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US 2002/0161103 A1Published application
Method of improving viscosity stability upon addition of an aqueous tinting composition
AssigneeRohm and Haas Company
InventorsJerome Michael Harris, Henry Jude Eichman, Homayoun Jamasbi
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Abstract
An aqueous tinting composition containing a pigment and a select dispersing resin is disclosed. In addition, a method of improving the viscosity stability of an aqueous coating composition upon the addition of the aqueous tinting composition containing a pigment and a select dispersing resin is disclosed.
Claims10
A method of improving the viscosity stability of an aqueous coating composition upon the addition of an aqueous tinting composition, comprising the steps of:
- a) providing an aqueous base paint comprising:
- i) at least one polymer binder,
- iii) at least one rheology modifier;
- and
- b) adding to said aqueous base paint, said aqueous tinting composition comprising:
- i) at least one pigment;
- and
- ii) at least one select dispersing resin having a Hansch parameter in the range of 2.1 to 6 and an acid number in the range of 65 to 150.
5 more elements
An aqueous tinting composition comprising:
- a) from 2 to 70 weight % of at least one pigment;
- and
- b) from 0.1 to 40 weight % of at least one select dispersing resin having a Hansch parameter in the range of 2.1 to 6 and an acid number in the range of 65 to 150;
- based on the weight of said aqueous tinting composition.
1 more element
Dependencies are inferred from the claim text.