Plastic and nonmetallic article shaping or treating: processes – With printing or coating of workpiece – Anti-stick or adhesion preventing coating
Patent
1986-11-14
1989-01-03
Lowe, James
Plastic and nonmetallic article shaping or treating: processes
With printing or coating of workpiece
Anti-stick or adhesion preventing coating
264 79, 264134, 264257, 264313, 264334, 264338, 427154, B29C 4310, B29C 4318
Patent
active
047956003
ABSTRACT:
Barriers used for separating silicone pressurizing medium from articles during curing, thereby protecting the article from silicone contamination. A composite precursor is substantially encapsulated by a barrier coating that is capable of substantially separating the composite precursor from silicone polymers at elevated temperatures during curing. The barrier coating is also capable of being chemically removed from the composite precursor subsequent to its cure without substantially damaging the composite. Composites are molded by protecting a composite precursor from a silicone pressurizing medium during curing utilizing a barrier coating. The method comprises encapsulating a composite precursor with a coating that is substantially capable of separating the composite precursor from silicone polymers at elevated temperatures. The coating is also capable of being chemically removed from the composite without damaging the composite. The precursor is cured by causing a silicone polymer to apply pressure to the precursor and exposing the precursor to elevated temperatures. Then the coating is chemically removed from the composite.
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Durkin II Jeremiah F.
Lowe James
Olson A. Dean
United Technologies Corporation
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