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:
Sep. 04, 2007
Filed:
Jul. 08, 2005
Pui-yan Lin, Hockessin, DE (US);
George Elias Zahr, Glen Mills, PA (US);
Govindasamy Paramasivam Rajendran, Boothwyn, PA (US);
Pui-Yan Lin, Hockessin, DE (US);
George Elias Zahr, Glen Mills, PA (US);
Govindasamy Paramasivam Rajendran, Boothwyn, PA (US);
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
Provided according to the invention are cross-linked polymers comprising an anhydride or partially hydrolyzed anhydride functionalized polymer having oligomeric polyimide cross-links, providing a polymeric composite on a molecular scale, and shaped articles made therefrom. In some embodiments the shaped articles are particularly well suited for electronics applications. The shaped articles are characterized by low CTE (coefficient of thermal expansion), low dielectric constant (Dk), low dissipation factor (Df), high strength, high modulus and high toughness.