Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1989-07-18
1991-12-17
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
264255, 264301, 264309, 264310, 264327, B28B 132, B29C 3912, B29C 4108
Patent
active
050733257
ABSTRACT:
A method for manufacturing decorative features in situ in a base layer of cast plastic material includes the steps of providing a heated mold tool with a selectively heated surface in the form of a desired decorative feature; depositing a covering of thermoplastic material in the recessed surface and heating the recessed surface to partially fuse the thermoplastic material on the recessed surface to form segments of plastic corresponding to the desired decorative feature; dumping excess thermoplastic material from the heated mold tool; thereafter spray coating the mold at the recessed surface to stabilize the location of the partially fused material in the recessed surface; reheating the mold tool to partially remelt the retained stabilized segments and thereafter depositing a base layer of thermoplastic material across the full surface of the mold and reheating the mold to bond the retained stabilized segments to the base layer and cooling and stripping the mold to form a finished plastic shell having a decorative feature formed in situ therein.
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Aftergut Karen
Davidson Textron Inc.
Evans John C.
Silbaugh Jan H.
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