Hydroxybenzoic acid-epoxy adduct capping agents for polyester re

Details Hydroxybenzoic acid-epoxy adduct capping agents for polyester re Hydroxybenzoic acid-epoxy adduct capping agents for polyester re

1981-03-05

1982-05-25

Nielsen, Earl A.

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

Synthetic resins

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

525174, 525176, 528 53, 528 73, 528 83, 528100, 528195, C08G 6320, C08G 6346, C08G 1842

Patent

active

043317820

ABSTRACT:
The present invention is an improvement in a method for making a phenol-functional polyester polymer wherein a hydroxybenzoic acid, a polyol, and a dicarboxylic acid are subjected to a polyesterification reaction under polyesterification conditions to make said polymer. The improvement comprises conducting the reaction in two stages, the first stage comprising the formation of an ester-alcohol adduct between said hydroxybenzoic acid and an epoxy compound wherein the ratio of carboxyl groups from said hydroxybenzoic acid to said oxirane groups of said epoxy compound is about 1:1. The second stage of the improvement comprises conducting the polyesterification reaction with said adduct.

REFERENCES:
patent: 3409579 (1968-11-01), Robins et al.
patent: 3429848 (1969-02-01), Robins
patent: 3676392 (1972-07-01), Robins
patent: 3789044 (1974-01-01), Taft et al.
patent: 3804805 (1974-04-01), Kuhfuss et al.
patent: 3822226 (1974-07-01), Taft et al.
patent: 3836491 (1974-09-01), Taft et al.
patent: 3890256 (1975-06-01), McFarlane et al.

Affiliated with

Also associated with

Rating

Hydroxybenzoic acid-epoxy adduct capping agents for polyester re does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydroxybenzoic acid-epoxy adduct capping agents for polyester re, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydroxybenzoic acid-epoxy adduct capping agents for polyester re will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2077534