Low-VOC compositions and methods of making and using the same

Patent metadata

Field	Value
Publication number	US-9796868-B2
Application number	US-201514625367-A
Country	US
Kind code	B2
Filing date	Feb 18, 2015
Priority date	Feb 26, 2014
Publication date	Oct 24, 2017
Grant date	Oct 24, 2017

Abstract

Compositions having low quantities of volatile organic compounds (VOCs) and uses thereof are generally disclosed. In some embodiments, the compositions are aqueous compositions, such as aqueous suspensions, suitable for use as coating or paint compositions. In some embodiments, the compositions are aqueous compositions that include, among other components, a film-forming polymer and a coalescing aid. In some embodiments, the coalescing aids are derived from a renewable feedstock. Methods and systems for making such compositions are also disclosed. Novel coalescing aids are also disclosed.

First claim

What is claimed is:

1. A coating or paint composition comprising:
an aqueous carrier;
a film-forming polymer; and
a coalescing aid, which comprises one or more compounds of formula (I):

wherein:
R 1 is —(CH 2 ) 7 —CH═CH—CH 2 —CH═CH 2 , —(CH 2 ) 7 —CH═CH—CH 2 —CH═CH—CH 3 , —(CH 2 ) 7 —CH═CH—CH 2 —CH═CH—CH 2 —CH 3 , or —(CH 2 ) 7 —CH═CH—CH 2 —CH═CH—CH 2 —CH 2 —CH 3 ; and
R 2 is C 1-6 alkyl, which is optionally substituted one or more times by —OH.

2. The composition of claim 1 , wherein R 1 is —(CH 2 ) 7 —CH═CH—CH 2 —CH═CH 2 .

3. The composition of claim 1 , wherein R 2 is methyl, ethyl, isopropyl, propyl, butyl, isobutyl, sec-butyl, or tert-butyl.

4. The composition of claim 1 , wherein R 2 is —(CH 2 ) 2 —OH, —CH 2 —CH(OH)—CH 3 , or —(CH 2 ) 3 —OH.

5. The composition of claim 1 , wherein the film-forming polymer is a natural latex, a synthetic latex, or a mixture thereof.

6. The composition of claim 5 , where the film-forming polymer is a synthetic latex.

7. The composition of claim 6 , where the synthetic latex is an acrylic polymer, polyvinyl acetate, polyvinyl chloride, styrene-butadiene rubber, acrylonitrile-butadiene rubber, or a mixture thereof.

8. The composition of claim 1 , further comprising a pigment.

9. The composition of claim 1 , further comprising a thickener, a rheology modifier, a surfactant, a defoamer, a co-solvent, or any mixtures thereof.

10. The composition of claim 1 , further comprising a biocide.

11. The composition of claim 1 , wherein the composition is an emulsion.

12. A method of reducing the minimum film-forming temperature (MFFT) of a polymer, comprising:
providing a polymer composition, which comprises a film-forming polymer; and
contacting the firm-forming polymer with a coalescing aid, which comprises one or more compounds of formula (I):

wherein:
R 1 is —(CH 2 ) 7 —CH═CH—CH 2 —CH═CH 2 , —(CH 2 ) 7 —CH═CH—CH 2 —CH═CH—CH 3 , —(CH 2 ) 7 —CH═CH—CH 2 —CH═CH—CH 2 —CH 3 , or —(CH 2 ) 7 —CH═CH—CH 2 —CH═CH—CH 2 —CH 2 —CH 3 ; and
R 2 is C 1-6 alkyl, which is optionally substituted one or more times by —OH.

13. A method of painting or coating a surface, comprising:
providing a surface to be coated or painted; and
applying to the surface a composition of claim 1 .

Assignees

• Elevance Renewable Sciences

Inventors

• Bertin Paul A

Classifications

• C09D7/63

  organic · CPC title

• C09D4/06

  {Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond} in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00 · CPC title

• C09D191/00

  Coating compositions based on oils, fats or waxes; Coating compositions based on derivatives thereof (polishing compositions, ski waxes C09G) · CPC title

• C09D109/06

  Copolymers with styrene · CPC title

• C09D133/08 Primary

  Homopolymers or copolymers of acrylic acid esters · CPC title