Protective tape used for optical member

Details Protective tape used for optical member Protective tape used for optical member

2007-09-18

2007-09-18

Zirker, Daniel (Department: 1771)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

C428S040100, C428S343000, C428S3550AC, C428S480000

Reexamination Certificate

active

10763977

ABSTRACT:
A protective tape used for optical member comprising a plastic film base, a pressure-sensitive adhesive layer formed on one side of the plastic film base and a treated layer formed on an opposite side of the plastic film base, wherein the treated layer has a structure in which a copolymer (A) including (a) an alkyl (meth)acrylate having an alkyl group with carbon numbers of 8 to 20; (b) (meth)acrylonitrile; and (c) a monomer having functional groups copolymerizable with the component (a) and the component (b), as copolymerization components, is cross-linked by a cross-linking agent. The protective tape used for optical member is enabled to direct print with an ink on the treated layer and have a low adhesive property with the pressure-sensitive adhesive applied to an optical film and have a solvent resistance.

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Japanese Patent Abstract 09-113726.

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