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:
Sep. 18, 2001
Filed:
Apr. 21, 2000
Applicant:
Inventors:
Pascal Michaud, Saint Gratien, FR;
Jean-Jacques Martin, Bois Colombes, FR;
Assignee:
Atofina, Puteaux, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C11D 1/708 ; C23G 1/00 ;
U.S. Cl.
CPC ...
C11D 1/708 ; C23G 1/00 ;
Abstract
In order to replace compositions based on CFC or on HCFC in cleaning or drying applications on solid surfaces (in particular defluxing), the invention provides azeotropic or near-azeotropic compositions based on 1,1,1,3,3-pentafluorobutane, on dichloromethane, on methanol and on 1,1,1,2,3,4,4,5,5,5-decafluoropentane.