Low environmental impact, non-flammable aerosol coatings

Patent metadata

Field	Value
Publication number	US-12240994-B2
Application number	US-202017762188-A
Country	US
Kind code	B2
Filing date	Sep 23, 2020
Priority date	Sep 23, 2019
Publication date	Mar 4, 2025
Grant date	Mar 4, 2025

Abstract

An aerosol coating composition contains at least one film-forming resin, trans-1-chloro-3,3,3-trifluoropropene and at least one propellant such as CO 2 . The aerosol coating composition is non-flammable and compatible with polyethylene terephthalate. The film-forming resin may be acrylic resins, alkyd resins or mixtures thereof. A glycol ether solvent may be present. The coating composition may have low toxicity, be non-ozone depleting, have low or no VOC, be low in maximum incremental reactivity and/or be low in global warming potential. A method of coating a substrate with the aerosol coating composition comprises providing at least one film-forming resin selected from the group consisting of acrylic resins, alkyd resins, and mixtures thereof and trans-1-chloro-trifluoropropene in a container comprising polyethylene terephthalate, which is charged with a propellant comprising carbon dioxide. The aerosol coating composition is non-flammable. The composition is applied to a substrate and allowed to dry.

First claim

What is claimed is:

1. An aerosol coating composition comprising:
at least one film-forming resin selected from the group consisting of acrylic resins, alkyd resins, and mixtures thereof;
trans-1-chloro-3,3,3-trifluoropropene; and
at least one propellant, wherein the propellant comprises carbon dioxide;
wherein the aerosol coating composition comprises less than 1 percent GHS-flammable solvents;
and further wherein the aerosol coating composition forms a film without foam formation upon dispensing.

2. The aerosol coating composition of claim 1 , wherein the aerosol coating composition comprises less than 0.5 percent GHS-flammable solvents.

3. The aerosol coating composition of claim 1 , wherein the at least one film forming resin comprises an acrylic resin.

4. The aerosol coating composition of claim 1 , wherein the at least one film forming resin consists of an acrylic resin.

5. The aerosol coating composition of claim 1 , wherein the propellant consists of carbon dioxide.

6. The aerosol coating composition of claim 3 , wherein the at least one film forming resin additionally comprises an alkyd resin.

7. The aerosol coating composition of claim 1 , wherein the at least one film forming resin comprises an alkyd resin.

8. The aerosol coating composition of claim 7 , additionally comprising a glycol ether solvent.

9. The aerosol coating composition of claim 8 , wherein the glycol ether is selected from the group consisting of alkyl glycol ethers and aromatic glycol ethers.

10. The aerosol coating composition of claim 8 , wherein the glycol ether is selected from the group consisting of diethylene glycol monomethyl ether, dipropylene glycol monobutyl ether, propylene glycol phenyl ether, dipropylene glycol n-butyl ether, and dipropylene glycol n-propyl ether.

11. The aerosol coating composition of claim 8 , wherein the composition is contained in a container comprising polyethylene terephthalate.

12. The aerosol coating composition of claim 10 , wherein aerosol coating composition comprises one or more properties selected from the group consisting of having an ozone depleting potential of 0, being free of VOC, having a maximum incremental reactivity of 0.5 or less, and having a global warming potential of less than 1.

13. A method of coating a substrate with a coating composition, the method comprising:
providing an aerosol coating composition, the aerosol coating composition comprising at least one film-forming resin selected from the group consisting of acrylic resins, alkyd resins, and mixtures thereof, and trans-1-chloro-3,3,3-trifluoropropene,
wherein the aerosol coating composition comprises less than 1 percent GHS-flammable solvents, and
wherein the aerosol coating composition is provided in a container comprising polyethylene terephthalate, and
further wherein the container is charged with a propellant comprising carbon dioxide; applying the aerosol coating composition to a substrate, wherein the applied aerosol coating composition does not form a foam;

and allowing the applied aerosol coating composition to dry.

14. The method of claim 13 , wherein the aerosol coating composition comprises less than 0.5 percent GHS-flammable solvents.

15. The method of claim 13 , wherein the at least one film forming resin comprises an acrylic resin.

16. The method of claim 13 , wherein the at least one film forming resin consists of an acrylic resin.

17. The method of claim 13 , wherein the propellant consists of carbon dioxide.

18. The method of claim 15 , wherein the at least one film forming resin additionally comprises an alkyd resin.

19. The method of claim 13 , wherein the at least one film forming resin comprises an alkyd resin.

20. The method of claim 19 , wherein the aerosol coating composition additionally comprises a glycol ether.

21. The method of claim 20 , wherein the glycol ether is selected from the group consisting of alkyl glycol ethers and aromatic glycol ethers.

22. The method of claim 20 , wherein the glycol ether is selected from the group consisting of diethylene glycol monomethyl ether, dipropylene glycol monobutyl ether, propylene glycol phenyl ether, dipropylene glycol n-butyl ether, and dipropylene glycol n-propyl ether.

23. The method of claim 13 , wherein the aerosol coating composition comprises one or more properties selected from the group consisting of having an ozone depleting potential of 0, being free of VOC, having a maximum incremental reactivity of 0.5 or less, and having a global warming potential of less than 1.

24. The method of claim 15 , wherein the aerosol coating composition additionally comprises a glycol ether.

25. The aerosol coating composition of claim 3 , additionally comprising a glycol ether solvent.

Assignees

• Swimc Llc

Inventors

• Mccarthy Joseph F

Classifications

• C09D167/08

  Polyesters modified with higher fatty oils or their acids, or with natural resins or resin acids · CPC title

• C09D133/10

  Homopolymers or copolymers of methacrylic acid esters · CPC title

• B05D1/02

  performed by spraying · CPC title

• C09D7/20

  Diluents or solvents · CPC title

• C09D5/021 Primary

  Aerosols (aerosol compositions C09K3/30) · CPC title