Pressure-sensitive adhesive sheet

Details Pressure-sensitive adhesive sheet Pressure-sensitive adhesive sheet

1996-09-09

1998-08-18

Davis, Jenna

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

428343, C09J 702

Patent

active

057956502

ABSTRACT:
A pressure-sensitive adhesive sheet 1A is for use by sticking onto a liquid crystal cell, and it has a construction wherein the pressure-sensitive adhesive layer 3 is joined to one side of the base material layer 2 which is constructed with a light-polarizing sheet and a release sheet 4 stuck onto the other side from the base material layer 2 of the pressure-sensitive adhesive layer 3. As a main polymer for constituting the pressure-sensitive adhesive layer 3, an acrylic-based polymer is for example used, of which weight-average molecular weight is 600,000 to 2,000,000. Further, a plasticizer is added to the pressure-sensitive adhesive layer 3. According to the pressure-sensitive adhesive sheet, the stress which is produced by contraction, for example, of the base material layer is relieved and stress concentration can be reduced. In particular, white marking and color unevenness of the liquid crystal cell can be suppressed.

REFERENCES:
patent: 465213 (1891-04-01), Schlademan
patent: 4737410 (1988-04-01), Kantner

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