Bio-polyurethane resin, bio-polyurethane resin solution and printing ink

A technology of polyurethane resin and bio-polyester, applied in the field of bio-polyurethane resin, can solve the problems of insufficient biomass degree and insufficient printing adaptability and functionality, and achieve excellent practical performance, excellent adhesion performance, and excellent dispersibility. Effect

Active Publication Date: 2021-11-16
DAINICHISEIKA COLOR & CHEM MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this regard, conventional printing inks that consider ecology have traditionally been insufficient in terms of adhesiveness, pigment dispersibility, and printing adaptability. "degree" is not enough

Method used

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  • Bio-polyurethane resin, bio-polyurethane resin solution and printing ink
  • Bio-polyurethane resin, bio-polyurethane resin solution and printing ink
  • Bio-polyurethane resin, bio-polyurethane resin solution and printing ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0097] First, polyester polyol was prepared as follows. As a polyfunctional carboxylic acid component (hereinafter referred to as a dicarboxylic acid component), dimer acid containing plant-derived components (dimer purity: 98%) / succinic acid containing plant-derived components = 90 / 10 (molar ratio) was used , as a polyfunctional alcohol component (hereinafter referred to as a diol component), 1,3-propanediol containing a plant-derived component was used. And, by using these components in appropriate amounts for the target molecular weight and polymerizing, the hydroxyl value shown in Table 1-1 was 37.3 mgKOH / g, the acid value was 0.3 mgKOH / g, the number average molecular weight was 3000, and it contained 100% plant origin. Composition of polyester diol PE(1).

[0098] Next, 500 parts of polyester diol PE (1) obtained above and 66.4 parts of isophorone diisocyanate (hereinafter abbreviated as IPDI) as an organic diisocyanate were put into the reaction vessel, and reacted at 1...

Embodiment 2

[0101] A polyurethane resin solution was prepared basically in the same manner as in Example 1. As the dicarboxylic acid component, dimer acid containing plant-derived components (dimer purity: 98%) / succinic acid containing plant-derived components = 60 / 40 (molar ratio), and as the diol component, used Ingredient 1,3-propanediol. Then, these components were used in appropriate amounts and polymerized to obtain a polymer having a hydroxyl value of 56.0 mgKOH / g, an acid value of 0.3 mgKOH / g, a number average molecular weight of 2000, and 100% of plant-derived components, as shown in Table 1-1. Ester diol PE (2).

[0102] Next, 500 parts of the polyester diol PE (2) obtained above and 88.6 parts of IPDI were put into the reaction container, and reacted at 100° C. for 5 hours under a nitrogen stream, and the NCO group content was obtained as shown in Table 2-1. 2.03% urethane prepolymer. The obtained urethane prepolymer was dissolved in 196.2 parts of ethyl acetate to prepare a...

Embodiment 3

[0105] A polyurethane resin solution was prepared basically in the same manner as in Example 1. As a dicarboxylic acid component, dimer acid (dimer purity: 98%) containing plant-derived components / succinic acid containing plant-derived components = 2 / 98 (molar ratio) was used, and as a diol component, a plant-derived component was used Ingredient 1,3-propanediol. Then, these components were used in appropriate amounts and polymerized to obtain a polymer having a hydroxyl value of 37.3 mgKOH / g, an acid value of 0.3 mgKOH / g, a number average molecular weight of 3000, and 100% of plant-derived components shown in Table 1-1. Ester diol PE (3).

[0106] Next, 500 parts of the polyester diol PE (3) and 59.0 parts of IPDI obtained above were put into the reaction container, and reacted at 100° C. for 5 hours under a nitrogen stream, and the NCO group content was obtained as shown in Table 2-1. 1.42% urethane prepolymer. The obtained urethane prepolymer was dissolved in 186.4 parts...

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Abstract

The present invention provides a polyurethane resin that exhibits excellent adhesive performance especially to biomass plastic substrates, has excellent dispersibility of pigments contained in a high concentration, is useful as a binder for printing inks, and has high biomass. Its printing ink. A biourethane resin obtained by reacting a biopolyol (A) with an isocyanate (B), wherein (A) is a mixture of a plant-derived diol component (a) and a dicarboxylic acid component (b) The polymer is biopolyester polyol, (a) comprising ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, 1,4-butanediol, 1,10-decanediol and di One or more kinds of polyglycols, (b) containing plant-derived succinic acid and other dicarboxylic acids, plant-derived succinic acid / other carboxylic acids = 98 / 2 to 5 / 95, relative to 100% by mass of biourethane resin , having a plant-derived ingredient content of 35% or more; and a printing ink.

Description

technical field [0001] The invention relates to biological polyurethane resin, polyurethane resin solution and printing ink which use biomass as raw material. Specifically, it relates to a technique for providing a bio-urethane resin with high biomass and a liquid bio-urethane resin that can be suitably used as a binder for organic solvent-type printing inks. As its preferred form, it relates to the following technology: From the viewpoint of dealing with environmental problems such as odor and safety, by using an organic solvent mainly composed of an ester solvent and an alcohol solvent as an organic solvent constituting a resin solution, it is possible to To provide a printing ink that is a so-called toluene-free solvent system or a toluene-free MEK (methyl ethyl ketone) solvent system that has excellent adhesive performance, pigment dispersibility, printability, and high biomass. In the present invention, not only polyurethanes having repeating urethane bonds obtained by t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/06C08G18/68C08G63/553C09D11/102
CPCC08G63/553C09D11/102C08G18/4238C08G18/3234C08G18/282C08G18/10C09D11/037C08G18/68C08G18/757C08L75/06
Inventor 美细津岩雄佐藤浩正梅津基昭后藤弘树夏井智之
Owner DAINICHISEIKA COLOR & CHEM MFG CO LTD
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