AQUEOUS DISPERSION-TYPE PRESSURE-SENSITIVE ADHESIVE COMPOSITION, METHOD FOR PRODUCING THE SAME, ADHESIVE OPTICAL FILM, AND IMAGE DISPLAY DEVICE
PROBLEM TO BE SOLVED: To provide an aqueous dispersion-type pressure sensitive adhesive composition high in adhesiveness, heat resistance, and in moisture resistance, to provide an adhesive optical film having an adhesive layer comprised of the aqueous dispersion-type pressure sensitive composition,...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
18.12.2008
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Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To provide an aqueous dispersion-type pressure sensitive adhesive composition high in adhesiveness, heat resistance, and in moisture resistance, to provide an adhesive optical film having an adhesive layer comprised of the aqueous dispersion-type pressure sensitive composition, and to provide an image display device and a method for producing the aqueous dispersion-type pressure sensitive composition. SOLUTION: The method for producing the aqueous dispersion-type pressure sensitive adhesive composition comprises preparing a dispersion, wherein a silica fine particle is dispersed in monomer components, obtained by formulating the monomer components, that contain an alkyl (meth)acrylate, a carboxyl group-containing vinyl monomer and a phosphoric acid group-containing vinyl monomer as essential components, and a vinyl monomer capable of copolymerizing with the essential components as an optional component, with a hydrophobilized silica fine particle, then preparing an emulsion by emulsifying the dispersion so that a volume-based median diameter of oil drops becomes 500 nm or less, and finally performing polymerization of the monomers in the emulsion in the presence of an initiator. COPYRIGHT: (C)2009,JPO&INPIT |
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Bibliography: | Application Number: JP20070153033 |