Binder composition and a paint formulation made thereof

Patent metadata

Field	Value
Publication number	US-10590271-B2
Application number	US-201515556302-A
Country	US
Kind code	B2
Filing date	Mar 31, 2015
Priority date	Mar 31, 2015
Publication date	Mar 17, 2020
Grant date	Mar 17, 2020

Abstract

The present invention further provides a binder composition comprising a first binder and a second binder. The first binder comprises, by dry weight based on total dry weight of the binder composition, from 1% to 98% polymer particles, from 0.3% to 20% an anionic polyelectrolyte, and from 0.1% to 20% a colorant; and the second binder comprises, by dry weight based on total dry weight of the binder composition, from 0.5% to 70% a clay, and from 0.03% to 10% a dispersant. It also provides a paint formulation comprising the binder composition.

First claim

What is claimed is:

1. A binder composition comprising a first binder comprising by dry weight based on total dry weight of the first binder,
from 2% to 99% polymer particles,
from 0.4% to 40% an anionic polyelectrolyte, wherein the anionic polyelectrolyte has a weight average molecular weight of from 10 5 to 10 8 , and
from 0.2% to 50% a colorant.

2. The binder composition according to claim 1 wherein the first binder further comprises from 0.2% to 30%, by dry weight based on total dry weight of the first binder, a polysaccharide.

3. The binder composition according to claim 1 wherein the first binder further comprises from 0.15% to 80.5%, by dry weight based on total dry weight of the first binder, pigment particles.

4. The binder composition according to claim 1 wherein the first binder further comprises 0.6% to 50.5%, by dry weight based on total dry weight of the first binder, extender particles.

5. A binder composition comprising a first binder and a second binder, wherein the first binder comprises, by dry weight based on total dry weight of the binder composition,
from 1% to 98% polymer particles,
from 0.3% to 20% an anionic polyelectrolyte, wherein the anionic polyelectrolyte has a weight average molecular weight of from 10 5 to 10 8 , and
from 0.1% to 20% a colorant; and

the second binder comprises, by dry weight based on total dry weight of the binder composition,
from 0.5% to 70% clay, and
from 0.03% to 10% a dispersant.

6. The binder composition according to claim 5 wherein the first binder further comprises from 0.1% to 20%, by dry weight based on total dry weight of the binder composition, a polysaccharide.

7. The binder composition according to claim 5 wherein the first binder further comprises from 1% to 30%, by dry weight based on total dry weight of the binder composition, pigment particles.

8. The binder composition according to claim 5 wherein the first binder further comprises from 0.5% to 50%, by dry weight based on total dry weight of the binder composition, extender particles.

9. The binder composition according to claim 5 wherein the second binder further comprises from 0.1% to 30%, by dry weight based on total dry weight of the binder composition, polymer particles.

10. A paint formulation comprising the binder composition according to claim 5 and a continuous phase comprising from 30% to 99%, by dry weight based on total dry weight of the continuous phase, polymer particles, wherein the dry weight ratio of the continuous phase to the binder composition is from 50:1 to 1:20.

11. The paint formulation according to claim 10 wherein the continuous phase further comprises from 0.5% to 65%, by dry weight based on total dry weight of the continuous phase, extender particles.

Assignees

• Dow Global Technologies Llc
• Rohm & Haas
• Ucar Emulsion Systems Fze

Inventors

• Zhang Shiling
• Zukowski Lukasz
• Wang Yujiang
• Yun Dong
• Li Ling
• Wu Youjun

Classifications

• C09D5/29

  for multicolour effects · CPC title

• C09D133/02

  Homopolymers or copolymers of acids; Metal or ammonium salts thereof · CPC title

• C08L2205/03

  containing three or more polymers in a blend · CPC title

• C09D133/08

  Homopolymers or copolymers of acrylic acid esters · CPC title

• C08L2205/025

  containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure · CPC title