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:
Oct. 20, 2009
Filed:
Aug. 22, 2005
Qing YE, Schenectady, NY (US);
David Bruce Hall, Ballston Lake, NY (US);
William David Richards, Scotia, NY (US);
Daniel Joseph Brunelle, Burnt Hills, NY (US);
Havva Yagci Acar, Sariyer-Istanbul, TR;
Qing Ye, Schenectady, NY (US);
David Bruce Hall, Ballston Lake, NY (US);
William David Richards, Scotia, NY (US);
Daniel Joseph Brunelle, Burnt Hills, NY (US);
Havva Yagci Acar, Sariyer-Istanbul, TR;
SABIC Innovative Plastics IP B.V., Bergen op Zoom, NL;
Abstract
Copolyetherimides compositions having high glass transition temperatures and outstanding ductility are presented. The copolyetherimides having Mof at least 40,000 comprising isomeric bis(phthalimide) structural units within a relatively narrow range of isomer proportions exhibited Tgs of at least 240° C. and outstanding Notched Izod values. The copolyetherimides comprise oxydianiline residues and structural units of the formulas (I) and (II) (III). The copolyetherimides are characterized by a mole percentage of structural units derived from 4,4'-biphenol in a range from about 55% to about 85% of all bisphenol-derived structural units present in the copolyetherimide composition; a mole percentage of structural units derived from bisphenol A in a range from about 45% to about 15% of all bisphenol-derived structural units present in the copolyetherimide composition; and a total mole percentage of structural units derived from bisphenol A or 4,4′-biphenol of at least 95% of all bisphenol-derived structural units present in the copolyetherimide composition.