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US 4,035,320 AGranted
Radiation curable compositions
AssigneeUnion Camp Corporation
InventorNelson E. Lawson
Life of this patent
Estimating the term…
Abstract
Disclosure is made of radiation curable, solventless compositions useful in coatings, films and in preparing printing inks. The compositions comprise the reaction product of an equivalent excess of an acrylic type acid with a particular class of polyester polyol. The polyester polyol is the condensation product of an excess of an aliphatic polyol having at least two hydroxyl groups and a molecular weight of from 60 to 250 with a specific class of aliphatic polycarboxylic acids derived from fatty and resin acids.
Claims7
The polyacrylate reaction product of,
- (a) an equivalent excess of an acrylic compound of the formula:
- ##STR2## wherein R is selected from hydrogen and methyl;
- R' is selected from hydrogen, methyl and ethyl;
- and
- (b) a polyester polyol obtained by the condensation of
- (i) an aliphatic polycarboxylic acid having a molecular weight of at least 325 and at least 19 carbon atoms, inclusive;
- with
- (ii) an equivalent excess of an aliphatic polyol having at least two hydroxyl groups and a molecular weight of between about 60 to about 250;
- said reaction of (a) and (b) being under conditions wherein said acrylic compound does not polymerize.
6 more elements
Dependencies are inferred from the claim text.