Process of preparing a siloxane copolymer

US9701879B2 · kind B2 · utility

Assignee

• Dow Corning Corporation · US

Inventors

• Lok Ming Eva Li · Midland, US
• Yihan Liu · Tianjin, CN
• Timothy A. Roggow, II · Saginaw, US
• Marie-Jose Sarrazin · Waterloo, BE
• David Brian Selley · Midland, US
• Andreas Stammer · Thiméon, BE
• Paul Cornelius Vandort · Sanford, US

Key dates

• Filing date: Sep 19, 2012
• Grant date: Jul 11, 2017
• Expiry date: Sep 19, 2032

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06M2200/12
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention relates to a process for preparing a cyclic siloxane copolymer, a water repellent composition and the use for treating porous substrates like concrete, especially reinforced concrete.