EP 0034582 A4 19810827 - METHOD FOR INJECTION MOULDING FOAMED RESIN PARTS WITH A SMOOTH FINISH.
Title (en)
METHOD FOR INJECTION MOULDING FOAMED RESIN PARTS WITH A SMOOTH FINISH.
Title (de)
VERFAHREN ZUM SPRITZGIESSEN VON TEILEN AUS GESCHÄUMTEM HARZ MIT EINER GLATTEN OBERFLÄCHE.
Title (fr)
PROCEDE DE MOULAGE PAR INJECTION DE PIECES EN RESINE MOUSSEE AVEC UNE SURFACE DE FINITION LISSE.
Publication
Application
Priority
US 7900650 W 19790824
Abstract (en)
[origin: WO8100535A1] This invention substantially improves the surface finish on resin filled foamed molded plastic products manufactured by injection molding by preheating the skin surface (70, 72) of that of the mold in contact with the part to be molded prior to the injection cycle of the machine and then subsequently chilling the mold via internal tube connections (124, 126) to shorten the time needed in the manufacturing cycle for solidifying the part sufficiently for release from the mold.
IPC 1-7
IPC 8 full level
B29C 44/42 (2006.01); B29C 44/60 (2006.01); B29C 45/17 (2006.01)
CPC (source: EP)
B29C 44/428 (2013.01); B29C 44/60 (2013.01); B29C 45/1703 (2013.01); B29C 2045/7375 (2013.01)
Citation (search report)
- FR 2223167 A1 19741025 - PONT A MOUSSON [FR]
- DE 1554851 A1 19700122 - PHOENIX GUMMIWERKE AG
- DE 1090426 B 19601006 - GRUNDIG MAX
- US 3960996 A 19760601 - BALEVSKI ANGUEL TONCHEV, et al
- US 3897201 A 19750729 - BELOT PIERRE, et al
- FR 2256021 A1 19750725 - ASAHI DOW LTD [JP]
- US 4129635 A 19781212 - YASUIKE AKIO, et al
- GB 1226135 A 19710324
Designated contracting state (EPC)
CH DE FR GB NL
DOCDB simple family (publication)
WO 8100535 A1 19810305; EP 0034582 A1 19810902; EP 0034582 A4 19810827
DOCDB simple family (application)
US 7900650 W 19790824; EP 79901510 A 19810309