Copolymers and polymer blends having improved refractive indices

US8691915B2 · kind B2 · utility

Assignee

• Sabic Innovative Plastics B.V. · NL

Inventors

• Rajiv Srivastava · Glenmont, US
• James L. DeRudder · Greenwood, US
• Rajashakhar Totad · Kamatana, IN
• Robert Walter Venderbosch · Bergen op Zoom, NL
• Raja Krishnamurthy · Bengaluru, IN

Key dates

• Filing date: Apr 23, 2012
• Grant date: Apr 8, 2014
• Expiry date: Aug 7, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L69/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

This disclosure relates generally to methods for the manufacture of transparent polymer compositions exhibiting refractive indices similar or even identical to the refractive index of polycarbonate. Also disclosed are polymer blends comprising the disclosed polymer compositions blended with one or more convention polycarbonate.