Polyetherester resins from diol diesters

Details Polyetherester resins from diol diesters Polyetherester resins from diol diesters

C - Chemistry, Metallurgy

07

C

C07C 69/60 (2006.01) C07C 69/593 (2006.01) C08G 63/668 (2006.01) C08G 63/676 (2006.01) C08G 65/32 (2006.01) C08G 65/331 (2006.01) C08G 65/332 (2006.01)

Patent

CA 2250072

A process for making polyetherester resins is disclosed. The process comprises reacting a polyether with a diol diester in the presence of a catalyst that promotes random insertion of the diester into carbon-oxygen bonds of the polyether to produce the polyetherester resin. The process of the invention offers many advantages, including higher resin yields, reduced by-product generation, and the ability to make resins with low color and low acid numbers. The resins are useful for making polyetherester thermosets.

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