GB443405A - An improved process for making heat-stable polystyrol - Google Patents

An improved process for making heat-stable polystyrol

Info

Publication number
GB443405A
GB443405A GB15323/35A GB1532335A GB443405A GB 443405 A GB443405 A GB 443405A GB 15323/35 A GB15323/35 A GB 15323/35A GB 1532335 A GB1532335 A GB 1532335A GB 443405 A GB443405 A GB 443405A
Authority
GB
United Kingdom
Prior art keywords
polystyrol
stable
improved process
making heat
heat
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
GB15323/35A
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel 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 Dynamit Nobel AG filed Critical Dynamit Nobel AG
Publication of GB443405A publication Critical patent/GB443405A/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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • 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)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Heat-stable polystyrol is prepared by heating polystyrol at a raised temperature but below the decomposition temperature, that is, below about 160 DEG C. until the softening point is increased to above 80 DEG C. Specifications 243,768, 307,936, [both in Class 2 (iii)], 355,790, and 401,500 are referred to.
GB15323/35A 1934-07-23 1935-05-25 An improved process for making heat-stable polystyrol Expired GB443405A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE443405X 1934-07-23

Publications (1)

Publication Number Publication Date
GB443405A true GB443405A (en) 1936-02-27

Family

ID=6529031

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15323/35A Expired GB443405A (en) 1934-07-23 1935-05-25 An improved process for making heat-stable polystyrol

Country Status (2)

Country Link
FR (1) FR790289A (en)
GB (1) GB443405A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2496653A (en) * 1943-10-12 1950-02-07 Union Carbide & Carbon Corp Continuous bulk polymerization of styrene
US2638465A (en) * 1950-01-03 1953-05-12 Dow Chemical Co Copolymers of styrene and alphamethyl styrene and process for making the same
US2987508A (en) * 1957-03-11 1961-06-06 Dow Chemical Co Method of thermally cross-linking an alkylvinylaromatic hydrocarbon polymer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2496653A (en) * 1943-10-12 1950-02-07 Union Carbide & Carbon Corp Continuous bulk polymerization of styrene
US2638465A (en) * 1950-01-03 1953-05-12 Dow Chemical Co Copolymers of styrene and alphamethyl styrene and process for making the same
US2987508A (en) * 1957-03-11 1961-06-06 Dow Chemical Co Method of thermally cross-linking an alkylvinylaromatic hydrocarbon polymer

Also Published As

Publication number Publication date
FR790289A (en) 1935-11-16

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