Polyester polyols liquid at room temperature and their...

Details Polyester polyols liquid at room temperature and their... Polyester polyols liquid at room temperature and their...

C - Chemistry, Metallurgy

07

C

402/150, 403/43,

C07C 69/34 (2006.01) C07C 69/80 (2006.01) C08G 18/40 (2006.01) C08G 18/42 (2006.01) C08G 18/46 (2006.01) C08G 63/16 (2006.01)

Patent

CA 1280439

POLYESTER POLYOLS LIQUID AT ROOM TEMPERATURE AND THEIR PREPARATION AND USE IN PREPARING PLASTICS BY POLYISOCYANATE ADDITION POLYMERIZATION Abstract of Disclosure Disclosed are polyester polyols liquid at 25°C, having an average functionality of from 2 to 3, a hydroxyl number of from 25 to 400, an acid number smaller than 10 and a viscosity at 25°C of from 200 to 10,000 mPas, which contain in bonded form units having at least one of the structures Image which are prepared by the polycondensation or transesterifi- cation of 2-methyl-1,5-pentanediol, 2-ethyl-1,4-butanediol, 2-methyl-glutaric acid and/or 2-ethyl succinic acid or their derivatives, optionally while using other organic polycar- boxylic acids and multivalent aliphatic alcohols and are useful for preparing non-cellular or cellular polyurethane plastics or polyurethane - polyurea plastics.

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