POLYMER COMPOSITION FOR PRESSURE-SENSITIVE ADHESIVE AND PRESSURE-SENSITIVE ADHESIVE COMPOSITION

PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive composition that has excellent performance balance of pressure-sensitive adhesive characteristics, excellent solubility and processability.SOLUTION: The polymer composition for a pressure-sensitive adhesive includes (1) 95-99 mass% of a...

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Bibliographische Detailangaben
Hauptverfasser:	NAKAJIMA SHIGEO, YAHIRO SHUJI
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DYES MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED 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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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive composition that has excellent performance balance of pressure-sensitive adhesive characteristics, excellent solubility and processability.SOLUTION: The polymer composition for a pressure-sensitive adhesive includes (1) 95-99 mass% of a block copolymer that comprises a polymer block (A) mainly composed of a vinyl aromatic monomer unit and a polymer block (B) mainly composed of a conjugated diene monomer unit and is a mixture of a prescribed diblock copolymer component (a) and a prescribed block copolymer (any one component of a component (b), a component (c) and a component (d)) and (2) 1-5 mass% of a resin mainly comprising a polystyrene having a prescribed peak molecular weight and molecular weight distribution. The pressure-sensitive adhesive composition is obtained by combining the polymer composition for a pressure-sensitive adhesive with a tackifier and a softener.