04089917 is referenced by 19 patents and cites 7 patents.

Moldings of cross-linked thermoplastic polymers are obtained by the method comprising: melting a cross-linkable thermoplastic polymer admixed with a cross-linking agent by applying a temperature and a pressure insufficient to cause a cross-linking reaction; passing the thus-melted molding material through a first orifice thereby to raise its temperature by a shearing action to an extent that will start a cross-linking reaction; passing the thus-treated melted molding material through a second orifice thereby further to raise its temperature to an extent that will effect a rapid cross-linking reaction of the molding material; and then introducing the thus-treated molding material into a pre-forming die to advance the cross-linking reaction of the molding material and then cooling the molding material by means of a liquid under an elevated pressure.

Title
Process of cross-linking and extrusion molding thermoplastic polymers
Application Number
470656
Publication Number
4089917
Application Date
October 22, 1975
Publication Date
May 16, 1978
Inventor
Masahiko Ishida
Yokohama
JA
Noriyuki Kikuchi
Kawaguchi
JA
Susumu Nakajyo
Tokyo
JA
Mamoru Takiura
Kawasaki
JA
Agent
Blanchard Flynn Thiel Boutell & Tanis
Assignee
Ikegai Tekko Kabushiki Kaisha
JA
IPC
B29C 25/00
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