Patent ID: 11949081
Assignee: DONGGUAN GOLDLINK TONGDA THERMAL CONDUCTIVE MATERIALS MFG CO., LTD.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  H  Y | IPC C  H

Claim 3:
4. The thermally-conductive structural adhesive of claim 1, wherein the block polymerized telechelic isocyanate compound is selected from the group consisting of: an isocyanate of formula (13), a product formed by reaction of the isocyanate and a telechelic carboxyl polybutadiene according to formula (14) and removal of carbon dioxide, a product formed by reaction of the isocyanate and telechelic amino polypropylene oxide according to formula (15), a product formed by reaction of the isocyanate and aminopolyalkylsiloxane according to formula (16) and a combination thereof;
wherein the formula (13) is expressed as:

OCN—R1—NCO  (13);

wherein in the formula (13), a number-average functionality of an isocyanate group is 2.0; and R1 is selected from the group consisting of alkylene, unsubstituted phenylene, substituted phenylene, unsubstituted arylene, substituted arylene, unsubstituted heterocyclic alkene, substituted heterocyclic alkene and a combination thereof;
wherein the formula (14) is expressed as:, wherein in formula (14), the telechelic carboxyl polybutadiene component meets a definition of formula (1) expressed as:, wherein x=1, and y is a mole ratio relative to x, and selected from 0-1.0; z represents number-average degree of polymerization, and is selected from 9-27, and a number-average functionality of a carboxyl group is 2.1-2.2; and R8 is a vinyl or a cyano group;
wherein the formula (15) is expressed as:, wherein in formula (15), the telechelic amino polypropylene oxide component meets a definition of formula (5) expressed as:, wherein k represents a number-average degree of polymerization, and is selected from 25-50; and a number-average functionality of an amino group is 2.0-2.3; and
wherein the formula (16) is expressed as:, wherein in formula (16), the aminopolyalkylsiloxane component meets a definition of formula (6) expressed as:, wherein number-average degree of polymerization m is 0-1, and number-average degree of polymerization n is 8-22; a number-average functionality of an amino group is 2.9-3.3; R2 is a C2-C5 alkylene; and R3, R4, R5 and R6 are independently selected from the group consisting of alkyl, unsubstituted phenyl, substituted phenyl, unsubstituted aryl, substituted aryl, unsubstituted heterocyclic group, substituted heterocyclic group and a combination thereof.