GB1140146A - Improvements in foamed copolymer articles - Google Patents

Improvements in foamed copolymer articles

Info

Publication number
GB1140146A
GB1140146A GB48487/66A GB4848766A GB1140146A GB 1140146 A GB1140146 A GB 1140146A GB 48487/66 A GB48487/66 A GB 48487/66A GB 4848766 A GB4848766 A GB 4848766A GB 1140146 A GB1140146 A GB 1140146A
Authority
GB
United Kingdom
Prior art keywords
solution
foamed
film
copolymerization
oct
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
GB48487/66A
Inventor
Carl Fraser Mathews
Thomas John Komoly
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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
Priority claimed from GB18329/65A external-priority patent/GB1088383A/en
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB48487/66A priority Critical patent/GB1140146A/en
Priority to BE705163D priority patent/BE705163A/xx
Priority to LU54719D priority patent/LU54719A1/xx
Priority to FR125614A priority patent/FR93767E/en
Priority to DE19671745005 priority patent/DE1745005A1/en
Priority to NL6714535A priority patent/NL6714535A/xx
Priority to ES346528A priority patent/ES346528A2/en
Publication of GB1140146A publication Critical patent/GB1140146A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/142—Compounds containing oxygen but no halogen atom
    • 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
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • B29C44/507—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through an annular die
    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • B29C67/202—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored comprising elimination of a solid or a liquid ingredient
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F22/00—Homopolymers and 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 a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides or nitriles thereof
    • C08F22/04—Anhydrides, e.g. cyclic anhydrides
    • 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
    • C08J2335/00—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 a carboxyl radical, and containing at least one other carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Derivatives of such polymers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

1,140,146. Extrusion of foamed plastics. IMPERIAL CHEMICAL INDUSTRIES Ltd. 2 Oct., 1967 [28 Oct., 1966], No. 48487/66. Addition to 1,088,383. Heading B5A. [Also in Division C3] A film or board of foamed copolymer is produced by extruding a composition comprising a copolymer and a blowing agent through a film or board-forming die in which the composition is produced by the steps of forming a solution of styrene and maleic anhydride in a solvent which will not inhibit the copolymerization, carrying out the copolymerization and, while forcing forward in a vented extruder, removing at least part of the solvent by evaporation. In an example (1) a solution of styrene in methyl ethyl ketone was fed to a twin-screw extruder with a solution of maleic anhydride and ditert.-butyl peroxide in methyl ethyl ketone, after complete polymerization the solution was fed to a single-screw extruder in which it was partially devolatilized, extruded through an annular die and foamed; the emergent film was blown to a bubble, collapsed between nip rollers, slit, opened out and then compressed between rollers.
GB48487/66A 1965-04-30 1966-10-28 Improvements in foamed copolymer articles Expired GB1140146A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB48487/66A GB1140146A (en) 1965-04-30 1966-10-28 Improvements in foamed copolymer articles
BE705163D BE705163A (en) 1965-04-30 1967-10-16
LU54719D LU54719A1 (en) 1965-04-30 1967-10-23
FR125614A FR93767E (en) 1965-04-30 1967-10-24 Sheets and panels of foamed copolymers and their manufacturing process.
DE19671745005 DE1745005A1 (en) 1965-04-30 1967-10-26 Process for the production of foils or sheets from copolymer foam
NL6714535A NL6714535A (en) 1965-04-30 1967-10-26
ES346528A ES346528A2 (en) 1966-10-28 1967-10-28 Procedure for the obtaining of synthetic sheets. (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB18329/65A GB1088383A (en) 1965-04-30 1965-04-30 Improvements in copolymer articles
GB228166 1966-01-18
GB48487/66A GB1140146A (en) 1965-04-30 1966-10-28 Improvements in foamed copolymer articles

Publications (1)

Publication Number Publication Date
GB1140146A true GB1140146A (en) 1969-01-15

Family

ID=27254052

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48487/66A Expired GB1140146A (en) 1965-04-30 1966-10-28 Improvements in foamed copolymer articles

Country Status (6)

Country Link
BE (1) BE705163A (en)
DE (1) DE1745005A1 (en)
FR (1) FR93767E (en)
GB (1) GB1140146A (en)
LU (1) LU54719A1 (en)
NL (1) NL6714535A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2037285A1 (en) * 1969-03-29 1970-12-31 Basf Ag
GB2309698A (en) * 1996-01-31 1997-08-06 Chi Mei Corp Process for removing volatile components from low molecular weight copolymer solutions

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2420373A3 (en) 2010-08-20 2012-06-06 Rundpack AG Method for producing an opaque moulded part

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2037285A1 (en) * 1969-03-29 1970-12-31 Basf Ag
GB2309698A (en) * 1996-01-31 1997-08-06 Chi Mei Corp Process for removing volatile components from low molecular weight copolymer solutions
GB2309698B (en) * 1996-01-31 2000-04-05 Chi Mei Corp Process for removing volatile components from low molecular weight copolymer solutions

Also Published As

Publication number Publication date
LU54719A1 (en) 1968-01-26
FR93767E (en) 1969-05-16
BE705163A (en) 1968-04-16
NL6714535A (en) 1968-04-29
DE1745005A1 (en) 1972-03-30

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