UV coatings containing chlorinated polyolefins, method of curing

Details UV coatings containing chlorinated polyolefins, method of curing UV coatings containing chlorinated polyolefins, method of curing

1988-03-14

1989-11-14

Bleutge, John C.

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

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

522 14, 525193, 427 541, 428457, C08C 1928, C08F 248

Patent

active

048808490

ABSTRACT:
Disclosed is a coating composition which crosslinks upon exposure to ultraviolet radiation. The coating composition comprises: (A) from 1 to 5 percent of a saturated, chlorinated polymeric material selected from the group consisting of (1) a chlorinated polyolefin containing about 5 to 75 percent by weight of chlorine and having a number average molecular weight of about 5,000-50,000, (2) a chlorinated polyolefin containing carboxylic anhydride groups and about 5 to 25 percent by weight of chlorine and having a number average molecular weight of about 5,000-50,000, and (3) a mixture thereof; (B) from 20 to 80 percent of a radiation sensitive monomer having at least two addition polymerizable unsaturated bonds; (C) from 0.1 to 5.0 percent of a photopolymerization initiator; and (D) from 80 to 20 percent of an acrylic addition polymer having at least one amino group and having a number average molecular weight of about 8,000-70,000.
Also disclosed is a method of coating comprising: (I) applying to a plastic substrate a film of coating composition of the invention; and (II) curing the film by exposing the film to ultraviolet radiation.
Also disclosed is a plastic article having directly adhered to a surface thereof, a crosslinked film produced by the method of the invention.

REFERENCES:
patent: 4134811 (1979-01-01), De Poor tere et al.
patent: 4144066 (1979-03-01), Ernsberger
patent: 4197132 (1980-04-01), Yazawa et al.
patent: 4303697 (1981-12-01), Baseden
patent: 4632897 (1986-12-01), Barzynski et al.
TP Status Report for TP-87-24, dated May 20, 1987, item 2 (g).

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