Dekmezian
Armenag Dekmezian, Austin, TX US
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20110118370 | Foamable Thermoplastic Reactor Blends and Foam Article Therefrom - This invention relates to a foamable blend comprising an in-reactor polymer blend comprising: (a) a first propylene polymer component comprising 90 to 100 wt % propylene and from 0 to less than 10 wt % comonomer, said first propylene component having a Tm of 120° C. or more; and (b) a second propylene polymer component comprising from 30 to 90 wt % propylene and 70 to 10 wt % comonomer, said second propylene polymer having an Mw of 30,000 g/mol or more, and said second propylene-containing polymer having a crystallinity different by at least 5% from the first polymer, wherein the polymer blend, prior to combination with a foaming agent, has: (i) a Tm of at least 120° C.; (ii) a MFR of 10 dg/min or more; (iii) a tensile strength of at least 8 MPa; (iv) an elongation at break of at least 200%, and (v) a ratio of elongational viscosity at break to linear viscosity of 5 or more when the elongational viscosity is measured at a strain rate of 1 sec | 05-19-2011 |
20140309359 | Heterogeneous In-Situ Polymer Blend - A heterogeneous in-situ polymer blend comprising a continuous phase comprising a polypropylene having a crystallinity of at least 30% and a melting point temperature T | 10-16-2014 |
Armenag H. Dekmezian, Austin, TX US
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20100152360 | Thermoplastic Polyolefin In-Reactor Blends And Molded Articles Therefrom - This invention relates to a molded article comprising an in-reactor polymer blend comprising: (a) a first propylene polymer comprising 90 to 100 wt % propylene and from 0 to less than 10 wt % comonomer, said first propylene component having a Tm of 135° C. or more; and (b) a second propylene polymer comprising from 30 to 90 wt % propylene and 70 to 10 wt % comonomer, said second propylene polymer having an Mw of 30,000 g/mol or more, and said second propylene-containing polymer having a crystallinity different by at least 5% from the first polymer, wherein the polymer blend has: | 06-17-2010 |
20100152382 | Thermoplastic Olefin Compositions - An in-or polymer blend including (a) a propylene-containing first polymer; and (b) propylene-containing second polymer having a different crystallinity from the first polymer. The polymer blend has a melting temperature, Tm, of at least 135° C., a melt flow rate of at least 70 dg/min, a tensile strength of at least 8 MPa, an elongation at break of at least 300%. | 06-17-2010 |
20100152383 | Thermoplastic Elastomer Polyolefin In-Reactor Blends And Molded Articles Therefrom - This invention relates to an in-reactor polymer blend comprising: (a) a first ethylene-containing polymer having a density of greater than 0.90 g/cm | 06-17-2010 |
20100152390 | Heterogeneous In-Reactor Polymer Blends - An in-reactor polymer blend comprises (a) a propylene-containing first polymer; and (b) an ethylene-containing second polymer such that the polymer blend comprises between about 50 wt % and about 80 wt % units derived from ethylene and between about 50 wt % and about 20 wt % units derived from propylene. The blend is substantially free of dienes and the content of ethylene in the second polymer in the form of ethylene-ethylene-ethylene triads is at least 40%. The second polymer contains at least 0.1 branch having 8 or more carbon atoms per 10,000 carbons. In addition, the blend has a strain hardening index of at least 1.8, a shear thinning slope in the plot of log(dynamic viscosity) versus log(frequency) of less than −0.2 and exhibits at least two peaks when subjected to Differential Scanning Calorimetry (first melt) corresponding to a first melting point of at least 150° C. and a second melting point of at least 40° C. such that the difference between the first and second melting temperatures is at least 20° C. | 06-17-2010 |
20110196101 | Homogeneous Polymer Blend and Process of Making the Same - A homogeneous polymer blend comprises a thermoplastic first polymer having a crystallinity of at least 30%; and a second polymer having a crystallinity of more than 5% and being at least partially cross-linked. | 08-11-2011 |
20120149846 | Thermoplastic Elastomer Polyolefin In-Reactor Blends and Molded Articles Therefrom - This invention relates to an in-reactor polymer blend comprising: (a) a first ethylene-containing polymer having a density of greater than 0.90 g/cm | 06-14-2012 |
20130059981 | THERMOPLASTIC ELASTOMER POLYOLEFIN IN-REACTOR BLENDS AND MOLDED ARTICLES THEREFROM - This invention relates to an in-reactor polymer blend comprising: (a) a first ethylene-containing polymer having a density of greater than 0.90 g/cm | 03-07-2013 |
20140309358 | Vulcanized Polymer Blends - A heterogeneous vulcanized polymer blend comprising a continuous phase comprising a thermoplastic polypropylene having a crystallinity of at least 30% and a dispersed phase comprising particles of an elastomeric copolymer dispersed in the continuous phase and having an average particle size of less than 5 micron. The elastomeric copolymer has a crystallinity of less than 20% and is at least partially cross-linked such that no more than about 80 wt % of the elastomeric copolymer is extractable in cyclohexane at 23° C. | 10-16-2014 |
Armenag H. Dekmezian, Kingwood, TX US
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20110169199 | Process For Preparing Articles - The present invention relates to a process for preparing a thermoplastic vulcanizate (TPV) comprising: contacting a thermoplastic polymer, a cross-linkable elastomer, at least one curative, and at least one cure activator in a solvent to form Composition A. The solvent is then removed, and thereafter the cross-linkable elastomer is at least partially cured. The average particle size of the cross-linkable elastomer is 10 microns or less after the solvent is removed. | 07-14-2011 |
20110196102 | Heterogeneous Polymer Blend With Continuous Elastomeric Phase And Process Of Making The Same - A heterogeneous polymer blend comprises a dispersed phase comprising a thermoplastic first polymer having a crystallinity of at least 30% and a continuous phase comprising a second polymer different from the first polymer. The second polymer has a crystallinity of less than 20% and is at least partially cross-linked. | 08-11-2011 |
20120045600 | Solution Blending Process for Preparing Thermoplastic Vulcanizates - This invention relates to the preparation of thermoplastic vulcanizates (TPVs) with unique morphological features, more specifically, this invention relates to a method for preparing TPV compositions wherein the mixing of plastomers and elastomers are carried out in solvent with curatives to induce cross-linking. | 02-23-2012 |
Armenag Hagop Dekmezian, Kingwood, TX US
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20090069475 | Multiple catalyst system for olefin polymerization and polymers produced therefrom - This invention relates to a polymer comprising one or more C3 to C40 olefins, optionally one or more diolefins, and less than 15 mole % of ethylene, where the polymer has: | 03-12-2009 |
20120095157 | Multiple Catalyst System For Olefin Polymerization And Polymers Produced Therefrom - The present invention describes polymer comprising one or more C3 to C40 olefins and having a Mw of 100,000 or less and a Dot T-Peel of 1 Newton or more. The polymer may have a branching index (g′) of 0.95 or less measured at the Mz of the polymer, and a heat of fusion of 1 to 70 J/g. Also described are polymers of homopolypropylene or a copolymer of propylene and up to 5 mole % ethylene having: an isotactic run length of 1 to 30 as determined by Carbon 13 NMR and a percent of r dyad of greater than 20%, preferably from 20 to 70% as determined by Carbon 13 NMR. Also described are methods of making these and other polymers. | 04-19-2012 |
Armenag Hagop Dekmezian, Austin, TX US
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20140066567 | Multiple Catalyst System for Olefin Polymerization and Polymers Produced Therefrom - This invention relates to an adhesive comprising an olefin polymer composition comprising a first amorphous polymer having a crystallinity of 5% or less, prepared with a first catalyst; and a second crystalline polymer, differing in chemical and physical properties from the first polymer, having a crystallinity of 20% or more, prepared with a second catalyst; and where the olefin polymer composition has a Dot T-Peel of 1 Newton or more on Kraft paper; an Mw of at least 7,000 to 80,000; a branching index (g′) of from 0.4 to 0.90 measured at the Mz of the polymer composition; and a crystallinity of between 5 and 40%. | 03-06-2014 |