Patent ID: 11949081
Assignee: SHENZHEN GOLDLINK TONGDA ELECTRONICS CO., LTD.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  H  Y | IPC C  H

Claim 1:
2. The thermally-conductive structural adhesive of claim 1, wherein the block polymerized telechelic carboxyl compound is selected from the group consisting of: telechelic carboxyl polybutadiene of formula (1), a product formed by reaction of isocyanate and the telechelic carboxyl polybutadiene according to formula (2) and removal of carbon dioxide, a product formed by reaction of epoxy resin and the telechelic carboxyl polybutadiene according to formula (3), a product formed by reaction of epoxy polyalkylsiloxane and the telechelic carboxyl polybutadiene according to formula (4) and a combination thereof;
wherein the formula (1) is expressed as:, wherein in the formula (1), 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 (2) is expressed as:, wherein in the formula (2), a number-average functionality of an isocyanate group in isocyanate OCN—R1—NCO 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 alkene is a group formed after a carbon-hydrogen bond in an organic compound is homolytically cleaved to remove two hydrogen atoms;
wherein the formula (3) is expressed as:, wherein in the formula (3), the epoxy compound meets a definition of formula (17), the formula (17) is expressed as:, wherein in the formula (17), a number-average functionality of an epoxy group is 2.0 or 3.0; and R7 is selected from the group consisting of: a group of formula (25), a group of formula (26), alkylene, unsubstituted phenylene, substituted phenylene, unsubstituted arylene, substituted arylene, unsubstituted heterocyclic alkene, substituted heterocyclic alkene and a combination thereof;
wherein the formula (25) is expressed as:, wherein in the formula (25), a number-average degree of polymerization q is 1-2; a number-average functionality of epoxy group is 2.0 or 3.0; and R9 is selected from the group consisting of: hydrogen, C1-C5 alkyl, unsubstituted phenyl, substituted phenyl, unsubstituted aryl, substituted aryl, unsubstituted heterocyclic group, substituted heterocyclic group and a combination thereof;
wherein the formula (26) is expressed as:, wherein in the formula (26), a number-average degree of polymerization q is 1-2; a number-average functionality of epoxy group is 2.0 or 3.0; and R9 is selected from the group consisting of: hydrogen, C1-C5 alkyl, unsubstituted phenyl, substituted phenyl, unsubstituted aryl, substituted aryl, unsubstituted heterocyclic group, substituted heterocyclic group and a combination thereof;
and
wherein the formula (4) is expressed as:, wherein in the formula (4), the epoxy compound meets a definition of formula (21), the formula (21) is expressed as:, wherein in the formula (21), m and n respectively represent a number-average polymerization degree of alkyl siloxane, m is greater than or equal to 0, and n is 5-50; a number-average functionality of epoxy group is 2.8-3.0; 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.