Acid-capped polyester resins

Details Acid-capped polyester resins Acid-capped polyester resins

1982-01-28

1983-04-12

Phynes, Lucille M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5254445, 528274, 5282953, 528302, C08F28300, C08G 6376

Patent

active

043798950

ABSTRACT:
A polyester resin having a low intrinsic viscosity and suitable for use as a powdered resin is modified by being capped with organic acids. The resins are made from the reaction of diesters with diols with up to 30 mole percent of the diester being replaced with various diacids. The polyester is capped following the condensation reaction stage, but before any finishing stage. The polyester resins have an acid number of from 1 to 100 and allow greater flexibility in the type of acid functionality than previously available.

REFERENCES:
patent: 3383343 (1968-05-01), Mohajer et al.
patent: 3530082 (1970-09-01), O'Gorman et al.
patent: 3953403 (1976-04-01), Fujiyoshi et al.
patent: 4065439 (1977-12-01), Uno et al.
patent: 4124570 (1978-11-01), Scheibelhoffer et al.
patent: 4151220 (1979-04-01), Watanabe et al.
patent: 4155889 (1979-05-01), Fagerburg et al.
patent: 4195000 (1980-03-01), Charles et al.
patent: 4275189 (1981-06-01), Danick et al.

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