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:
Dec. 20, 2016
Filed:
Nov. 28, 2012
Applicant:
Dow Global Technologies Llc, Midland, MI (US);
Inventors:
Jerzy Klosin, Midland, MI (US);
Pulikkottil J. Thomas, Midland, MI (US);
Assignee:
DOW GLOBAL TECHNOLOGIES LLC, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/06 (2006.01); C08F 4/18 (2006.01); C08F 210/00 (2006.01); C07C 2/26 (2006.01); C07C 2/32 (2006.01); C08F 10/00 (2006.01);
U.S. Cl.
CPC ...
C07C 2/32 (2013.01); C08F 10/00 (2013.01); C07C 2531/22 (2013.01);
Abstract
The present invention generally relates to a process that prepares polyethylenes, poly-α-olefins or poly(co-ethylene-α-olefin) having backbone weight average molecular weights less than 2500 daltons. The process uses a metal-ligand complex as a precatalyst and can be carried out at temperatures ranging from 30° C. to 300° C. The relatively low molecular weight of the products enables improved viscosity control for a wide variety of applications.