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Title:
水性エマルジョン及びそれを用いた接着剤
Document Type and Number:
Japanese Patent JP6647217
Kind Code:
B2
Abstract:
The present invention relates to an aqueous emulsion including an ethylenically unsaturated monomer unit-containing polymer as a dispersoid and a polyvinyl alcohol as a dispersant. The content of a free polyvinyl alcohol in the aqueous emulsion is 0.2 to 20 parts by mass relative to 100 parts by mass of the ethylenically unsaturated monomer unit-containing polymer. The free polyvinyl alcohol has a degree of saponification of 80.0 to 99.5 mol% and a viscosity-average degree of polymerization of 200 to 5000, and the free polyvinyl alcohol has a symmetry factor (W 0.05h /2f) that satisfies the following expression (1) as determined by gradient high-performance liquid chromatography for reversed-phase separation using a water-acetone eluent according to JIS K 0124 (2011). 0.85 ‰¤ W 0.05 h / 2 f ‰¤ 1.30

Inventors:
Hideki Maki
Masato Nakamae
Application Number:
JP2016565929A
Publication Date:
February 14, 2020
Filing Date:
December 24, 2015
Export Citation:
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Assignee:
KURARAY CO.,LTD.
International Classes:
C08F2/30; C08K5/29; C08L9/00; C08L25/04; C08L33/08; C08L33/10; C08L101/02; C09J123/00; C09J125/04; C09J131/00; C09J133/04
Domestic Patent References:
JP6446870B2
JP2000160126A
JP5279648A
JP8259659A
JP2009084505A
Foreign References:
WO2010113566A1
WO2011114575A1
Attorney, Agent or Firm:
Koichi Kamata
Tamura Yasuaki