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Nonaqueous dispersant and nonaqueous dispersion composition

A non-aqueous dispersant and carbon number technology, which is applied in the field of non-aqueous dispersion compositions, can solve the problems that the effect of the composition is not completely satisfactory, and the non-aqueous dispersion composition cannot fully meet the effect, and achieve excellent dispersion The effect of stability

Active Publication Date: 2016-08-17
NIPPON OIL & FATS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above problems, in Patent Document 1, an esterified product of polyoxyethylene monophenyl ether and cyclic carboxylic acid is proposed, but it cannot be used for non-aqueous dispersion compositions containing fine particle dispersions. Fully satisfy the effect
In addition, in Patent Document 2, esterified products of polyoxypropylene monomethacrylate and trimellitic anhydride having high lipophilicity were respectively proposed, but the effect on the composition was not entirely satisfactory.

Method used

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  • Nonaqueous dispersant and nonaqueous dispersion composition
  • Nonaqueous dispersant and nonaqueous dispersion composition
  • Nonaqueous dispersant and nonaqueous dispersion composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0078] Next, the present invention will be described in further detail through examples and comparative examples.

Synthetic example 1

[0079] (Synthesis example 1: Synthesis of polyether ester compound 1)

[0080]Add 288g (2mol) 3,5,5- Trimethyl-1-hexanol (trade name: NONANOL, manufactured by KHneochem Co., Ltd.) and 2 g of potassium hydroxide were heated up to 120°C while stirring after nitrogen substitution. Under the conditions of 120° C. and 0.05 to 0.50 MPa (gauge pressure) under stirring, 705 g (16 mol) of ethylene oxide was added under pressure with nitrogen from a separately prepared pressure vessel through a gas blowing tube. After the addition was completed, it was reacted to a constant internal pressure under the same conditions. Then, in the method, 349 g (6 mol) of propylene oxide was added, and after the addition was completed, it was reacted to a constant internal pressure under the same conditions. Then, the reactant was taken out from the pressure vessel, neutralized to pH 6-7 with hydrochloric acid, and subjected to a reduced-pressure treatment at 100° C. for 1 hour to remove contained wat...

Embodiment 1~5、 comparative example 1~3

[0090] Using polyether ester compounds 1 to 8 as dispersants, non-aqueous dispersion compositions were prepared in the following manner.

[0091] In a 50mL threaded tube, weigh 20.0g of barium titanate powder (average particle size: 0.05μm, measured by electron microscopy using SEM), 5.0g of propylene glycol monomethyl ether acetate, and 1.4g of a dispersant, and use a rotary The revolving mixer was used to stir for 5 minutes to perform pre-dispersion. Then, using 0.5 mm zirconia beads, dispersion was carried out with a bead mill for 4 hours to obtain a slurry-like non-aqueous dispersion composition. In addition, the SP value of propylene glycol monomethyl ether acetate is 8.7 (cal / cm 3 ) 1 / 2 .

[0092] The non-aqueous dispersion compositions obtained using the polyether ester compounds 1-5 were used as Examples 1-5, and the non-aqueous dispersion compositions obtained using the polyether ester compounds 6-8 were referred to as Comparative Examples 1-3.

[0093] (dispersio...

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Abstract

The invention provides a non-aqueous dispersant allowing particle dispersoid to disperse into the non-aqueous solvent with high concentration, and excellent dispersion stability can be given to the particle dispersoid; the non-aqueous dispersant complies with the formula (1)(see description), wherein R refers to a linear chain or linear chain alkyl with 1-22 carbon atoms, A1O refers to oxygen ethylidene, and m is 1-30; A2O refers to oxygen alkylene with 3-4 carbon atoms, wherein n is 1-30; the following relation is complied with: 0.1<=m / n<=10 and 5<=m+n<=40, wherein a refers to aromatic nucleus number (1-2), and M refers to hydrogen atom, ammonio or alkanol ammonio.

Description

technical field [0001] The invention relates to a non-aqueous dispersant and a non-aqueous dispersion composition containing the non-aqueous dispersant. The non-aqueous dispersant can be used for dispersing dispersions such as organic or inorganic powders in non-aqueous solvents. More specifically, the present invention relates to a non-aqueous dispersant and a non-aqueous dispersion composition containing the non-aqueous dispersant, which can disperse a dispersion in a non-aqueous dispersant at a high concentration with a small amount of addition. It also imparts excellent dispersion stability in aqueous solvents. Background technique [0002] A nonaqueous dispersion composition obtained by dispersing a dispersion such as an organic powder or an inorganic powder in a nonaqueous solvent is used in various industrial fields. Examples of organic powders include organic pigments, and non-aqueous dispersion compositions containing organic pigments are used in paints, printing i...

Claims

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Application Information

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IPC IPC(8): C08G65/332C08G65/08C08G65/06B01F17/52C09K23/00C09K23/44C09K23/52
CPCC08G65/06C08G65/08C08G65/3326C09K23/00Y02E60/10
Inventor 小田和裕松井龙也
Owner NIPPON OIL & FATS CO LTD
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