logo

For the Inventor, By the Inventor

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.:

US 5102563 B1

PDFFull Text
Date of Patent:
Apr. 07, 1992

Filed:

May. 10, 1991

Cleaning composition based on 1,1,1,2,2-pentafluoro-3,3-dichloropropane

Applicant:
Inventors:

Daniel Desbiendras, Villetaneuse, FR;

Jean-Jacques Martin, Bois-Colombes, FR;

Pascal Michaud, Saint-Gratien, FR;

Assignee:

Societe ATOCHEM, Paris, FR;

Attorney:

Morgan & Finnegan

Primary Examiner:

A Lionel Clingman

Assistant Examiner:

Linda D Skaling

Int. Cl.
CPC ...
C11D / ; C11D / ; C23G / ; B08B / ;
U.S. Cl.
CPC ...
252171 ; 134 12 ; 134 31 ; 134 38 ; 134 39 ; 134 40 ; 252153 ; 252162 ; 252170 ; 252364 ; 252D / ;
Abstract

For replacing cleaning compositions based on 1,1,2-trichloro-1,2,2-trifluoroethane (F113), the invention provides a composition comprising 55 to 80% by weight of 1,1,1,2,2-pentalfuoro-3,3-dichloropropane (225ca) and 20 to 45% by weight of methyl tert-butyl ether. These two compounds form a negative azeotrope (b.p.=59.9.degree. C. at atmospheric pressure). The composition, which may be stabilized, can be used for cleaning solid surfaces, in particular for removing flux from printed circuits and for degreasing mechanical parts.

Find Patent Forward Citations

Desbiendras, Daniel. (1992). Cleaning composition based on 1,1,1,2,2-pentafluoro-3,3-dichloropropane (U.S. Patent No. 5102563). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5102563

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…