	US 12,134,716 B2
	Adhesive composition
Sergio Grunder, Freienbach (CH); Stefan Schmatloch, Freienbach (CH); and Joel Kunz, Horgen (CH)
Assigned to DDP SPECIALTY ELECTRONIC MATERIALS US, LLC, Wilmington, DE (US)
Appl. No. 16/975,490
Filed by DDP SPECIALTY ELECTRONIC MATERIALS US, LLC, Wilmington, DE (US)
PCT Filed Feb. 20, 2019, PCT No. PCT/US2019/018722 § 371(c)(1), (2) Date Aug. 25, 2020, PCT Pub. No. WO2019/173049, PCT Pub. Date Sep. 12, 2019.
Claims priority of provisional application 62/639,670, filed on Mar. 7, 2018.
Prior Publication US 2021/0032516 A1, Feb. 4, 2021
Int. Cl. C08G 18/16 (2006.01); C08G 18/00 (2006.01); C08G 18/10 (2006.01); C08G 18/18 (2006.01); C08G 18/24 (2006.01); C08G 18/32 (2006.01); C08G 18/66 (2006.01); C08G 18/76 (2006.01); C08G 18/79 (2006.01); C08K 3/04 (2006.01); C08K 3/34 (2006.01); C09J 175/08 (2006.01)

CPC C09J 175/08 (2013.01) [C08G 18/00 (2013.01); C08G 18/165 (2013.01); C08G 18/1875 (2013.01); C08G 18/246 (2013.01); C08G 18/3206 (2013.01); C08G 18/6677 (2013.01); C08G 18/7664 (2013.01); C08G 18/798 (2013.01); C08K 3/04 (2013.01); C08K 3/346 (2013.01)]

12 Claims

1. An adhesive composition comprising:

(a) at least one isocyanate component, and

(b) at least one polyol component, wherein the polyol component comprises (bi) at least one first polyol compound, (bii) at least one second polyol compound having a functionality of greater than about 2 and an equivalent weight of less than about 200; and (biii) at least one chain extender, wherein the chain extender comprises a compound having about 2 hydroxyl groups and an equivalent weight of less than about 200;

wherein the adhesive composition further comprising at least one catalyst being a combination of (a) at least one tin-containing organic compound, and (B) at least one amine compound; and

wherein the at least one second polyol compound is glycerin being present at about 0.1 to 10 wt. % based on the total weight of the components in the composition.