Patent · US Expired

Cleaning or drying compositions based on 1,1,1,2,3,4,4,5,5,5-decafluoropentane

US5965511A · kind A · utility

2Cited by

6References

7Claims

0Family size

Assignee

Elf Atochem S.A. · FR

Inventors

Pascal Michaud · Saint-Gratien, FR
Jean-Jacques Martin · Bois-Colombes, FR

Key dates

Filing date	Jan 30, 1998
Grant date	Oct 12, 1999
Priority date	—
Expiry date	Jan 30, 2018

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC11D7/28
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

In order to replace compositions based on CFC or on HCFC in applications for cleaning or drying solid surfaces (in particular defluxing), the invention proposes azeotropic or virtually azeotropic compositions based on 1,1,1,2,3,4,4,5,5,5-decafluoropentane, methylene chloride and optionally methanol.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.