Method for contouring the surface of thermoplastic synthetic res

Details Method for contouring the surface of thermoplastic synthetic res Method for contouring the surface of thermoplastic synthetic res

1976-10-01

1977-07-26

Hoag, Willard E.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Deforming the surface only

264299, 264322, B29C 1700, B29F 500

Patent

active

040383601

ABSTRACT:
A method for contouring the surface of a thermoplastic synthetic resin sheet, which comprises contacting said sheet, warmed to the softening temperature of the synthetic resin, with a rigid structure having perforations therein and having a sheet of rubber or of a rubber-like synthetic resin foam in contact therewith on that side thereof which is opposite to said thermoplastic synthetic resin sheet, under pressure such that said synthetic resin sheet, in a thermoplastic condition, and said sheet of rubber or of synthetic resin foam penetrate into said perforations and come into substantially full surface contact with each other in said perforations.

REFERENCES:
patent: 122569 (1872-01-01), Chute
patent: 1813235 (1931-07-01), Dunbar
patent: 2139054 (1938-12-01), Wilson
patent: 3428727 (1969-02-01), Higgins

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