Photocurable adhesive and production of laminated articles using the same
AssigneeTakeda Chemical Industries, Ltd.
InventorsTsutomu Kubota, Tomoyoshi Shinoda
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Abstract
A photocurable adhesive which comprises: (a) a polyurethene poly(meth)acrylate having a polyurethane structure which contains .alpha., .alpha., .alpha.', .alpha.'-tetramethylxylylenediisocyanate as a main polyisocyanate component; and (b) an adhesive coupling agent in an amount of 0.05-10 parts by weight in relation to 100 parts by weight of the polyurethene poly(meth)acrylate. A process of producing a laminated film is also disclosed which comprises: coating the photocurable adhesive on a first substate; laminating the first substrate to a second substrate; and applying ultraviolet ray or radiant ray to the resultant laminated film.
Claims9
A photocurable adhesive which comprises:
- (a) a polyurethane poly(meth)acrylate having a polyurethane structure which contains .alpha., .alpha., .alpha.', .alpha.'-tetramethylxylylenediisocyanate as a main polyisocyanate component and having (meth)acryloyl groups in the molecule;
- and
- (b) an adhesive coupling agent in an amount of 0.05-10 parts by weight in relation to 100 parts by weight of the polyurethane poly(meth)acrylate.
Dependencies are inferred from the claim text.