Patent application number | Description | Published |
20080287588 | Thermoplastic elastomer compositions, methods for making the same, and articles made therefrom - Provided are thermoplastic elastomer compositions composed of a thermoplastic component, an elastomeric component, and at least one particulate composition. Particulate compositions are composed of a particulate material and a carrier medium. Exemplary particulate materials include minerals, mineral compounds, including mineral oxides, clays, carbon, nanotubes, and combinations thereof. Typical carrier mediums are one or more polar polymers, apolar polymers, one or more oils, poly α-olefins, or combinations thereof. The at least one particulate composition is dispersed within the thermoplastic component and/or the elastomeric component. Particulate compositions include clay grease compositions wherein a clay, e.g., an exfoliated clay, is utilized as a thickener. | 11-20-2008 |
20090156764 | Ethylene-Based Polymers and Articles Made Therefrom - Provided are ethylene-based polymer compositions, articles made therefrom, and methods of making the same. Ethylene-based polymer compositions include linear low density polyethylene prepared with metallocene catalyst, which may optionally have about 5 mole percent or less of monomer units derived from an alpha-olefin comonomer. Ethylene-based polymer compositions include blends of linear low density polyethylene and one or more very low density polyethylene compositions, one or more low density polyethylene compositions, one or more medium density polyethylene compositions, one or more high density polyethylene compositions, one or more differentiated polyethylene compositions, or other conventional polymers. Articles composed of such ethylene-based polymer compositions are prepared according to a process window, e.g., at a specific extrusion rates, which provides favorable physical properties, including tear resistance and dart drop properties. Films prepared according to these techniques exhibit physical properties equivalent to, or superior than, conventional linear low density polyethylenes prepared with Ziegler-Natta catalyst. | 06-18-2009 |
20090192270 | Ethylene-Based Polymers And Articles Made Therefrom - Provided are ethylene-based polymer compositions, articles made therefrom, and methods of making the same. Ethylene-based polymer compositions include blends of a linear low density polyethylene prepared with metallocene catalyst and a low density polyethylene. The linear low density polyethylene may optionally have about five mole percent or less of monomer units derived from an alpha-olefin comonomer. Articles composed of such ethylene-based polymer compositions, such as blown films, exhibit favorable physical properties, including excellent optical properties and retained strength i.e., mitigation of expected decline in physical strength due to LDPE addition. | 07-30-2009 |
20090297810 | Polyethylene Films and Process for Production Thereof - This invention relates to a polyethylene film having a MD 1% Secant Modulus of 220 MPa or more and an MD Elmendorf Tear of Y g/micron, where Y≧−0.4515(Dart Drop in g/micron)+33.3 g/microns, wherein the MD Elmendorf tear is at least 11.8 g/micron. | 12-03-2009 |
20110165395 | High MIR Linear Polyethylenes and Coextruded Films Therefrom - A high clarity, high throughput film comprising at least two skin layers and at least one core layer there between, wherein the skin layers comprise at least one linear ethylene-α-olefin copolymer having an I | 07-07-2011 |
20130085241 | Methods of Improving Crosslinkability of Polyethylene Polymer Comprising Polar Comonomer and Polymer Compositions - Processes for producing high pressure polyethylene and processes for increasing the crosslinkability of high pressure polyethylene are disclosed. The processes comprise controlling particular reaction parameters that have been found to promote crosslinkability in the resulting high pressure polyethylene. High pressure polyethylenes having improved crosslinkability are also disclosed. | 04-04-2013 |
20150038624 | Oxygen Tailoring of Polyethylene - Processes are disclosed for oxygen-tailoring polyethylene, particularly polyethylenes suitable for wire and cable applications. One process includes conveying a first polyethylene having a melt index ≦5.0 and an MWD ≦5.0 through mixing or extrusion apparatus having a feed zone, a melt-mixing zone downstream of the feed zone, and a melt zone downstream of the melt-mixing zone, wherein the temperature of the first polyethylene in the melt zone ranges from about 180° C. to about 300° C.; and contacting the first polyethylene with an amount of an oxygen-containing gas having at least about 20.0 parts by weight oxygen per million per parts by weight of the first polyethylene (ppm (wt) O | 02-05-2015 |
20150114452 | Photovoltaic Modules and Methods for Making Same - This invention relates to photovoltaic modules wherein a polyethylene composition is used as an alternative, in whole or in part, to traditional ethylene vinyl acetate (EVA) resins in at least one layer. The polyethylene compositions are especially useful in the encapsulant and/or backsheet layers of photovoltaic modules. The polyethylene compositions comprise units derived from at least one C | 04-30-2015 |