High heat polycarbonates, methods of making, and articles formed therefrom

US9062196B2 · kind B2 · utility

Assignee

• SABIC GLOBAL TECHNOLOGIES B.V. · NL

Inventors

• Gautam Chatterjee · Bengaluru, IN
• Gheorghe Cojocariu · Evansville, US
• Chandrashekhar Lingannaiah · Geleen, NL
• Gaurav Mediratta · Bengaluru, IN
• Shantaram Suryakant Morye · Jamkhed, IN
• Gary F. Smith · Evansville, US
• Veeraraghavan Srinivasan · Bengaluru, IN

Key dates

• Filing date: Sep 28, 2007
• Grant date: Jun 23, 2015
• Expiry date: Sep 21, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2205/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Disclosed herein is a polymer blend comprising a first polycarbonate comprising a first structural unit derived from a 2-aryl-3,3-bis(4-hydroxyaryl)phthalimidine and a second structural unit derived from a dihydroxy aromatic compound, wherein the second structural unit is not identical to the first structural unit, and a second polycarbonate comprising a structural unit derived from a dihydroxy aromatic compound, wherein the polymer blend has a glass transition temperature of 155 to 200° C.; and wherein a test auricle having a thickness of 3.2 mm and molded from the blend has a haze of less than or equal to 3.0 measured in accordance with ASTM D1003-00. A method of making the polymer blend, and articles prepared from the blend, are also disclosed.