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Claasen
Gert Claasen, Richterswil CH
| Patent application number | Description | Published |
|---|---|---|
| 20100037576 | PROCESS FOR PRODUCING MICRON AND SUBMICRON FIBERS AND NONWOVEN WEBS BY MELT BLOWING - This invention is a method for fabricating fibers by melt-blowing a melt of a molecularly self-assembling material, the melt being at a temperature of from 130° C. to 220° C., thereby forming a fiber set having a distribution of fiber diameters wherein at least 95% of the fibers have a diameter of less than about 3 microns. The invention further comprises collecting the fiber set so as to form a fibrous non-woven web. | 02-18-2010 |
Gert Claasen, Richterswill CH
| 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 |
Gert J. Claasen, Richterswil CH
| 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 |
Gert J. Claasen, Adilswil ZA
| Patent application number | Description | Published |
|---|---|---|
| 20100143652 | COMPOSITE - A composite structure including a substrate and a fluid in contact with the substrate, wherein the substrate comprises a non-woven, a foam, or combinations thereof and is characterized by having a basis weight of 15 to 500 grams per square meter. | 06-10-2010 |
Gert J. Claasen, Adliswil CH
| Patent application number | Description | Published |
|---|---|---|
| 20080199673 | Propylene Based Meltblown Nonwoven Layers and Composite Structures - The present invention relates to propylene-based nonwoven layers made by the meltblown process, and laminates incorporating such layers. The meltblown layers of the present invention comprise propylene copolymers characterized by having less than 50 percent crystallinity. The meltblown layers of the present invention show an improved combination of extensibility and tensile strength. The laminate structures of the present invention are characterized by a combination of low bending modulus with high peel strength. | 08-21-2008 |
| 20090111347 | SOFT AND EXTENSIBLE POLYPROPYLENE BASED SPUNBOND NONWOVENS - The present invention relates to nonwoven webs or fabrics. In particular, the present invention relates to nonwoven webs having superior abrasion resistance and excellent softness characteristics. The nonwoven materials comprise fibers made from of a polymer blend of isotactic polypropylene and reactor grade propylene based elastomers or plastomers together with from about 100 to about 2500 ppm (by weight of the fiber) of a slip agent. The isotactic polypropylene can be homopolymer polypropylene, and/or random copolymers of propylene and one or more alpha-olefins. The reactor grade propylene based elastomers or plastomers have a molecular weight distribution of less than about 3.5, and a heat of fusion less than about 90 joules/gm. In particular, the reactor grade propylene based elastomers or plastomers contains from about 3 to about 15 percent by weight of units derived from an ethylene and a melt flow rate of from about 2 to about 200 grams/10 minutes. Erucamide is the preferred slip additive. | 04-30-2009 |
Gert Johannes Claasen, Richterswil CH
| Patent application number | Description | Published |
|---|---|---|
| 20100227520 | POLYOLEFIN DISPERSION TECHNOLOGY USED FOR POROUS SUBSTRATES - A method of forming an article that includes applying an aqueous dispersion to a porous substrate, wherein the aqueous dispersion includes a thermoplastic polymer, a dispersing agent, and water. The method includes removing at least a portion of the water, to result in an article formed that is breathable. | 09-09-2010 |
Karl Hermann Claasen, Moers DE
| Patent application number | Description | Published |
|---|---|---|
| 20100269562 | MANIPULATOR FOR FORGING MACHINE - A forging press has a workpiece manipulator having a shaft centered on and rotatable about an axis, a grab for holding the workpiece in the press and rotationally fixed to the shaft carrying the grab and centered on and rotatable about an axis, and a disk fixed angularly to the shaft and projecting radially outward therefrom. Two couplings are juxtaposed with the disk, rotatable relative to the shaft about, and have respective clutches for locking onto the disk so that when locked onto the disk the couplings are rotationally fixed to the disk. Respective actuators connected to the actuators can angularly shift the disk and thereby rotate the shaft, the grab, and the workpiece held by the grab. | 10-28-2010 |
Uta Claasen, Hohenhameln DE
| Patent application number | Description | Published |
|---|---|---|
| 20120101305 | Process For The Manufacture Of Halogenated Precursors Of Alkenones Under Specific Conditions - A process for preparing a halogenated precursor of an alkenone, which comprises reacting a carboxylic acid halide with a vinyl ether in a liquid reaction medium under turbulent conditions and a process for preparing an alkenone, by eliminating hydrogen halide from said precursor to form the alkenone. | 04-26-2012 |