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| Number | Title | Issue Date |
| 8168039 | Electroconductive aramid paper and tape made therefrom This invention relates to a tape made from an aramid paper, and a process for making the paper, the papers comprising 5 to 65 parts by weight aramid fiber, 30-90 parts by weight aramid fibrids, and 1-20 parts by weight of conductive filler, based on the total weight... | 05/01/2012 |
| 7850821 | Household thin paper A household thin paper, that offers flexibility and further difficulty in tearing, comprising a polyester-based compound represented by General Formula (1): wherein R1 is HO— or HO(R2O)a-, R2 | 12/14/2010 |
| 7744724 | Polyareneazole/thermoplastic pulp and methods of making same The present invention relates to thermoplastic and polyareneazole pulp for use as reinforcement material in products including for example fluid sealing materials, as a processing aid including its use as a thixotrope, and as a filter material. The pulp comprises (a... | 06/29/2010 |
| 7740741 | Para-aramid pulp including meta-aramid fibrids and processes of making same The present invention relates to para-aramid pulp including meta-aramid fibrids for use as reinforcement material in products including for example friction materials, fluid sealing materials, and papers. The invention further relates to processes for making such pu... | 06/22/2010 |
| 7727356 | Polyareneazole/wood pulp and methods of making same The present invention relates to wood pulp and polyareneazole pulp for use as reinforcement material in products including for example friction materials, fluid sealing materials, and papers. The pulp comprises (a) irregularly shaped, wood pulp fibrous structures, (... | 06/01/2010 |
| 7727358 | Pulp comprising polypyridobisimidazole and other polymers and methods of making same The present invention relates to fibrous pulp comprising a combination of polypyridobisimidazole fibrous structures and fibrous structures derived from another polymer. The invention further relates to processes for making such pulp and articles comprising the pulp.... | 06/01/2010 |
| 7727357 | Polyareneazole/thermoset pulp and methods of making same The present invention relates to thermoset and polyareneazole pulp for use as reinforcement material in products including for example fluid seals and friction materials, as a processing aid including its use as a thioxotrope, and as a filter material. The pulp comp... | 06/01/2010 |
| 7686920 | Fibrillated polypyridobisimidazole floc The invention concerns a process for making a fibrillated polypyridobisimidazole floc comprising the steps of: cutting polypyridobisimidazole filaments to an average cut length of from about 0.5 to 10 mm; and applying energy to the polypyridobisimidazole filaments t... | 03/30/2010 |
| 7455750 | Meta- and para-aramid pulp and processes of making same The present invention relates to meta- and para-aramid pulp for use as reinforcement material in products such as seals and friction materials. The pulp comprises (a) fibril free meta-aramid particles, (b) irregularly shaped, para-aramid fibrous structures, and (c) ... | 11/25/2008 |
| 7396436 | Unitary fibrous structure comprising randomly distributed cellulosic and non-randomly distributed synthetic fibers A process for making a unitary fibrous structure comprises steps of: providing a fibrous web comprising a plurality of cellulosic fibers randomly distributed throughout the fibrous web and a plurality of synthetic fibers randomly distributed throughout the fibrous w... | 07/08/2008 |
| 7285183 | Making foam coated mats on-line A new foam coated nonwoven fibrous mat having properties particularly suited for a facer on gypsum wallboard, laminates made therefrom and the method of making the mat is disclosed. The mat preferably contains a major portion of glass fibers and a minor portion of a... | 10/23/2007 |
| 7272915 | Shingle and mat tensile strength with urea formaldehyde resin modifier A composite sheet, and a process of making the same, including cured modified urea formaldehyde reinforced by glass fibers. The modifier is an acrylonitrile-butadiene-styrene copolymer. A roofing shingle, formed by coating the composite sheet with filled asphalt, re... | 09/25/2007 |
| 7214293 | Process for making a unitary fibrous structure comprising cellulosic and synthetic fibers A unitary fibrous structure comprises a plurality of cellulosic fibers randomly distributed throughout the fibrous structure, and a plurality of synthetic fibers distributed throughout the fibrous structure in a non-random repeating pattern. A process for making the... | 05/08/2007 |
| 7175741 | Reducing odor in absorbent products Hydrogen sulfide is removed or reduced in absorbent products by the use of a particulate material attached to pulp fiber by a retention aid. The particulate material can remove or reduce the hydrogen sulfide in the environment surrounding the fiber. Suitable materia... | 02/13/2007 |
| 7147799 | Methods of using an oxygen scavenger An oxygen scavenging packet containing an iron-based oxygen scavenger and an electrolyte is set forth in which the rate of uptake of oxygen is increased by virtue of the introduction into the packet of an oxygen uptake accelerator containing water. Methods of increa... | 12/12/2006 |
| 7115221 | Method for producing graphite powder with an increased bulk density A method for increasing the Scott density of synthetic and/or natural graphite powders of any particle size distribution, preferably of highly-pure graphite, by subjecting the graphite powder to an autogenous surface treatment. The powder is used, in particular, for... | 10/03/2006 |
| 7112259 | High temperature paper Provided is a paper structure comprised of two outside layers and at least one inside layer. The two outside layers are comprised of substantially cellulosic pulp fiber, and the inside layer is comprised of a high temperature fiber and a polymeric binder, and prefer... | 09/26/2006 |
| 7067038 | Process for making unitary fibrous structure comprising randomly distributed cellulosic fibers and non-randomly distributed synthetic fibers A process for making a unitary fibrous structure comprises steps of: providing a fibrous web comprising a plurality of cellulosic fibers randomly distributed throughout the fibrous web and a plurality of synthetic fibers randomly distributed throughout the fibrous w... | 06/27/2006 |
| 7052580 | Unitary fibrous structure comprising cellulosic and synthetic fibers A unitary fibrous structure comprises a plurality of cellulosic fibers randomly distributed throughout the fibrous structure, and a plurality of synthetic fibers distributed throughout the fibrous structure in a non-random repeating pattern. A process for making the... | 05/30/2006 |
| 7051883 | Wetlaid-spunbond laminate membrane support Nonwoven fabric laminates suitable for use as semipermeable membrane supports are provided. The fabric laminates generally include at least two layers: a spunbond layer of continuous filament fibers and a wet-laid layer of discontinuous filaments. The resulting semi... | 05/30/2006 |
| 7026033 | Heat-resistant synthetic fiber sheet A heat-resistant fiber paper-like sheet comprises 40 to 97% by mass of heat-resistant organic synthetic polymers staple fibers, 3 to 60% by mass of heat resistant organic synthetic polymer fibrid and or an organic resin binder, in a portion of the staple fibers, eac... | 04/11/2006 |
| 6998019 | Glazed paper webs Provided is a process for preparing a smooth and glossy surfaced paper web. The process comprises subjecting the paper web to shear by using calender rolls driven at different speeds or calender rolls with different diameters. The resulting paper has a totally diffe... | 02/14/2006 |
| 6942757 | Process for preparing para-aromatic polyamide paper A process for producing a paper made essentially of a para-aromatic polyamide and having agglutinate portions, the process including subjecting to papermaking a composition comprising at least one member selected from the group of short fibers, staple fibers, pulp a... | 09/13/2005 |
| 6926846 | Methods of using an oxygen scavenger An oxygen scavenging packet containing an iron-based oxygen scavenger and an electrolyte is set forth in which the rate of uptake of oxygen is increased by virtue of the introduction into the packet of an oxygen uptake accelerator containing water. Methods of increa... | 08/09/2005 |
| 6921459 | Process for making a sheet of aramid fibers using a foamed medium The present invention relates to a method for forming a non-woven fibrous web comprised of aramid fibers and aramid fibrid which comprises forming a foam furnish by agitating the fibers and fibrid in a foamed medium, and passing the foam furnish onto a screen and de... | 07/26/2005 |
| 6919026 | Semipermeable membrane support and process of preparation thereof A semipermeable membrane support includes, a non-woven fabric including main fiber and binder fiber, both of which are formed of synthetic resin fine fiber, the non-woven fabric being manufactured by heating and pressing after paper making, wherein the semipermeable... | 07/19/2005 |
| 6908983 | Synthesis of high solids resins from amine terminated polyamides The present invention contemplates a process for forming polyaminoamide polymers formed by the reaction of a dibasic acid/ester with excess amounts of an amine; the intermediate polymer resulting therefrom; a process for synthesizing effective, high solids resins re... | 06/21/2005 |
| 6890636 | Thermally stable, non-woven, fibrous paper, derivatives thereof, and methods for manufacturing the same A thermally stable, non-woven, fibrous paper comprising at least one polymer represented by structural formula I: wherein R1-6 are the same or different and comprise H, a hydroxyl group, a straight or branch... | 05/10/2005 |
| 6843887 | Low hygroscopic paper and method of producing the same Provided is low hygroscopic paper obtainable by heat-pressing composite paper comprising a pulp component and/or fiber component and, a liquid crystal polymer filler component made of a liquid crystal polymer exhibiting optical anisotropy in molten state, at a tempe... | 01/18/2005 |
| 6838401 | Heat-resistant fibrous paper A heat-resistant fiber paper sheet which is formed from staple fibers made from a heat-resistant organic polymer, undrawn or low ratio drawn para-aromatic polyamide staple fibers, and an organic resin binder and/or fibrids comprising a heat-resistant organic polymer... | 01/04/2005 |
| 6793772 | Use of melamine resin fibers and insulating materials based on melamine resin fibers and polyalkylene terephthalate fibers The disclosure is directed to a method of using melamine resin fibers, to an insulating material comprising a) from 5 to 95% by weight of melamine resin, and b) from 5 to 95% by weight of polyalkylene terephthalate fibers, and to processes for p... | 09/21/2004 |
| 6752906 | Loudspeaker and method for the preparation thereof A loudspeaker in which the input resistance is improved and the effect of humidity on the playback frequency response is suppressed, and a method for the preparation of the loudspeaker. A sheet-like product, containing glass particles with a particle size of 8 nm to... | 06/22/2004 |
| 6706147 | Process for making fiber mats for materials of construction having improved tear strength The invention relates to a coated fiber mat of improved tear strength upon dividing pieces of the coated mat and the coating which comprises a cured, non-woven, fiber glass mat containing a polysiloxane wherein the fibers are fixedly distributed in a formaldehyde ty... | 03/16/2004 |
| 6677427 | Enzyme-catalyzed polyamides and compositions and processes of preparing and using the same A polyamide, the enzymatic reaction product of at least one polyamine and diester, and processes for preparing and using the same. In addition, processes for preparing and using the enzymatic reaction product as creping adhesives and wet strength resins t... | 01/13/2004 |
| 6554962 | Loudspeaker diaphragm A loudspeaker in which the input resistance is improved and the effect of humidity on the playback frequency response is suppressed, and a method for the preparation of the loudspeaker. A sheet-like product, containing glass particles with a particle size... | 04/29/2003 |
| 6551456 | Process to prepare synthetic fiber paper The present invention provides a synthetic fiber paper, the synthetic fiber paper comprises poly (phenylene terephthal amide) fiber, polyethylene glycol terephthalate fiber and powdered mica. The synthetic fiber paper has high-temperature resistance, high... | 04/22/2003 |
| 6537424 | High temperature paper Provided is a paper structure comprised of two outside layers and at least one inside layer. The two outside layers are comprised of substantially cellulosic pulp fiber, and the inside layer is comprised of a high temperature fiber and a polymeric binder,... | 03/25/2003 |
| 6517676 | Recyclable thermoplastic moldable nonwoven liner for office partition and method for its manufacture A rigid thermoformable recyclable nonwoven liner material is formed by a wet process on a papermaking machine. The rigid thermoformable nonwoven liner material is intended to be laminated to a woven fabric and then thermomolded around a wooden panel to fo... | 02/11/2003 |
| 6475340 | Solid phase extraction membrane A wet-laid, porous solid phase extraction sheet material that contains both active particles and binder and that possesses excellent wet strength is described. The binder is present in a relatively small amount while the particles are present in a relativ... | 11/05/2002 |
| 6465389 | Heat resistant catalyst sheet and process for producing same There are provided (i) a heat resistant catalyst sheet having an aramid fiber and a catalyst component-containing titania fiber; and (ii) a process for producing a heat resistant catalyst sheet, which has the step of making paper from a mixture of an aram... | 10/15/2002 |
