Polycarbonate-poly(alkylene oxide) copolymer compositions and articles formed therefrom

US7649073B2 · kind B2 · utility

Assignee

• Sabic Innovative Plastics B.V. · NL

Inventors

• Gary Charles Davis · Albany, US
• Dibakar Dhara · Bengaluru, IN
• Sarah Elizabeth Genovese · Delmar, US
• Katherine Glasgow · Wake Forest, US
• Gautam Madan · Rutherford, US
• Patrick Joseph McCloskey · Watervliet, US
• Yohana Perez de Diego · Murcia, ES
• William D. Richards · Cambridge, US

Key dates

• Filing date: Jun 15, 2007
• Grant date: Jan 19, 2010
• Expiry date: Feb 11, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2205/05
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Disclosed herein is a polycarbonate copolymer comprising A) a structure derived from a dihydroxy alkylene oxide compound selected from the group consisting of formula (1a) and formula (1b):H-(E-X)l—OH  (1a)H-(E-X-E)l-OH  (1b)wherein E and X are different and each and independently are selected from the group consisting of formula (2a) and formula (2b):—(OCH2CH2)m—  (2a)—(OCHRCH2)n—  (2b)wherein R is a C1-8 alkyl group; l, m, and n are integers greater than or equal to 1; and wherein the weight average molecular weight of the total amount of the structures corresponding to formula (2b) in the copolymer is between 100 and 2,000 g/mol; and B) a structure derived from a dihydroxy aromatic compound, wherein the weight percentages are based on the total weight of the structures of A) and B).