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:
Aug. 07, 2012
Filed:
Nov. 05, 2004
Ekkehard Mueh, Rheinfelden, DE;
Peter Jenkner, Rheinfelden, DE;
Max Preisenberger, Frankfurt am Main, DE;
Burkhard Standke, Loerrach, DE;
Ekkehard Mueh, Rheinfelden, DE;
Peter Jenkner, Rheinfelden, DE;
Max Preisenberger, Frankfurt am Main, DE;
Burkhard Standke, Loerrach, DE;
Evonik Degussa GmbH, Essen, DE;
Abstract
The present invention provides a linear, cyclic or branched polyether-functional siloxane or a mixture of polyether-functional siloxanes of the general formula (I) R[—OSi(R)(OR)][—OSi(R)(R)(OR)], (II) in which groups R are identical or different and R is essentially H, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, t-butyl, 2-methoxyethyl or 2-hydroxyethyl or, in the case of cyclic siloxanes, may be a silyl radical of the silyl units of the formula (I), groups Rare identical or different and Ris a terminally blocked polyether group of the formula (II), R—O[—R—O][(—R)]— (II) and groups Rare identical or different and Ris a linear, branched or cyclic, optionally substituted alkyl group having 1 to 18 carbon atoms or a mercaptoalkyl group or an alkenyl group having 2 to 8 carbon atoms or an alkenyl group having 2 to 8 carbon atoms or an aryl group having 6 to 12 carbon atoms or an aminoalkyl group or the general formula (III) HN(CH)[(NH)(CH)]—(CH)— (III) The present invention further provides aqueous and/or alcoholic compositions which comprise a polyether siloxane according to formula (I), to methods for the production of said systems, and to the use thereof.