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:
Jan. 03, 2006
Filed:
Dec. 22, 2003
Cliff Robert Mure, Hillsborough, NJ (US);
Guylaine St. Jean, Somerset, NJ (US);
Stephen Paul Jaker, Colonia, NJ (US);
Robert J. Jorgensen, Scott Depot, WV (US);
Karen Breetz, Morgantown, WV (US);
Cliff Robert Mure, Hillsborough, NJ (US);
Guylaine St. Jean, Somerset, NJ (US);
Stephen Paul Jaker, Colonia, NJ (US);
Robert J. Jorgensen, Scott Depot, WV (US);
Karen Breetz, Morgantown, WV (US);
Union Carbide Chemicals & Plastics Technology Corporation, Danbury, CT (US);
Abstract
Polyethylene resins having improved environmental stress crack resistance, stiffness and impact resistance is made by a process comprising feeding both a chromium oxide catalyst and a silyl chromium catalyst into a polymerization reactor. The chromium oxide catalyst and the silyl chromium catalyst are on separate supports. The chromium oxide catalyst is 25–50 weight percent and the silyl chromium catalyst is 50–75 weight percent of the total weight of catalyst. The catalysts may be added separately or as a single mixture.