Thermally conductive plastic compositions, extrusion apparatus and methods for making thermally conductive plastics
AssigneeMomentive Performance Materials Inc.
InventorsChandrashekar Raman, Bei Xiang, Anand Murugaiah
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Abstract
A thermally conductive filler composition and a resin composition comprising such filler compositions. The filler composition comprises a blend of a boron nitride, a metal oxide, and a silane. The filler composition can further comprise other filler components including, for example, glass fiber or glass flake. The filler compositions can be added to a resin composition to provide a thermally conductive resin such as, for example, a thermally conductive plastic.
Claims58
A filler composition comprising a blend of:
- a boron nitride;
- a metal oxide;
- and
- a silane, wherein the silane is chosen from a thiocarboxylate silane, a blocked mercapto silane, or a combination thereof.
A thermally conductive composition comprising:
- a resin material;
- and
- a thermally conductive filler composition dispersed in the polymer material, wherein the thermally conductive filler composition comprises a blend of a boron nitride, a metal oxide, and a silane, wherein the silane is chosen from a thiocarboxylate silane, a blocked mercapto silane, or a combination thereof, and the thermally conductive composition has an in-plane thermal conductivity of about 2 W/mK or greater, a through-plane thermal conductivity of about 0.9 W/mK or greater, or both.
A filler composition comprising a blend of:
- from about 5 weight percent to about 98 weight percent of a boron nitride;
- from about 5 weight percent to about 80 weight percent of a metal oxide;
- from about 0.1 weight percent to about 60 weight percent of glass fiber, glass flake, or a combination thereof;
- and from about 0.1 weight percent to about 6 weight percent or a silane, wherein the silane is chosen from a thiocarboxylate silane, a blocked mercapto silane, or a combination thereof.
A filler composition comprising a blend of a boron nitride and a silane, wherein the silane is chosen from a thiocarboxylate silane, a blocked mercapto silane, or a combination thereof.
A method of making a blended filler composition comprising blending boron nitride with a silane, wherein the silane is chosen from a thiocarboxylate silane, a blocked mercapto silane, or a combination thereof, and heat treating the blend.
A thermally conductive composition comprising:
- a polycarbonate resin material;
- and
- a thermally conductive filler composition dispersed in the polymer material, wherein the thermally conductive filler composition comprises a blend of a boron nitride and a silane, wherein the silane is chosen from a thiocarboxylate silane, a blocked mercapto silane, methacryloxy silane or a combination thereof, and the thermally conductive composition has an in-plane thermal conductivity of about 2 W/mK or greater, a through-plane thermal conductivity of about 0.9 W/mK or greater, or both.
A thermally conductive composition comprising:
- a polyamide resin material;
- and
- a thermally conductive filler composition dispersed in the polymer material, wherein the thermally conductive filler composition comprises a blend of a boron nitride and a silane, wherein the silane is chosen from a thiocarboxylate silane, a blocked mercapto silane, halosilane or a combination thereof, and the thermally conductive composition has an in-plane thermal conductivity of about 2 W/mK or greater, a through-plane thermal conductivity of about 0.9 W/mK or greater, or both.
Dependencies are inferred from the claim text.