JPS54135864A - Manufacturing of thermoplastic resin foamed article - Google Patents

Manufacturing of thermoplastic resin foamed article

Info

Publication number
JPS54135864A
JPS54135864A JP4052078A JP4052078A JPS54135864A JP S54135864 A JPS54135864 A JP S54135864A JP 4052078 A JP4052078 A JP 4052078A JP 4052078 A JP4052078 A JP 4052078A JP S54135864 A JPS54135864 A JP S54135864A
Authority
JP
Japan
Prior art keywords
article
thermoplastic resin
molded article
foaming
manufacturing
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
JP4052078A
Other languages
Japanese (ja)
Other versions
JPS5849566B2 (en
Inventor
Yutaka Yamaguchi
Atsuo Sasama
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.)
Showa Denko Materials Co Ltd
Original Assignee
Hitachi Chemical 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 Hitachi Chemical Co Ltd filed Critical Hitachi Chemical Co Ltd
Priority to JP53040520A priority Critical patent/JPS5849566B2/en
Publication of JPS54135864A publication Critical patent/JPS54135864A/en
Publication of JPS5849566B2 publication Critical patent/JPS5849566B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To manufacture a colorless foamed article having a low density and improved touch, and containing fine bubbles uniformly in the surface layer, by applying a substance which exothermally decomposes under the foaming condition of the foamable resin, to the surface of a thermoplastic resin molded article containing a decomposition-type foaming the article by heating.
CONSTITUTION: In the manufacturing of a thermoplastic resin foamed article by heating a molded article containing a decomposition-type foaming agent, the foaming is carried out in the presence of a substance which exothermally decomposes under the foaming condition of the above molded article, on the surface of said molded article. The substance to be applied to the surface of the article is pref. dinitrosopentamethylenetertramine, and it is applied e.g. by scattering the powder to the surface.
COPYRIGHT: (C)1979,JPO&Japio
JP53040520A 1978-04-06 1978-04-06 Manufacturing method of polyolefin resin foam Expired JPS5849566B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53040520A JPS5849566B2 (en) 1978-04-06 1978-04-06 Manufacturing method of polyolefin resin foam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53040520A JPS5849566B2 (en) 1978-04-06 1978-04-06 Manufacturing method of polyolefin resin foam

Publications (2)

Publication Number Publication Date
JPS54135864A true JPS54135864A (en) 1979-10-22
JPS5849566B2 JPS5849566B2 (en) 1983-11-05

Family

ID=12582780

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53040520A Expired JPS5849566B2 (en) 1978-04-06 1978-04-06 Manufacturing method of polyolefin resin foam

Country Status (1)

Country Link
JP (1) JPS5849566B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61266046A (en) * 1985-05-21 1986-11-25 Higashifuji Seisakusho:Kk Reversible rotary geared motor
JPH059726Y2 (en) * 1986-11-29 1993-03-10

Also Published As

Publication number Publication date
JPS5849566B2 (en) 1983-11-05

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