaktiebolaget Lm Ericsson Slowly expanding gasket and method for use thereof
CN112476930A (en) * 2020-11-17 2021-03-12 安徽智汇和科技服务有限公司 Box body foaming mold
CN112831185A (en) * 2021-02-23 2021-05-25 中北大学 Gradient Conductivity-Uniform Thermal Conductivity Bifunctional Network Low Reflection High Absorption Electromagnetic Shielding Polymer Composites
CN112831185B (en) * 2021-02-23 2022-09-20 中北大学 Gradient electric conduction-uniform heat conduction dual-function network low-reflection high-absorption electromagnetic shielding polymer composite material

Also Published As

Publication number Publication date
DE1629657B1 (en) 1971-04-01
DK117597B (en) 1970-05-11
JPS4942914B1 (en) 1974-11-18
BE688908A (en) 1967-04-26
NL6513958A (en) 1967-05-02
SE315398B (en) 1969-09-29
NL135470C (en)

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