Process for Producing a Polyester Polyol, the Polyester Polyol Produced Thereby, and Use of the Polyester Polyol
AssigneeFar Eastern New Century Corporation
InventorsYu-Chun Wu, Chun-Chieh Chien, Chih-Yuan Tseng
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Abstract
A process for producing a polyester polyol includes the steps of: (a) preparing a diol composition which includes a C2-C9 short-chain diol component and a diol monomeric component of Formula (I) defined herein in a weight ratio of the C2-C9 short-chain diol component to the diol monomeric component of Formula (I) of larger than 0 and less than 1.6, (b) preparing a dicarbonyl composition which includes one selected from the group consisting of a dicarboxylic acid component, a dicarboxylic anhydride component, and a combination thereof, and (c) subjecting the diol composition and the dicarbonyl composition to a polycondensation reaction.
Claims10
A process for producing a polyester polyol, comprising the steps of:
- (a) preparing a diol composition which includes a C2-C9 short-chain diol component and a diol monomeric component of Formula (I) in a weight ratio of the C2-C9 short-chain diol component to the diol monomeric component of Formula (I) of larger than 0 and less than 1.6,
- wherein
- R1 is selected from the group consisting of hydrogen, phenyl, a C1-C6 straight alkyl group, and a C3-C6 branched alkyl group, and
- X is selected from the group consisting of
- wherein R2 is selected from the group consisting of hydrogen, phenyl, a C1-C6 straight alkyl group, and a C3-C6 branched alkyl group;
- (b) preparing a dicarbonyl composition which includes one selected from the group consisting of a dicarboxylic acid component, a dicarboxylic anhydride component, and a combination thereof;
- and
- (c) subjecting the diol composition and the dicarbonyl composition to a polycondensation reaction.
Dependencies are inferred from the claim text.