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:
Feb. 24, 2009
Filed:
Jun. 26, 2006
David Domingo, Murcia, ES;
Ignacio Vic Fernandez, Madrid, ES;
Jorge Garcia Agudo, Murcia, ES;
Gerardo Hidalgo-llinas, Murcia, ES;
Alfredo Lopez-carretero, Murcia, ES;
Miguel Angel Salomon, Murcia, ES;
David Domingo, Murcia, ES;
Ignacio Vic Fernandez, Madrid, ES;
Jorge Garcia Agudo, Murcia, ES;
Gerardo Hidalgo-Llinas, Murcia, ES;
Alfredo Lopez-Carretero, Murcia, ES;
Miguel Angel Salomon, Murcia, ES;
Sabic Innovative Plastics IP BV, Bergen op Zoom, NL;
Abstract
A method of producing a polycarbonate is provided. In an embodiment of the present invention the method includes the steps of: (i) introducing to a melt polymerization reactor system a reaction mixture having a first dihydroxy compound and an acid stabilizer, a carbonate source, and a polymerization catalyst system containing KHPO; and (ii) allowing the reaction mixture to polymerize thereby forming polycarbonate.