Patent application number | Description | Published |
20100174105 | Production of Substituted Phenylene Aromatic Diesters - The present disclosure is directed to the production of 5-tert-butyl-3-methyl-1,2-phenylene dibenzoate and the purification thereof. Synthesis pathways for a precursor to 5-tert-butyl-3-methyl-1,2-phenylene dibenzoate are provided. The precursor is 5-tert-butyl-3-methylcatechol. | 07-08-2010 |
20100204506 | Production of Substituted Phenylene Aromatic Diesters and Compositions - 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): | 08-12-2010 |
20100273966 | Procatalyst Composition with Adamantane and Method - Disclosed are procatalyst compositions having an internal electron donor which includes an adamantanedicarboxylate and optionally an electron donor component. Ziegler-Natta catalyst compositions containing the present procatalyst compositions produce propylene-based olefins with broad molecular weight distribution. | 10-28-2010 |
20100301059 | Thermoformed Article with High Stiffness and Good Optics - Disclosed are thermoformed articles composed of propylene homopolymer containing a substituted phenylene aromatic diester. The thermoformed articles have high stiffness, good compression strength, excellent processability, and excellent optics. | 12-02-2010 |
20110152424 | GAS-PHASE POLYMERIZATION PROCESS HAVING MULTIPLE FLOW REGIMES - The present invention relates to an improvement for gas phase olefin polymerization process under two or more different flow regimes. The process involves adding a mixed electron donor system to a reactor having two or more different flow regimes, wherein the mixed electron donor system comprises at least one selectivity control agent and at least one activity limiting agent. The invention is particularly well suited for reactor systems which include a regime characterized by having a low-velocity or high-solid holdup, which have been reported to have operational problems such as particle agglomeration and formation of polymer “chunks”. | 06-23-2011 |
20120157295 | Process for Producing Procatalyst Composition with Alkoxyalkyl Ester Internal Electron Donor and Product - 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. | 06-21-2012 |
20120157296 | Catalyst Composition with Halo-Malonate Internal Electron Donor and Polymer From 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. | 06-21-2012 |
20120157642 | Catalyst Composition with Alkoxyalkyl Ester 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 a compounded alkoxyalkyl ester and optionally a mixed external electron donor. The present catalyst compositions improve catalyst selectivity, improve catalyst activity, and/or improve hydrogen response. Propylene-based polymer produced from the present catalyst composition has a melt flow rate greater than 10 g/10 min. | 06-21-2012 |
20120157643 | 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 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 T | 06-21-2012 |
20120157645 | Procatalyst Composition with Alkoxypropyl Ester 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. | 06-21-2012 |
20120316299 | Amide Ester Internal Electron Donor and Process - Disclosed is a process for producing a procatalyst composition having an amide ester internal electron donor. The process includes pre-halogenating a procatalyst precursor before reaction with the amide ester and forming the procatalyst composition. Ziegler-Natta catalyst compositions containing the present procatalyst composition exhibit improved catalyst activity and/or improved catalyst selectivity and produce propylene-based olefins with broad molecular weight distribution. | 12-13-2012 |
20120322962 | Procatalyst Composition with Substituted Amide Ester Internal Electron Donor - 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. | 12-20-2012 |
20120322964 | Halogenated Amide Ester and Internal Electron Donor with Same - Disclosed are halogenated amide esters that are suitable as internal electron donors in procatalyst compositions. 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. | 12-20-2012 |
20130005923 | PROCESS FOR GAS-PHASE POLYMERIZATION HAVING HIGH BED BULK DENSITY - The present invention relates to an improvement for gas-phase olefin polymerization process having relatively high bed bulk density. The improvement involves the use of mixed external electron donors when polymerizing propylene in a gas-phase reactor having a polymer bed with a bulk density greater than 128 kg/m | 01-03-2013 |
20130150234 | Catalyst Composition with Halo-Malonate Internal Electron Donor and Polymer From 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. | 06-13-2013 |
20130225398 | Process for Producing Procatalyst Composition with Alkoxyalkyl Ester Internal Electron Donor and Product - 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. | 08-29-2013 |
20130261273 | Process for Production of High Melt Flow Propylene-Based Polymer and Product from Same - 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. | 10-03-2013 |
20130289228 | Procatalyst Composition with Alkoxypropyl Ester 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. | 10-31-2013 |
20130289231 | Catalyst Composition with Alkoxyalkyl Ester 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 a compounded alkoxyalkyl ester and optionally a mixed external electron donor. The present catalyst compositions improve catalyst selectivity, improve catalyst activity, and/or improve hydrogen response. Propylene-based polymer produced from the present catalyst composition has a melt flow rate greater than 10 g/10 min. | 10-31-2013 |
20130338321 | Process for Improving Bulk Density with Multi-Contact Procatalyst and Product - Disclosed herein are processes for preparing procatalyst compositions which include multiple contact steps in the presence of a substituted phenylene aromatic diester and at least one other internal electron donor. The multi-contact procatalyst compositions produced from the present processes improve polymer properties and polymerization parameters. In particular, the present multi-contact procatalyst compositions improve polymer bulk density. | 12-19-2013 |
20140012035 | Production of Substituted Phenylene Aromatic Diesters - Synthesis pathways for a precursor to 5-tert-butyl-3-methyl-1, 2-phenylene dibenzoate are provided. The precursor is methylcatechol and/or 5-tert-butyl-3-methylcatechol. | 01-09-2014 |
20140046009 | 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 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 T | 02-13-2014 |
20140163184 | Procatalyst Composition with Substituted Amide Ester Internal Electron Donor - 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. | 06-12-2014 |
20140274668 | ENHANCED PROCATALYST COMPOSITION AND PROCESS - Disclosed herein are processes for preparing procatalyst compositions and polymers, i.e., propylene-based polymers, produced therefrom. The present procatalyst compositions improve catalyst selectivity and also increase the bulk density of the formant polymer. | 09-18-2014 |