Radiation curable primer adhesive
AssigneeWorthen Industries
InventorsBob Chang, Vincent Chevalier
Life of this patent
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Abstract
The present invention involves a 100% solids, radiation curable adhesive formulation for adhesion to EVA. This formulation may have varying compositions, as discussed in detail herein. However primarily the composition may comprise at least a monomer, and a chlorinated additive. Photo initiators may be used to allow for low temperature UV or other radiation curing. Other additives may be used to enhance functional features in various ways. In use, the present invention may be coated on a surface of EVA and then cured, and may be adhered to a substrate using only a layer of adhesive on the substrate, in contrast to the structures of the prior art, which require at least two sided adhesive application, among other complexities.
Claims8
A 100% solids composition operable at room temperature and capable of radiation curing comprising:
- a monomer, selected to be at least one of a (meth)acrylate monomer and (meth)acrylate functional urethane oligomer;
- a chlorinated compound selected to be at least one of a chlorinated polyester, chlorinated rubber, and chlorinated polyolefin;
- wherein the chlorinated compound making up 10-40% of the composition;
- a photo initiator making up to 5% of the composition;
- further comprising a plurality of different (meth)acrylate functional urethane oligomers, the plurality of different (meth)acrylate functional urethane oligomers making up 11-75% of the composition;
- wherein the plurality of different (meth)acrylate functional urethane oligomers comprises cyclic aliphatic diacrylate and acidic methacrylate.
A 100% solids composition operable at room temperature and capable of radiation curing comprising:
- a monomer, selected to be at least one of a (meth)acrylate monomer and (meth)acrylate functional urethane oligomer;
- the composition comprising 10-50% of the monomer, the monomer being at least one of hexanediol diacrylate and methyl methacrylate;
- wherein the monomer is mono- or di-functional acrylate monomer, and omits tri-functional acrylates;
- a chlorinated compound selected to be at least one of a chlorinated polyester, chlorinated rubber, and chlorinated polyolefin;
- a photo initiator making up to 5% of the composition;
- and
- further comprising 10-30% cyclic aliphatic diacrylate.
Dependencies are inferred from the claim text.