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:
Nov. 02, 2021
Filed:
Oct. 09, 2018
Applicant:
Univation Technologies, Llc, Houston, TX (US);
Inventors:
Bo Liu, Lake Jackson, TX (US);
Mark G. Goode, South Charleston, WV (US);
Assignee:
Univation Technologies, LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 210/02 (2006.01); C08F 2/01 (2006.01); C08F 2/34 (2006.01); C08F 4/69 (2006.01);
U.S. Cl.
CPC ...
C08F 210/02 (2013.01); C08F 2/01 (2013.01); C08F 2/34 (2013.01); C08F 4/69 (2013.01);
Abstract
A method of selectively transitioning a polymerization process making an ethylene/alpha-olefin copolymer in such a way that melt elasticity of the copolymer is substantially changed without changing comonomer and without substantially changing density of the copolymer. A method of compensating a reactor temperature-induced change in melt elasticity with an inverse change in H2/C2 gas molar ratio. Also, use of process control variable(s) to selectively change the melt elasticity.