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:
May. 13, 2003
Filed:
Sep. 18, 2000
Hiromi Ishida, Moka, JP;
Kenichi Ishiwa, Oyama, JP;
Mitsuyasu Okamura, Utsunomiya, JP;
Tomoaki Shimoda, Ichihara, JP;
Theodorus L. Hoeks, Bergen op Zoom, NL;
Henricus H. M. van Hout, Halsteren, NL;
Monica M. Marugan, Bergen op Zoom, NL;
Patrick J. McCloskey, Watervliet, NY (US);
Joseph A. King, Jr., Midlothian, VA (US);
Paul M. Smigelski, Jr., Schenectady, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
The present invention provides a composition comprising polycarbonate wherein the polycarbonate has a very low Fries content (e.g., above 5 ppm and below 360 ppm). The present invention also provides a polycarbonate having a very low Fries content which is made by the melt process. This polycarbonate has high ductility and high impact strength. The invention also provides a method for making these compositions. Another aspect of the invention is an optical disk comprising polycarbonate having a very low Fries content which is made by the melt process. Such optical disks resist breakage due to bending.