US 2014/0155560 A1 · NITROGEN CONTAINING EXTERNAL DONOR SYSTEM FOR PROPYLENE POLYMERIZATION

Abstract

The present invention discloses new class of nitrogen containing external donor systems. These donor systems are used in titanium supported on magnesium dichloride pro-catalyst system for polymerization of propylene. The external donor systems of the present invention in combination with silane show the kinetics control for diester catalyst polymerization process along with stereo regularity control of product. The polypropylene produced using nitrogen containing external donor systems of the present invention have broad molecular weight distribution.

Claims13

Dependent claims

A catalyst system for polymerization of propylene comprising:

(a) a titanium supported on magnesium dichloride pro-catalyst carrying internal donor;
(b) organoaluminium co-catalyst;
and
(c) external donor comprising pentamethyldiethyltriamine and an alkoxy silane.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

14/116,467Filed 7 May 2012

Priority

IN 1424/MUM/20119 May 2011

Published

5 Jun 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

C08F 110/06
Monomers containing three or four carbon atoms: propene
C08F 10/06
Monomers containing three or four carbon atoms: propene
Y02P 20/52
Improvements relating to the production of bulk chemicals: using catalysts, e.g. selective catalysts
C08F
Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds

Nitrogen containing external donor system for propylene polymerization

Life of this patent

Nitrogen containing external donor system for propylene polymerization

Life of this patent

Abstract

Claims13