Apparatus for making a composite thermoplastic and silicone arti

Details Apparatus for making a composite thermoplastic and silicone arti Apparatus for making a composite thermoplastic and silicone arti

1996-09-06

1998-08-04

Nguyen, Khanh P.

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Female mold type means

249111, 2643282, 2643288, 425117, 425543, 425547, 425453, B29C 4504, B29C 4514, B29C 4573

Patent

active

057889953

ABSTRACT:
After a thermoplastic synthetic resin has been injection molded onto a transfer plate in a thermoplastic injection mold, the transfer plate is shifted into a silicone injection mold maintained at a high temperature and a silicone member is injection molded onto the thermoplastic member. The heat transfer to the thermoplastic body is minimized by, for example, providing insulating material between heated portions of the mold system and other portions thereof and/or by maintaining air gaps from which the silicone is excluded between the thermoplastic member and heated portions of the silicone injection mold.

REFERENCES:
patent: 4885121 (1989-12-01), Patel
patent: 5221538 (1993-06-01), Gasami et al.
patent: 5472655 (1995-12-01), Morita
Plast Verarbeiter, 46, Jahrgang, 9 Sep. 1995; "Kalte Verschlusse Fur, Heisses Silikon", H. Emmerichs et al. 3 pages.

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