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:
Feb. 22, 2005
Filed:
Jul. 24, 2003
Johny Denis Grade, Meldert, BE;
Trevor Blease, Stockton on Tees, GB;
Johny Denis Grade, Meldert, BE;
Trevor Blease, Stockton on Tees, GB;
Imperial Chemical Industries PLC, London, GB;
Abstract
An anionic surfactant of the formula (I): R—Y—(O)C—(HR)C—C(HR)—C(O)—(OA)—X wherein one of R and Ris a Cto Clinear or branched alkyl or alkenyl, and the other is hydrogen; Y is O, or NH, or —NH—CH—C(═CH)—, or —N(CH—CR(═CH))—CH—C(═CH)— where Ris hydrogen or methyl; when Y is O, Ris hydrogen, or a salt, or a Cto Clinear or branched alkyl, or an optionally substituted Cto Clinear or branched alkenyl; when Y is NH, or —NH—CH—(═CH)—, or —N(CH—CR(═CH))—CH—C(═CH)— where Ris hydrogen or methyl, Ris hydrogen or methyl; OA is an oxyalkylene group; n is 2 to 100; and X is a group comprising at least one acidic H atom, or a salt thereof, and the use thereof in free radical initiated addition polymerisation, particularly emulsion polymerisation.