Process for manufacturing thermoformed article having...

Details Process for manufacturing thermoformed article having... Process for manufacturing thermoformed article having...

2005-01-11

2005-01-11

Tentoni, Leo B. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

C264S151000, C264S210200, C264S263000, C264S266000, C264S284000, C264S293000, C264S510000, C264S544000, C264S545000

Reexamination Certificate

active

06841105

ABSTRACT:
A method of forming thermoplastic panels is disclosed which includes the steps of forming the thermoplastic panels by extrusion or a similar process and simultaneously or subsequently texturing or graining at least one face thereof, and utilizing such pre-textured or pre-grained panels to form a finished panel or article by disposing such panel in a thermoforming mold having at least one grained or textured mold surface against which the pre-textured or pre-grained surface of the panel is disposed and thermoforming such panel. The process provides a textured or grained surface having greatly improved uniformity and enhanced appearance.

REFERENCES:
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patent: 4676938 (1987-06-01), Karklin et al.
patent: 4693507 (1987-09-01), Dresen et al.
patent: 4769106 (1988-09-01), Busching
patent: 5167969 (1992-12-01), DeMaio, Jr. et al.
patent: 5492663 (1996-02-01), Greenwald et al.
patent: 5648031 (1997-07-01), Sturtevant et al.
patent: 5658523 (1997-08-01), Shuert
patent: 6200122 (2001-03-01), Chun et al.
patent: 6231938 (2001-05-01), Gockel et al.
patent: 6294114 (2001-09-01), Muirhead

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