IE37883B1 - Blowing agent compositions - Google Patents

Blowing agent compositions

Info

Publication number
IE37883B1
IE37883B1 IE113973A IE113973A IE37883B1 IE 37883 B1 IE37883 B1 IE 37883B1 IE 113973 A IE113973 A IE 113973A IE 113973 A IE113973 A IE 113973A IE 37883 B1 IE37883 B1 IE 37883B1
Authority
IE
Ireland
Prior art keywords
blowing agent
polymer
expanded
july
polyethylene
Prior art date
Application number
IE113973A
Other versions
IE37883L (en
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 IE37883L publication Critical patent/IE37883L/en
Publication of IE37883B1 publication Critical patent/IE37883B1/en

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

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)

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. [GB1423175A]
IE113973A 1972-07-11 1973-07-06 Blowing agent compositions IE37883B1 (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
IE37883L IE37883L (en) 1974-01-11
IE37883B1 true IE37883B1 (en) 1977-11-09

Family

ID=10336584

Family Applications (1)

Application Number Title Priority Date Filing Date
IE113973A IE37883B1 (en) 1972-07-11 1973-07-06 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)

Families Citing this family (4)

* 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
DE2963152D1 (en) * 1978-07-03 1982-08-12 Mobay Chemical Corp Process for preparing a blowing agent concentrate
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
JPS49124162A (en) 1974-11-27
NL7309608A (en) 1974-01-15
IE37883L (en) 1974-01-11
GB1423175A (en) 1976-01-28
IT994930B (en) 1975-10-20
BE802082A (en) 1974-01-09
DE2334808A1 (en) 1974-01-24

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