FR2306980A1 - N,N'-Disubstd. sulphonyl-hydrazines useful as blowing agents - by reacting hydrocarbyl isocyanate with hydrocarbyl hydrocarbyl-sulphonyl-carbazate and base - Google Patents

N,N'-Disubstd. sulphonyl-hydrazines useful as blowing agents - by reacting hydrocarbyl isocyanate with hydrocarbyl hydrocarbyl-sulphonyl-carbazate and base

Info

Publication number
FR2306980A1
FR2306980A1 FR7610557A FR7610557A FR2306980A1 FR 2306980 A1 FR2306980 A1 FR 2306980A1 FR 7610557 A FR7610557 A FR 7610557A FR 7610557 A FR7610557 A FR 7610557A FR 2306980 A1 FR2306980 A1 FR 2306980A1
Authority
FR
France
Prior art keywords
hydrocarbyl
sulphonyl
disubstd
blowing agents
carbazate
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.)
Granted
Application number
FR7610557A
Other languages
French (fr)
Other versions
FR2306980B1 (en
Inventor
Byron Alexander Hunter
Franklin Herbert Barrows
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.)
Uniroyal Inc
Original Assignee
Uniroyal Inc
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 Uniroyal Inc filed Critical Uniroyal Inc
Publication of FR2306980A1 publication Critical patent/FR2306980A1/en
Application granted granted Critical
Publication of FR2306980B1 publication Critical patent/FR2306980B1/fr
Granted 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
    • C08J9/104—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof
    • C08J9/105—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof containing sulfur

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

N,N'-Disubstd. sulphonyl-hydrazines useful as blowing agents for plastics and rubbers have the formula (I): R(SO2NR1NHR2)n (where R is hydrocarbyl; R1 is CONHR4;R2 is COOR3; R3 is hydrocarbyl; R4 is H or hydrocarbyl; and n is 1 or 2). Cpds. (I) decompose in a non-explosive, controlled manner at elevated temps. to release small amts. of nitrogen and larger amts. of carbon dioxide and gaseous hydrocarbon; do not attack the polymers or the appts.; can be used with a wide range of polymers, and esp. useful for expansion of polymers above 200 degrees C. Some cpds. can be used above 250 degrees C.
FR7610557A 1975-04-11 1976-04-09 N,N'-Disubstd. sulphonyl-hydrazines useful as blowing agents - by reacting hydrocarbyl isocyanate with hydrocarbyl hydrocarbyl-sulphonyl-carbazate and base Granted FR2306980A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US56716975A 1975-04-11 1975-04-11
US63847475A 1975-12-08 1975-12-08

Publications (2)

Publication Number Publication Date
FR2306980A1 true FR2306980A1 (en) 1976-11-05
FR2306980B1 FR2306980B1 (en) 1980-06-20

Family

ID=27074383

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7610557A Granted FR2306980A1 (en) 1975-04-11 1976-04-09 N,N'-Disubstd. sulphonyl-hydrazines useful as blowing agents - by reacting hydrocarbyl isocyanate with hydrocarbyl hydrocarbyl-sulphonyl-carbazate and base

Country Status (3)

Country Link
JP (1) JPS5917108B2 (en)
FR (1) FR2306980A1 (en)
NL (1) NL7603435A (en)

Also Published As

Publication number Publication date
JPS5917108B2 (en) 1984-04-19
JPS51118722A (en) 1976-10-18
NL7603435A (en) 1976-10-13
FR2306980B1 (en) 1980-06-20

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Legal Events

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