BIO-BASED POLYURETHANE RESIN, BIO-BASED POLYURETHANE RESIN SOLUTION, AND PRINTING INK

WIPO Patent Application WO/2018/199085

A1

Provided are: a polyurethane resin having a high biomass degree, which exhibits excellent adhesion performance particularly to a biomass plastic base, enables excellent dispersion of a pigment that is contained therein at a high concentration, and is useful as a binder for printing inks; and a printing ink prepared using the polyurethane resin. A bio-based polyurethane resin produced by reacting a bio-polyol (A) with an isocyanate (B), wherein the component (A) is a bio-based polyester polyol which contains plant-derived components and is a condensation product of a diol component (a) and a dicarboxylic acid component (b), the component (a) contains at least one compound selected from ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,10-decanediol and a dimer diol all of which are plant-derived, the component (b) contains plant-derived succinic acid and another dicarboxylic acid, the (plant-derived succinic acid)/(another carboxylic acid) ratio is 98/2 to 5/95, and the content of the plant-derived components relative to 100% by mass of the bio-based polyurethane resin is 35% or more; and a printing ink.

MISAIZU IWAO (JP)
SATO HIROMASA (JP)
UMEZU MOTOAKI (JP)
GOTO HIROKI (JP)
NATSUI TOMOYUKI (JP)

PCT/JP2018/016596

November 01, 2018

April 24, 2018

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DAINICHISEIKA COLOR CHEM (JP)

C08L75/06; C08G18/68; C08G63/553; C09D11/102

WO2018110664A1

2018-06-21

JP2011225863A	2011-11-10
JP2011226047A	2011-11-10
CN102532460A	2012-07-04
JP2016150942A	2016-08-22
JP2014516367A	2014-07-10

KONDO Rieko et al. (JP)

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