Ester-functional polysiloxanes and copolymers made therefrom

US9518182B2 · kind B2 · utility

Assignee

• Momentive Performance Materials GmbH · US

Inventors

• Narayana Padmanabha Iyer · Bengaluru, IN
• Indumathi Ramakrishnan · Bengaluru, IN
• Anuj Mittal · Bengaluru, IN
• Roy Rojas-Wahl · Teaneck, US
• Samim Alam · Tarrytown, US

Key dates

• Filing date: Jul 2, 2015
• Grant date: Dec 13, 2016
• Expiry date: Jul 2, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G77/12
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

There is described a polysiloxane having the structure:wherein R1, R2, and R3 are independently a hydrocarbon radical, an unsaturated radical, an alkoxy radical, an aryl radical or an alkenyloxy radical, R4 is independently a direct bond or hydrocarbon radical optionally substituted with oxygen and nitrogen, R5 is independently a hydrogen, a halogen, an aliphatic group having from 1 to 6 carbon atoms, an aromatic group having 6 to 8 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, or an aryloxy group, R6 is independently a hydroxyl group, an amine group, an acid chloride group, or a sulfonyl halide group, x is from 1 to 300; y is from 0 to 50; and z is from 0 to 50. The polysiloxane is used to make various copolymers and polymer blends. A variety of articles can be made using the polysiloxane described as a polymer blend or copolymer.