Dow Global Technolgoies LLC

W. R. Grace Co.-Conn.

Union Carbide Chemicals & Plastics Technology Corporation

Union Carbide Chemicals And Plastics Company, Inc.

Tak W Leung

Tao Tao

Linfeng Chen

Kuanqiang Gao

David Robert Bryant

Ernst Billig

Xiaodong Huang

Thomas Carl Eisenschmid

Bernard Duane Dombek

James Clair Nicholson

Gary A Roth

John Michael Maher

Joseph N Coalter, Iii

Kelly Gonzalez

Clark C Williams

John Robert Briggs

Diane Lee Packett

John Kalevi Kaarto

James E Babin

Michael Gullo

Donald C Best

James X Shu

Bernard Leslie Shaw

Lingfeng Chen

Joseph N Coalter Iii

Joseph N Iii Coalter

Disclosed are catalyst compositions having an internal electron donor which includes a 3,6-di-substituted-1,2-phenylene aromatic diester. Ziegler-Natta catalyst compositions containing the present catalyst compositions exhibit very high hydrogen response, high activity, high selectivity and produce propylene-based olefins with high melt flow rate.

Production of high melt flow propylene-based polymer and product from same

Process for production of high melt flow propylene-based polymer and product from same

Disclosed are procatalyst compositions having an internal electron donor which include a substituted phenylene aromatic diester and optionally an electron donor component. Ziegler-Natta catalyst compositions containing the present procatalyst compositions exhibit high activity and produce propylene-based olefins with broad molecular weight distribution.

Procatalyst composition with substituted 1,2-phenylene aromatic diester internal donor and method

Disclosed are procatalyst compositions having an internal electron donor which includes a substituted amide ester and optionally an electron donor component. Ziegler-Natta catalyst compositions containing the present procatalyst compositions exhibit improved catalyst activity and/or improved catalyst selectivity and produce propylene-based olefins with broad molecular weight distribution.

Procatalyst composition with substituted amide ester internal electron donor

Disclosed herein are catalyst compositions and polymers, i.e., propylene-based polymers, produced therefrom. The present catalyst compositions contain an internal electron donor of an alkoxyalkyl 2-propenoate and optionally a mixed external electron donor. The present catalyst compositions improve catalyst selectivity and polymer stiffness. Polypropylene homopolymer produced from the present catalyst composition has a xylene solubles content less than 4 wt % and a Tgreater than 172.0&#xb0; C.

Procatalyst composition with alkoxyalkyl 2-propenoate internal electron donor and polymer from same

Disclosed herein are catalyst compositions and polymers, i.e., propylene-based polymers, produced therefrom. The present catalyst compositions include an internal electron donor with an alkoxypropyl ester. The present catalyst compositions improve catalyst selectivity. Propylene-based polymer produced from the present catalyst composition has a melt flow rate greater than 4 g/10 min.

Procatalyst composition with alkoxypropyl ester internal electron donor and polymer from same

Disclosed herein are processes for preparing procatalyst compositions with an internal electron donor containing greater than 4.5 wt % of a compounded alkoxyalkyl ester. Also disclosed are catalyst compositions containing the procatalyst composition and polymers, i.e., propylene-based polymers, produced therefrom. The present procatalyst compositions improve catalyst selectivity, catalyst activity, procatalyst morphology and polymer particle morphology, and improve hydrogen response during olefin polymerization.

Process for producing procatalyst composition with alkoxyalkyl ester internal electron donor and product

The present disclosure is directed to the production of substituted phenylene aromatic diesters and 5-tert-butyl-3-methyl-1,2-phenylene dibenzoate (or 'BMPD') in particular. The processes disclosed herein produce a liquid BMPD product. The liquid BMPD product unexpectedly creates production efficiencies by reducing the number of production steps, reducing the amount and/or number of reagents required for BMPD production. The liquid BMPD product may also be utilized in procatalyst production yielding similar production efficiencies. The procatalyst composition is subsequently used for olefin polymerization.

Production of substituted phenylene dibenzoate internal electron donor and procatalyst with same

Disclosed herein are procatalyst compositions, catalyst compositions and polymers, i.e., propylene-based polymers, produced therefrom. The present procatalyst compositions contain a halo-malonate and a 2-fluoro-malonate in particular. The present catalyst compositions improve catalyst selectivity, improve catalyst activity, and also improve hydrogen response during polymerization. Propylene-based polymer produced from the present catalyst composition has a melt flow rate greater than 50 g/10 min.

Catalyst composition with halo-malonate internal electron donor and polymer from same

A solid, hydrocarbon-insoluble, catalyst component useful in polymerizing olefins, said catalyst component containing magnesium, titanium, and halogen, and further containing an internal electron donor having a structure:[R&#x2014;O&#x2014;C(O)&#x2014;O&#x2014;]Rwherein Ris independently at each occurrence, an aliphatic or aromatic hydrocarbon, or substituted hydrocarbon group containing from 1 to 20 carbon atoms; x is 2-4; and Ris an aliphatic or aromatic hydrocarbon, or substituted hydrocarbon group containing from 1 to 20 carbon atoms, provided that there are from 3 to 4 atoms in the shortest chain connecting a first R&#x2014;O&#x2014;C(O)&#x2014;O&#x2014; group and a second R&#x2014;O&#x2014;C(O)&#x2014;O&#x2014; group.

Three and four atom bridged dicarbonate compounds as internal donors in catalysts for polypropylene manufacture

The present disclosure provides processes for the production of substituted phenylene aromatic diesters and the resultant compositions. The processes include reacting an aromatic diol with an aromatic carboxylic acid or a derivative thereof. The aromatic diol and/or the aromatic carboxylic acid (or derivative thereof) is/are substituted. The reaction forms a substituted phenylene aromatic diester with the structure (II): 

Production of substituted phenylene aromatic diesters and compositions

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Houston, TX, United States of America

Tak W Leung