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:
Jun. 09, 1992
Filed:
Apr. 01, 1991
Applicant:
Inventors:
Hans Buchwald, Ronnenberg, DE;
Andreas Brackmann, Hanover, DE;
Boleslaus Raszkowski, Wiedensahl, DE;
Assignee:
Kali-Chemie AG, Hanover, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C11D / ; C11D / ; C23G / ;
U.S. Cl.
CPC ...
252171 ; 134 12 ; 134 31 ; 134 38 ; 134 39 ; 134 40 ; 203 67 ; 252162 ; 252170 ; 252364 ; 252D / ;
Abstract
Azeotropic and azeotrope-like compositions composed of dichloropentafluoropropanes and acetone are described which are suitable for use in cleaning processes and in printing and copying processes for fixing toner based on polystyrene.