Radiation curable adhesive for digital versatile disc
AssigneeDsm N.V.
InventorsChau Thi Minh Ha, Vadim V Krongauz, Rajni Jaria, Michael G. Sullivan
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Abstract
A UV-curable acrylate base adhesive composition for digital versatile discs and other substrates, a method for bonding verstile digital disc layers together with a UV-curable adhesive, and a digital versatile disc bonded by a UV-curable or a radiation curable adhesive. The adhesive comprises acrylate functional components, non-acrylate reactive diluents (e.g. having acrylamide, or N-vinyl functionality) and thiol compounds.
Claims25
A radiation-curable adhesive composition for bonding digital versatile disc components comprising, relative to the total composition, the combination of the following pre-mixture ingredients:
- (A) about 5 wt. % to about 80 wt. % of at least one radiation-curable oligomer selected from the group consisting of oligomers having a polycarbonate backbone and at least two (meth)acrylate groups;
- (B) about 1 wt. % to about 10 wt. % of at least one non-acrylate functional reactive diluent;
- (C) about 10 wt. % to about 80 wt. % of at least one acrylate functional reactive diluent;
- (D) about 0.5 wt. % to about 10 wt. % of at least one radical forming sulphur compound;
- and
- (E) optionally about 0.1 wt. % to about 15 wt. % of one or more photoinitiators.
A radiation-curable adhesive composition comprising the combination of the following pre-mixture ingredients:
- (A) about 15 wt. % to about 80 wt. % of at least one UV or radiation-curable oligomer selected from the group consisting of oligomers having a polycarbonate backbone and at least two (meth)acrylate groups;
- (B) about 1 wt. % to about 10 wt. % of at least one non-acrylate functional reactive diluent;
- (C) about 10 wt. % to about 80 wt. % of at least one acrylate monomer diluent;
- (D) about 0.5 wt. % to about 10 wt. % of at least one thiol compound;
- and
- (E) about 0.1 wt. % to about 15 wt. % of one or more photoinitiators.
A radiation-curable adhesive composition for bonding digital versatile disc components comprising, relative to the total composition, the combination of the following pre-mixture ingredients:
- (A) about 5 wt. % to about 80 wt. % of at least one radiation-curable oligomer selected from the group consisting of oligomers having an acrylic backbone and at least two (meth)acrylate groups;
- (B) about 1 wt. % to about 20 wt. % of at least one non-acrylate functional reactive diluent;
- (C) about 10 wt. % to about 80 wt. % of at least one acrylate functional reactive diluent;
- (D) about 0.5 wt. % to about 10 wt. % of at least one radical forming sulphur compound;
- and
- (E) optionally about 0.1 wt. % to about 15 wt. % of one or more photoinitiators.
A radiation-curable adhesive composition for bonding digital versatile disc components comprising, relative to the total composition, the combination of the following pre-mixture ingredients:
- (A) about 5 wt. % to about 80 wt. % of at least one radiation-curable oligomer selected from the group consisting of oligomers having a polyarylic backbone and at least two (meth)acrylate groups;
- (B) about 1 wt. % to about 20 wt. % of at least one non-acrylate functional reactive diluent;
- (C) about 10 wt. % to about 80 wt. % of at least one acrylate functional reactive diluent;
- (D) about 0.5 wt. % to about 10 wt. % of at least one radical forming sulphur compound;
- and
- (E) optionally about 0.1 wt. % to about 15 wt. % of one or more photoinitiators.
Dependencies are inferred from the claim text.