Process for compression molding of thermoplastic resin and moldi

Details Process for compression molding of thermoplastic resin and moldi Process for compression molding of thermoplastic resin and moldi

1984-12-14

1987-05-26

Anderson, Philip

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

156323, 156344, 264511, 264553, 2643902, 264291, 264300, 264338, 2642974, 428910, 524452, 524455, 524519, 524525, C08J 510, B29C 4320, B29C 5512, B29C 5518

Patent

active

046687297

ABSTRACT:
The present invention concerns a process for a thin sheet molding of a thermoplastic resin easily and economically and also the thin oriented sheet molding prepared by such a process. Its specific feature resides in the steps of lubricating the inner surface of die, laying over one another thermoplastic resin blanks while being not adhered to each other in a die, compressing the layered structure at a temperature higher than the glass transition temperature of the thermoplastic resin blanks and separating the oriented molded products from each other.

REFERENCES:
patent: 2207815 (1940-07-01), Ogilby
patent: 4028461 (1977-06-01), Ochsner
patent: 4235834 (1980-11-01), Vetter et al.
patent: 4304751 (1981-12-01), Li et al.

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