Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Composite article making
Patent
1997-11-20
1999-06-15
Kuhns, Allan R.
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Composite article making
264 466, 264129, 264220, 264255, 264313, B29C 4406, B29C 4412
Patent
active
059119276
ABSTRACT:
A method of producing artificial rock formations such as rocks and waterfalls by (a) forming a flexible mold of latex, silicone or urethane from a master model; (b) forming a sectional fiberglass cradle to support the flexible mold; and (c) coating the flexible mold with layers of lacquer, non-foaming polyurethanepolyisocyanate, and foaming polyurethane-polyisocyanate; and (d) demolding and coating the final rock formation product with paint or a stain.
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Kuhns Allan R.
Litman Richard C.
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