Vinyl copolymer, method for making, and room temperature curing

Details Vinyl copolymer, method for making, and room temperature curing Vinyl copolymer, method for making, and room temperature curing

1995-06-30

1996-05-14

Bleutge, John C.

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

Synthetic resins

From silicon reactant having at least one...

528 14, 528 17, 528 18, 528 21, 528 22, 528 34, 526279, 525100, C08G 7708

Patent

active

055168680

ABSTRACT:
A vinyl copolymer is provided comprising a silanol group-containing (meth)acryl siloxane unit of formula (1): ##STR1## wherein R.sup.1 is hydrogen or methyl, R.sup.2, R.sup.3, and R.sup.4 are independently a monovalent C.sub.1 -C.sub.8 hydrocarbon group or a siloxy group, R.sup.5 is a monovalent C.sub.1 -C.sub.8 hydrocarbon group, n=1 to 12, and a=0 or 1. The vinyl copolymer is prepared by copolymerizing a polymerizable vinyl monomer with a silanol group-containing (meth)acryl siloxane in the presence of a radical initiator or by emulsion polymerizing a polymerizable vinyl monomer with a silanol group-containing (meth)acryl siloxane in an aqueous medium in the presence of a surfactant and a polymerization initiator. The copolymer is blended with a condensation catalyst to form a room temperature curable resin composition which crosslinks in the presence of moisture into a cured coating having weatherability, flexibility, and adherence.

REFERENCES:
patent: 4419505 (1983-12-01), Ratkowski et al.
patent: 4661m573 (1987-04-01), Ratkowski et al.
patent: 5115014 (1992-05-01), Wakabayashi et al.
patent: 5342983 (1994-08-01), Yamazaki et al.
Introduction to Polymer Chemistry, Stille 1962, pp. 66-67.
Textbook of Polymer Science, Billmeyer, Jr., 1962, pp. 358-361.

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