Polycarbonate nanocomposites

US8389626B2 · kind B2 · utility

Assignee

• Sabic Innovative Plastics B.V. · NL

Inventors

• Parnasree Maiti · Bengaluru, IN
• Sonia Oberoi · Edison, US
• Roopali Rai · Savanuru, IN
• Vaidyanath Ramakrishnan · Bergen op Zoom, NL
• Sandeep Tyagi · Linz, AT

Key dates

• Filing date: Mar 28, 2008
• Grant date: Mar 5, 2013
• Expiry date: Dec 4, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2369/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Polycarbonate nanocomposites comprising a polycarbonate matrix having non-oxidized metal nanoparticles dispersed therein are disclosed. The polycarbonate nanocomposite is produced by a process comprising forming a reaction mixture comprising a dihydroxy compound, an activated carbonate, a metal precursor, and a solvent; and in-situ polymerizing the reaction mixture to form a nanocomposite comprising a polycarbonate matrix and metal nanoparticles dispersed therein. The metal precursor comprises a metal selected from a specified group. The nanocomposites have improved mechanical, optical, electrical and/or magnetic properties. Also disclosed are articles formed from such polycarbonate nanocomposites.