Polyester resin compositions

Details Polyester resin compositions Polyester resin compositions

1988-03-16

1989-06-20

Kight, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528274, 528288, 528290, 528293, 528354, 528362, 528363, 528364, 524 92, 524 93, 524186, 524190, 524234, 524235, 524237, 523503, 523507, C08G 6302

Patent

active

048410160

ABSTRACT:
An additive composition for enhancing curing and color clarity properties of polyester resins. The additive comprises from about 50 to 75 parts by weight of a mercaptan, and from about 50 to about 25 parts by weight of a quaternary ammonium salt. From about 0.5 to about 25 parts by weight of a polymerization initiator can be incorporated into the additive when the polyester resin is utilized as a gel coat. Resinous compositions formulated with the additive consist essentially of from about 50 to about 99.5 parts by weight of a polyester resin, from about 0.5 to about 35 parts by weight of the mercaptan, from about 0.1 to about 15 parts by weight of the quaternary ammonium salt, and a minor effective amount of an oxidizing agent for the polyester resin.

REFERENCES:
patent: 3288735 (1966-11-01), Watanabe et al.
patent: 4032596 (1977-06-01), Uffner et al.
Richter et al., "Azo Compounds for Free Radical Crosslinking of Polysiloxane Stationary Phases" CA100(8):52876t.
Minami et al., "Azo-Type Curing Agents for Unsaturated Polyesters" CA79(2):6186t.
MacLeay "Mixtures of Azoalkanes", CA105(24):209561q.

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