Polymeric dispersants and dispersions containing same
First Claim
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1. A polyalkyl benzimide polymeric dispersant consisting of the reaction product of a polyisobutylene amine with 1,2,4-benzenetricarboxylic anhydride, wherein the chain length of the polyisobutylene amine is such as to make the reaction product compatible with a non-polar colorant dispersion.
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Abstract
A polyalkyl benzimide polymeric dispersant produced from the reaction product of polyisobutylene amine with 1,2,4-benzenetricarboxylic anhydride, and method of preparing same and colorant dispersions containing dispersant.
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Citations
23 Claims
- 1. A polyalkyl benzimide polymeric dispersant consisting of the reaction product of a polyisobutylene amine with 1,2,4-benzenetricarboxylic anhydride, wherein the chain length of the polyisobutylene amine is such as to make the reaction product compatible with a non-polar colorant dispersion.
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13. A polyalkyl benzimide polymeric dispersant consisting of the liquid reaction product of a polyisobutylene amine with 1,2,4-benzenetricarboxylic anhydride, wherein the chain length of the polyisobutylene amine is such that a non-polar colorant dispersion in which the colorant concentration is about 40 to 90% and the reaction product concentration is about 1 to 15% has a viscosity of less than about 150 Pa·
- s and a relative interfacial tension drop of less than about 1.5.
- View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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