WATER-SOLUBLE ACRYLIC SELF-ADHESIVE

PURPOSE:To have a self-adhesive provided with the tendency of losing adhesive power in water or the resolubility together with adhesive power under shear, cohesive power, etc., at high temperatures, by incorporating a silica powder in a specified weight ratio into a water-soluble acrylic self-adhesi...

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1. Verfasser: SUNAKAWA MAKOTO
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description PURPOSE:To have a self-adhesive provided with the tendency of losing adhesive power in water or the resolubility together with adhesive power under shear, cohesive power, etc., at high temperatures, by incorporating a silica powder in a specified weight ratio into a water-soluble acrylic self-adhesive used in, e.g., the field of paper making. CONSTITUTION:A water-soluble cyclic self-adhesive is prepared by adding a softening agent (e.g., polypropylene glycol), a crosslinking agent, etc. to a base polymer comprising a water-soluble acrylic polymer such as a 2-hydroxyacrylate/ acrylic acid copolymer or a partial sodium salt of polyacrylic acid. A silica powder is added to this self-adhesive in an amount of 1-100pts.wt. based on 100pts.wt. base polymer of the self-adhesive. Preferably the silica powder has a particle diameter of 100nm or less and is added as a colloidal aqueous dispersion.
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CONSTITUTION:A water-soluble cyclic self-adhesive is prepared by adding a softening agent (e.g., polypropylene glycol), a crosslinking agent, etc. to a base polymer comprising a water-soluble acrylic polymer such as a 2-hydroxyacrylate/ acrylic acid copolymer or a partial sodium salt of polyacrylic acid. A silica powder is added to this self-adhesive in an amount of 1-100pts.wt. based on 100pts.wt. base polymer of the self-adhesive. 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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
title WATER-SOLUBLE ACRYLIC SELF-ADHESIVE
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