The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 06, 2012
Filed:
Dec. 30, 2009
Polycarbonate-poly(ether-ester) copolymer composition, method of manufacture, and articles therefrom
Shreyas Chakravarti, Evansville, IN (US);
Christopher Luke Hein, Evansville, IN (US);
Peter Hendrikus Theodorus Vollenberg, Evansville, IN (US);
Shreyas Chakravarti, Evansville, IN (US);
Christopher Luke Hein, Evansville, IN (US);
Peter Hendrikus Theodorus Vollenberg, Evansville, IN (US);
Abstract
A composition comprising: a polycarbonate comprising units derived from a bisphenol cyclohexylidene of the formula: wherein Rand Rare each independently Calkyl, Rand Rare each independently hydrogen or Calkyl, Ris Calkyl or halogen, and t is 0 to 10; and a poly(ether-ester) copolymer comprising 40 to 60 wt % of polyester hard block units derived from a C-Caromatic dicarboxylic acid or a C-Calicyclic dicarboxylic acid and at least one glycol component, wherein when the C-Caromatic dicarboxylic acid comprises terephthalic acid, isophthalic acid groups are present in an amount from 0 to 30 mole %, based on the total moles of isophthalic acid groups and terephthalic acid groups in the hard block units, and 40 to 60 wt % of polyether soft block units derived from poly(oxytetramethylene) glycol, wherein the molecular weight of the poly(oxytetramethylene) glycol groups is 300 to 1800 Daltons.