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:
Jan. 11, 2005
Filed:
Dec. 25, 2001
Tetsuya Gota, Tokyo, JP;
Kazushi Kobayashi, Tokyo, JP;
Kaoru Komiya, Tokyo, JP;
Masahide Tsuzuki, Tokyo, JP;
Takeaki Mizutari, Tokyo, JP;
Tetsuya Gota, Tokyo, JP;
Kazushi Kobayashi, Tokyo, JP;
Kaoru Komiya, Tokyo, JP;
Masahide Tsuzuki, Tokyo, JP;
Takeaki Mizutari, Tokyo, JP;
Asahi Denka Co., Ltd., Tokyo, JP;
Abstract
Disclosed are surfactants represented by the following formula (1):wherein Rrepresents a branched aliphatic hydrocarbon group, a secondary aliphatic hydrocarbon group or a branched aliphatic acyl group, AO and AO' each independently represents an oxyalkylene group having 2 to 4 carbon atoms, L represents a group represented by formula (2) to be described below, z stands for a number of from 1 to 10, X represents a hydrogen atom or an ionic hydrophilic group, m stands for a number of from 0 to 1,000, and n stands for a number of from 0 to 1,000.wherein Rand Reach independently represents a hydrogen atom or a methyl group, x stands for a number of from 0 to 12, and y stands for a number of 0 or 1. These surfactants do not contain any phenyl ether group considered to have significant effects on the environment, such as a nonylphenyl group, and have performance comparable with reactive surfactants containing one or more phenyl ether groups. Emulsifiers for emulsion polymerization, dispersants for dispersion polymerization and resin modifiers, all of which contain the surfactants, are also disclosed.