IP Library Granted Patent US 12,617,953
Granted Patent B2
US 12,617,953 · App. 17/732,039 · Granted May 5, 2026

Paint remover having reduced flammability

Inventors: Tim Teague (Nesbit, MS); Matthew Michael Petkus (Memphis, TN); Dennis Earl Shireman (Marion, AR); Alana Byrd (Memphis, TN)
Assignee: W.M. BARR & COMPANY, INC.
C09D9/005C09D9/04
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Quick Facts
Patent No.
US 12,617,953
App. No.
17/732,039
Granted
May 5, 2026
Kind
B2
Abstract

A composition comprises dimethyl carbonate (DMC) and dimethyl sulfoxide (DMSO) and has a flash point of 70° F. or greater. The composition has a total VOC content defined by the Environmental Protection Agency (EPA) of 50 weight percent (%) or less. The composition removes or strips paint in a period of time of two hours or less. The composition may further comprises one or more corrosion inhibitors.

Claims (23)

1 . A paint remover composition comprising:

10 weight percent to 49 weight percent dimethyl carbonate (DMC),

dimethyl sulfoxide (DMSO) is present in the paint remover composition, and is included at a concentration of 24 weight percent or less in the paint remover composition,

12 weight percent to 25 weight percent xylene or xylene containing mixture of isomers and ethyl benzene, and

0.25 weight percent to 5 weight percent of a corrosion inhibitor comprising oleic acid, morpholine, or a combination thereof,

wherein the composition removes paint and has a flash point between 70 degrees Fahrenheit and 110 degrees Fahrenheit, and

wherein the ratio of DMC to xylene is from 1:2.5 to 4:1.

2 . The paint remover composition according to claim 1 , wherein the corrosion inhibitor provides corrosion resistance to an internal surface of a metal container containing the composition.

3 . The paint remover composition according to claim 1 , wherein the corrosion inhibitor provides corrosion resistance to an external surface of a metal container containing the paint remover composition.

4 . The paint remover composition according to claim 1 , wherein the corrosion inhibitor further comprises triethanol amine, monoethanol amine, and a combination thereof.

5 . The paint remover composition according to claim 1 , wherein the corrosion inhibitor further comprises a nitrate, phosphate, borate, or a combination thereof.

6 . The paint remover composition according to claim 1 , wherein the corrosion inhibitor is a soap compound.

7 . The paint remover composition according to claim 6 , wherein the soap compound is selected from the group consisting of ammonium 9-octadecenoate, monoethanolamine 9-octadecenoate, diglycolamine 9-octadecenoate, morpholine 9-octadecenoate, and a combination thereof.

8 . A method of using a composition for paint removal, the method comprising:

providing paint remover composition of claim 1 , and

removing paint from a painted surface with the composition.

9 . The method according to claim 8 , wherein removal of paint occurs in a time period of two hours or less.

10 . The method of using according to claim 8 , wherein the paint remover composition further comprises another solvent or solvent blend.

11 . The method of using according to claim 10 , wherein the solvent or solvent blend is selected from the group consisting of an aliphatic solvent, aromatic solvent, aromatic alcohol, glycol ether, glycol ether ester or esters, ether, and a combination thereof.

12 . The method of using according to claim 10 , wherein the solvent or solvent blend is selected from the group consisting of an aliphatic solvent, mineral spirits, toluene, xylene or xylene containing mixture of isomers and ethyl benzene, aromatic solvent, alkyl benzene derivatives, benzyl alcohol, 2-butoxyethanol, diethylene glycol monobutyl ether acetate, propylene carbonate, tetrahydrofuran (THF), and a combination(s) thereof.

13 . The method of using according to claim 8 , wherein the paint remover composition further comprises water.

14 . The method of using according to claim 8 , wherein the paint remover composition further comprises an additive selected from the group consisting of a surfactant, an ether containing compound, a dye, a thickener, a fragrance, a wax, and a combination thereof.

15 . The method of using according to claim 8 , wherein the paint remover composition has a total VOC content of 50 weight percent (%) or less based on the weight of the total composition.

Assignments (2)
SECURITY INTEREST Recorded Dec 10, 2025
From: W.M. BARR & COMPANY, INC.
To: FIFTH THIRD BANK, NATIONAL ASSOCIATION, AS AGENT
Reel/Frame 073906/0028 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 22, 2022
From: TEAGUE, TIM; PETKUS, MATTHEW MICHAEL; SHIREMAN, DENNIS EARL; BYRD, ALANA
To: W.M. BARR & COMPANY, INC.
Reel/Frame 061507/0647 →