| Patent application number | Description | Published |
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| 20090209158 | Pelletized Polymer Product And Process For Making The Same - Provided is a propylene polymer composition comprising a neat polymer and a hydroxylamine ester compound suitable for preparing low melt viscosity polymers useful in spinning, melt blowing, extruding and the like. The polymer composition exhibits near-neat propylene polymer melt viscosity such that it can be readily pelletized for transport or use by an end user other than the composition manufacturer. Also provided is a process for preparing the polymer composition, pelletizing it, melt mixing the composition pellets at a temperature and for a time sufficient to allow viscosity breaking of the composition, and melt blowing or spunbonding the resulting low melt viscosity polymer to produce high quality non-woven fabrics. Finally, a non-woven fabric with superior barrier properties made from the polymer composition is provided. | 08-20-2009 |
| 20100233928 | Polypropylene Spunbond Fibers and Methods for Making Same - Disclosed herein is a spunbond fiber of visbroken polypropylene having an M | 09-16-2010 |
| 20110081529 | Multi-Layered Meltblown Composite and Methods for Making Same - Multilayer meltblown composites, articles made therefrom, and methods for making same. One method can include meltblowing a first material to form a first meltblown layer; meltblowing a second material to form a second meltblown layer; and meltblowing a third material to form a third meltblown layer, wherein each material is the same or different, each material includes at least one resin having a MFR of about 2,000 dg/min or less, as measured by ASTM D1238, 2.16 kg, 230° C., and at least one of the first, second, and third materials comprises an elastomer having a recovery of at least 70% after 100% deformation, as determined by ASTM D412. | 04-07-2011 |
| 20120123374 | Meltblown Nonwoven Compositions and Methods for Making Them - Meltblown nonwoven compositions and processes for forming them are described herein. In one or more embodiments, the invention is directed to meltblown nonwoven fabrics having at least one elastic layer, wherein the elastic layer comprises a propylene-based polymer having an MFR greater than about 25 g/10 min. Additionally, the propylene-based polymer comprises from about 5 to about 25 wt % of one or more C | 05-17-2012 |
| 20120329351 | Elastic Nonwoven Materials Comprising Propylene-Based and Ethylene-Based Polymers - The present invention relates to elastic nonwoven materials comprising an elastic layer formed from a polymer blend comprising a propylene-based polymer and a minor amount of an ethylene-based polymer. The propylene-based polymer may comprise from about 75 to about 95 wt % propylene and from about 5 to about 25 wt % ethylene and/or a C | 12-27-2012 |
| 20130137331 | Nonwoven Fabrics Made From Polymer Blends And Methods For Making Same - The present invention is directed to polymer blends for use in nonwoven fabric applications, and to fabrics formed from the polymer blends. In one or more embodiments, the polymer blends comprise from about 70 to about 99.9 wt %, based on the total weight of the composition, of a first propylene-based polymer and from about 0.1 to about 30 wt % of a second propylene-based polymer. The first polymer has a melt flow rate of from about 100 to about 5,000 g/10 min, and the second polymer has a melt flow rate of from about 1 to about 500 g/min, and the second polymer has either a lower melt flow rate or a higher triad tacticity than the first polymer. | 05-30-2013 |
| 20130143461 | Polymer Compositions and Nonwoven Compositions Prepared Therefrom - Propylene-based polymer compositions are provided comprising propylene and from about 5 wt % to about 20 wt % of one or more C | 06-06-2013 |
| 20140194845 | Polymer Compositions and Nonwoven Compositions Prepared Therefrom - Propylene-based polymer compositions are provided comprising propylene and from about 5 wt % to about 20 wt % of one or more C | 07-10-2014 |
| 20140323003 | Bicomponent Fibers and Methods for Making Them - The present invention relates to bicomponent polymer fibers, and to processes for forming those fibers. Bicomponent polymer fibers are described, having a core comprising a core polymer and a sheath comprising a sheath polymer, wherein the sheath polymer is a polyolefin having an Mw less than about 65,000 g/mol. The core polymer has an Mw at least about 20,000 g/mol greater than the Mw of the sheath polymer. Processes for forming bicomponent fibers are also described, comprising (i) forming a molten blend of a core polymer and a sheath polymer; (ii) extruding the molten polymer blend using an extrusion die having a length to diameter ratio greater than or equal to about 10 and under shear conditions sufficient to drive the sheath polymer to the die wall; and (iii) forming meltblown fibers having a core comprising the core polymer and a sheath comprising the sheath polymer. | 10-30-2014 |
| 20140327164 | Method of Producing Polypropylene Spunbond Fibers - Disclosed is a process for producing spunbond fibers comprising melt blending a polypropylene having a melt flow rate (230/2.16) of from 10 to 30 dg/min with a peroxide visbreaker such that the resulting melt flow rate of the visbroken polypropylene is from 50 to 100 dg/min; melt extruding the visbroken polypropylene through a die block such that filaments of the visbroken polypropylene being produced are exposed to a cabin pressure of from 4500 to 7000 Pa; and forming fibers of from less than 6.0 denier. Nonwoven fabrics and multiple-layer structures can be made from the fibers described herein that are useful for filtering and absorption related articles. | 11-06-2014 |
| 20160032090 | Polymer Compositions and Nonwoven Compositions Prepared Therefrom - Described herein are propylene-based polymer compositions that comprise a reactor blend of a first polymer component and a second polymer component. The first polymer component has an ethylene content of from greater than 12 to less than 19 wt % ethylene, and the second polymer component has an ethylene content of from greater than 4 to less than 10 wt % ethylene. Preferably, the ethylene content of the first and second polymer components satisfy the formula: | 02-04-2016 |
| 20160076171 | Fibers and Nonwoven Materials Prepared Therefrom - Described herein are fibers, nonwoven fabrics, and other nonwoven articles comprising a blend of at least one propylene-based elastomer and an impact copolymer. The impact copolymer is a reactor blend and comprises a propylene homopolymer component and a copolymer component, where the copolymer component comprises less than about 55 wt % ethylene-derived units, based on the weight of the copolymer component. | 03-17-2016 |
| 20160082690 | Fibers and Nonwoven Materials Prepared Therefrom - Described herein are fibers, nonwoven fabrics, and other nonwoven articles comprising a blend of at least one propylene-based elastomer and a broad molecular weight polypropylene or a broad molecular weight impact copolymer. The broad molecular weight polypropylene has a molecular weight distribution (MWD) of greater than 4.5. The impact copolymer is a reactor blend and comprises a propylene homopolymer component and a copolymer component, where the propylene homopolymer component has a molecular weight distribution (MWD) of greater than 4.5. | 03-24-2016 |
| Patent application number | Description | Published |
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| 20100266818 | Multilayer Composites And Apparatuses And Methods For Their Making - Provided are multi-beam meltblowing apparatuses having a ridged collecting surface, methods for making multilayer meltblown composites using such apparatuses, and multilayer meltblown composites made therefrom. Also provided are a multilayer composite comprising an elastic layer and at least one ridged layer and a method for making the multilayer composite. | 10-21-2010 |
| 20100266824 | Elastic Meltblown Laminate Constructions and Methods for Making Same - Multilayer meltblown composites, articles made therefrom, and methods for making same. The meltblown composite can include a first meltblown layer comprising one or more resins having an Ultimate Elongation (UE) of from about 50% to about 250%, as measured according to ASTM D412; and a second meltblown layer comprising a propylene-α-olefin copolymer having an ethylene content of about 5 wt % to about 20 wt %; a MFR (ASTM-1238D, 2.16 kg, 230° C.) of about 10 g/10 min to about 30 g/10 min; and a heat of fusion of 75 J/g or less. | 10-21-2010 |
| 20100267914 | Method for Producing Temperature Resistant NonWovens - Temperature resistant multilayer composites, methods for making same, and articles made therefrom. The method can include extruding one or more polyolefin polymers having a MFR from less than 90 dg/min through at least one die having a plurality of nozzles to form a plurality of continuous fibers, at least one die operating at a melt pressure from greater than 500 psi (3447 kPa) to form at least one elastic meltblown layer; adhering the at least one elastic meltblown layer to at least one extensible layer to form a multilayer composite; and at least partially crosslinking the elastic meltblown layer or the extensible layer or both. | 10-21-2010 |
| Patent application number | Description | Published |
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| 20080259844 | OVER THE AIR MICROCONTROLLER FLASH MEMORY UPDATES - Techniques for over the air (OTA) microcontroller flash memory updates using a wireless network are disclosed herein. A control node first transmits the microcontroller flash memory update to all devices that can receive the message. Each packet of the message is relayed through multiple communication levels until all devices receive the packet. This starts with communications from the control node to each device node that has a direct communication path to the control node, which are referred to herein as “first level” device nodes. The first level device nodes then relay each communication to each other device node that has a direct communication path to the first level device nodes, which are referred to herein as “second level” device nodes. This process is repeated at each level of the wireless network until each of the plurality of device nodes has received the microcontroller flash memory update. | 10-23-2008 |
| 20080266813 | Blade Server Assembly - A blade server assembly is disclosed that includes a blade server chassis, a blade server, and a support assembly connected with the blade server chassis and with the blade server so as to support the blade server substantially outside the blade server chassis. A method is also disclosed for maintaining a blade server installed in a blade server chassis that includes supporting the blade server substantially outside the blade server chassis through a support assembly connected with the blade server chassis and with the blade server. | 10-30-2008 |
| 20090309756 | Techniques For Limiting Demand From An electricity Meter With An Installed Relay - An electricity meter capable of performing a method for limiting an electricity load in communication with the electricity meter is disclosed. The electricity meter includes at least one load control and the electricity meter has one or more predetermined time-of-use tiers. Each of the one or more predetermined time-of-use tiers has a corresponding time-of-use demand threshold. The method comprises determining a present time-of-use tier; determining a present time-of-use demand for the electricity load in the present time-of-use tier; comparing the present time-of-use demand to the time-of-use demand threshold corresponding to the present time-of-use tier; and setting the at least one load control to a de-energize mode when a de-energize condition is satisfied. The de-energize condition may include sub-conditions such as the present time-of-use demand exceeding the time-of-use demand threshold corresponding to the present time-of-use tier. | 12-17-2009 |
| 20100195574 | Other Protocol Message Routing Over a Wireless Network of Metering Devices - Methods and apparatus are provided for routing DNP (or other) protocol messages over a network of an advanced metering infrastructure (AMI) system that employs a different communications protocol. | 08-05-2010 |
| 20120188093 | TEST MODE SUPPORT FOR METERING ACCURACY TESTS - A metering device may be configured to communicate with other devices on a plurality of metering communication networks. To enable such communications across various networks, the metering communication device may use an active utility identifier corresponding to the metering network in which it is actively communicating. The active utility identifier may be changed to a valid utility identifier corresponding to another metering network and which may be associated with the metering communication device itself. The metering communication device may use the changed active utility identifier to communicate with other devices on the other metering network having the valid utility identifier. For example, the metering communication device may change the active utility identifier to enable communication a test network from a production network, a production network to a test network, or a first test network to a second test network. | 07-26-2012 |
| 20120201146 | MESH INFRASTRUCTURE UTILIZING PRIORITY REPEATERS AND MULTIPLE TRANSCEIVERS - A wireless mesh network, method, and processor-readable storage medium for using stand-alone repeaters that are designated as having priority over other communication nodes with respect to their service as repeaters are disclosed herein. According to various embodiments, a control node or collector builds a wireless mesh network by first establishing communication paths with the designated priority communication nodes and then with communication nodes that are not designated priority communication nodes. | 08-09-2012 |
| 20120246268 | Internet Protocol Message Routing Over A Wireless Network Of Metering Devices - Methods and apparatus are provided for routing Internet Protocol (IP) messages over a network of an advanced metering infrastructure (AMI) system that employs a different communications protocol. | 09-27-2012 |
| 20130010692 | Other Protocol Message Routing Over a Wireless Network of Metering Devices - Methods and apparatus are provided for routing DNP (or other) protocol messages over a network of an advanced metering infrastructure (AMI) system that employs a different communications protocol. | 01-10-2013 |
| 20130021956 | SYNCHRONIZED COMUNICATION FOR MESH CONNECTED TRANSCEIVER - A wireless mesh network, method, and processor-readable storage medium for operating a network that has a control node that communicates with a plurality of communication nodes, at least one of which comprises a battery-powered communication node, are disclosed. The battery-powered communication node is associated with an electric meter and is configured to maintain time- and frequency synchronization with an electric meter or with the network, to transmit a message, and to listen for a response to the message during a polling period after the message is transmitted. | 01-24-2013 |
