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:
Nov. 30, 1993
Filed:
Jun. 18, 1992
Applicant:
Inventors:
Horst Robeck, Hofheim, DE;
Hans-Matthias Deger, Hofheim, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D / ; C11D / ; C23G / ;
U.S. Cl.
CPC ...
252171 ; 134 12 ; 134 31 ; 134 38 ; 134 40 ; 134 42 ; 252162 ; 252170 ; 252364 ; 252D / ;
Abstract
The invention relates to an azeotrope-like mixture which contains about 8-12% by weight of 2-propanol and about 88-92% by weight of 1H-perfluorohexane and to a process for cleaning electronic components, in particular soldered circuit boards or printed circuits, with the aid of this mixture.