Surface protecting film for polycarbonate

Details Surface protecting film for polycarbonate Surface protecting film for polycarbonate

2007-09-04

2007-09-04

McClenodn, Sanza L. (Department: 1711)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

C428S343000, C428S349000, C428S352000, C428S3550RA, C428S3550EN, C522S090000, C522S096000, C522S104000, C522S107000, C522S106000, C522S109000, C522S110000, C522S113000, C522S120000, C522S121000, C522S126000

Reexamination Certificate

active

11312688

ABSTRACT:
The objective is to provide a surface protecting film for polycarbonate which is easy to laminate on polycarbonate and remove from the polycarbonate, the peel adhesive strength change to polycarbonate with times is small and there is no adhesive transferring to the backside of the film substrate in the case of storage for a long period or at a high temperature in the roll shape made of the long length tape.There provided a surface protecting film for polycarbonate, wherein a film substrate having Young's modulus of 1 GPa or more and an adhesive layer are comprised, the glass transition temperature (Tg) of the adhesive composing of the pressure sensitive adhesive layer being between 40 to 90° C. and the initial 180° peel adhesive strength to polycarbonate being between 10 to 300 mN/25 mm.

REFERENCES:
patent: 5389437 (1995-02-01), Miyajima et al.
patent: 6472065 (2002-10-01), Alahapperuma et al.
patent: 01-242679 (1989-09-01), None
patent: 2001-243659 (2001-09-01), None
patent: 2002-303005 (2001-10-01), None

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