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:
Jan. 18, 2000
Filed:
Apr. 22, 1998
Sabyasachi Sinha Ray, New Delhi-110044, IN;
Deepak Kumar Tuli, Faridabad-121006, IN;
Meeta Sharma, Faridabad-121006, IN;
Madan Mohan Rai, Faridabad, IN;
Sobhan Ghosh, Faridabad, IN;
Akhilesh Kumar Bhatnagar, Faridabad-121006, IN;
Prabhat Kumar Saxena, Pure 411 008, IN;
Swaminathan Sivaram, Pure 411 008, IN;
Other;
Abstract
A process for the preparation of heterogeneous zirconium based catalyst for polymerization of alpha-olefins to super high molecular weight poly (alpha-olefins). The process comprises in mixing zirconium alcholate or phenolate with anhydrous magnesium chloride in the presence of a solvent. The mixture is heated, then cooled and an organoaluminum compound is added. Optionally, an electron donor compound is added and heated to obtain a black slurry, which is cooled and then washed with a hydrocarbon diluent.