Block ABA silicone polyalkyleneoxicie copolymers, methods of preparation, and applications for employing the same

US8742154B2 · kind B2 · utility

Assignee

• Momentive Performance Materials GmbH · US

Inventors

• Ning Lu · Chappaqua, US
• Anne Dussaud · Tarrytown, US

Key dates

• Filing date: Nov 16, 2011
• Grant date: Jun 3, 2014
• Expiry date: Jul 4, 2032

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06M15/647
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

There is provided herein a linear tri-block copolymer having the average formula (1):ABA  (1)wherein A is a polyalkyleneoxide unit or an aliphatic modified polyalkyleneoxide unit both of the general formula: R5O(CaH2aO)dY and wherein B is an internal polysiloxane unit of the general formula:[X(CaH2aO)bR2[SiO(R1)2]cSi(R1)2R2(OCaH2a)bX]wherein X and Y are divalent organic groups selected from a secondary amine or a tertiary amine and a ring-opened epoxide, such that when X is a ring-opened epoxide, Y is a secondary or tertiary amine, and when Y is a ring-opened epoxide, X is a secondary or tertiary amine. In addition, there is provided herein a method of making a linear tri-block copolymer having the average formula (1) and personal care and softener compositions comprising the same, specifically a hair conditioner.