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:
Jun. 02, 2015
Filed:
Feb. 08, 2012
Applicants:
Pascal Nicol, Saint Genis Laval, FR;
Serge Hub, Villeurbanne, FR;
Inventors:
Pascal Nicol, Saint Genis Laval, FR;
Serge Hub, Villeurbanne, FR;
Assignee:
ARKEMA FRANCE, Colombes, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 10/02 (2006.01); C08F 110/02 (2006.01);
U.S. Cl.
CPC ...
C08F 10/02 (2013.01); C08F 110/02 (2013.01);
Abstract
A method for manufacturing polyethylene or an ethylene copolymer, including a step of free radical polymerization or copolymerization of the ethylene at an initiation temperature varying from 150° C. to 200° C., at a pressure varying from 500 to 3000 bar, in the presence of a peroxidic polymerization initiator selected from among the peroxide compounds of formula (I) in which R1 and R8 are, separately, a C2-C6 alkyl group; R2, R3, R6 and R7 are, separately, a C1-C5 alkyl group; and R4 and R5 are, separately, a C1-C6 alkyl group.