Processes for producing polyurethane foams containing alkoxysilane functional polymers and uses therefor

US8846775B2 · kind B2 · utility

Assignee

• Bayer MaterialScience AG · DE

Inventors

• Michael Mager · Leverkusen, DE
• Michael Ludewig
• Mathias Matner · Neuss, DE

Key dates

• Filing date: Jul 10, 2008
• Grant date: Sep 30, 2014
• Expiry date: Oct 1, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L83/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Processes comprising: (a) providing a composition comprising at least one silane-terminated polyurethane preploymer prepared by a process comprising: reacting (A) at least one polyether having a number average molecular weight (Mn) of 2000 to 8000 g/mol, and comprising 10 to 30 wt % ethylene oxide units based on all alkylene oxide units in the polyether; with (B) at least one isocyanate and alkoxysilane group-containing compound of the formula (I):wherein each of X, Y, and Z independently represents a C1-C8 alkyl or a C1-C8 alkoxy residue, with the proviso that at least one of X, Y, and Z represents a C1-C8 alkoxy group; and wherein R is an at least bifunctional, organic residue; (b) foaming the composition, and (c) curing the foamed composition in the presence of water; and uses of polyurethane foams prepared thereby.