Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – Agglomeration or accretion
Patent
1989-07-25
1990-05-29
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
Carbonizing to form article
Agglomeration or accretion
264 78, 264129, 264137, 264220, 264225, 264226, 264227, 264236, 264255, 264257, 264294, 264308, 522 90, 522 97, 522102, 522106, 522158, 522176, 522180, 522181, 522182, 524296, 524847, B29C 3508, B29C 4122
Patent
active
049294032
ABSTRACT:
A process for rapidly forming a flexible mold for finely detailed objects from a radiatively curable molding composition includes coating at least a portion of the surface of a three-dimensional object with a fluid molding composition. The coating is cured by exposing the fluid coating to radiative energy to form an elastic, flexible layer of cured molding composition on the object. The coating and curing steps can be repeated to build up the flexible mold until a predetermined minimum has been attained. The cured molding composition is removed from the object, and is suitable for immediate use as a mold to cast duplicate reproductions of the object.
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Thurlow Jeffery
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