Polycarbonate-polyester blends, methods of manufacture, and methods of use

US7655737B2 · kind B2 · utility

Assignee

• Sabic Innovative Plastics B.V. · NL

Inventors

• Shreyas Chakravarti · Evansville, US
• Gabrie Hoogland · Breda, NL
• Vishvajit Chandrakant Juikar · Savanuru, IN
• Ganesh Kannan · Saginaw, US
• Edward Kung · Bergen op Zoom, NL
• Nina P. Vaze · Stabroek, BE
• Karin van de Wetering · Bergen op Zoom, NL

Key dates

• Filing date: Nov 16, 2006
• Grant date: Feb 2, 2010
• Expiry date: Jul 23, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L67/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A composition comprising a blend of: from 1 to 99 weight percent of a polycarbonate comprising from 10 to 90 mole percent of one or more arylate carbonate units of the formulawherein each Rf is independently a C1-12 hydrocarbon, halogen, or halogen-substituted C1-12 hydrocarbon, and u is 0 to 4; and from 10 to 90 mole percent of different carbonate units of the formulawherein at least 60% of the R1 groups are C6-30 aromatic groups, and from 1 to 99 weight percent of a polyester comprising units of the formulawherein T is a residue derived from a C5-C7 cycloaliphatic or C7-C12 aromatic dicarboxylic acid or a chemical equivalent thereof, and D is a residue derived from a C6-C12 aromatic or C2-C12 aliphatic diol or a chemical equivalent thereof, provided that at least 50 mole percent of D is derived from 1,4-cyclohexanedimethanol or a chemical equivalent thereof; and wherein the weight percent of the polycarbonate and the polyester are each based on the total weight of the polycarbonate and the polyester.