JPS55146721A - Production of molded article of thermoplastic resin - Google Patents

Production of molded article of thermoplastic resin

Info

Publication number
JPS55146721A
JPS55146721A JP8876978A JP8876978A JPS55146721A JP S55146721 A JPS55146721 A JP S55146721A JP 8876978 A JP8876978 A JP 8876978A JP 8876978 A JP8876978 A JP 8876978A JP S55146721 A JPS55146721 A JP S55146721A
Authority
JP
Japan
Prior art keywords
thermoplastic resin
mold
component
particles
foaming thermoplastic
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
JP8876978A
Other languages
Japanese (ja)
Inventor
Hisayuki Mori
Eiichi Adachi
Yoji Noguchi
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.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui 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 Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP8876978A priority Critical patent/JPS55146721A/en
Publication of JPS55146721A publication Critical patent/JPS55146721A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a foam-molded article with a non-foamed resin as an outside layer in a short molding cycle by a method wherein a mixture of non-foaming thermoplastic resin particles and special foaming thermoplastic resin particles is heated and melted while being moved within a mold.
CONSTITUTION: A mixture of (A) particles of a non-foaming thermoplastic resin (e.g., polyethylene, polypropylene) and (B) particles of (a) a foaming thermoplastic resin having a melting point lower than that of the component (A) (e.g., polyethylene) blended with (b) a thermal cracking type foaming agent (e.g., p-toluenesulfonyl semicarbazide), is put in a mold, and then heated and melted while being moved within the mold by vibrating the mold, for example, through rotation. This treatment results in that the resins are fused together integrally and the component (b) is cracked and caused to foam. In this case, the ratio of the heat capacity of component (B) to that of component (A) is set to be equal to or greater than 50.
COPYRIGHT: (C)1980,JPO&Japio
JP8876978A 1978-07-19 1978-07-19 Production of molded article of thermoplastic resin Pending JPS55146721A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8876978A JPS55146721A (en) 1978-07-19 1978-07-19 Production of molded article of thermoplastic resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8876978A JPS55146721A (en) 1978-07-19 1978-07-19 Production of molded article of thermoplastic resin

Publications (1)

Publication Number Publication Date
JPS55146721A true JPS55146721A (en) 1980-11-15

Family

ID=13952056

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8876978A Pending JPS55146721A (en) 1978-07-19 1978-07-19 Production of molded article of thermoplastic resin

Country Status (1)

Country Link
JP (1) JPS55146721A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0666669A (en) * 1991-07-30 1994-03-11 Shizuoka Prefecture Method and equipment for inspecting canned product

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0666669A (en) * 1991-07-30 1994-03-11 Shizuoka Prefecture Method and equipment for inspecting canned product

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