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Dispersants made from isocyanates and amines

A technology of isocyanate and dispersant, applied in the direction of detergent compounding agent, detergent composition, chemical instruments and methods, etc., can solve the problems of dispersion system damage and failure to form absorption layer, etc.

Active Publication Date: 2021-11-09
HUNTSMAN PETROCHEMICAL LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The surrounding medium in most cases does not form a stable absorption layer, which leads to a breakdown of the dispersion

Method used

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  • Dispersants made from isocyanates and amines
  • Dispersants made from isocyanates and amines
  • Dispersants made from isocyanates and amines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] The preparation of embodiment 1 dispersant of the present invention

[0088] 69.9 grams (0.035 moles, 0.035 equivalents) of polyoxyalkylene monoamine ( L-200 amine) was heated to 50°C and added to a 250ml dry container. Then slowly add 5.0 grams (0.017 moles, 0.35 equivalents) of uretdione group-containing polyisocyanate compound ( 143L polyisocyanate). After all of the polyisocyanate compound had been added, the container was capped and the reaction mixture was allowed to mix for an additional 30 seconds. The container was then placed in an oven at 60°C for a period of time (14 hours).

[0089] Other polyoxyalkylene monoamines and isocyanate compounds are reacted as described above to form further dispersants of the present invention. Table 1 gives the combination of the monoamine and isocyanate compounds and the equivalent ratio of amine to isocyanate for each dispersant. The reaction was verified by measuring the amine number and isocyanate content of the disp...

Embodiment 2

[0093] Application of embodiment 2 dispersants

[0094] Preparation of Aqueous Medium / Dispersion Agent

[0095] An amount of each of the above dispersants was dissolved in an equal amount of water to form a 50wt% / 50wt% composition.

[0096] B. Preparation of Colorants

[0097] Pigment (20wt%), aqueous medium / dispersant A (5wt%) (or 1:10 active dispersant pigment) and additional water (75wt%) were premixed at 3000rpm using an accelerated mixer (FlackTek Speed ​​Mixer) for 30 Second. 40 grams of this mixture were then mixed with 10 grams of 2 mm glass beads and ground for 3 minutes at 3000 rpm. The glass beads are then separated from the colorant.

[0098] C. Preparation of acceptable color paint

[0099] A white primer (PPG Olympic One Interior Semi-gloss Enamel (Base 1-356824)) was mixed with 1% of the blend prepared in A using the speed mixer described above for 3 minutes at 3000 rpm.

[0100] D. Test microfilm

[0101] Color Acceptable Paint C and Colorant B were mixed ...

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PUM

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Abstract

The present disclosure generally relates to a dispersant obtained from the reaction of a liquid isocyanate compound and a polyoxyalkylene amine and its use in dispersing various particulate solids in an aqueous or organic medium.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Patent Application No. 62 / 817,001, filed March 12, 2019, the entire disclosure of which is incorporated herein by reference. [0003] Statement Regarding Federally Sponsored Research or Development [0004] Not applicable. technical field [0005] The present invention mainly relates to: a dispersant obtained by reacting a liquid isocyanate compound and a polyoxyalkylene amine; a method for preparing the dispersant; a composition comprising the dispersant, a particulate solid, and an organic or aqueous medium; Granular solids coated with the dispersant described above. The present invention also provides compositions and coated particulate solids that can be applied with paints, inks, toners, plastic materials, motor oils, concrete, detergents, gypsum wallboard, oil exploration drilling fluids, oil spills, and agricultural active ingredients . Background tec...

Claims

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Application Information

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IPC IPC(8): C09D175/04
CPCC08G18/2865C08G18/5024C08G18/791C08G18/798C08G18/7837C08G18/7671C11D1/44C11D3/3773C11D3/3769C08G18/5021C09D175/04C09D11/38C09D11/03C08G18/10C08G2150/00C08K5/0041C09B67/009
Inventor R·A·小格里格斯比房晓华D·H·钱皮恩
Owner HUNTSMAN PETROCHEMICAL LLC
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