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. 17, 2013
Filed:
May. 25, 2005
Philip L. Angermeier, Mount Vernon, IN (US);
Robert Edgar Colborn, Niskayuna, NY (US);
Robert R. Gallucci, Mt. Vernon, IN (US);
Paul Edward Howson, Latham, NY (US);
Tara Jane Mullen, Mt. Vernon, IN (US);
Roy Ray Odle, Mt. Vernon, IN (US);
Albert Santo Stella, Voorheesville, NY (US);
John Morgan Whitney, Niskayuna, NY (US);
Philip L. Angermeier, Mount Vernon, IN (US);
Robert Edgar Colborn, Niskayuna, NY (US);
Robert R. Gallucci, Mt. Vernon, IN (US);
Paul Edward Howson, Latham, NY (US);
Tara Jane Mullen, Mt. Vernon, IN (US);
Roy Ray Odle, Mt. Vernon, IN (US);
Albert Santo Stella, Voorheesville, NY (US);
John Morgan Whitney, Niskayuna, NY (US);
Abstract
A process for preparing polyimide resins comprises stirring a diamine and a dianhydride in a solvent to form a slurry; heating the slurry to a temperature sufficient for the diamine and dianhydride to react wherein the temperature is below the melting point of the dianhydride, below the melting point of the diamine, or below the melting points of the dianhydride and diamine; and reacting the diamine and dianhydride to form a polyimide having sufficient molecular weight to precipitate from the solvent.