ACRYLIC PRESSURE-SENSITIVE ADHESIVE

PURPOSE:To obtain the title adhesive, containing a branched polymer, mainly containing a specific acrylic monomer and having a specific polymerization degree and excellent in balance between tackiness and cohesive force and further bonding durability to curved surfaces, etc., and heat resistance, su...

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Bibliographische Detailangaben
Hauptverfasser:	SUNAKAWA MAKOTO, ANDO MASAHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	PURPOSE:To obtain the title adhesive, containing a branched polymer, mainly containing a specific acrylic monomer and having a specific polymerization degree and excellent in balance between tackiness and cohesive force and further bonding durability to curved surfaces, etc., and heat resistance, such as thermal history resistance. CONSTITUTION:The aimed adhesive containing a branched polymer, containing 50-100wt.% units consisting of an acrylic monomer expressed by the formula (R1 is H or methyl; R2 is 2-14C alkyl) and having preferably 2X105-8X10 (especially 5X10 -5X10 ) weight-average molecular weight (Mw) measured by gel permeation chromatography and >=1.3 (preferably 1.5-3.0) ratio of the Mw measured by a light scattering method to the Mw obtained by a polystyrene(PS) conversion method as a component.