US 9,803,125 B2 · Thermal interface material and method of making and using the same

Abstract

A thermal interface material comprises a polymeric elastomer material, a thermally conductive filler, and a coupling agent, along with other optional components. In one exemplary heat transfer material, a coupling agent having the formula: where Y is either a cyclic structure or Y is represented by Formula II: where: a=1 or 2 b=2 or 3 R1 contains at least one of a neoalkoxy group, an ether group, or a C2-C30 straight or branched alkyl, alkenyl, alkynyl, aralkyl, aryl, or alkaryl group R′2 and R″2 are independently selected from Hydrogen, a neoalkoxy group, an ether group, and a C2-C30 straight or branched alkyl, alkenyl, alkynyl, aralkyl, aryl, or alkaryl group X=Group four transition metal; and where a=1, R3 contains at least one of a neoalkoxy group, an ether group, or a C2-C30 straight or branched alkyl, alkenyl, alkynyl, aralkyl, aryl, or alkaryl group; or where a=2, the two R3 groups independently contain at least one of a neoalkoxy group, an ether group, or a C2-C30 straight or branched alkyl, alkenyl, alkynyl, aralkyl, aryl, or alkaryl groups or the two R3 groups together form an alkyldiolato group and, if Y is a cyclic structure, X is a member of the cyclic structure and the cyclic structure also contains a pyrophosphate group such as Formula II shown above.

Claims23

Dependent claims

A heat transfer material comprising:

a polymeric elastomer material selected from a silicone-containing rubber and a hydrocarbon rubber;
a wax;
a thermally conductive filler;
and
a coupling agent selected from the group consisting of:
titanium IV 2,2 (bis 2-propenolatomethyl)butanolato, tris(dioctyl) pyrophosphato-O;
zirconium IV 2,2 (bis 2-propenolatomethyl)butanolato, tris(diisooctyl) pyrophosphato-O;
titanium IV bis(dioctyl)pyrophosphato-O, oxoethylenediolato, adduct, bis(dioctyl) (hydrogen)phosphite-O;
and zirconium IV 2,2-bis (2-propenolatomethyl) butanolato, cyclo di[2,2-(bis 2-propenolatomethyl) butanolato], pyrophosphato-O,O.

6 more elements

A heat transfer material comprising:

a polymeric elastomer material in the form of a silicone-containing rubber, wherein the polymeric elastomer material comprises a silicone-containing rubber selected from the group consisting of a silicone rubber, a siloxane rubber, and a siloxane copolymer;
a wax;
a thermally conductive filler;
and
a coupling agent represented by formula I:
wherein Y is a cyclic structure or Y is represented by Formula II:
wherein:
a=1 or 2;
b=2 or 3;
R1 contains at least one of a neoalkoxy group, an ether group, and a C2-C30 straight or branched alkyl, alkenyl, alkynyl, aralkyl, aryl, or alkaryl group;
R′2 and R″2 are independently selected from Hydrogen, a neoalkoxy group, an ether group, and a C2-C30 straight or branched alkyl, alkenyl, alkynyl, aralkyl, aryl, or alkaryl group;
X=group four transition metal;
and
wherein when a=1, R3 contains at least one of a neoalkoxy group, an ether group, or a C2-C30 straight or branched alkyl, alkenyl, alkynyl, aralkyl, aryl, or alkaryl group;
wherein when a=2, the two R3 groups independently contain at least one of a neoalkoxy group, an ether group, or a C2-C30 straight or branched alkyl, alkenyl, alkynyl, aralkyl, aryl, or alkaryl groups or the two R3 groups together form an alkyldiolato group;
and,
when Y is a cyclic structure, X is a member of the cyclic structure and the cyclic structure also contains a pyrophosphate group.

14 more elements

Dependencies are inferred from the claim text.

Thermal interface material and method of making and using the same

Life of this patent

Thermal interface material and method of making and using the same

Life of this patent

Abstract

Claims23