US 11,873,423 B2
Moisture curable adhesive compositions
Wenwen Li, Pasadena, TX (US); and Ken Sutherland, Pasadena, TX (US)
Assigned to Kaneka Americas Holding, Inc., Pasadena, TX (US)
Appl. No. 17/434,612
Filed by Kaneka Americas Holding, Inc., Pasadena, TX (US)
PCT Filed Feb. 28, 2020, PCT No. PCT/US2020/020416
§ 371(c)(1), (2) Date Aug. 27, 2021,
PCT Pub. No. WO2020/176861, PCT Pub. Date Sep. 3, 2020.
Claims priority of provisional application 62/811,640, filed on Feb. 28, 2019.
Prior Publication US 2022/0145146 A1, May 12, 2022
Int. Cl. C08G 65/336 (2006.01); C09J 171/02 (2006.01); C09J 5/02 (2006.01); C09J 7/24 (2018.01); C09J 7/30 (2018.01)
CPC C09J 171/02 (2013.01) [C08G 65/336 (2013.01); C09J 5/02 (2013.01); C09J 7/243 (2018.01); C09J 7/245 (2018.01); C09J 7/30 (2018.01); C09J 2423/006 (2013.01); C09J 2423/166 (2013.01); C09J 2427/006 (2013.01); C09J 2471/00 (2013.01)] 20 Claims
 
1. A curable composition, comprising:
a polymer blend consisting of:
a component (A) having an organic polymer containing reactive silicon groups represented by the following general formula (1):
—Si(R13-a)Xa  (1)
wherein R1 represents an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, or an aralkyl group having 7 to 20 carbon atoms,
wherein X represents a hydrolyzable group, wherein each X is the same or different when two or more X are present,
a is an integer from 1 to 3,
when a is 1, each R1 may be the same or different, and
when a is 2 or 3, each X may be the same or different;
a component (B) having an organic polymer containing reactive silicon groups, wherein the organic polymer having a viscosity lower than 10,000 cP at 23° C., and wherein the reactive silicon groups represented by the following general formula (2):
—Si(R23-b)Xb  (2)
wherein R2 represents an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, or an aralkyl group having 7 to 20 carbon atoms,
wherein X represents a hydroxyl group or a hydrolyzable group, wherein each X is the same or different when two or more X are present
b is an integer from 1 to 3,
when b is 1, each R2 may be the same or different, and
when b is 2 or 3, each X may be the same or different; and
a component (C) having a polyolefin polymer.