Light-Curable Adhesive Composition with Improved Bonding Performance to Low Surface Energy Substrates
AssigneeHenkel AG & Co. KGaA
InventorsAndrew D. Messana, Chih-Min Cheng
Life of this patent
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Abstract
Disclosed are one-part, light-curable adhesive compositions with improved bonding performance, their method of preparation and their use, particularly in applications requiring bonding to at least one low surface energy substrate; and in some embodiments the compositions include a polybutadiene urethane acrylate oligomer; optionally, a polyisobutylene (meth)acrylate oligomer; a (meth)acrylate monomer; a polyurethane acrylate oligomer; a photo-curing system; and a light-curable polydimethylsiloxane di-functional (meth)acrylate oligomer.
Claims22
A one-part, light-curable adhesive composition which exhibits high adhesion properties when bonded to thermoplastic substrate(s) subsequent to cure, comprising:
- a polybutadiene urethane acrylate oligomer present in an amount of about 10% to about 60% by weight;
- a (meth)acrylate monomer present in an amount of about 50% to about 75% by weight;
- a polyurethane acrylate oligomer;
- a photo-curing system;
- and
- a light-curable polydimethylsiloxane di-functional (meth)acrylate oligomer.
A method of making a one-part, light-curable adhesive composition which exhibits high adhesion properties when bonded to thermoplastic substrate(s) subsequent to cure, comprising the steps of combining:
- about 10% to about 60% by weight polybutadiene urethane acrylate oligomer;
- about 50% to about 75% by weight (meth)acrylate monomer;
- a polyurethane acrylate oligomer;
- a photo-curing system;
- a light-curable polydimethylsiloxane di-functional (meth)acrylate oligomer;
- and
- optionally, about 5% to about 15% by weight polyisobutylene (meth)acrylate oligomer.
A one-part, light-curable adhesive composition which exhibits high adhesion properties when bonded to thermoplastic substrate(s) subsequent to cure, comprising:
- a di-functional polybutadiene acrylate resin present in an amount of about 10% to about 60% by weight;
- a combination of isobornyl acrylate (IBOA), hydroxyethyl methacrylate phosphate, trimethylolpropane triacrylate, present in an amount of about 50% to about 75% by weight;
- a functional aliphatic polyether urethane acrylate oligomer;
- a photo-curing system;
- and
- a multi(meth)acrylate functionalized polydimethylsiloxane.
Dependencies are inferred from the claim text.