Plastic and nonmetallic article shaping or treating: processes – With step of making mold or mold shaping – per se – Utilizing surface to be reproduced as an impression pattern
Patent
1995-11-22
1998-07-28
Derrington, James
Plastic and nonmetallic article shaping or treating: processes
With step of making mold or mold shaping, per se
Utilizing surface to be reproduced as an impression pattern
264220, 264225, 264255, B29C 3360
Patent
active
057859140
ABSTRACT:
An improved metal working tool or die having an outer surface formed from synthetic resin material that is filled with a hardener. The outer surface is formed of a material that consists of a synthetic resin mixed with tabular alumina and a surface treating agent such as gamma-Methacryloxypropyltrimethoxysilane. The tool or die is formed over a pattern by applying the outer hard surface layer to the pattern and then a second or intermediate layer of synthetic resin that is filled with calcium silicate. A third layer of material that includes a reinforcing fiber such as fiber glass is applied over the intermediate layer.
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Kress Russel L.
Lewis H. Kent
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