US 2015/0087789 A1 · PRODUCTION METHODS OF POLYESTER AND POLYURETHANE

Abstract

At the time of producing a polyester by using a dicarboxylic acid component and a biomass-resource-derived diol as raw materials, a polyester is efficiently produced with good color tone, as the raw material diol derived from biomass resources, a diol in which the content of a cyclic carbonyl compound having a carbon atom number of 5 or 6 is from 0.01 to 12 ppm by mass, is used, and by controlling the content of a cyclic carbonyl compound having a carbon atom number of 5 or 6 in the raw material diol to fall in a prescribed range, the color tone of the polyester is improved.

Claims22

Dependent claims

A method for producing a polyester, comprising:

performing reaction by using, as raw materials, a dicarboxylic acid component and a diol produced directly from a biomass-resource-derived substance by a fermentation process,
wherein a content of a cyclic carbonyl compound having a carbon atom number of 5 or 6 in the diol is 12 ppm by mass or less.

A method for producing a polyurethane, comprising:

a step of reacting a polyester polyol and an isocyanate compound,
wherein the polyester polyol and a diol used as a raw material for the production of the polyester polyol are a diol produced directly from a biomass-resource-derived substance by a fermentation process and a content of a cyclic carbonyl compound having a carbon atom number of 5 or 6 in the diol is 12 ppm by mass or less.

Dependencies are inferred from the claim text.

Facts

Application

14/560,830Filed 4 Dec 2014

Priority

JP 2012-1280665 Jun 2012

Published

26 Mar 2015

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

C08G 18/4213
Derived from aromatic dicarboxylic acids and dialcohols: from terephthalic acid and dialcohols
C08G 18/42
High-molecular-weight compounds: polycondensates having carboxylic or carbonic ester groups in the main chain
C08G 18/4238
Containing only aliphatic groups: derived from dicarboxylic acids and dialcohols
C08G 18/664
With compounds of group C08G18/32 or polyamines of C08G18/38: with compounds of group C08G18/3203

Production methods of polyester and polyurethane

Life of this patent

Production methods of polyester and polyurethane

Life of this patent

Abstract

Claims22