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:
Aug. 14, 1979
Filed:
Nov. 29, 1977
Syozo Matumoto, Kyoto, JP;
Mitsuhiro Okamoto, Neyagawa, JP;
Horiba, Ltd., Kyoto, JP;
Daikin Kogyo Co., Ltd., Osaka, JP;
Abstract
The present invention relates to a solvent primarily composed of a low polymer of chlorotrifluoroethylene for the extraction of an oil fraction in water and measuring the concentration of the oil fraction in water by solvent extraction in the infrared absorption method. The low polymers of chlorotrifluoroethylene contemplated as a solvent herein may be a single polymer or a mixture of polymers of different degrees of polymerization as shown in the following formulae: ##STR1## WHEREIN BOTH ATOMS REPRESENTED BY X in the first chemical formula are the same or different from each other and X is a chlorine or fluorine atom, and n is 2 or 3.