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:
Jul. 22, 1997
Filed:
Oct. 26, 1995
Applicant:
Inventors:
Martin Brunner, Marly, CH;
Bruno Rotzinger, Birsfelden, CH;
Thomas Schmutz, Riehen, CH;
Werner Stauffer, Fribourg, CH;
Assignee:
Ciba-Geigy Corporation, Tarrytown, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ;
U.S. Cl.
CPC ...
524700 ; 524132 ; 524707 ; 524720 ; 524740 ; 524741 ; 524 99 ; 524100 ; 524102 ;
Abstract
The invention relates to a process for the preparation of olefin polymers by polymerization using a transition metal catalyst with the addition of an aminoalkyl-1,1'-biphenyl-2,2'-diylphosphite or aminoalkyl-2,2'-alkylidene-bis(phenyl)phosphite, in conjunction with optional further modifiers. The polymers obtainable in this manner have excellent long-term stability.