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:
Mar. 17, 1998
Filed:
Nov. 27, 1995
Applicant:
Inventor:
James R Hall, Baton Rouge, LA (US);
Assignee:
DSM Copolymer, Inc., Baton Rouge, LA (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
585508 ; 585507 ; 585513 ; 585523 ; 585700 ; 585728 ; 585733 ; 585 16 ; 585 18 ;
Abstract
A copolymer having an RSV less than 0.6 and a process for its preparation in which ethylene, at least one other 1-alkene and, optionally, an aliphatic or alicyclic polyunsaturated monomer are polymerized in the presence of a catalyst system containing (1) a compound of vanadium, (2) at least one alkyl aluminum halide, (3) an .alpha.-halo, ketoaromatic promoter and (4) a chain transfer agent in which the molar ratio of alkyl groups of the alkyl aluminum halide to halogen atoms is at least 1.5.