Claims
- 1. A coating powder composition comprising,a binder resin system, between about 90 and 100 wt % of said binder resin system comprising silicone resin, and between about 0.05 and about 3 wt % of a silicone cure catalyst which is a zinc dialkylcarboxylate, wherein the dialkylcarboxylate moieties of said zinc dialkylcarboxylate are branched at the carbon alpha to the carboxylate group.
- 2. The composition according to claim 1 wherein said zinc dialkylcarboxylate is zinc neodecanoate.
- 3. A light emitting device having a coating formed from a coating powder of a composition comprisinga binder resin system, between about 90 and 100 wt % of said binder resin system comprising silicone resin, between about 10 and about 50 parts per hundred resin by weight of a filler selected from the group consisting of mica, calcium metasilicate, glass particles, and mixtures thereof, said filler having aspect ratios between about 8 and about 40, and up to about 3 wt % of a silicone cure catalyst.
- 4. The composition according to claim 3 wherein said coating, at a thickness of 1 mil, provides light transmittance of at least about 50%.
- 5. The composition according to claim 3 wherein said coating, at a thickness of 1 mil, provides light transmittance of at least about 80%.
- 6. A coating powder composition comprising,a binder resin system comprising silicone resin, between about 0.05 and about 3 wt % of a silicone cure catalyst which is a zinc dialkylcarboxylate, and between about 10 and about 50 parts per hundred resin by weight of a filler selected from the group consisting of glass particles, mixtures thereof with mica, and mixtures thereof with calcium metasilicate, said filler having an aspect ratio of between about 8 and about 40.
- 7. A coating powder composition as claimed in claim 6, wherein the dialkylcarboxylate moieties of said zinc dialkylcarboxylate are branched at the carbon alpha to the carboxylate group.
- 8. A device as claimed in claim 3, wherein in said composition said filler is present in an amount of between about 20 and about 40 parts per hundred resin by weight.
- 9. A device as claimed in claim 3, wherein in said composition said filler is wollastonite.
Parent Case Info
The present application is a Division of U.S. Application Ser. No. 09/289,536, filed on Apr. 9, 1999, now U.S. Pat. No. 6,248,824 B1.
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