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.

Date of Patent:
Mar. 28, 2023

Filed:

Feb. 07, 2019
Applicant:

Reliance Industries Limited, Mumbai, IN;

Inventors:

Virendrakumar Gupta, Navi Mumbai, IN;

Robert Grubbs, Pasadena, CA (US);

Sunil Dhamaniya, Jaipur, IN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/649 (2006.01); C08F 4/651 (2006.01); C08F 110/06 (2006.01); C08F 4/659 (2006.01); C08F 2/38 (2006.01); C08F 4/654 (2006.01); C08F 10/02 (2006.01); C08F 10/06 (2006.01);
U.S. Cl.
CPC ...
C08F 4/65912 (2013.01); C08F 2/38 (2013.01); C08F 4/6493 (2013.01); C08F 4/6494 (2013.01); C08F 4/654 (2013.01); C08F 10/02 (2013.01); C08F 10/06 (2013.01);
Abstract

The present disclosure relates to a Ziegler-Natta catalyst system with self-extinguishing properties suitable for olefin polymerization. The catalyst system of the present disclosure comprises a pro-catalyst, a co-catalyst, and an external donor having a mixture of a selectivity control agent and an activity control agent. The catalyst system of the present disclosure is adapted to prevent the temperature of the polymerization reaction to go beyond the softening temperature of the polymer, thereby exhibiting the self-extinguishing properties.


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