GB1440268A - Expandable styrene polymers which are suitable for the manufacture of cellular articles which can rapidly be re leased from the mould - Google Patents

Expandable styrene polymers which are suitable for the manufacture of cellular articles which can rapidly be re leased from the mould

Info

Publication number
GB1440268A
GB1440268A GB5206973A GB5206973A GB1440268A GB 1440268 A GB1440268 A GB 1440268A GB 5206973 A GB5206973 A GB 5206973A GB 5206973 A GB5206973 A GB 5206973A GB 1440268 A GB1440268 A GB 1440268A
Authority
GB
United Kingdom
Prior art keywords
styrene
butene
polymer
polymeric material
ethylene
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
GB5206973A
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.)
Huels AG
Original Assignee
Chemische Werke Huels AG
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 Chemische Werke Huels AG filed Critical Chemische Werke Huels AG
Publication of GB1440268A publication Critical patent/GB1440268A/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
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • 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
    • C08J9/16—Making expandable particles
    • C08J9/20—Making expandable particles by suspension polymerisation in the presence of the blowing agent
    • 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
    • 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
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers

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)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

1440268 Expandable styrene polymer compositions CHEMISCHE WERKE HULS AG 9 Nov 1973 [11 Nov 1972] 52069/73 Headings C3C and C3P An expandable styrene polymer composition contains uniformly distributed therein as a discontinuous phase polymeric material which was introduced before the end of the polymerization to form the styrene polymer (which contains at least 50% by wt. of styrene units) and which is water-insoluble but styrene monomer-soluble, the polymeric material comprising 0À01-2À0% by wt. (relative to the styrene polymer) of a butene-1 polymer containing more than 50% by wt. of butene-1 and the butene-1 polymer constituting at least 50% by wt. of the polymeric material. The composition is made by polymerizing styrene, with up to 50% by wt. of one or more copolymerizable olefininc compounds, in aqueous suspension with mechanical agitation, in the presence of a blowing agent and the above polymeric material. In the examples styrene was polymerized in aqueous suspension in the presence of benzoyl peroxide, butyl perbenzoate polyvinyl alcohol, pentane and either atactic or isotactic polybutene-1 or a copolymer of butene-1 and propene, ethylene, hexene or ethylene and propene. The polymerization system may also contain olimeric α-methyl styrene as a regulator and an ethylene-vinyl acetate copolymer may be present with the butene-1 polymer. The expandable composition may be in the form of beads which are pre-foamed with steam and then foamed in a perforated mould.
GB5206973A 1972-11-11 1973-11-09 Expandable styrene polymers which are suitable for the manufacture of cellular articles which can rapidly be re leased from the mould Expired GB1440268A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722255397 DE2255397C3 (en) 1972-11-11 1972-11-11 Expandable styrene polymers that are suitable for the production of rapidly demoldable cell bodies

Publications (1)

Publication Number Publication Date
GB1440268A true GB1440268A (en) 1976-06-23

Family

ID=5861499

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5206973A Expired GB1440268A (en) 1972-11-11 1973-11-09 Expandable styrene polymers which are suitable for the manufacture of cellular articles which can rapidly be re leased from the mould

Country Status (8)

Country Link
JP (1) JPS5065A (en)
DE (1) DE2255397C3 (en)
FI (1) FI57768C (en)
FR (1) FR2206341B1 (en)
GB (1) GB1440268A (en)
IT (1) IT997796B (en)
NL (1) NL7315393A (en)
SE (1) SE395903B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5821712Y2 (en) * 1979-10-12 1983-05-09 株式会社 大同商工 Composite laminated buffer sheet
JPS61228035A (en) * 1985-04-01 1986-10-11 Sekisui Plastics Co Ltd Production of foamed styrene resin

Also Published As

Publication number Publication date
JPS5065A (en) 1975-01-06
FR2206341B1 (en) 1979-04-06
FI57768C (en) 1980-10-10
DE2255397A1 (en) 1974-05-30
NL7315393A (en) 1974-05-14
FR2206341A1 (en) 1974-06-07
SE395903B (en) 1977-08-29
FI57768B (en) 1980-06-30
DE2255397C3 (en) 1981-11-12
DE2255397B2 (en) 1980-12-04
IT997796B (en) 1975-12-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee