Patent application number | Description | Published |
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 |
20100152388 | In-Reactor Polymer Blends - This invention relates to in-reactor polymer blends comprising at least 60 mole % of propylene and from 0.01 to 10 mole % of at least one diene selected from the group of C | 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 |
20100234547 | Polymerization Catalysts, Methods of Making, Methods of Using, and Polyolefin Products Made Therefrom - Olefin polymerization catalyst systems including a high molecular weight catalyst compound and a low molecular weight catalyst compound, and methods of making same are provided. High molecular weight catalysts include metallocene catalysts and low molecular weight catalysts include non-metallocene compounds including biphenyl phenol compounds. Generally catalyst systems may include less than about 5.0 mol % of the high molecular weight catalyst compound relative to said low molecular weight catalyst. Methods for olefin polymerization including the aforementioned catalyst systems, and polyolefins and products made therefrom. | 09-16-2010 |
20100261861 | Polymerization Catalysts and Methods of Using the Same to Produce Polyolefin Products - Polymerization catalyst systems including three or more catalyst compounds are provided. Methods for olefin polymerization including the aforementioned catalyst systems are also provided. | 10-14-2010 |
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 |
20120271017 | Catalyst Systems Having a Tailored Hydrogen Response - A polymerization catalyst system and polymerization processes using the catalyst systems are disclosed. The polymerization catalyst systems may include a) a first catalyst compound, and b) a second catalyst compound, wherein the first catalyst compound comprises a biphenyl phenol compound having essentially no hydrogen response. | 10-25-2012 |
20130005908 | In-Reactor Polymer Blends - This invention relates to in-reactor polymer blends comprising at least 60 mole % of propylene and from 0.01 to 10 mole % of at least one diene selected from the group of C | 01-03-2013 |
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 |
20130085244 | Use of Temperature and Ethylene Partial Pressure to Introduce Long Chain Branching in High Density Polyethylene - The invention describes the preparation of long chain branching in high density polyethylene by using metallocene catalysts in the presence of ethylene. | 04-04-2013 |