Title:
ALCOHOL SOLUBLE BINDER FOR PRINTING INK
Document Type and Number:
Japanese Patent JP2016089086
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a binder for printing ink soluble in alcohol without reducing physical properties such as adhesiveness with a plastic film and a printing ink and blocking resistance when used as the binder for printing ink.SOLUTION: There is provided an alcohol soluble binder for printing ink containing an urethane prepolymer by reacting a high polymer polyol and a polyisocyanate compound under solventless system and a polyurethane resin obtained by reacting a chain extender under an alcohol solvent, where the urethane prepolymer is manufactured by reacting the high polymer polyol and polyisocyanate with a molar ratio of an isocyanate group (NCO) and a hydroxyl group (OH) in a range of NCO/OH=2.4 to 3.2, amine value of the polyurethane resin is 5.0 to 15.0 mgKOH/g and the alcohol solvent has the ethanol content of 60 mass% or more.SELECTED DRAWING: None
Inventors:
SUGANO HIDEJI
SHIRAI KAZUAKI
OI HIDEKO
SHIRAI KAZUAKI
OI HIDEKO
Application Number:
JP2014226962A
Publication Date:
May 23, 2016
Filing Date:
November 07, 2014
Export Citation:
Assignee:
HITACHI CHEMICAL CO LTD
International Classes:
C09D11/10; C08G18/10; C08G18/65
Domestic Patent References:
| JP2013133461A | 2013-07-08 | |||
| JP2004307785A | 2004-11-04 |
Foreign References:
| WO2012091050A1 | 2012-07-05 | |||
| WO2012008339A1 | 2012-01-19 |
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