ES436232A1 - Process for expanding thermoplastic polymers - Google Patents

Process for expanding thermoplastic polymers

Info

Publication number
ES436232A1
ES436232A1 ES436232A ES436232A ES436232A1 ES 436232 A1 ES436232 A1 ES 436232A1 ES 436232 A ES436232 A ES 436232A ES 436232 A ES436232 A ES 436232A ES 436232 A1 ES436232 A1 ES 436232A1
Authority
ES
Spain
Prior art keywords
blowing agent
thermoplastic polymers
thermoplastic polymer
expanding
expanding thermoplastic
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
ES436232A
Other languages
Spanish (es)
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.)
Fisons Ltd
Original Assignee
Fisons 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
Application filed by Fisons Ltd filed Critical Fisons Ltd
Publication of ES436232A1 publication Critical patent/ES436232A1/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
    • C08J9/06—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 chemical blowing agent
    • C08J9/08—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 chemical blowing agent developing carbon dioxide

Landscapes

  • Chemical & Material Sciences (AREA)
  • General 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)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A process for expanding a thermoplastic polymer, comprising heating a composition comprising a thermoplastic polymer, preferably one with a treatment temperature greater than 200ºC, and a blowing agent to cause thermal decomposition of the blowing agent, and wherein As the primary blowing agent, zinc carbonate and/or cadmium carbonate are used, and preferably a nucleating agent is also present, particularly a particular solid with an average particle size of less than 100 microns. (Machine-translation by Google Translate, not legally binding)
ES436232A 1974-04-03 1975-04-02 Process for expanding thermoplastic polymers Expired ES436232A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1476374A GB1466427A (en) 1974-04-03 1974-04-03 Process for expanding thermoplastic polymers

Publications (1)

Publication Number Publication Date
ES436232A1 true ES436232A1 (en) 1977-08-01

Family

ID=10047062

Family Applications (1)

Application Number Title Priority Date Filing Date
ES436232A Expired ES436232A1 (en) 1974-04-03 1975-04-02 Process for expanding thermoplastic polymers

Country Status (17)

Country Link
JP (1) JPS50140575A (en)
AR (1) AR207773A1 (en)
AU (1) AU7922975A (en)
BE (1) BE827088A (en)
CA (1) CA1184000A (en)
CH (1) CH609996A5 (en)
DE (1) DE2513033A1 (en)
DK (1) DK140975A (en)
ES (1) ES436232A1 (en)
FR (1) FR2266718B1 (en)
GB (1) GB1466427A (en)
IE (1) IE41220B1 (en)
IT (1) IT1034815B (en)
NL (1) NL7503471A (en)
NO (1) NO750830L (en)
SE (1) SE7503788L (en)
ZA (1) ZA751491B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1100697A (en) * 1976-12-22 1981-05-05 General Electric Company Foamable thermoplastic polyester compositions
JPS6045656B2 (en) * 1979-06-29 1985-10-11 三井東圧化学株式会社 Foamable thermoplastic resin composition
US4711921A (en) * 1982-11-12 1987-12-08 The B. F. Goodrich Company Stabilization of vinyl chloride polymers
DE102009050807A1 (en) * 2009-10-27 2011-06-30 Bayerische Motoren Werke Aktiengesellschaft, 80809 Injection molding tool has tool lower part and tool upper part displaceable in process direction, and affecting or sealing surfaces
JP2019189830A (en) * 2018-04-27 2019-10-31 日立化成テクノサービス株式会社 Polycarbonate extrusion chemical foam and method for producing the same

Also Published As

Publication number Publication date
CA1184000A (en) 1985-03-12
DK140975A (en) 1975-10-04
CH609996A5 (en) 1979-03-30
NO750830L (en) 1975-10-06
JPS50140575A (en) 1975-11-11
AU7922975A (en) 1976-09-23
IE41220L (en) 1975-10-03
BE827088A (en) 1975-09-24
FR2266718A1 (en) 1975-10-31
GB1466427A (en) 1977-03-09
AR207773A1 (en) 1976-10-29
NL7503471A (en) 1975-10-07
ZA751491B (en) 1976-06-30
DE2513033A1 (en) 1975-10-16
SE7503788L (en) 1975-10-06
FR2266718B1 (en) 1979-01-12
IT1034815B (en) 1979-10-10
IE41220B1 (en) 1979-11-07

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