Patent ID: 11859043
Assignee: MOMENTIVE PERFORMANCE MATERIALS INC.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A silylated polyurethane composition comprising:
the reaction product of a polyol, an isocyanatosilane silylating agent, and an yttrium-containing catalyst, wherein the reaction product of the polyol comprises a polymer of Formula (I):, where P is a polymer; X is a urethane, urea or thiourea; R2 is a divalent alkylene group of up to 12 carbon atoms, optionally containing one or more heteroatoms, each R3 is the same or different alkyl or aryl group of up to 8 carbon atoms, each R4 is the same or different alkyl group of up to 6 carbon atoms, w is greater than or equal to 1, and a is 0, 1 or 2; and, an yttrium-containing catalyst
wherein the polymer of formula (I) has increased storage stability compared to the same polymer prepared without the yttrium-containing catalyst.