Pressure-sensitive adhesive sheet

Details Pressure-sensitive adhesive sheet Pressure-sensitive adhesive sheet

2011-01-11

2011-01-11

Szekely, Peter (Department: 1796)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

C428S214000, C428S354000, C428S511000

Reexamination Certificate

active

07867610

ABSTRACT:
A pressure-sensitive adhesive sheet has a high adhesiveness and an excellent terminal peeling resistance as well as exhibits extremely small diffusing amounts of formaldehyde and toluene. The pressure-sensitive adhesive sheet contains at least a pressure-sensitive adhesive layer of a water-dispersion type acrylic pressure-sensitive adhesive containing a water-dispersion type acrylic polymer and a tackifying resin-containing emulsion, wherein a diffusing amount of formaldehyde is less than 3 μg/m3and a diffusing amount of toluene is 10 μg/g or less. As the tackifying resin-containing emulsion, a tackifying resin-containing emulsion prepared using substantially no organic solvents or a tackifying resin-containing emulsion prepared using a material other than aromatic hydrocarbon-based organic solvents can be suitably employed.

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