Patent application number | Description | Published |
20100168625 | SYSTEM FOR PROVIDING FLUID FLOW TO NERVE TISSUES - Provided is an apparatus that includes a nerve conduit, a manifold and a support structure for providing a reduced pressure. Also provided is a system that includes a source of reduced pressure, a nerve conduit, a manifold, a support structure and a conduit for providing fluid communication between the manifold support and the source of reduced pressure. Additionally provided is a method that includes implanting the above nerve conduit, manifold and support structure at a site of damaged nerve tissue and applying a reduced pressure to the manifold thereby stimulating repair or regrowth of nerve tissue. | 07-01-2010 |
20100168689 | SYSTEMS FOR PROVIDING FLUID FLOW TO TISSUES - Provided is an apparatus that includes a scaffold with a gel or liquid composition deposed on at least a portion of a luminal surface, the gel or liquid composition adapted to include microbubbles. Also provided is a system that includes a source of reduced pressure, the above scaffold, a manifold adjacent the scaffold, and a conduit for providing fluid communication between the manifold and the source of reduced pressure. Additionally provided is a method that includes implanting the above scaffold at the tissue site and disrupting a substantial portion of the microbubbles to induce fluid flow to the scaffold. Further provided is an apparatus that includes a scaffold that comprises a slowly degradable material and a quickly degradable material. Additionally provided is a system for coupling nerve tissue and a microchip assembly. | 07-01-2010 |
20100168720 | SYSTEM FOR PROVIDING FLUID FLOW TO NERVE TISSUES - Provided is an apparatus that includes a nerve conduit and a nested manifold for providing a reduced pressure. Also provided is a system that includes a source of reduced pressure, a nerve conduit and nested manifold, and a conduit for providing fluid communication between the manifold and the source of reduced pressure. Additionally provided is a method that includes implanting the above nerve conduit and manifold at a site of damaged nerve tissue and applying a reduced pressure to the manifold thereby stimulating repair or regrowth of nerve tissue. | 07-01-2010 |
20100168867 | SYSTEMS FOR INDUCING FLUID FLOW TO STIMULATE TISSUE GROWTH - Provided are apparatuses, systems, and methods for treating tissue at a tissue site in a mammal that includes a scaffold adapted to be disposed adjacent to the tissue site and to be fluidly coupled to a blood vessel of the mammal for receiving blood therefrom. Additionally, a scaffold is provided that includes a charged surface comprising a streaming potential. | 07-01-2010 |
20100179515 | TISSUE ROLL SCAFFOLDS - An apparatus and system for treating a wound having a cavity is disclosed. The apparatus comprises a scaffold including a scaffold lamina and a tissue lamina wherein the scaffold lamina forms a laminate in fluid communication with the tissue lamina. The laminate is rolled into a generally cylindrical shape having two end surfaces. The apparatus further comprises a manifold having a port for coupling to a source of reduced pressure and that is positioned in fluid communication with the scaffold to provide reduced pressure to the scaffold lamina and the wound. The apparatus also comprises a drape formed of substantially impermeable material to cover the scaffold and the manifold within the wound. A method for treating a wound having a cavity is also disclosed and comprises positioning a scaffold lamina adjacent a tissue lamina to form a laminate in fluid communication with the tissue lamina, rolling the laminate into a generally cylindrical shape having two end surface, and positioning the scaffold within the cavity of the wound to provide reduced pressure to the wound. The method further comprises positioning a manifold in fluid communication with the scaffold to provide reduced pressure to the scaffold lamina and the wound. | 07-15-2010 |
20110230809 | PATTERNED NEO-EPITHELIALIZATION DRESSINGS, SYSTEMS, AND METHODS - Systems, methods, and apparatuses are presented that involve forming patterns on neo-epithelium that allow increased functionality and may more nearly resemble the original epithelium. In one instance, a patterned neo-epithelium dressing for treating a tissue site having granulation tissue includes an interface member for placing proximate the granulation tissue and a plurality of three-dimensional features formed on a second, patient-facing side of the interface member. Other systems, methods, and apparatuses are disclosed. | 09-22-2011 |
20110230848 | EPITHELIALIZATION METHODS, DRESSINGS, AND SYSTEMS - Methods, dressings, and systems for promoting epithelialization of a wound or other tissue are presented. The methods, dressings, and systems help form simulated rete pegs. In one instance, an epithelialization dressing is disclosed that may include a dressing body having a plurality of projections. A plurality of apertures is formed on a portion of the dressing body. The dressing helps manage fluids on the wound and the projections form cavities into which epithelial tissue migrates to from epithelial columns that function like rete pegs. Other dressings, methods, and systems are disclosed. | 09-22-2011 |
20120259264 | SYSTEMS FOR INDUCING FLUID FLOW TO STIMULATE TISSUE GROWTH - Provided are apparatuses, systems, and methods for treating tissue at a tissue site in a mammal that includes a scaffold adapted to be disposed adjacent to the tissue site and to be fluidly coupled to a blood vessel of the mammal for receiving blood therefrom. Additionally, a scaffold is provided that includes a charged surface comprising a streaming potential. | 10-11-2012 |
20120283675 | SYSTEM FOR PROVIDING FLUID FLOW TO NERVE TISSUES - Provided is an apparatus that includes a nerve conduit, a manifold and a support structure for providing a reduced pressure. Also provided is a system that includes a source of reduced pressure, a nerve conduit, a manifold, a support structure and a conduit for providing fluid communication between the manifold support and the source of reduced pressure. Additionally provided is a method that includes implanting the above nerve conduit, manifold and support structure at a site of damaged nerve tissue and applying a reduced pressure to the manifold thereby stimulating repair or regrowth of nerve tissue. | 11-08-2012 |
20130096492 | STIMULATION OF CARTILAGE FORMATION USING REDUCED PRESSURE TREATMENT - System and methods for stimulating cartilage formation at a first tissue site through a second tissue site is presented. The system includes a fluid source for supplying a therapeutic solution, a reduced pressure source for supplying reduced pressure, a fluid delivery manifold for deploying adjacent the first tissue site, and a vacuum manifold for deploying within the second tissue site The fluid delivery manifold extends between a proximal end fluidly coupled to the fluid supply and a distal end having at least one aperture for delivering the therapeutic solution to the defect adjacent the articulating surface of the first tissue site. The vacuum manifold extends between a proximal end fluidly coupled to the reduced pressure source and a distal end having at least one aperture for delivering the reduced pressure to the first tissue site adjacent the opposing surface of the first tissue site | 04-18-2013 |
20130237934 | SYSTEM FOR PROVIDING FLUID FLOW TO NERVE TISSUES - Provided is an apparatus that includes a nerve conduit, a manifold and a support structure for providing a reduced pressure. Also provided is a system that includes a source of reduced pressure, a nerve conduit, a manifold, a support structure and a conduit for providing fluid communication between the manifold support and the source of reduced pressure. Additionally provided is a method that includes implanting the above nerve conduit, manifold and support structure at a site of damaged nerve tissue and applying a reduced pressure to the manifold thereby stimulataing repair or regrowth of nerve tissue. | 09-12-2013 |
20140094928 | SYSTEMS FOR INDUCING FLUID FLOW TO STIMULATE TISSUE GROWTH - Provided are apparatuses, systems, and methods for treating tissue at a tissue site in a mammal that includes a scaffold adapted to be disposed adjacent to the tissue site and to be fluidly coupled to a blood vessel of the mammal for receiving blood therefrom. Additionally, a scaffold is provided that includes a charged surface comprising a streaming potential. | 04-03-2014 |
Patent application number | Description | Published |
20140276251 | SYSTEMS FOR PROVIDING FLUID FLOW TO TISSUES - Provided is an apparatus that includes a scaffold with a gel or liquid composition deposed on at least a portion of a luminal surface, the gel or liquid composition adapted to include microbubbles. Also provided is a system that includes a source of reduced pressure, the above scaffold, a manifold adjacent the scaffold, and a conduit for providing fluid communication between the manifold and the source of reduced pressure. Additionally provided is a method that includes implanting the above scaffold at the tissue site and disrupting a substantial portion of the microbubbles to induce fluid flow to the scaffold. Further provided is an apparatus that includes a scaffold that comprises a slowly degradable material and a quickly degradable material. Additionally provided is a system for coupling nerve tissue and a microchip assembly. | 09-18-2014 |
20140276493 | WOUND HEALING COMPOSITIONS - Provided herein are biologically active solution compositions comprising one or more sacrificial proteolytic enzyme substrates, one or more preservatives, and one or more antimicrobial agents and methods of using the solution compositions to treat tissue sites, in particular chronic wounds. The compositions may be used in conjunction with negative pressure wound therapy to treat tissue sites. | 09-18-2014 |
20140277001 | SYSTEM FOR PROVIDING FLUID FLOW TO NERVE TISSUES - Provided is an apparatus that includes a nerve conduit and a nested manifold for providing a reduced pressure. Also provided is a system that includes a source of reduced pressure, a nerve conduit and nested manifold, and a conduit for providing fluid communication between the manifold and the source of reduced pressure. Additionally provided is a method that includes implanting the above nerve conduit and manifold at a site of damaged nerve tissue and applying a reduced pressure to the manifold thereby stimulating repair or regrowth of nerve tissue. | 09-18-2014 |
20140323940 | EPITHELIALIZATION METHODS, DRESSINGS, AND SYSTEMS - Methods, dressings, and systems for promoting epithelialization of a wound or other tissue are presented. The methods, dressings, and systems help form simulated rete pegs. In one instance, an epithelialization dressing is disclosed that may include a dressing body having a plurality of projections. A plurality of apertures is formed on a portion of the dressing body. The dressing helps manage fluids on the wound and the projections form cavities into which epithelial tissue migrates to from epithelial columns that function like rete pegs. Other dressings, methods, and systems are disclosed. | 10-30-2014 |
20150328381 | TISSUE ROLL SCAFFOLDS - An apparatus and system for treating a wound having a cavity is disclosed. The apparatus comprises a scaffold including a scaffold lamina and a tissue lamina wherein the scaffold lamina forms a laminate in fluid communication with the tissue lamina. The laminate is rolled into a generally cylindrical shape having two end surfaces. The apparatus further comprises a manifold having a port for coupling to a source of reduced pressure and that is positioned in fluid communication with the scaffold to provide reduced pressure to the scaffold lamina and the wound. The apparatus also comprises a drape formed of substantially impermeable material to cover the scaffold and the manifold within the wound. A method for treating a wound having a cavity is also disclosed and comprises positioning a scaffold lamina adjacent a tissue lamina to form a laminate in fluid communication with the tissue lamina, rolling the laminate into a generally cylindrical shape having two end surface, and positioning the scaffold within the cavity of the wound to provide reduced pressure to the wound. The method further comprises positioning a manifold in fluid communication with the scaffold to provide reduced pressure to the scaffold lamina and the wound. | 11-19-2015 |
Patent application number | Description | Published |
20100121111 | Alkoxylations of High Melting Point Substrates in Ketone Solvents - Substrate or starting compounds which have high melting points, for instance, having a melting point of 150° C. or higher and having at least one active hydrogen may be reacted with one or more alkylene oxide in a ketone solvent at reduced temperatures compared with conventional, molten methods to give an adduct product having reduced color. By at least partially alkoxylating the substrate, its potential for crystallization is disrupted and the partially alkoxylated substrate has a lower melting point than the original substrate permitting it to be more readily further alkoxylated at the reaction temperature. Suitable ketone solvents include, but are not necessarily limited to, methyl isobutyl ketone, diethyl ketone, methyl ethyl ketone, and mixtures thereof. The alkoxylation reaction may be conducted at a temperature in the range of about 30 to about 140° C. Suitable catalysts may include tertiary amines or caustic compounds such as NaOH and KOH. | 05-13-2010 |
20110061292 | No-Sulfur Fuel Lubricity Additive - Reacting an alkylene carbonate, such as ethylene carbonate, with dimer acid in the presence of a catalyst, such as a tertiary amine catalyst, gives a dimer acid diester having essentially no sulfur, and thus may be added to ultra-low sulfur diesel fuel downstream of a refinery. The diester enhances the lubricity properties of hydrocarbon fuels, increases their service life and fuel efficiency. The manufacturing process time may be decreased significantly compared with a process using ethylene glycol instead of ethylene carbonate, and much less ethylene glycol by-product results. | 03-17-2011 |
20120317876 | No-Sulfur Fuel Lubricity Additive - Reacting an alkylene carbonate, such as ethylene carbonate, with dimer acid in the presence of a catalyst, such as a tertiary amine catalyst, gives a dimer acid diester having essentially no sulfur, and thus may be added to ultra-low sulfur diesel fuel downstream of a refinery. The diester enhances the lubricity properties of hydrocarbon fuels, increases their service life and fuel efficiency. The manufacturing process time may be decreased significantly compared with a process using ethylene glycol instead of ethylene carbonate, and much less ethylene glycol by-product results. | 12-20-2012 |
20140142345 | ALKOXYLATION OF CRUDE BISPHENOL A - Crude bisphenol A containing a ketone solvent remaining form its manufacture and having a melting point of 150° C. or higher may be reacted with one or more alkylene oxide, in the absence of any added ketone solvent, at reduced temperatures compared with conventional, molten methods to give a fully alkoxylated adduct product having reduced color. By at least partially alkoxylating the bisphenol A, its potential for crystallization is disrupted and the partially alkoxylated bisphenol A has a lower melting point than the original bisphenol A permitting it to be more readily further alkoxylated at the reaction temperature. The alkoxylation reaction may be conducted at a temperature in the range of about 30 to about 140° C. Suitable catalysts may include tertiary amines or caustic compounds such as NaOH and KOH. | 05-22-2014 |
20140231311 | LOW VISCOSITY METAL-BASED HYDROGEN SULFIDE SCAVENGERS - A composition useful for scavenging hydrogen sulfide by admixing metal carboxylates which have high viscosity due to polymerization and a viscosity improver selected from the group consisting of glycol ethers having from about 4 to about 10 carbons and alkyl alcohols having from about 1 to about 4 carbons. | 08-21-2014 |
Patent application number | Description | Published |
20100130709 | Procatalyst Composition Including Silyl Ester Internal Donor and Method - The present disclosure provides silyl esters and silyl diol esters suitable as internal electron donors in procatalysts for polymer production. Disclosed are procatalyst compositions formed from a procatalyst precursor and an internal electron donor that is a silyl ester or a silyl diol ester. The procatalyst compositions can be used with a cocatalyst and optionally an external electron donor and/or an activity limiting agent to form a Ziegler-Nana catalyst composition. The present catalyst compositions exhibit high catalyst activity and form olefin-based polymers with broad molecular weight distribution, favorable flexural modulus, and high isotacticity. | 05-27-2010 |
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 |
20100222530 | Procatalyst Composition with Substitute 1,2-Phenylene Aromatic Diester Internal Donor and Method - 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. | 09-02-2010 |
20100267911 | Procatalyst Composition with Silyl Glutarate and Method - Disclosed are procatalyst compositions having an internal electron donor which includes a silyl glutarate and optionally an electron donor component. Ziegler-Natta catalyst compositions containing the present procatalyst compositions exhibit strong activity and produce propylene-based olefins with high isotacticity. | 10-21-2010 |
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 |
20110130529 | THREE AND FOUR ATOM BRIDGED DICARBONATE COMPOUNDS AS INTERNAL DONORS IN CATALYSTS FOR POLYPROPYLENE MANUFACTURE - 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: | 06-02-2011 |
20110130530 | TWO ATOM BRIDGED DICARBONATE COMPOUNDS AS INTERNAL DONORS IN CATALYSTS FOR POLYPROPYLENE MANUFACTURE - 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: | 06-02-2011 |
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 |
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 |
20130035227 | Procatalyst Composition with Substituted 1,2-Phenylene Aromatic Diester Internal Donor and Method - 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. | 02-07-2013 |
20130053525 | Production of Substituted Phenylene Dibenzoate Internal Electron Donor and Procatalyst with Same - 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. | 02-28-2013 |
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 |
20130245306 | TWO ATOM BRIDGED DICARBONATE COMPOUNDS AS INTERNAL DONORS IN CATALYSTS FOR POLYPROPYLENE MANUFACTURE - A compound suitable for use as an internal electron donor having a structure: | 09-19-2013 |
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 |
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 |
20150299346 | PROCATALYST COMPOSITION WITH SUBSTITUTED 1,2-PHENYLENE AROMATIC DIESTER INTERNAL DONOR AND METHOD - 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. | 10-22-2015 |
20150344597 | PRODUCTION OF SUBSTITUTED PHENYLENE DIBENZOATE INTERNAL ELECTRON DONOR AND PROCATALYST WITH SAME - 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. | 12-03-2015 |