Title of Invention	"METHODS OF PREPARING A POLYMERIZATION CATALYST"
Abstract	A method comprising contacting a support""with a chromium-containing compound and a tin-containing compound to produce a catalyst precursor, and activating the catalyst precursor in a temperature range of from about 400 °C to about 700 °C to produce a polymerization catalyst. A method comprising contacting a support with a chromium-containing compound and a tin-containing compound to produce a catalyst precursor, activating the catalyst precursor in a temperature range of from about 400 °C to about 700 °C to produce a polymerization catalyst, and contacting the polymerization catalyst with ethylene in a reaction zone under suitable reaction conditions to form polyethylene wherein the molecular weight distribution of the polyethylene is broadened.

Title of Invention

"METHODS OF PREPARING A POLYMERIZATION CATALYST"

Abstract

A method comprising contacting a support""with a chromium-containing compound and a tin-containing compound to produce a catalyst precursor, and activating the catalyst precursor in a temperature range of from about 400 °C to about 700 °C to produce a polymerization catalyst. A method comprising contacting a support with a chromium-containing compound and a tin-containing compound to produce a catalyst precursor, activating the catalyst precursor in a temperature range of from about 400 °C to about 700 °C to produce a polymerization catalyst, and contacting the polymerization catalyst with ethylene in a reaction zone under suitable reaction conditions to form polyethylene wherein the molecular weight distribution of the polyethylene is broadened.

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Patent Number

272794

Indian Patent Application Number

7542/DELNP/2010

PG Journal Number

18/2016

Publication Date

29-Apr-2016

Grant Date

27-Apr-2016

Date of Filing

26-Oct-2010

Name of Patentee

CHEVRON PHILLIPS CHEMICAL COMPANY LP

Applicant Address

10001 SIX PINES DRIVE THE WOODLANDS, TEXAS 77380 UNITED STATES OF AMERICA

Inventors:

#	Inventor's Name	Inventor's Address
1	KATHY S. COLLINS	3915 SILVER LAKE DRIVE BARTLESVILLE, OKLAHOMA 74006, UNITED STATES OF AMERICA
2	MAX P. MCDANIEL	1601 MELMART DRIVE BARTLESVILLE, OKLAHOMA 74006, UNITED STATES OF AMERICA

PCT International Classification Number

C08F

PCT International Application Number

PCT/US2009/002594

PCT International Filing date

2009-04-29

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1	12/113,061	2008-04-30	U.S.A.