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:
Jul. 09, 1985
Filed:
Aug. 24, 1983
Hiroshi Ito, Hino, JP;
Kyusei Hasegawa, Sagamihara, JP;
Takashi Takeuchi, Utsunomiya, JP;
Takayuki Ikenaga, Wakayama, JP;
Teikoku Oil Co., Ltd., Tokyo, JP;
Kao Corporation, Tokyo, JP;
Abstract
A stable micelle solution composition for recovering crude oil, which can form a homogeneous micro emulsion against brines in a wide range of salt concentrations. In a micelle solution composition comprising a hydrocarbon, brine, and a surface active agent, the above stated stable micelle solution composition can be obtained by specifying the surface active agent to be a mixture of (a) an ethylene oxide and propylene oxide block polymer, (b) an alkylbenzenesulfonate, (c) a polyoxyethylene alkyl ether sulfate or polyoxyethylene alkylphenol ether sulfate, and (d) a polyoxyethylene nonionic surface active agent other than the agent specified in (a).