Curable fluorocopolymer with dual function vinyl ether

Details Curable fluorocopolymer with dual function vinyl ether Curable fluorocopolymer with dual function vinyl ether

1992-06-15

1993-04-27

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526255, C08F 1220

Patent

active

052063208

ABSTRACT:
A rapidly curable fluorocopolymer comprises (a) 40 to 60 mole % of fluoroolefin units, (b) 8 to 60 mole % of the monovinyl ether of cyclohexanedimethanol units and (c) 5 to 45 mole % of alkyl vinyl ether units, wherein the mole % of a =b +c. The vinyl ether group provides an enhanced polymer Tg and a primary hydroxy site in the backbone of the polymer for effective and rapid crosslinking upon curing with isocyanates. The presence of (b) +(c) in substantially equimolar amounts with (a) provides coatings having the desired hardness without brittleness, and in suitable ratio for reaction copolymerization with (a).

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