Linear polydimethylsiloxane-polyether copolymers having amino and/or quaternary ammonium groups and use thereof

• US 8,957,009 B2
• Filed: 12/29/2010
• Issued: 02/17/2015
• Est. Priority Date: 01/29/2010
• Status: Expired due to Fees

• Current Assignee: Evonik Degussa GmbH
• Original Assignee: Evonik Degussa GmbH
• Inventors: Schubert, Frank, Knott, Wilfried, Ferenz, Michael, Klein, Klaus-Dieter, Maurer, Tobias, Scheuermann, Ralph, Kluesener, Bernard William, Panandiker, Rajan Keshav
• Primary Examiner(s): Orwig, Kevin S
• Assistant Examiner(s): Lazaro, Dominic
• Application Number:
  US13/520,091
• Publication Number:
  US 20120308494A1
• Time in Patent Office: 1,511 Days
• Field of Search: None
• US Class Current: 510/466
• CPC Class Codes: A61K 8/898 containing nitrogen, e.g. amodimethicone, trimethyl silyl amodimethicone or dimethicone propyl PG-betaine
• CPC Class Codes: A61P 17/00 Drugs for dermatological disorders
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin
• CPC Class Codes: A61Q 5/00 Preparations for care of the hair
• CPC Class Codes: C08G 77/388 containing nitrogen
• CPC Class Codes: C08G 77/46 containing polyether sequences
• CPC Class Codes: D06M 15/6436 containing amino groups
• CPC Class Codes: D06M 15/647 containing polyether sequences

Abstract

Linear polydimethylsiloxane-polyether copolymers with amino and/or quaternary ammonium groups, obtainable by the reaction of organopolysiloxanes functionalized with secondary aminoalkyl groups with the reaction products formed from compounds containing epoxy groups and amines, the use thereof and process for preparation thereof.

Claims

1. A linear polydimethylsiloxane-polyether copolymer with an amino group and/or a quaternary ammonium group, obtained by:

reacting an organopolysiloxane functionalized with a secondary aminoalkyl group with a reaction product formed from compounds containing epoxy groups and amines;

wherein the linear polydimethylsiloxane-polyether copolymer is of the formula (4);

H-A-[(B—

C)_x—

B-A]_y-H 

 

Formula (4);

where A is a siloxane fragment according to formula (5);

2. The linear polydimethylsiloxane-polyether copolymer according to claim 1;

wherein the linear polydimethylsiloxane-polyether copolymer has been quaternized with acids and/or allylating agents and bears an ammonium group.