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:
Dec. 12, 1995
Filed:
Dec. 23, 1994
Applicant:
Inventors:
Sylvie Macaudiere, Asnieres, FR;
Jean-Claude Tanguy, Sannois, FR;
Assignee:
d'Elf Atochem S.A., Puteaux, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ; C08J / ; C11D / ;
U.S. Cl.
CPC ...
252 67 ; 62114 ; 252162 ; 252172 ; 252305 ; 252364 ; 252D / ; 264 53 ; 264D / ; 521 98 ; 521131 ;
Abstract
To replace chlorofluorocarbons as refrigerant fluids, the invention proposes to employ mixtures containing, on a mass basis, approximately 25 to 65% of 1,1,1-trifluoroethane, 1 to 70% of perfluoropropane and 5 to 34% of propane. The mixtures according to the invention can also be employed as aerosol propellants or as blowing agents for plastic foams.