Title: Photo-curing resin composition for DVD
Application Number: 98102750 Application Date: 1998.07.01
Publication Number: 1208056 Publication Date: 1999.02.17
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C08K5/53;C08L75/14;G03G8/00
Applicant(s) Name: Sumitomo Chemical Co., Ltd. Address:
Inventor(s) Name: Hotsumi Jiro
Attorney & Agent: yan fang
Abstract:
    A layer for protection coating and adhesion of DVD is formed by a photo-curing resin composition which comprises a photo-curing component which is cured by polymerization reaction of a unsaturated group, a photo-polymerization initiator and a phenol-based primary antioxidant, wherein this photo-curing component comprises a bi-functional urethane acrylate, an epoxy acrylate containing a bisphenol A skeleton, and a N-vinyl lactam compound, said polymerization initiator comprising a mono or di-benzoylphosphine oxide compound in an amount of 0.1% by weight or more to less than 5.0% by weight based on the total amount of said photo-curing components, and the viscosity of this resin composition at 25 DEG C being in the range from 350 to 700 mPa.s.
Time: 9
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