JPS5690840A - Expanding method of unsaturated polyester resin - Google Patents

Expanding method of unsaturated polyester resin

Info

Publication number
JPS5690840A
JPS5690840A JP16691879A JP16691879A JPS5690840A JP S5690840 A JPS5690840 A JP S5690840A JP 16691879 A JP16691879 A JP 16691879A JP 16691879 A JP16691879 A JP 16691879A JP S5690840 A JPS5690840 A JP S5690840A
Authority
JP
Japan
Prior art keywords
hydrazide
polyester resin
unsaturated polyester
mixt
foam
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.)
Pending
Application number
JP16691879A
Other languages
Japanese (ja)
Inventor
Shinji Murakami
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.)
EIWA KASEI KOGYO KK
Eiwa Chemical Industries Co Ltd
Original Assignee
EIWA KASEI KOGYO KK
Eiwa Chemical Industries Co 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 EIWA KASEI KOGYO KK, Eiwa Chemical Industries Co Ltd filed Critical EIWA KASEI KOGYO KK
Priority to JP16691879A priority Critical patent/JPS5690840A/en
Publication of JPS5690840A publication Critical patent/JPS5690840A/en
Pending legal-status Critical Current

Links

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

PURPOSE: To obtain at low cost a foam having fine uniform cells with a high expansion ratio, by adding a metal salt of azodicarboxylic acid together with a hydrazide compd. to an unsaturated polyester resin, and expanding the mixt.
CONSTITUTION: 0.1W20pts.wt. hydrazide compd. (B) (e.g. maleic acid hydrazide or toluenesulfonyl hydrazide), 0.01W5pts.wt. metal salt of azodicarboxylic acid (C) (e.g. dipotassium azodicarboxylate or barium azodicarboxylate) and a crosslinking agent (D) (e.g. benzoyl peroxide) and, if necessary, an accelerator (E) (e.g. cobalt naphthenate), are mixed with 100pts.wt. unsaturated polyester resin compsn. (A). The mixt. is expanded at a temp. of not higher than 80°C and cured to easily obtain a foam without exhibiting a phenomenon which involves a rapid viscosity increase near a gelling temp.
COPYRIGHT: (C)1981,JPO&Japio
JP16691879A 1979-12-24 1979-12-24 Expanding method of unsaturated polyester resin Pending JPS5690840A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16691879A JPS5690840A (en) 1979-12-24 1979-12-24 Expanding method of unsaturated polyester resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16691879A JPS5690840A (en) 1979-12-24 1979-12-24 Expanding method of unsaturated polyester resin

Publications (1)

Publication Number Publication Date
JPS5690840A true JPS5690840A (en) 1981-07-23

Family

ID=15840054

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16691879A Pending JPS5690840A (en) 1979-12-24 1979-12-24 Expanding method of unsaturated polyester resin

Country Status (1)

Country Link
JP (1) JPS5690840A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0055087A1 (en) * 1980-12-22 1982-06-30 Uniroyal, Inc. Compositions and methods for producing expanded and cured polyester resin
EP0105644A2 (en) * 1982-09-30 1984-04-18 UNIROYAL CHEMICAL COMPANY, Inc. Azocarboxylate blowing agent

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0055087A1 (en) * 1980-12-22 1982-06-30 Uniroyal, Inc. Compositions and methods for producing expanded and cured polyester resin
EP0105644A2 (en) * 1982-09-30 1984-04-18 UNIROYAL CHEMICAL COMPANY, Inc. Azocarboxylate blowing agent

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