Dispersant and compositions thereof
AssigneeThe Lubrizol Corporation
InventorsDean Thetford, Neil L. Simpson
Life of this patent
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Abstract
The present invention provides a dispersant and compositions thereof. The dispersant is a residue of a non-aromatic hydrocarbyl substituted carboxylic acid containing three or more acid groups (A), wherein the dispersant may be represented by the Formula and salts thereof: [U—(Y)x-T-N(R1)c-A]d-Z(Q1)j-Wc, wherein the variables are defined herein.
Claims11
A composition comprising a particulate solid, an organic medium and/or water and a dispersant, wherein the dispersant is represented by the Formula and salts thereof:
- [U—(Y)x-T-N(R1)c-A]d-Z(Q1)j-We (Formula 1)
- wherein
- j is zero, or an integer from 1 to 2000;
- d is from 2 to 3000;
- c is 0 or 1;
- x is from 2 to 90;
- U is R2—O—, —NR3R4, or R5—NR6-T-O—;
- R2 is independently H or C1-30-optionally substituted hydrocarbyl groups or hydrocarbonyl (acyl) groups;
- R1, R3, R4, R5 and R6 are independently H or C1-30-optionally substituted hydrocarbyl groups or hydrocarbonyl groups, or the residue of an epoxide, or the residue of an optionally substituted (meth) acrylic ester or amide group;
- Y is C2-4-alkyleneoxy;
- T is C2-4 alkylene;
- A is the residue of a non-aromatic hydrocarbyl substituted carboxylic acid containing three or more acid groups;
- Z is the residue of a polyamine and/or polyimine;
- W comprises the residue of an oxide, urea or dibasic acid or anhydride thereof;
- Q1 is independently a polyester and/or polyamide chain of formula R′-G-(M)m- or a polyalkoxylate of formula U—(Y)x-T-N(R1)c-D, or mixtures thereof;
- D is a residue of a dibasic acid or anhydride thereof;
- m is a positive integer from 2 to 100;
- R′ is hydrogen or C1-50-optionally substituted hydrocarbyl group;
- G is a divalent bond or carbonyl;
- M is the residue of one or more amino carboxylic acids, one or more hydroxy carboxylic acids, one or more lactones of hydroxycarboxylic acids, or mixtures thereof;
- and
- e is 0 to v, wherein v represents the maximum available number of amino and/or imino groups in Z which does not carry the groups U—(Y)x-T-N(R1)c-A- or Q1.
A dispersant comprising a residue of a non-aromatic hydrocarbyl substituted carboxylic acid containing three or more acid groups (A), wherein the dispersant is represented by the Formula and salts thereof:
- [U—(Y)x-T-N(R1)c-A]d-Z(Q1)j-We (Formula 1)
- wherein
- j is zero, or an integer from 1 to 2000;
- d is from 2 to 3000;
- c is 0 or 1;
- x is from 2 to 90;
- U is R2—O—, —NR3R4, or R5—NR6-T-O—;
- R2 is independently H or C1-30-optionally substituted hydrocarbyl groups or hydrocarbonyl (acyl) groups;
- R1, R3, R4, R5 and R6 are independently H or C1-30-optionally substituted hydrocarbyl groups or hydrocarbonyl groups, or the residue of an epoxide, or the residue of an optionally substituted (meth) acrylic ester or amide group;
- Y is C2-4-alkyleneoxy;
- T is C2-4 alkylene;
- A is the residue of a non-aromatic hydrocarbyl substituted carboxylic acid containing three or more acid groups;
- Z is the residue of a polyamine and/or polyimine;
- W comprises the residue of an oxide, urea or dibasic acid or anhydride thereof;
- Q1 is independently a polyester and/or polyamide chain of formula R′-G-(M)m- or a polyalkoxylate of formula U—(Y)x-T-N(R1)c-D, or mixtures thereof;
- D is a residue of a dibasic acid or anhydride thereof;
- m is a positive integer from 2 to 100;
- R′ is hydrogen or C1-50-optionally substituted hydrocarbyl group;
- G is a divalent bond or carbonyl;
- M is the residue of one or more amino carboxylic acids, one or more hydroxy carboxylic acids, one or more lactones of hydroxycarboxylic acids, or mixtures thereof;
- and
- e is 0 to v, wherein v represents the maximum available number of amino and/or imino groups in Z which does not carry the groups U—(Y)x-T-N(R1)c-A- or Q1.
Dependencies are inferred from the claim text.