Polyols, use and method of preparation

Details Polyols, use and method of preparation Polyols, use and method of preparation

C - Chemistry, Metallurgy

07

C

C07C 275/24 (2006.01) C07H 15/08 (2006.01) C08G 18/28 (2006.01) C08G 18/38 (2006.01) C08G 18/40 (2006.01) C08G 18/48 (2006.01) C08G 18/50 (2006.01) C08G 63/66 (2006.01) C08G 65/26 (2006.01) C08G 65/333 (2006.01) C08K 5/21 (2006.01) C08K 5/405 (2006.01)

Patent

CA 2000892

IMPROVED POLYOLS, USE AND METHOD OF PREPARATION Abstract of the Disclosure Alkoxylated polyols are prepared by dispersing a nitrogen-containing material, such as urea, into a dispersing media comprised of a polyether or polyester polyol and a chemical moiety capable of being alkoxylated, such as a carbohydrate, i.e. whey permeate or sucrose, lactose, etc., and reacting the resultant dispersion with a C2 - C6 epoxide to form an alkoxylated polyol having a hydroxyl number below about 600. In certain embodiments, up to about 25% by weight of a urea material can be incorporated within the alkoxylated polyol for improved flame retardancy in the polyurethane/polyisocyanate/ polyisocyanura foams produced therefrom. INP\199\76342010-16 100589

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