The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9309431 B1

Date of Patent:

Apr. 12, 2016

Filed:

Jun. 12, 2012

Vinyl alcohol polymer, aqueous solution, coating agent, ink jet recording material, thermal recording material and base paper for release paper containing same

Applicants:

Yuta Taoka, Kurashiki, JP;

Shinsuke Nii, Tainai, JP;

Masato Nakamae, Kurashiki, JP;

Inventors:

Yuta Taoka, Kurashiki, JP;

Shinsuke Nii, Tainai, JP;

Masato Nakamae, Kurashiki, JP;

Assignee:

KURARAY CO., LTD., Kurashiki-shi, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Vu A Nguyen

Int. Cl.

CPC ...

C09D 129/02 (2006.01); C09J 7/04 (2006.01); C08F 18/04 (2006.01); C08L 43/04 (2006.01); B41M 5/52 (2006.01); C08F 230/08 (2006.01); C09D 129/04 (2006.01); D21H 27/00 (2006.01); D21H 17/36 (2006.01); D21H 19/20 (2006.01); D21H 19/60 (2006.01); C09D 143/04 (2006.01); C08F 218/08 (2006.01); B41M 5/44 (2006.01); B41M 5/50 (2006.01); D21H 21/16 (2006.01); B41M 5/337 (2006.01);

U.S. Cl.

CPC ...

C09D 129/02 (2013.01); B41M 5/5254 (2013.01); C08F 218/08 (2013.01); C08F 230/08 (2013.01); C09D 129/04 (2013.01); C09D 143/04 (2013.01); C09J 7/048 (2013.01); D21H 17/36 (2013.01); D21H 19/20 (2013.01); D21H 19/60 (2013.01); D21H 27/001 (2013.01); B41M 5/3372 (2013.01); B41M 5/44 (2013.01); B41M 5/443 (2013.01); B41M 5/506 (2013.01); B41M 5/529 (2013.01); B41M 2205/04 (2013.01); B41M 2205/38 (2013.01); B41M 2205/40 (2013.01); D21H 21/16 (2013.01); Y10T 428/2839 (2015.01); Y10T 428/31895 (2015.04);

Abstract

Provided is a vinyl alcohol polymer that provides a coating film having superior water resistance and binder performances, and has sufficient solubility in water and viscosity stability even in a neutral pH region. Further provided are an aqueous solution, a coating agent, an ink jet recording material, a thermal recording material and a base paper for a release paper that comprise the vinyl alcohol polymer, and a method for producing same, and the like. The vinyl alcohol polymer includes a monomer unit represented by the following formula (1), with the following inequality (I) being satisfied. Preferably, the following inequalities (II) and (III) are further satisfied according to the PVA:

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