Polyester composition stabilized against gel-time drift with ami

Details Polyester composition stabilized against gel-time drift with ami Polyester composition stabilized against gel-time drift with ami

1979-07-27

1981-05-12

Lieberman, Paul

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

Synthetic resins

Ethylenically unsaturated reactant admixed with either...

525 13, 525 16, 525 25, C08L 6706

Patent

active

042672791

ABSTRACT:
Gel-time drift may be reduced in promoted polyester resin systems by incorporation of an amine salt in accordance with the disclosed compositions and methods. The amine salt is a salt-like reaction product of an amine and a carboxylic acid-containing moiety. For free-amine type promoted resin systems, an amine salt may be substituted for the amine promotor to provide a low-energy curable polyester resin system having the advantages of a promoted system as well as being stabilized against gel-time drift. Comparative data show suppression of gel-time drift of resin samples containing an amine salt to as low as 7 percent of gel-time drift of counterpart free-amine promoted resin system samples.

REFERENCES:
patent: 2646416 (1953-07-01), Parker
patent: 3398213 (1968-08-01), Chetakian
Def. Pub. T942003, published 1-6-76.

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