Hydroxy-functional vinyl copolymers

Details Hydroxy-functional vinyl copolymers Hydroxy-functional vinyl copolymers

1979-11-20

1981-04-28

Wong, Jr., Harry

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

260 304R, 260 304A, 521174, 526 87, 526333, 528 75, C08F21208, C08F21612, C08F21614, C08F 1810

Patent

active

042647550

ABSTRACT:
The instant invention is directed to novel hydroxy-functional vinyl copolymers. The copolymers diclosed herein are produced by polymerizing styrene in the presence of a mono- or diallyl ether of a saturated aliphatic polyol having a hydroxyl functionality of 3 or 4. The resultant copolymer is characterized as having an OH number of between about 45 and about 100 and a number average molecular weight between about 7000 and about 20,000. The resultant copolymerizate is further characterized as forming a substantially clear, colorless solution with conventional liquid polyether polyols used and known in the polyurethane art.

REFERENCES:
patent: 3383351 (1968-05-01), Stamberger
patent: 3652639 (1972-03-01), Pizzini et al.
patent: 3823201 (1974-07-01), Pizzini et al.

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