Adhesive composition, adhesive comprising the same, and method of fabricating adhesive comprising the same
OwnerYong-Qi Cai, Yuan-Shun Tsai +1inventors
InventorsYong-Qi Cai, Yuan-Shun Tsai, Wei-Ting Lin
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Abstract
A thermally conductive, electrically insulating, high temperature resistant and flame retardant adhesive sheet includes a substrate, an adhesive layer disposed on the substrate, metal hydroxide and metal oxide. The adhesive layer is formed from an adhesive composition, which is made of from 10 to 90 wt. % of a solvent-free and pressure sensitive siloxane resin. The siloxane resin includes hydrophilic functional groups, and the weight percentage of the hydrophilic functional groups in the siloxane resin is in the range of 1 to 10 wt. %
Claims20
A thermally conductive, electrically insulating, high temperature resistant and flame retardant adhesive sheet, comprising:
- a substrate;
- and
- an adhesive layer disposed on the substrate, formed from an adhesive composition, wherein the adhesive composition comprises from 10 to 90 wt. % of a solvent-free and pressure sensitive siloxane resin which is temperature resistant at a temperature of 140° C. to 160° without substantially cracking at 150° C., and the solvent-free and pressure sensitive siloxane resin comprises at least a hydrophilic functional group, wherein the weight percentage of the hydrophilic functional group in the solvent-free and pressure sensitive siloxane resin is in the range of 1 to 10 wt. %;
- from 0.01 to 75 wt. % of a metal hydroxide;
- from 0.01 to 80 wt. % of a metal oxide;
- and
- from 0.01% to 30% wt. % of a nitride.
A method of fabricating a thermally conductive, electrically insulating, high temperature resistant and flame retardant adhesive sheet, comprising:
- providing a substrate;
- coating at least a layer of vinyl-functional coupling agent on the surface of the substrate;
- preparing a mixture comprising a solvent-free siloxane resin, a metal hydroxide and a metal oxide, wherein the solvent-free siloxane resin comprises at least a hydrophilic functional group, and the weight percentage of the hydrophilic functional group in the solvent-free siloxane is in the range of 1 to 10 wt. %;
- coating a layer of the mixture on the substrate after the step of coating the layer of the vinyl-functional coupling agent;
- and
- heating the substrate at 80° C. for 30 minutes after the step of coating the layer of the mixture.
Dependencies are inferred from the claim text.