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| Number | Title | Issue Date |
| 8137506 | Paper comprising PIPD pulp and process for making same The invention concerns a paper comprising polypyridobisimidazole fibers, where the apparent density of the paper is from 0.1 to 0.5 g/cm3 and the tensile strength of the paper in N/cm is at least 0.00057X*Y, where X is the volume portion of polypyridobisi... | 03/20/2012 |
| 7402225 | Veil with a PVOH fibre binding agent The process according to the invention comprises: a step in which chopped filaments and discontinuous PVOH fibers are dispersed in a process water, followed by a step in which a bed is formed in a forming device by... | 07/22/2008 |
| 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 |
| 7323083 | Adhesion promoters for glass-containing systems Resinous coatings can be applied to glass, exhibiting improved adhesion thereto, by including in the coating composition a sulfonic acid derived compound such as 2-acrylamido-2-methylpropanesulfonic acid or a salt thereof. Alternatively, the glass can be first coate... | 01/29/2008 |
| 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 |
| 7250382 | Water-disintegratable sheet and manufacturing method thereof Disclosed is a water disintegratable sheet including bast/leaf fibers and at least one kind of primary fibers. The bast/leaf fibers have a Canadian Standard freeness value of at most 600 milliliter and occupy 2 to 75% by weight of a total fiber weight of the sheet. | 07/31/2007 |
| 7247665 | Polyoxymethylene with improved resistance to acids and its use Polyoxymethylene with improved resistance to acids, comprising A from 84 to 99.79% by weight of at least one polyoxymethylene homo- or copolymer, B from 0.1 to 5% by weight of at least one polyalkylene glycol,... | 07/24/2007 |
| 7228973 | Nonwoven fibrous media especially useful for the separation of blood constituents Blood separation media include a non-woven web of fibrillated and non-fibrillated synthetic staple fibers. The fibrillated synthetic staple fibers will most preferably have a Canadian Standard Freeness (CSF) of less than about 300 mL, whereas the non-fibrillated syn... | 06/12/2007 |
| 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 |
| 7186318 | Soft tissue hydrophilic tissue products containing polysiloxane and having unique absorbent properties The present invention is a polysiloxane treated hydrophilic tissue sheet having a polydialkylsiloxane content of about 0.4% or greater by weight of dry pulp fibers. The polysiloxane treated hydrophilic tissue sheet may also have a wet out time after aging 20 days at... | 03/06/2007 |
| 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 |
| 6974496 | Apparatus for thermal swing adsorption and thermally-enhanced pressure swing adsorption The present invention provides compact adsorption systems that are capable of rapid temperature swings and rapid cycling. Novel methods of thermal swing adsorption and thermally-enhanced pressure swing adsorption are also described. In some aspects of the invention,... | 12/13/2005 |
| 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 |
| 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 |
| 6777103 | Fiber cement composite material using biocide treated durable cellulose fibers A fiber cement composite material providing improved rot resistance and durability, the composite material incorporating biocide treated fibrous pulps to resist microorganism attacks. The biocide treated fibers have biocides attached to inner and outer surfaces of i... | 08/17/2004 |
| 6746571 | Highly-oriented fibrous mats A mat containing highly machine direction oriented (90% or greater), discontinuous reinforcement fibers, is produced on inclined wire or rotary paper making machinery. Fibers are first uniformly dispersed in an aqueous medium containing thickeners and wetting agents... | 06/08/2004 |
| 6737369 | Cured non-woven mat of a mixture of fibers A coated fiber mat of improved tear strength upon dividing pieces of the coated mat and the coating is provided. The coated mat is a cured, non-woven mat including a mixture of fibers having different fiber lengths. The fibers contain a polysiloxane compound and are... | 05/18/2004 |
| 6720388 | Polypropylene fibres A polypropylene blend including from 0.5 to 50% by weight of a syndiotactic polypropylene having a multimodal molecular weight distribution and at least 50% by weight of an isotactic polypropylene. ... | 04/13/2004 |
| 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 |
| 6620865 | Polycarboxylic acid crosslinked cellulosic fibers Cellulosic fibers intrafiber crosslinked with a polymeric polycarboxylic acid crosslinking agent are disclosed. In one embodiment, the polymeric polycarboxylic acid is polyacrylic acid and, in another embodiment, the polycarboxylic acid is polymaleic acid... | 09/16/2003 |
| 6562193 | Using centrifugal pumps in the foam process of producing non-woven webs A non-woven web of fibrous material is produced using a moving foraminous element in the practice of the foam process. A first foam slurry of air, water, fibers and a surfactant is generated and centrifugally pumped into contact with the moving foraminous... | 05/13/2003 |
| 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 |
| 6451167 | Wetlay process for manufacture of highly-oriented fibrous mats A mat containing highly machine direction oriented (90% or greater), discontinuous reinforcement fibers, is produced on inclined wire or rotary paper making machinery. Fibers are first uniformly dispersed in an aqueous medium containing thickeners and wet... | 09/17/2002 |
| 6312561 | Flame barrier compositions and their use A sheet composition with certain proportions of meta-aramids and mica used as a flame barrier composition.... | 11/06/2001 |
| 6306493 | Laser-markable paper and board products There is provided laser-markable paper and board products which include micronized polymers comprising of linear aromatic polyesters and/or of linear polyarylenes having a particle size of from 0.1 to 100 μm as absorber material and material for carboniz... | 10/23/2001 |
| 6267843 | Wet-laid nonwoven mat and a process for making same A method for making a nonwoven reinforcing may for vinyl floor coverings is described. A base mat is formed from a mixture of glass fibers and polymeric binder fibers and/or powder, follows by treatment with a second water-based polymeric binder compositi... | 07/31/2001 |
| 6174826 | Wet-laid nonwoven polyolefin battery separator substrate A nonwoven composite web suitable for use, after post-treatment with a wetting agent, as a battery separator is formed by a wet process on a papermaking machine. One nonwoven composite material is made from a furnish of polyolefin binder fibers and polyol... | 01/16/2001 |
| 6090905 | Compositions and methods for controlling stickies Mannich-derivatized polyphenolic compositions prepared by the reaction of a phenolic compound having at least two phenol rings with an aldehyde and an amphoteric compound having both a basic moiety and an acidic moiety are disclosed. Methods for utilizing... | 07/18/2000 |
| 6066235 | Wetlay process for manufacture of highly-oriented fibrous mats A mat containing highly machine direction oriented (90% or greater), discontinuous reinforcement fibers, is produced on inclined wire or rotary paper making machinery. Fibers are first uniformly dispersed in an aqueous medium containing thickeners and wet... | 05/23/2000 |
| 6063239 | Security paper The invention relates to security paper and in particular to a method for the manufacture of security paper that is provided with high-quality watermarks. In particular such a method comprises forming a papermaking suspension comprising cellulosic fibers ... | 05/16/2000 |
| 5972166 | Non-woven fiber mat and method for forming same The present invention is a non-woven fiber mat suitable for reinforcing resilient sheet floor coverings, such as vinyl floor coverings. The non-woven fiber mat is in the form of a sheet of reinforcement fibers which at least includes semi-coiled fibers an... | 10/26/1999 |
| 5972100 | Pretreatment of filler with cationic ketene dimer A filler of inorganic particles, cellulose reactive size and cationic dispersing agent is provided, the use of which results in the capability to obtain the desired sizing level practically unaffected by the level of filler addition.... | 10/26/1999 |
| 5873909 | Method and compositions for treating fibrous cellulosic materials The application of a treating solution containing polyhydroxy compound and choline chloride to a fibrous cellulosic material is made more uniform and reproducible by including in the treating solution a colorizing amount of a fugitive tint, by which the u... | 02/23/1999 |
| 5849856 | Water soluble resins and application thereof to paper coating A water soluble resin obtainable by reacting at least two reactants comprising a polyamine and a urea compound, or at least four reactants comprising a polyamine, a urea compound, a dibasic carboxylic acid compound and a lactam; and then reacting the reac... | 12/15/1998 |
| 5795439 | Process for making a non-woven, wet-laid, superabsorbent polymer-impregnated structure The instant invention is directed to a process for making a non-woven, wet-laid, superabsorbent polymer-impregnated structure. The process generally comprises the steps of: mixing; deliquifying; and drying. Specifically, fibers, superabsorbent polymers, a... | 08/18/1998 |
| 5755828 | Method and composition for increasing the strength of compositions containing high-bulk fibers Crosslinked cellulose fibers having free pendant carboxylic acid groups are disclosed. The fibers include a polycarboxylic acid covalently coupled to the fibers, and are crosslinked with a crosslinking agent having a cure temperature lower than the cure t... | 05/26/1998 |
| 5650221 | High strength, low pressure drop sensible and latent heat exchange wheel A sensible and latent heat exchange or adsorbent media formed from an improved desiccant or adsorbent paper having higher strength and thinner gauge to provide increased area of media, the media having a multiplicity of passageways therethrough through wh... | 07/22/1997 |
