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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7328463 | Water-soluble articles and methods of making and using the same Water-soluble articles and methods of making, using and disposing of the water-soluble articles are disclosed. ... | 02/12/2008 |
| 7316723 | Air filter with fine fiber and spun bonded media Disclosed are improved polymer materials. Also disclosed are fine fiber materials that can be made from the improved polymeric materials in the form of microfiber and nanofiber structures. The microfiber and nanofiber structures can be used in a variety of useful ap... | 01/08/2008 |
| 7288493 | Body armor with improved knife-stab resistance formed from flexible composites Flexible body armor formed from flexible composites which have improved knife-stab resistance. The body armor is formed from composites which include layers of a fabric base, formed from high tenacity fibers, and a rubber layer bonded to the fabric base. A thermopla... | 10/30/2007 |
| 7267788 | Cavity-creating tool for foaming operation A tool creates a fastener-receiving cavity within a foam-filled structure that includes a panel with a slot for receiving the fastener and foam backing that is cast in place against on the underside of the panel. The tool includes a clip and a plunger. The clip is i... | 09/11/2007 |
| 7026049 | Conductive polyvinyl alcohol fiber A conductive polyvinyl alcohol fiber having good mechanical properties and heat resistance contains a polyvinyl alcohol polymer and copper sulfide nano-particles having a mean particle size of at most 50 nm which are finely dispersed in the polymer. The content of t... | 04/11/2006 |
| 6924030 | Polyvinyl alcohol binder fibers, and paper or nonwoven fabric comprising them PVA binder fibers having the following characteristics: a cross-section circularity of at most 30%, a degree of swelling in water at 30° C. of at least 100%, and a degree of dissolution in water of at most 20%, are capable of being processed even under low-energy d... | 08/02/2005 |
| 6881361 | Method for producing shaped bodies The invention relates to a method for producing shaped bodies, especially threads or foils, from at least one polymer of the groups consisting of polysaccharide, polysaccharide derivative or polyvinyl alcohol by forming a solution of the polymer that contains an add... | 04/19/2005 |
| 6793820 | Ethylene-vinyl alcohol hollow fiber membranes EVAL microporous hydrophilic hollow fiber membranes are formed from a casting dope that includes low and high molecular weight pore-formers. Post-fabrication treatment includes stretching, hot water soaking and crosslinking. ... | 09/21/2004 |
| 6783852 | High-absorbent polyvinyl alcohol fibers and nonwoven fabric comprising them Cross-linked polyvinyl alcohol fibers prepared from a water-soluble polyvinyl alcohol, which satisfy the following requirements: (1) a water absorption in water at 30° C. ranging from 10 to 100 times the weight of the fibers; (2) a fiber diameter in w... | 08/31/2004 |
| 6610233 | Saponified ethylene-vinyl acetate copolymer pellets and method for their production The invention provides pellets of a saponified ethylene-vinyl acetate copolymer which are excellent in feedability, cause little fluctuation of extruder torque or discharge during molding, and yield shaped articles with high dimensional accuracy such as t... | 08/26/2003 |
| 6552123 | Thermoplastic polyvinyl alcohol fibers and method for producing them Provided are melt-spun fibers comprising, as at least one component, a water-soluble polyvinyl alcohol, and a method for producing fibrous structures comprising the fibers. The thermoplastic polyvinyl alcohol fibers comprise, as at least one component, a ... | 04/22/2003 |
| 6355347 | Methods of making blend compositions of an unmodified polyvinyl alcohol and metallocene polyolefin or a grafted metallocene polyolefin This invention relates, in general, to methods of making blend compositions of an unmodified polyvinyl alcohol and a metallocene polyolefin or grafted metallocene polyolefin and thermoplastic film and fiber structures comprising these blend compositions. ... | 03/12/2002 |
| 6350518 | Methods of making blend compositions of an unmodified poly vinyl alcohol and a thermoplastic elastomer This invention relates, in general, to methods of making blend compositions of an unmodified poly vinyl alcohol and a thermoplastic elastomer and thermoplastic film and fiber structures comprising these blend compositions. More specifically, this inventio... | 02/26/2002 |
| 6319601 | Polyvinyl alcohol based fibers Polyvinyl alcohol based fibers having good fatigue resistance, dipped cords comprising the polyvinyl alcohol based fibers and having good fatigue resistance, and a method for producing the dipped cords. The polyvinyl alcohol based fibers have a tanδ at 9... | 11/20/2001 |
| 6197238 | Methods for making unmodified polyvinyl alcohol fibers This invention relates, in general, to thermoplastic film and fiber structures and methods of making the same. More specifically, this invention relates to substantially water-free films and fibers comprising unmodified polyvinyl alcohol.... | 03/06/2001 |
| 6103823 | Three stages process for the preparation of solid thermoplastic compositions based on polyvinyl alcohol and moldable and extrudable compositions obtained accordingly A three stages process for the preparation of solid thermoplastic compositions based on polyvinyl alcohol comprising the mixing in a mixer of a first charge, comprising the polyvinyl alcohol and solid plasticizers, with a second charge constituted by one ... | 08/15/2000 |
| 6066396 | Flame-retardant polyvinyl alcohol base fiber A vinyl-alcohol-based polymer and vinyl-halide-based polymer are dissolved in a common organic solvent for them, a typical example of which is dimethylsulfoxide, to obtain a dope wherein a solution of the vinyl-halide-based polymer having a particle size ... | 05/23/2000 |
| 5985394 | High-water-containing elastomer medical catheter The present invention provides a process for preparing; a high water-containing elastomer medical catheter and a urinary catheter prepared by the process. The process comprises a) heating a mixture consisting of polyvinyl alcohol, water, sulfoxide and lin... | 11/16/1999 |
| 5885907 | Method of disposal of hot water soluble garments and like fabrics A towel, sponge and gauze made from a plurality of fibers of polyvinyl alcohol that are only water soluble at temperatures above 37° C. The polyvinyl alcohol fibers have a degree of hydrolysis of at least 80% with a degree of polymerization between appro... | 03/23/1999 |
| 5871679 | Method of producing hot water soluble garments and like fabrics A method of disposing of garments after use. The garments, linens, drapes, towels and other useful articles are provided as woven, non-woven, knitted or otherwise formed fabric of thermoplastic polyvinyl alcohol polymer fiber, the fiber being water solubl... | 02/16/1999 |
| 5861213 | Fibrillatable fiber of a sea-islands structure By dissolving a vinyl alcohol polymer (A) and an incompatible vinyl polymer (B), preferably an acrylonitrile polymer in a common solvent to prepare a spinning stock solution of a phase separation structure wherein the polymer (B) is present at particle si... | 01/19/1999 |
| 5840828 | Polyimide fibers A polyimide fiber having textile physical property characteristics and the process of melt extruding same from a polyimide powder. Polyimide powder formed as the reaction product of the monomers 3,4'-ODA and ODPA, and endcapped with phthalic anhydride to ... | 11/24/1998 |
| 5762860 | Method of and apparatus for producing water soluble polymeric tube A method of and an apparatus for cooling or quenching a tube extruded from a water soluble polymer includes a plurality of cooling rings with bores through which the extruded tube passes. A gaseous cooling medium, such as compressed air, is supplied to ea... | 06/09/1998 |
| 5677360 | Hydrophilic polymer alloy, fiber and porous membrane comprising this polymer alloy, and methods for preparing them A hydrophilic polymer alloy which has a permanent hydrophilic nature, a sufficient mechanical strength and a high safety and which is suitable for the formation of hydrophilic porous membranes manufacturable by an industrially advantageous process can be ... | 10/14/1997 |
| 5620786 | Hot water soluble towels, sponges and gauzes Towel, sponge and gauze products composed of fibers of polyvinyl alcohol resin. The fibers are selectively soluble in aqueous solutions only above approximately 93° C. Polyvinyl alcohol fibers have a degree of hydrolysis of at least 99%, are composed of ... | 04/15/1997 |
| 5603888 | Method of making fibers A process of manufacturing elastomeric fibers in which fibers are obtained by co-extruding an extrudable and curable .tbd.SiO-- containing material and an aqueous organic polymer solution into a coagulation bath. The .tbd.SiO-- containing material is surr... | 02/18/1997 |
| 5422050 | Reinforced polyvinyl alcohol hydrogels containing uniformly dispersed crystalline fibrils and method for preparing same This invention provides reinforced composite structures consisting essentially of a matrix and a dispersed phase, where the matrix is a hydrogel containing water and a solubilized vinyl alcohol homopolymer, the dispersed phase contains a plurality of unif... | 06/06/1995 |
| 5419109 | Tire cord of polyvinyl multifilament yarn A tire cord made of a multifilament yarn of polyvinyl alcohol having a degree of polymerization of at least 1500, the yarn having a tensile strength of at least 10 g/d and an index of hot water resistance of at least 50.... | 05/30/1995 |
| 5362778 | Extrudable polyvinyl alcohol compositions containing modified starches An extrudable polyvinyl alcohol composition useful for packaging and molding applications is prepared by melt blending polyvinyl alcohol and thermoplastic modified starch to provide a product which has reduced water sensitivity, improved modulus and reduc... | 11/08/1994 |
| 5358677 | Methods of forming bioabsorbable objects from polyvinyl alcohol Method for forming polyvinyl alcohol (PVA) into surgical elements include forming a mixture of PVA and water into a film by vacuum pressing with a first force, heating, applying a second force two to two hundred times the firs force, drying the film to re... | 10/25/1994 |
| 5340522 | Process for producing polyvinyl alcohol multifilament yarn A multifilament yarn of polyvinyl alcohol having a degree of polymerization of at least 1500, the yarn having a tensile strength of at least 10 g/d and an index of hot water resistance of at least 50.... | 08/23/1994 |
| 5326507 | Manufacture of polarizing films The process for manufacturing a polarizing film based on polyvinyl alcohol and at least one dichroic substance by casting or extrusion of a mixture of polyvinyl alcohol and a solvent, whereby the polyvinyl alcohol contains the dichroic substance, drying a... | 07/05/1994 |
| 5283281 | Polyvinyl alcohol multifilament yarn and process for producing the same A multifilament yarn of polyvinyl alcohol having a degree of polymerization of at least 1500, the yarn having a tensile strength of at least 10 g/d and an index of hot water resistance of at least 50.... | 02/01/1994 |
| 5264173 | Polyvinyl alcohol monofilament yarns and process for producing the same A process for producing a high strength and high initial modulus polyvinyl alcohol monofilament yarn. The monofilament yarn is polyvinyl alcohol having a polymerization degree of from 1500 to 7000, a tensile strength of not less than 10 g/d and an initial... | 11/23/1993 |
| 5248471 | Process for forming fibers This invention relates to a process in which a fiber is formed by spinning a melt or solution of a polymer through a capillary spinneret having a length/diameter (L/D) ratio equal to or greater than about 25:1, and fibers formed by such method... | 09/28/1993 |
| 5229057 | Process of making high-strength polyvinyl alcohol fiber High-strength polyvinyl alcohol fiber is provided by extruding a polyvinyl alcohol dope solution through a spinneret into a coagulating bath, the spinneret being located such that substantially only its dope-extruding surface contacts the coagulating bath... | 07/20/1993 |
| 5225120 | Method for preparing tubing and hollow fibers from non-crosslinked polyvinyl alcohol hydrogels This invention relates to hollow elongate articles such as tubing and fibers formed from non-crosslinked polyvinyl alcohol. The articles are prepared by extruding a solution of polyvinyl alcohol in the shape of the desired article into a coagulating bath ... | 07/06/1993 |
| 5137969 | Melt extrudable polyvinyl alcohol pellets having reduced maximum melt temperature and reduced gel content A method for extruding polyvinyl alcohol which comprises adding sufficient energy to the polyvinyl alcohol to both melt it and essentially eliminate the crystallinity in the melt, and simultaneously removing energy from the melt at a rate sufficient to avoid d... | 08/11/1992 |
| 5133916 | Polyvinyl alcohol fiber having excellent resistance to hot water and process for producing the same Provided are a polyvinyl alcohol fiber having a specific higher order structure, obtained by having the orientation and arrangement of molecular chains forming the fiber which comprises a crystalline region and an amorphous region lie in specific ranges t... | 07/28/1992 |
| 5132059 | Process for producing a polyvinyl formal ultrafiltration membrane An ultrafiltration membrane formed of a polyvinyl formal resin having a recurring unit represented by the general formula (I), and a process for producing this ultrafiltration membrane: ##STR1## wherein n is 550 to 950.... | 07/21/1992 |
