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:
Apr. 19, 1994
Filed:
Aug. 17, 1992
Applicant:
Inventors:
Pierre Barthelemy, Jodoigne, BE;
Mireille Paulus, Brussels, BE;
Assignee:
Solvay (Societe Anonyme), Brussels, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ; C08J / ; C11D / ;
U.S. Cl.
CPC ...
252 67 ; 62114 ; 134 38 ; 134 40 ; 134 42 ; 252162 ; 252170 ; 252171 ; 252194 ; 252364 ; 252D / ; 264 53 ; 264D / ; 521 98 ; 521131 ;
Abstract
The invention relates to azeotropic and pseudoazeotropic compositions comprising difluoromethoxy-2,2,2-trifluoroethane with 2,2-dichloro-1,1,1-trifluoroethane or with 1,1-dichloro-1-fluoroethane. These compositions can be employed as solvents, especially for cleaning electronic components and for degreasing metals, as blowing agents, especially for the preparation of polyurethane foams, or as refrigerants.