The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 08, 2005
Filed:
Sep. 17, 1999
Greg A. Westbrook, Port Neches, TX (US);
Thomas L. Tattersall, Wilmington, DE (US);
Mark C. Wolff, Edgewood, KY (US);
Greg A. Westbrook, Port Neches, TX (US);
Thomas L. Tattersall, Wilmington, DE (US);
Mark C. Wolff, Edgewood, KY (US);
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
Disclosed are non-flammable, high-solvency compositions having utility as cleaning agents in the electronics and refrigeration industries, and as a medium for mold release agents. The compositions are non-flammable by Flame Extension Test ASTM D-3065 and Flash Point-Tag Closed Cup Test ASTM D-56-82, and have a Kauri Butanol value of at least about 40 by ASTM 1133-94. The compositions comprise the components: a.) trans-1,2-dichloroethylene; and b.) solvent selected from: i.) oxygen-containing solvents selected from alcohols, ketones, esters, siloxanes, and ethers; and ii.) hydrocarbon solvents represented by CHor CH, wherein t is from 4 to 8; and c.) an inerting agent selected from: i.) hydrofluorocarbon inerting agents represented by the formula CHF, wherein x is from 3 to 8, y is from 1 to 4, and the mole ratio of F/H in the hydrofluorocarbon inerting agent is greater than 1.6; ii.) hydrofluorocarbon ether inerting agents represented by the formula CFOCH, wherein r and s are independently selected from 1 to 6, and r is greater than or equal to 2s; and iii.) hydrochlorofluorocarbon inerting agents represented by the formulae CHClF, CHClF, and CHClF.