Process for tailoring water-borne coating compositions
First Claim
1. A process for tailoring rheology of an aqueous or water-borne coating composition comprising the steps of:
- a) obtaining an aqueous or water-borne coating composition;
b) obtaining a system comprisingi. an amount of a first hydrophobically modified polymer comprising a polymer backbone modified with a first hydrophobe andii. an amount of a second hydrophobically modified polymer comprising the first hydrophobically modified polymer further modified with a second hydrophobewherein the first hydrophobe and the second hydrophobe are different from each other;
c) selecting the amount of the first hydrophobically modified polymer relative to the amount of the second hydrophobically modified polymer to tailor the rheology of the aqueous or water-borne coating composition; and
d) combining the aqueous or water-borne coating composition with an amount of the system to obtain an aqueous or water-borne coating composition at 25°
C. with a Brookfield viscosity of between about 1000-7000 cps at 5 sec−
1 or Stormer viscosity of about 80-130 KU and high-shear viscosity (ICI viscosity) of about 0.1-3.8 poise at 10,000 sec−
1.
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Accused Products
Abstract
The present invention relates to a process for tailoring theology of an aqueous or water-borne coating composition using a system comprising an amount of a first hydrophobically modified polymer comprising a polymer backbone modified with a first hydrophobe and an amount of a second hydrophobically modified polymer comprising the first hydrophobically modified polymer further modified with a second hydrophobe. By incorporating a system comprising at least two hydrophobically modified polymers into water-borne coatings where the amount of all of the hydrophobically modified polymers are able to be independently adjusted, the resultant coatings may be tailored to attain a desired combination of Stormer or Brookfield viscosity and ICI viscosity.
101 Citations
29 Claims
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1. A process for tailoring rheology of an aqueous or water-borne coating composition comprising the steps of:
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a) obtaining an aqueous or water-borne coating composition; b) obtaining a system comprising i. an amount of a first hydrophobically modified polymer comprising a polymer backbone modified with a first hydrophobe and ii. an amount of a second hydrophobically modified polymer comprising the first hydrophobically modified polymer further modified with a second hydrophobe wherein the first hydrophobe and the second hydrophobe are different from each other; c) selecting the amount of the first hydrophobically modified polymer relative to the amount of the second hydrophobically modified polymer to tailor the rheology of the aqueous or water-borne coating composition; and d) combining the aqueous or water-borne coating composition with an amount of the system to obtain an aqueous or water-borne coating composition at 25°
C. with a Brookfield viscosity of between about 1000-7000 cps at 5 sec−
1 or Stormer viscosity of about 80-130 KU and high-shear viscosity (ICI viscosity) of about 0.1-3.8 poise at 10,000 sec−
1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An aqueous or water-borne coating composition comprising:
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i.) a first hydrophobically modified polymer comprising a polymer backbone modified with a first hydrophobe and, ii,) a second hydrophobically modified polymer comprising the first hydrophobically modified polymer further modified with a second hydrophobe; a latex; and
water,wherein the aqueous or water-borne coating composition, at 25°
C., has a Brookfield viscosity of between about 1000-7000 cps at 5 sec−
1 or Stormer viscosity of about 80-130 KU and high-shear viscosity (ICI viscosity) of about 0.1-3.8 poise at 10,000 sec−
1 and wherein the first hydrophobically modified polymer comprises from about 0.05 to 10 wt % of the aqueous or water-borne coating composition and the a second hydrophobically modified polymer comprises from about 0.01 to 8 wt % of the aqueous or water-borne coating composition. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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Specification