POLYURETHANE ADHESIVE COMPOSITION AND PRESSURE- SENSITIVE ADHESIVE SHEET USING THE SAME

PROBLEM TO BE SOLVED: To obtain a repeelable pressure-sensitive polyurethane adhesive composition having excellent adhesion, transparency and weather resistance, hardly leaving the adhesive, and capable of being repeatedly used, and to provide a pressure-sensitive adhesive sheet obtained by coating...

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Bibliographic Details
Main Authors KITANO OSAMU, AKITA SHOICHI
Format Patent
LanguageEnglish
Published 08.08.2003
Edition7
Subjects
ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE
ADHESIVES
CHEMISTRY
COMPOSITIONS BASED THEREON
DYES
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL
ORGANIC MACROMOLECULAR COMPOUNDS
PAINTS
POLISHES
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF MATERIALS AS ADHESIVES
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Summary:PROBLEM TO BE SOLVED: To obtain a repeelable pressure-sensitive polyurethane adhesive composition having excellent adhesion, transparency and weather resistance, hardly leaving the adhesive, and capable of being repeatedly used, and to provide a pressure-sensitive adhesive sheet obtained by coating the adhesive composition on a base material, and having excellent characteristics. SOLUTION: This adhesive composition uses (A) a polyol component comprising the diol component consisting essentially of a polyether-diol and/or a polyester diol having an aromatic ring and a polyoxyalkylene group in the molecule, and a polyether triol in a prescribed ratio, and (B) a polyisocyanate component comprising an aliphatic or alicyclic polyisocyanate, or a prepolymer obtained by using the polyisocyanate and having an isocyanate group at the terminal. COPYRIGHT: (C)2003,JPO
Bibliography:Application Number: JP20020023586