Reliance Industries Limited

Priyanshu Bharatkumar Vyas

Virendrakumar Gupta

Virendra Kumar Gupta

Harshad Ramdas Patil

Dhananjay Ghelabhai Naik

Gurmeet Singh

Sukhdeep Kaur

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.

Nitrogen containing external donor system for propylene polymerization

The invention relates to a catalyst system for polymerization of olefins, the catalyst system comprising a titanium-containing procatalyst carrying internal electron donor(s), an organoaluminium cocatalyst and a mixture of external electron donors, the mixture comprising a carboxylic acid ester or derivatives thereof, an alkoxy silane and a nitrogen based compound. The invention also relates to a process for polymerization of olefin(s) and to the polyolefin synthesized by the process.

Catalyst system for polymerization of olefins

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Gujarat, India

Priyanshu Bharatkumar Vyas