High energy curable coatings comprising thermoplastic polymers
AssigneeThe Sherwin-Williams Company
InventorJoseph E. Miller
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Abstract
A radiation curable coating composition comprising: (i) a thermoplastic polymer; (ii) at least one ethylenically unsaturated adhesion-promoting monomer or oligomer; (iii) at least one other ethylenically unsaturated radiation polymerizable reactant; and (iv) at least one initiator for initiating cure.
Claims20
A radiation curable coating composition comprising:
- (i) a thermoplastic polymer having a number average molecular weight less than 10,000;
- (ii) at least one ethylenically unsaturated adhesion-promoting monomer or oligomer having a functional group selected from the group consisting of amine, carboxyl, sulfonic, amido, ureido and N-heterocyclic functional groups;
- (iii) at least one other ethylenically unsaturated radiation polymerizable reactant;
- and
- (iv) at least one initiator for initiating cure upon exposure to radiation.
A method of coating a substrate comprising:
- (a) providing an appropriate substrate;
- (b) depositing onto at least one surface of the substrate a coating composition comprising:
- (i) a thermoplastic polymer having a number average molecular weight less than 10,000;
- (ii) at least one ethylenically unsaturated adhesion-promoting monomer or oligomer having a functional group selected from the group consisting of amine, carboxyl, sulfonic, amido, ureido and N-heterocyclic functional groups;
- (iii) at least one other ethylenically unsaturated radiation polymerizable reactant;
- and
- (iv) at least one initiator for initiating cure upon exposure to radiation;
- and
- (c) exposing the applied coating to a curing amount of high energy radiation to produce a cured adherent coating.
A substrate coated with a multi-layer decorative and/or protective coating which comprises a primer coat layer and a topcoat layer and wherein the primer coat layer comprises the reaction product obtained by the radiation cure of a liquid coating composition comprising:
- (i) a thermoplastic polymer;
- (ii) at least one ethylenically unsaturated adhesion-promoting monomer or oligomer having a functional group selected from the group consisting of amine, carboxyl, sulfonic, amido, ureido and N-heterocyclic functional groups;
- (iii) at least one other ethylenically unsaturated radiation polymerizable reactant;
- and
- a. at least one initiator for initiating cure.
Dependencies are inferred from the claim text.