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Title:
AQUEOUS EMULSION AND ADHESIVE IN WHICH SAME IS USED
Document Type and Number:
WIPO Patent Application WO/2016/103712
Kind Code:
A1
Abstract:
The invention pertains to an aqueous emulsion containing a polymer as a dispersoid and PVA as a dispersant, the polymer containing ethylenically unsaturated monomer units; wherein, the free PVA content of the aqueous emulsion is 0.2-20 parts by mass per 100 parts by mass of the polymer containing ethylenically unsaturated monomer units, the degree of saponification of the free PVA is 80.0-99.5% molar, the viscosity-average degree of polymerization is 200-5000, and the free PVA has a symmetry factor (W0.05 h/2f), based on JIS K0124 (2011) that satisfies formula (1), said factor measured by reversed-phase distribution gradient high-speed liquid chromatography using a water-acetone eluent. 0.85≤W0.05h2f≤1.30 (1) (the meanings of the symbols are omitted)

Inventors:
MAKI, Hideki (7471, Tamashimaotoshima, Kurashiki-sh, Okayama 50, 〒7138550, JP)
NAKAMAE, Masato (331 North Bridge Road #18-02 Odeon Towers, 188720, SG)
Application Number:
JP2015/006450
Publication Date:
June 30, 2016
Filing Date:
December 24, 2015
Export Citation:
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Assignee:
KURARAY CO., LTD. (1621, Sakazu Kurashiki-sh, Okayama 01, 〒7100801, JP)
KURARAY ASIA PACIFIC PTE. LTD. (10 Sakra Avenue7, 627887, SG)
International Classes:
C08F2/20; C08F2/24; C08L29/04; C08L101/02; C09J11/08; C09J109/00; C09J125/04; C09J131/02; C09J133/04; C09J157/00; C09J175/04
Domestic Patent References:
WO2016009631A12016-01-21
WO2011114575A12011-09-22
WO2015186745A12015-12-10
Foreign References:
JPH05279648A1993-10-26
JPH08259659A1996-10-08
JP2009084505A2009-04-23
Other References:
See also references of EP 3239185A4
Attorney, Agent or Firm:
KAMADA, Koichi et al. (8th Fl, UMEDA PLAZA BLDG. ANNEX 4-3-25, Nishitenma, Kita-ku, Osaka-sh, Osaka 47, 〒5300047, JP)
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