US 12,110,420 B2
Paint remover composition and method of making
Jonathan P. Breon, Memphis, TN (US); Timothy G. Teague, Nesbit, MS (US); and Dennis Earl Shireman, Marion, AR (US)
Assigned to W. M. BARR & COMPANY, INC, Memphis, TN (US)
Filed by W. M. BARR & COMPANY, INC, Memphis, TN (US)
Filed on Oct. 31, 2023, as Appl. No. 18/385,600.
Application 18/385,600 is a continuation of application No. 17/339,446, filed on Jun. 4, 2021, granted, now 11,827,812, issued on Nov. 28, 2023.
Application 17/339,446 is a continuation in part of application No. 16/011,164, filed on Jun. 18, 2018, granted, now 11,708,502, issued on Jul. 25, 2023.
Claims priority of provisional application 62/522,417, filed on Jun. 20, 2017.
Prior Publication US 2024/0076510 A1, Mar. 7, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. C09D 9/00 (2006.01)
CPC C09D 9/005 (2013.01) 20 Claims
 
1. A paint remover composition comprising:
tetrahydrofuran (THF) in an amount of 50% by wt. to 90% by wt based on the total weight of the composition;
an amine with a molar volume of <100 cm3/mol,
a solvent that renders the composition miscible, wherein the solvent comprises at least one of methanol, ethanol, ethyleneglycol monobutyl ether, or a combination thereof, and
water in an amount up to 20% by wt. based on the weight of the composition,
wherein the composition is miscible.