UV curable blend compositions and processes

Details UV curable blend compositions and processes UV curable blend compositions and processes

1995-06-07

1996-11-05

Beck, Shrive

Coating processes

Direct application of electrical, magnetic, wave, or...

Polymerization of coating utilizing direct application of...

427495, 427508, 427517, 427518, 427519, 427520, 522 90, 522 98, B05D 306

Patent

active

055715702

ABSTRACT:
An ultraviolet curable blend composition comprising (exclusive of any solvent present): (a) about 35% to about 65% by weight of a first acrylated aliphatic urethane having a molecular weight of between about 500 and 2000 and formed by the reaction of (i) a first multifunctional acrylate with a molecular weight of between about 190 and 500 and containing at least three polymerizable unsaturated groups per molecule, with (ii) an aliphatic urethane based on a polymer of allyl carbomonocycle diisocyanate with alkanepolyol polyacrylates; (b) about 5% to about 25% by weight of a second acrylated aliphatic urethane having a molecular weight of about 1200 to about 2600 and formed by the reaction of a second multifunctional acrylate with a molecular weight of about 110 to about 500 with an aliphatic urethane based on a polyether and having a molecular weight of about 800 to about 2200; (c) about 10% to about 55% by weight of a third multifunctional acrylate having a molecular weight of between about 170 and about 1000 and containing at least two polymerizable unsaturated groups per molecule; and (d) a photopolymerization initiator and/or sensitizer. Also described are preferred processes and coated articles involving preferred compositions.

REFERENCES:
patent: 4065587 (1977-12-01), Ting
patent: 4128600 (1978-12-01), Skinner et al.
patent: 4287323 (1981-01-01), Tefertiller et al.
patent: 4393187 (1983-07-01), Boba et al.
patent: 4511596 (1985-04-01), Berner
patent: 4717739 (1988-01-01), Chevreux et al.
patent: 4929506 (1990-05-01), Kerr, III et al.

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