Optically clear polycarbonate polyester compositions

US7718733B2 · kind B2 · utility

Assignee

• Sabic Innovative Plastics B.V. · NL

Inventors

• Vishvajit Chandrakant Juikar · Savanuru, IN
• Ganesh Kannan · Saginaw, US
• Bernardus Antonius Gerardus Schrauwen · Sterksel, NL
• Gabrie Hoogland · Breda, NL

Key dates

• Filing date: Dec 20, 2004
• Grant date: May 18, 2010
• Expiry date: Feb 9, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L55/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

An optically clear thermoplastic resin composition consisting essentially of: structural units derived at least one substituted or unsubstituted polycarbonate, at least greater than 30 weight percent of a substituted or unsubstituted polyester, a modified polycarbonate, an impact modifier having a refractive index in the range between about 1.51 and about 1.56 and an additive is disclosed. The composition possess good optical properties, flow, stability and mechanical property. Also disclosed is a process to prepare these compositions and articles therefrom.