GB1423175A - Blowing agent compositions - Google Patents

Blowing agent compositions

Info

Publication number
GB1423175A
GB1423175A GB3230872A GB3230872A GB1423175A GB 1423175 A GB1423175 A GB 1423175A GB 3230872 A GB3230872 A GB 3230872A GB 3230872 A GB3230872 A GB 3230872A GB 1423175 A GB1423175 A GB 1423175A
Authority
GB
United Kingdom
Prior art keywords
blowing agent
polymer
expanded
july
polyethylene
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
GB3230872A
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
Priority to GB3230872A priority Critical patent/GB1423175A/en
Priority to IE113973A priority patent/IE37883B1/en
Priority to BE133262A priority patent/BE802082A/en
Priority to DE19732334808 priority patent/DE2334808A1/en
Priority to IT2639573A priority patent/IT994930B/en
Priority to NL7309608A priority patent/NL7309608A/xx
Priority to JP7759273A priority patent/JPS49124162A/ja
Publication of GB1423175A publication Critical patent/GB1423175A/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
    • C08J9/10—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 nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102—Azo-compounds
    • C08J9/103—Azodicarbonamide
    • 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
    • C08J9/10—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 nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/104—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof

Abstract

1423175 Blowing agent compositions FISONS Ltd 5 July 1973 [11 July 1972] 32308/72 Heading C3C A blowing agent composition comprises 100 parts by wt. of tri-hydrazino-triazine and 1-20 parts by wt. of azodicarbon amide. The composition may also contain a finely divided silica containing free or combined water and may be mixed with a high temperature polymer (i.e. a thermoplastic polymer which requires expansion at 220‹ C. or above) which is then expanded by heating to a temperature below the decomposition temperature of the polymer but above the decomposition temperature of the blowing agent composition. The polymer may be nylon, polycarbonate, polystyrene, acrylonitrile/butadiene/styrene copolymer, polyethylene or polypropylene. The polymers expanded in the examples consisted of polyphenylene oxide with butyl stearate and glass-fibre reinforced polypropylene which was expanded using a master batch consisting of polyethylene, the above blowing agent and erucamide.
GB3230872A 1972-07-11 1972-07-11 Blowing agent compositions Expired GB1423175A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB3230872A GB1423175A (en) 1972-07-11 1972-07-11 Blowing agent compositions
IE113973A IE37883B1 (en) 1972-07-11 1973-07-06 Blowing agent compositions
BE133262A BE802082A (en) 1972-07-11 1973-07-09 NEW POROPHORE COMPOSITION
DE19732334808 DE2334808A1 (en) 1972-07-11 1973-07-09 EXPANDING AGENTS, THEIR PRODUCTION AND USE
IT2639573A IT994930B (en) 1972-07-11 1973-07-10 COMPOSITIONS OF SWELLING AGENTS BASED ON TRI HYDRAZINOTRIAZINE ACTIVATED WITH AZODYCARBONAMIDE AND PROCEDURE TO OBTAIN THEM
NL7309608A NL7309608A (en) 1972-07-11 1973-07-10
JP7759273A JPS49124162A (en) 1972-07-11 1973-07-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3230872A GB1423175A (en) 1972-07-11 1972-07-11 Blowing agent compositions

Publications (1)

Publication Number Publication Date
GB1423175A true GB1423175A (en) 1976-01-28

Family

ID=10336584

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3230872A Expired GB1423175A (en) 1972-07-11 1972-07-11 Blowing agent compositions

Country Status (7)

Country Link
JP (1) JPS49124162A (en)
BE (1) BE802082A (en)
DE (1) DE2334808A1 (en)
GB (1) GB1423175A (en)
IE (1) IE37883B1 (en)
IT (1) IT994930B (en)
NL (1) NL7309608A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4313873A (en) 1978-07-03 1982-02-02 Mobay Chemical Corporation Novel method for reducing the processing temperature of thermoplastic polymers
US4343912A (en) 1978-07-03 1982-08-10 Mobay Chemical Corporation Novel method for reducing the processing temperature of thermoplastic polymers and novel blowing agent concentrates produced thereby
GB2449625A (en) * 2007-01-25 2008-12-03 Borealis Tech Oy One shot foaming process for rotomoulding

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2963152D1 (en) * 1978-07-03 1982-08-12 Mobay Chemical Corp Process for preparing a blowing agent concentrate

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4313873A (en) 1978-07-03 1982-02-02 Mobay Chemical Corporation Novel method for reducing the processing temperature of thermoplastic polymers
US4343912A (en) 1978-07-03 1982-08-10 Mobay Chemical Corporation Novel method for reducing the processing temperature of thermoplastic polymers and novel blowing agent concentrates produced thereby
GB2449625A (en) * 2007-01-25 2008-12-03 Borealis Tech Oy One shot foaming process for rotomoulding

Also Published As

Publication number Publication date
BE802082A (en) 1974-01-09
NL7309608A (en) 1974-01-15
IT994930B (en) 1975-10-20
IE37883B1 (en) 1977-11-09
JPS49124162A (en) 1974-11-27
DE2334808A1 (en) 1974-01-24
IE37883L (en) 1974-01-11

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees