FR2268817A1 - Expansible styrene polymer particles - contg mixt of two halohydrocarbons as blowing agent - Google Patents

Expansible styrene polymer particles - contg mixt of two halohydrocarbons as blowing agent

Info

Publication number
FR2268817A1
FR2268817A1 FR7512487A FR7512487A FR2268817A1 FR 2268817 A1 FR2268817 A1 FR 2268817A1 FR 7512487 A FR7512487 A FR 7512487A FR 7512487 A FR7512487 A FR 7512487A FR 2268817 A1 FR2268817 A1 FR 2268817A1
Authority
FR
France
Prior art keywords
mixt
contg
blowing agent
polymer particles
styrene polymer
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.)
Withdrawn
Application number
FR7512487A
Other languages
French (fr)
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of FR2268817A1 publication Critical patent/FR2268817A1/en
Withdrawn legal-status Critical Current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
    • C08J9/16—Making expandable particles
    • 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
    • C08J9/143—Halogen containing compounds
    • 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

Abstract

Small, expansible styrene polymer particles contain, as blowing agent, 5-15, pref. 8-14 wt.% of a mixt. of two non-inflammable halogenated hydrocarbons, one boiling at 0 degrees C and the other boiling at >0 degrees C but below the softening pt. of the polymer, both contg. >=1 F atom per mole. The particles have good expansion and processing characteristics and form mouldings with high dimensional stability. Fire hazards during transport are eliminated.
FR7512487A 1974-04-25 1975-04-22 Expansible styrene polymer particles - contg mixt of two halohydrocarbons as blowing agent Withdrawn FR2268817A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2419969A DE2419969A1 (en) 1974-04-25 1974-04-25 FINE PARTIAL EXPANDABLE STYRENE POLYMERIZES

Publications (1)

Publication Number Publication Date
FR2268817A1 true FR2268817A1 (en) 1975-11-21

Family

ID=5913890

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7512487A Withdrawn FR2268817A1 (en) 1974-04-25 1975-04-22 Expansible styrene polymer particles - contg mixt of two halohydrocarbons as blowing agent

Country Status (11)

Country Link
JP (1) JPS50148474A (en)
AR (1) AR202346A1 (en)
AU (1) AU7989775A (en)
BE (1) BE828395A (en)
BR (1) BR7502290A (en)
DE (1) DE2419969A1 (en)
ES (1) ES436908A1 (en)
FR (1) FR2268817A1 (en)
IT (1) IT1035413B (en)
NL (1) NL7504711A (en)
SE (1) SE7504708L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4681715A (en) * 1984-11-16 1987-07-21 The Dow Chemical Company Steam expandable polymeric composition and method
CN107001520B (en) 2014-10-03 2019-07-19 波利斯太沃特公司 The processing method for recycling waste polystyrene
CN111630094B (en) 2017-11-20 2023-08-29 波利斯太沃特公司 Method for recycling polystyrene waste
EP3870640A4 (en) 2018-10-26 2022-08-03 Polystyvert Inc. Processes for recycling polystyrene waste and/or polystyrene copolymer waste

Also Published As

Publication number Publication date
IT1035413B (en) 1979-10-20
SE7504708L (en) 1975-10-27
ES436908A1 (en) 1977-01-01
BR7502290A (en) 1976-03-09
BE828395A (en) 1975-10-27
AU7989775A (en) 1976-10-14
JPS50148474A (en) 1975-11-28
AR202346A1 (en) 1975-05-30
NL7504711A (en) 1975-10-28
DE2419969A1 (en) 1975-11-13

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Legal Events

Date Code Title Description
ST Notification of lapse