TRANSPARENT ADHESIVE SHEET

The present invention is a transparent pressure-sensitive adhesive sheet that is formed of a resin composition [F], and has a storage modulus at 25°C of 1×10 6 to 1×10 8 Pa, the resin composition [F] comprising a modified hydrogenated block copolymer [E] as a main component, the modified hydrogenate...

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Bibliographic Details
Main Authors ISHIGURO, Atsushi, SAITOU, Daisuke, KOHARA, Teiji
Format Patent
LanguageEnglish
French
German
Published 17.06.2020
Subjects
ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE
ADHESIVES
CHEMISTRY
DYES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL
PAINTS
POLISHES
USE OF MATERIALS AS ADHESIVES
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Summary:The present invention is a transparent pressure-sensitive adhesive sheet that is formed of a resin composition [F], and has a storage modulus at 25°C of 1×10 6 to 1×10 8 Pa, the resin composition [F] comprising a modified hydrogenated block copolymer [E] as a main component, the modified hydrogenated block copolymer [E] being obtained by introducing an alkoxysilyl group into a hydrogenated block copolymer [D], the hydrogenated block copolymer [D] being obtained by hydrogenating 90% or more of unsaturated bonds of a block copolymer [C] that comprises at least two polymer blocks [A] comprising a specific compound and at least one polymer block [B] comprising a specific compound, and a ratio (wA:wB) of a total weight fraction wA of the polymer block [A] in the block copolymer [C] to a total weight fraction wB of the polymer block [B] in the block copolymer [C] being 20:80 to 60:40.
Bibliography:Application Number: EP20150755344