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
1993-04-22
2000-10-31
Medley, Margaret
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
264226, 264313, 264334, 264338, 44535, 425 2, 425176, 425440, 425DIG44, B29C 3340
Patent
active
061397865
ABSTRACT:
A method of forming a flexible mold (12) and resulting article is provided where a model (10) having the contour of the article to be molded is provided. The model (10) is partially encapsulated within a flexible and substantially liquid impervious layer (14). The combined model (10) and liquid impervious layer (14) is immersed into a curable liquid composition and handle members (36, 38) are inserted into the curable liquid composition. The curable liquid composition (34) is cured having the handles (36, 38) embedded within the composition (34) and subsequent to curing, forms a solid flexible mold encompassing structure (44). Handle members (36, 38) are actuated to release the model (10) from the layer (14) to form the flexible mold (12) for the article to be produced.
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