Preparation of vinyl ether terminated polyesters

Details Preparation of vinyl ether terminated polyesters Preparation of vinyl ether terminated polyesters

1992-08-24

1994-02-15

Kight, III, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528274, 528300, 528301, 528308, 528392, 525438, 525445, 525447, 560 91, 560198, C08G 6347

Patent

active

052868354

ABSTRACT:
Vinyl ether terminated ester oligomers having a range of molecular weights are prepared by reacting a vinyl ether terminated polybasic ester with a polyol in the presence of a catalyst. Continual removal of a hydroxy monovinyl ether avoids formation compounds containing acetal moieties. Alternatively, a polybasic ester is chain extended with a polyol with continual removal of the alcohol by-product. Then, the terminal ester moieties are end capped with a monohydroxy vinyl ether. The oligomers have application in coatings and the like.

REFERENCES:
patent: 4749807 (1988-06-01), Lapin et al.
patent: 4775732 (1988-10-01), Lapin
patent: 4845265 (1989-07-01), Lapin

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