Method of making thermally-conductive casings for optical heads in optical disc players
AssigneeCool Options, Inc.
InventorsJames Miller, Kevin McCullough, E. Mikhail Sagal
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Abstract
A method of making a thermally-conductive casing for an optical head in a disc player is provided. The method involves molding a polymer composition comprising: i) about 20% to about 80% by weight of a polymer matrix such as polyphenylene sulfide, and ii) about 20% to about 80% by weight of a thermally-conductive material such as carbon graphite into a casing for the optical head. A reinforcing material, such as glass, and other additives, such as flame retardants, can be incorporated into the polymer composition.
Claims5
A method of making a net-shape molded, thermally-conductive casing for an optical head device in disc players, comprising the steps of:
- a) providing a molten polymer composition comprising i) about 20% to about 80% by weight of polyphenylene sulfide, and ii) about 40% by weight of thermally-conductive, carbon graphite;
- b) injecting the molten composition into a mold;
- c) removing the composition from the mold to form a net-shape molded, thermally-conductive casing for an optical head device, said casing having a thermal conductivity of greater than 3 W/m° K.
Dependencies are inferred from the claim text.