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:
Apr. 11, 2000
Filed:
Dec. 09, 1997
Applicant:
Inventors:
Volker Dolle, Bensheim, DE;
Jurgen Rohrmann, Kelkheim, DE;
Andreas Winter, Glashutten, DE;
Martin Antberg, Hofheim am Taunus, DE;
Assignee:
Targor GmbH, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526126 ; 526160 ; 526943 ; 526127 ; 502117 ; 502152 ;
Abstract
Propylene isoblock polymers with 0.5 to 10 mol %, based on the total polymer, of randomly distributed ethylene content and with a narrow molecular weight distribution and rubber-like properties are obtained when propylene is polymerized using a catalyst comprising an aluminoxane and a chiral metallocene, containing bridges, of formula I: ##STR1## in which M.sup.1 is preferably hafnium or zirconium,
Dolle, Volker. (2000). Polymer having long isotactic sequences and randomly-distributed (U.S. Patent No. 6048950). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6048950
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile