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:
Feb. 06, 2018
Filed:
Dec. 13, 2013
Reliance Industries Limited, Mumbai, IN;
Krishna Renganath Sarma, Gujarat, IN;
Yogesh Popatrao Patil, Gujarat, IN;
Viralkumar Patel, Gujarat, IN;
Mahuya Bagui, Gujarat, IN;
Ajit Behari Mathur, Gujarat, IN;
Raksh Vir Jasra, Gujarat, IN;
Suketu Vakil, Mumbai, IN;
Vijay Shivaji Kadam, Maharashtra, IN;
Uma Sankar Satpathy, Gujarat, IN;
Satya Srinivasa Rao Gandham, Gujarat, IN;
Jyotindra Bachubhai Patel, Gujarat, IN;
Mitul Sureshchandra Sheth, Gujarat, IN;
RELIANCE INDUSTRIES LIMITED, Mumbai, IN;
Abstract
The present disclosure provides a heterogeneous Ziegler-Natta catalyst system to be used in the preparation of ultra-high molecular weight polymers (UHMWP). The system includes at least one procatalyst, at least one co-catalyst, at least one hydrocarbon medium and at least one external donor, wherein the ratio of elemental magnesium to elemental titanium to halide, in the procatalyst, is 1:1.3:3.7; the ratio of elemental aluminum, present in the co-catalyst to elemental titanium, present in the procatalyst, ranges between 6:1 and 12:1; and the ratio of elemental silicon, present in the external donor to elemental titanium, present in the procatalyst, ranges between 1:10 and 10:1. The present disclosure also provides a process for preparation of UHMWPE using the heterogeneous Ziegler-Natta catalyst system of the present disclosure.