MODIFIED POLYVINYL ALCOHOL, RESIN COMPOSITION, AND FILM

WIPO Patent Application WO/2016/056574

A1

The purpose of the present invention is to provide a modified polyvinyl alcohol capable of forming a film exhibiting excellent cold-water solubility, mechanical strength, and chemical resistance. The present invention is a modified polyvinyl alcohol containing a monomer unit represented by formula (I) and a structural unit represented by formula (II), wherein the monomer unit (I) content relative to the total monomer units in the modified polyvinyl alcohol is 0.05-10 mol%, inclusive, the structural unit (II) content relative to the total monomer units in the modified polyvinyl alcohol is 0.001-0.5 mol%, inclusive, the viscosity average polymerization degree is 300-3,000, inclusive, and the degree of saponification is 82-99.5 mol%, inclusive. In formula (I), R1 is a hydrogen atom or an alkyl group. R2 is -R3-SO3 -X+, -R3-N+(R4)3Cl-, or a hydrogen atom. R3 is an alkanediyl group. X+ is a hydrogen atom, a metal atom, or an ammonium group. R4 is an alkyl group.

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JP2010047739	HYDROPHILIC COMPOSITION, AND HYDROPHILIC MEMBER USING THE SAME, HEAT EXCHANGER, AIR CONDITIONER
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TAKAFUJI MASAHIRO (JP)
KATO MASAKI (JP)
MORI YOKO (JP)

PCT/JP2015/078413

April 14, 2016

October 06, 2015

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KURARAY CO (JP)

C08F16/06; B65D65/46; C08J5/18; C08L29/04

JP2003171424A	2003-06-20
JP2000309607A	2000-11-07
JPH07118407A	1995-05-09
JPH09272773A	1997-10-21
JP2001106854A	2001-04-17
JP2005089655A	2005-04-07
JP2005139240A	2005-06-02
JP2001322668A	2001-11-20
JP2004161823A	2004-06-10

See also references of EP 3205675A4

AMANO KAZUNORI (JP)
Kazuki Amano (JP)

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