Method for making thermally-conductive plastic articles having light reflecting surfaces
First Claim
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1. A method of making a net-shape molded, thermally-conductive reflector article having a light-reflecting surface, comprising the steps of:
- a) providing a molten polymer composition comprising;
i) about 20% to about 80% by weight of a base polymer matrix; and
ii) about 20% to about 80% by weight of a thermally-conductive carbon material;
b) injecting the molten composition into a mold to form a net-shape molded, thermally-conductive reflector article; and
c) removing the reflector article from the mold.
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Abstract
A method for making molded reflector articles having light-reflecting surfaces is provided. The method involves injection-molding a thermally-conductive, polymer composition comprising: a) about 20% to about 80% by weight of a base polymer matrix such as polycarbonate; and b) about 20% to about 80% by weight of a thermally-conductive carbon material such as graphite. The method can be used to make reflector articles such as housings for automotive tail lamps, head lamps, and other lighting fixtures.
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11 Claims
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1. A method of making a net-shape molded, thermally-conductive reflector article having a light-reflecting surface, comprising the steps of:
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a) providing a molten polymer composition comprising;
i) about 20% to about 80% by weight of a base polymer matrix; and
ii) about 20% to about 80% by weight of a thermally-conductive carbon material;
b) injecting the molten composition into a mold to form a net-shape molded, thermally-conductive reflector article; and
c) removing the reflector article from the mold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification