Patent application number | Description | Published |
20110165470 | BICOMPONENT FIBER - The present invention relates to a new bicomponent fiber, a nonwoven fabric comprising said new bicomponent fiber and sanitary articles made therefrom. The bicomponent fiber contains a polyethylene-based resin forming at least part of the surface of the fiber longitudinally continuously and is characterized by a Co-monomer Distribution Constant greater than about 45, a recrystallization temperature between 85° C. and 110° C., a tan delta value at 0.1 rad/sec from about 15 to 50, and a complex viscosity at 0.1 rad/second of 1400 Pa.sec or less. The nonwoven fabric comprising the new bicomponent fiber according to the instant invention are not only excellent in softness, but also high in strength, and can be produced in commercial volumes at lower costs due to higher thoughputs and requiring less energy. | 07-07-2011 |
20130134088 | BICOMPONENT FIBER - The present invention relates to a new bicomponent fiber, a nonwoven fabric comprising said new bicomponent fiber and sanitary articles made therefrom. The bicomponent fiber contains a polyethylene-based resin forming at least part of the surface of the fiber longitudinally continuously and is characterized by a Co-monomer Distribution Constant greater than about 45, a recrystallization temperature between 85° C. and 110° C., a tan delta value at 0.1 rad/sec from about 15 to 50, and a complex viscosity at 0.1 rad/second of 1400 Pa.sec or less. The nonwoven fabric comprising the new bicomponent fiber according to the instant invention are not only excellent in softness, but also high in strength, and can be produced in commercial volumes at lower costs due to higher thoughputs and requiring less energy. | 05-30-2013 |
Patent application number | Description | Published |
20110003524 | FIBERS AND FABRICS MADE FROM ETHYLENE/alpha-OLEFIN INTERPOLYMERS - A bicomponent fiber is obtainable from or comprises an ethylene/α-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and 1 cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re>1481−1629(d). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven or non-woven fabrics, such as spunbond, melt blown and spun-laced fabrics or webs can be made from such fibers. | 01-06-2011 |
20110092937 | POLYETHYLENE COMPOSITIONS, METHOD OF PRODUCING THE SAME, FIBERS MADE THEREFROM, AND METHOD OF MAKING THE SAME - The instant invention is a polyethylene composition, method of producing the same, fibers made therefrom, and method of making the same. The polyethylene composition according to instant invention comprises: (a) less than or equal to 100 percent by weight of the units derived from ethylene; and (b) less than 20 percent by weight of units derived from one or more α-olefin comonomers. The polyethylene composition according to instant invention has a density in the range of 0.920 to 0.970 g/cm | 04-21-2011 |
20110172354 | ETHYLENE-BASED POLYMER COMPOSITIONS FOR USE IN FIBER APPLICATIONS - The present invention relates to particular ethylene-based polymer compositions suitable for use in binder fiber applications. The materials are characterized in having a peak recrystallization temperature in the range of from 85° C. to 110 C, and a Comonomer Distribution Constant (“CDC”) of 55 or greater. The materials are also characterized by having a tan delta value at 0.1 rad/sec from about 15 to 50, and a complex viscosity at 0.1 rad/second of 1400 Pa·sec or less. | 07-14-2011 |
20120045956 | FABRICATED ARTICLES COMPRISING POLYOLEFINS - Fabricated articles are disclosed which comprise a polypropylene impact copolymer. The propylene impact copolymer composition comprises from 60 to 90 percent by weight of the impact copolymer composition of a matrix phase, which can be a homopolymer polypropylene or random polypropylene copolymer having from 0.1 to 7 mol percent of units derived from ethylene or C | 02-23-2012 |
20120046400 | POLYPROPYLENE RESIN SUITABLE FOR SOFT NONWOVEN APPLICATIONS - A polypropylene impact copolymer is disclosed. The propylene impact copolymer composition comprises from 60 to 90 percent by weight of the impact copolymer composition of a matrix phase, which can be a homopolymer polypropylene or random polypropylene copolymer having from 0.1 to 7 mol percent of units derived from ethylene or C | 02-23-2012 |
20130023177 | BICOMPONENT FIBERS - The present invention provides bicomponent fibers, a method of producing bicomponent fibers, nonwoven materials comprising one or more such bicomponent fibers, and a method for making such nonwoven materials. The bicomponent fibers according to the present invention comprise (a) a first component comprising a polymeric material selected from the group consisting of polypropylene, polyester, and polyamide; and (b) a second component comprising a polyethylene composition comprising less than or equal to 100 percent by weight of the units derived from ethylene; and less than 20 percent by weight of units derived from one or more α-olefin comonomers; wherein the polyethylene composition has a density in the range of from 0.945 to 0. 965 g/cm | 01-24-2013 |
20130209707 | POLYETHYLENE-BASED ORIENTED MONOFILAMENTS AND STRIPS AND METHOD FOR THE PREPARATION THEREOF - The present disclosure provides for a tape or monofilament of a polyethylene composition comprising less than or equal to 100 percent by weight of the polyethylene composition derived from ethylene monomers, and less than 20 percent by weight of the polyethylene composition derived from one or more α-olefin monomers, where the polyethylene composition of the tape or monofilament has a density in the range of 0.920 to 0.970 g/cm | 08-15-2013 |
20140121619 | EFFECTIVE ODOR CONTROL WITH COATINGS OF DESIGNED POROUS MOLECULES - The present invention relates to coatings for articles comprising a non-zeolitic silica mesoporous structure. The coatings of the present invention have shown an ability to effectively reduce odors. | 05-01-2014 |
20140187114 | ELASTIC NONWOVENS WITH IMPROVED HAPTICS AND MECHANICAL PROPERTIES - The present invention is an extensible nonwoven comprising a polyolefin elastomer fiber wherein the surface of the fiber further comprises an inorganic filler or PDMS or combinations thereof, wherein the inorganic filler, if present, has D-90 particle size of 5 microns or less. | 07-03-2014 |
20140248811 | SPUNBOND NONWOVEN FABRICS - The instant invention provides nonwoven fabrics and staple or binder fibres prepared from an ethylene-based polymer having a Comonomer Distribution Constant in the range of from greater than from 100 to 400, a vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the ethylene-based polymer composition; a zero shear viscosity ratio (ZSVR) in the range from 1 to less than 2; a density in the range of 0.930 to 0. 970 g/cm3, a melt index (12) in the range of from 15 to 30 or from 10 to 50 g/10 minutes, a molecular weight distribution (Mw/Mn) in the range of from 2 to 3.5, and a molecular weight distribution (Mz/Mw) in the range of from less than 2. | 09-04-2014 |
20140248816 | BI-COMPONENT FIBER AND FABRICS MADE THEREFROM - The instant invention provides bi-component fibers and fabrics made therefrom. The bi-component fiber according to the present invention comprises: (a) from 5 to 95 percent by weight of a first component comprising at least one or more first polymers, based on the total weight of the bi-component fiber; (b) from 5 to 95 percent by weight of a second component comprising at least an ethylene-based polymer composition, based on the total weight of the bicomponent fiber, wherein said ethylene-based polymer composition comprises; (i) less than or equal to 100 percent by weight of the units derived from ethylene; and (ii) less than 30 percent by weight of units derived from one or more α-olefin comonomers; wherein said ethylene-based polymer composition is characterized by having a Comonomer Distribution Constant in the range of from greater than from 100 to 400, a vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the ethylene-based polymer composition; a zero shear viscosity ratio (ZSVR) in the range from 1 to less than 2; a density in the range of 0.920 to 0.970 g/cm | 09-04-2014 |