C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 65/26 (2006.01) C08G 18/48 (2006.01) C08G 63/668 (2006.01) C08G 65/32 (2006.01) C08G 65/332 (2006.01) C08G 65/333 (2006.01)
Patent
CA 2143972
Relatively high functionality, modified polyether polyols containing hydroxyl groups and having a very low double bond content with a total functionality of (nx-my) are produced by reacting n mol of a starting polyether polyol having a functionality x, optionally in the presence of a catalyst, with m mol of a compound containing at least one group reactive with hydroxyl functions, which compound has a functionality y at a temperature of from about 40 to about 200°C. The compound containing at least one group which is reactive with hydroxyl groups is selected from (a) diisocyanates and polyisocyanates and (b) polycarboxylic acids and their anhydrides.
Gebauer Herbert
Gupta Pramod
Sandhagen Hans-Joachim
Aktiengesellschaft Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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