Polyester polyols containing secondary alcohol groups and...

Details Polyester polyols containing secondary alcohol groups and... Polyester polyols containing secondary alcohol groups and...

C - Chemistry, Metallurgy

08

G

C08G 63/06 (2006.01) C08G 18/00 (2006.01) C08G 63/664 (2006.01) C08G 63/685 (2006.01)

Patent

CA 2605987

Copolyesters containing secondary hydroxyl groups are useful polyols for manufacturing polyurethanes. These can be prepared by reacting a secondary hydroxyl-containing fatty acid or ester thereof with an initiator containing hydroxyl and/or primary or secondary amino groups. A copolyester of particular interest includes a poly(ethylene oxide) segment derived from a poly(ethylene oxide) initiator.

L'invention concerne des copolyesters renfermant des groupes hydroxyle secondaire, lesquels sont des polyols utiles dans la fabrication de polyuréthanes. Ceux-ci peuvent être préparés par mise à réagir d'un acide gras renfermant de l'hydroxyle secondaire ou un ester de celui-ci avec un initiateur renfermant de l'hydroxyle et/ou des groupes amino primaires ou secondaires. Un copolyester étudié comprend un segment de poly(oxyde d'éthylène) dérivé d'un initiateur de poly(oxyde d'éthylène).

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