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. 16, 2010
Filed:
Mar. 31, 2009
Kazumitsu Suzuki, Kyoto, JP;
Masahiro Matsuoka, Kyoto, JP;
Satoshi Ueyama, Chiyoda-ku, JP;
Makoto Miyamoto, Chiyoda-ku, JP;
Kazumitsu Suzuki, Kyoto, JP;
Masahiro Matsuoka, Kyoto, JP;
Satoshi Ueyama, Chiyoda-ku, JP;
Makoto Miyamoto, Chiyoda-ku, JP;
Sanyo Chemical Industries, Ltd, Kyoto-shi, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A method for cleaning articles using a surfactant which is effective in the formation of stable microbubbles is provided. The surfactant for microbubble formation contains a (poly)oxyalkylene adduct (A) of an active hydrogen atom-containing compound (a) represented by formula (1)Z-[(AO)—H]  (1) wherein Z is the residue of an active hydrogen-containing compound (a) with a valence of P resulting from removal of the active hydrogen atom or atoms; A is an alkylene group containing 1 to 8 carbon atoms; n is an integer of 1 to 400; and p is an integer of 1 to 100. The foaming power of a 0.02% by weight aqueous solution of the (poly)oxyalkylene adduct (A) as measured at 20° C. by the Ross Miles test is not higher than 50 mm.