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. 17, 2009
Filed:
Apr. 13, 2004
Christian Von Corswant, Mölndal, SE;
Karl Hult, Stockholm, SE;
Erik Söderlind, Mölndal, SE;
Fredrik Viklund, Stockholm, SE;
Christian von Corswant, Mölndal, SE;
Karl Hult, Stockholm, SE;
Erik Söderlind, Mölndal, SE;
Fredrik Viklund, Stockholm, SE;
AstraZeneca AB, Sodertalje, SE;
Abstract
New non-ionic surfactants in the form of polyoxyalkylene glycol hydroxy fatty acid derivatives or monoalkylated polyoxyalkylene glycol hydroxy fatty acid derivatives having a polyoxyalkylene/alkyl polyoxyalkylene chain with a chain-length of 25-455 repeating units and a specified substituent on the hydroxy position of the specified hydroxy fatty acid, according to the general formula (I) CH—(CH)—CH—(CH)—CO—[—O—R—]—O—RR—O (I); wherein for example Ris methyl, Ris optionally substituted C-Cacyl, alkyl, or alkenyl, Ris ethylene, x is 2-12, y is 7-17, (x+y) is 3-19 and z is 25-57; advantageously prepared by involving an enzymatic process, formulations comprising them, their use as solubilizers and a process involving a hydrolytic enzyme for preparing them.