Title:
PRESSURE-SENSITIVE ADHESIVE TAPE
Document Type and Number:
Japanese Patent JP3510724
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prepare a pressure-sensitive adhesive tape improved particularly in productivity, releasability (spreadability), adaptability to writing, slipperiness, etc., by providing a release agent layer formed from a specified water-dispersible release agent composition on the rear.
SOLUTION: Pressure-sensitive adhesive tape is formed by providing a release agent layer on one side of a polystyrene or polycarbonate resin film and a pressure-sensitive adhesive layer on the other side thereof. The release agent layer is formed from a water-dispersible release agent composition consisting of a release agent obtained by reacting a vinyl acetate (co)polymer having a degree of polymerization of 300 to 5,000 and containing at least 50mol% vinyl alcohol units with a 6-30C long-chain alkyl compound having functional groups selected among isocyanate, carboxyl, acyl halide, ketene, aldehyde and epoxy groups and reactive with a hydroxyl group at an equivalent ratio of the hydroxyl groups of the (co)polymer to the functional groups of the alkyl compound of 1:(at least 0.5) and an acid-modified polyolefin copolymer having an acid value of 0.2 to 800 or a 10-30C fatty acid.
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Inventors:
Atsuta, Kenji
Matsuki, Chikara
Ueda, Tsunehisa
Matsuki, Chikara
Ueda, Tsunehisa
Application Number:
JP32291195A
Publication Date:
March 29, 2004
Filing Date:
December 12, 1995
Export Citation:
Assignee:
SEKISUI CHEM CO LTD
International Classes:
C09J7/02; (IPC1-7): C09J7/02
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