Method of making plastic molds

Details Method of making plastic molds Method of making plastic molds

1996-07-29

1999-09-14

Vargot, Mathieu D.

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

264 25, 425808, B29D 1100

Patent

active

059519347

ABSTRACT:
An improved method for forming plastic molds for casting articles having an optical surface such as contact lenses employs a plastic tool having an optically smooth surface.

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