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:
Jun. 12, 2007
Filed:
Dec. 16, 2004
Farid Khouri, Clifton Park, NY (US);
Julia Lee, Niskayuna, NY (US);
Sheldon Shafer, Clifton Park, NY (US);
Farid Khouri, Clifton Park, NY (US);
Julia Lee, Niskayuna, NY (US);
Sheldon Shafer, Clifton Park, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
The present invention provides novel block copolycarbonates comprising residues from a hydroxy terminated polyetherimide or polyimide, residues from a dihydroxy compound, and residues from an activated carbonate. In a preferred embodiment of the present invention the polyetherimide or polyimide blocks exhibit high Mwhile the resulting block copolycarbonate exhibits a single T. The novel block copolycarbonates of the present invention are produced under melt polymerization conditions in the presence an activated carbonate source.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile