US 10,093,771 B2 · Polyester resin, method for manufacturing polyester resin, and coating composition containing polyester resin

Abstract

The present invention relates to a polyester resin with excellent solubility in generic solvents, especially with excellent solubility at a temperature of 0° C. or lower. According to the present invention, by using the polyester resin with excellent solubility in generic solvents, solubility at a lower temperature, especially the solubility at a temperature of 0° C. or lower, is enhanced, making it easier to prepare paints, coatings and the like. The polyester resin related to the present invention contains 0.05 to 0.5 mol of an isosorbide-derived structural unit and 0.015 to 0.4 mol of a trihydric or higher alcohol-derived structural unit relative to 1 mol of a polycarboxylic acid-derived structural unit.

Claims10

Dependent claims

A polyester resin, comprising:

a polycarboxylic acid-derived structural unit;
a trihydric or higher alcohol-derived structural unit;
an isosorbide-derived structural unit;
and
a structural unit derived from a dihydric alcohol that is other than isosorbide and having an alicyclic skeleton,
wherein 0.05 to 0.5 mol of the isosorbide-derived structural unit and 0.015 to 0.4 mol of the trihydric or higher alcohol-derived structural unit are present relative to 1 mol of the polycarboxylic acid-derived structural unit, and
where the structural unit derived from the dihydric alcohol having an alicyclic skeleton is present at 0.001 to 0.15 mol relative to 1 mol of the polycarboxylic acid-derived structural unit.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/305,121Filed 23 Apr 2015

Priority

JP 2014-09098425 Apr 2014

Published

US 2017/0037182 A19 Feb 2017

Granted

9 Oct 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification14 codes

C08G 63/183
Acids containing aromatic rings: terephthalic acids
C08G 63/672
Derived from polycarboxylic acids and polyhydroxy compounds: dicarboxylic acids and dihydroxy compounds
C08G 63/199
The acids or hydroxy compounds containing carbocyclic rings: acids or hydroxy compounds containing cycloaliphatic rings
C08G 63/20
Dicarboxylic acids and dihydroxy compounds: polyesters having been prepared in the presence of compounds having one reactive group or more than…

Polyester resin, method for manufacturing polyester resin, and coating composition containing polyester resin

Life of this patent

Polyester resin, method for manufacturing polyester resin, and coating composition containing polyester resin

Life of this patent

Abstract

Claims10