Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 6902770 | Method of transparentizing paper subtrate and paper assembly with transparentized window The invention provides an improved method of transparentizing a paper substrate to produce a translucent area or “window” through which information and data are displayed. The method of the invention applies a transparentizing material to a preselected applicati... | 06/07/2005 |
| 6863774 | Polishing pad for use in chemical-mechanical planarization of semiconductor wafers and method of making same A polishing pad for use in chemical mechanical polishing of substrates that being made of fibrous matrix such as cellulose with a binder consisting of thermoset resin material, such as phenolic resin. The polishing surface is ground to form asperities. The polishing... | 03/08/2005 |
| 6837452 | Flowable and meterable densified fiber flake A process for making singulated pulp flakes is provided. The process includes dewatering liquid pulp stock to a consistency of about 30 to about 50% solids. The process includes initial flaking to break up the dewatered pulp bundles into semi-uniform flakes having a... | 01/04/2005 |
| 6787574 | Emulsification of alkenyl succinic anhydride size Alkenyl succinic anhydride (ASA) size emulsions are prepared using a grafted cationic acrylamide starch co-polymer as an emulsification agent. The ASA size emulsions of the present invention exhibit significantly greater stability compared to presently available ASA... | 09/07/2004 |
| 6784126 | High pulp content nonwoven composite fabric A high pulp content nonwoven composite fabric is disclosed. The composite fabric contains 1) from more than about 0 to less than about 30 percent, by weight, of a nonwoven layer of conjugate spun filaments, the filaments containing at least one low-softening point c... | 08/31/2004 |
| 6602385 | Method of improving the brightness of calcium carbonate filled paper A method of improving the brightness of calcium carbonate filled paper. The filled paper is dried and then bleached with an aqueous solution of a bleaching agent. The process may be used on all grades of paper that contain filler and is particularly usefu... | 08/05/2003 |
| 6569287 | System and method of producing corrugated products with on-line corrugation The present invention relates to a system and method of making paperboard and paperboard corrugation that negates the steps of winding rolls of containerboard on machine reels of separate paper machines, subsequent rewinding and slitting of paperboard and... | 05/27/2003 |
| 6372094 | Pulp drying line and method for drying pulp A pulp drying line which comprises a pulp press for pre-drying the pulp and a defibrator for shredding the pre-dried pulp into a loose pulp. The drying line further comprises a web forming section and a pulp dryer section. The loose pulp coming from the d... | 04/16/2002 |
| 6217708 | Double-side and full color transfer paper for electrophotography A double-side and full color transfer paper for electrophotography having a paper layer divided into a felt side and a wire side, wherein the difference between the orientation of fiber in the felt side and that in the wire side of the paper layer is 0.1 ... | 04/17/2001 |
| 6024836 | Process and device for production of a pulp web A process and device for producing a pulp web utilizes several independently driven aggregates (i.e., discrete groups) to attain a median web dry content of, e.g., 60%. The number of driven aggregates may depend upon an initial wet strength of the wet pul... | 02/15/2000 |
| 6017419 | Method and assembly for storing, transporting and using a metering size press rod assembly in a paper-making machine A metering size press rod assembly specifically for use in a paper-making machine is stored and transported in a container and use in the paper-making machine. A plurality of metering size press rod assemblies are assembled. A storage sand transport conta... | 01/25/2000 |
| 5961784 | Method for reducing the consumption of fresh water in a paper mill by means of a cooling tower A method for reducing the consumption of fresh water and energy in a paper mill in which fresh water is passed into the paper mill for various needs, and a cooling tower is utilized for cooling water heated in the papermaking process. All fresh waters or ... | 10/05/1999 |
| 5958186 | Nonwoven material containing a mixture of pulp fibres and long hydrophillic plant fibres and a method of producing the nonwoven material Nonwoven material produced by hydroentanglement of a wet-laid or foam-formed fibre web. The material comprises a mixture of short plant fibres, in particular pulp fibres, and long hydrophillic plant fibres, where the major portion of the fibres presents a... | 09/28/1999 |
| 5834095 | Treatment process for cellulosic fibers Disclosed is a process for treating cellulosic fibers using high temperatures that is effective to result in modified cellulosic fibers that exhibit desired properties such as water retention values and wet curl values. The high temperature process is qui... | 11/10/1998 |
| 5672306 | Method of making an adsorbent fibrous nonwoven composite structure Disclosed is an adsorbent fibrous nonwoven structure composed of a matrix of pulp fibers having a first exterior surface and a second exterior surface; and an adsorbent material integrated into the pulp fiber matrix so that the concentration of adsorbent ... | 09/30/1997 |
| 5626719 | System for sizing paper and cardboard A process for increasing the resistance of the cut edges of liquid packaging board to penetration by hot hydrogen peroxide, comprising adding to an aqueous pulp slurry at a neutral to alkaline pH, either separately or in preblended form an aqueous emulsio... | 05/06/1997 |
| 5505820 | Method for providing enhanced smoothness for a paper web A paper rawstock web is wet densified on a papermachine at a moisture content greater than about 20% and less than about 50%, and preferably from about 25-35%, in a calender device at nip pressures greater than about 3000 psi, and preferably within the ra... | 04/09/1996 |
| 5393601 | Non-woven solidified by means of a melt binder A non-woven solidified by means of a melt binder is described, which is based on supporting aramid fibers and on binding fibers made of thermoplastic aramids whose melting point is below the melting or decomposition point of said supporting aramid fibers.... | 02/28/1995 |
| 5389202 | Process for making a high pulp content nonwoven composite fabric A high pulp content nonwoven composite fabric is disclosed. The composite fabric contains more than about 70 percent, by weight, pulp fibers which are hydraulically entangled into a continuous filament substrate. This high pulp content composite nonwoven ... | 02/14/1995 |
| 5324391 | Method for crosslinking cellulose fibers A method is disclosed for preparing a quantity of individual treated fibers from one or more fiber mats in a treatment apparatus. The apparatus comprises a fiber treatment zone, a conveyor for conveying each mat through the fiber treatment zone, wherein e... | 06/28/1994 |
| 5238648 | Hermetic enclosure assembly for preservational storage and/or display of otherwise degradable objects A hermetic enclosure assembly, having utility for preservational storage and/or display of objects susceptible to degradation by exposure conditions such as ultraviolet radiation, visible light, oxygen, humidity, microbial, fungal, and insect species, int... | 08/24/1993 |
| 5066363 | Method of forming pulp bales with dissolvable PVA baling strap material A method of processing pulp laps and a soluble strap material for holding such laps in a bale are disclosed. In accordance with the method the laps are maintained in the configuration of the bale by soluble straps comprised of PVA and are immersed in a pu... | 11/19/1991 |
| 5061344 | Method of making soft paper Soft paper from cellulose fibres is manufactured by wet-forming a first fibre layer. Thereafter air-borne dry fibres are deposited directly on one or both sides of the wet-formed layer while this is still wet, so that a second and possibly a third fibre l... | 10/29/1991 |
| 5026456 | Aramid papers containing aramid paper pulp An aramid paper which has high porosity while exhibiting the usual tensile properties is disclosed. The paper has good saturability and a smooth surface while retaining high break strength.... | 06/25/1991 |
| 5023126 | Composite towels and method for making composite towels A folded towel and a method for making a folded towel comprised of a composite product including one surface formed by smooth tissue and an opposite surface formed by an absorbent dry formed fabric product.... | 06/11/1991 |
| 4917762 | Process for manufacturing a liquid absorbing pad A liquid absorbing pad, in particular for use in hygiene articles and sanitary products, such as diapers, bed pads, sanitary napkins, pads for incontinence, panty shields, nursing pads or the like, is produced in a dry and direct process on the basis of w... | 04/17/1990 |
| 4728394 | Semipermeable membrane support and process for preparation thereof Disclosed is a semipermeable membrane support and a process for making the same. The support is formed of a non-woven fabric of a laminated structure having a low density layer with an air permeability of 5 to 50 cc/cm2 /sec and a high density ... | 03/01/1988 |
| 4504357 | Security with identifying marks printed in the substance of a paper layer A security with a paper substrate which exhibits identifying marks in the form of color patterns. The color patterns are arranged in the substance of the paper substrate in such a manner that the normal structure of the fibres in the substance of the pape... | 03/12/1985 |
| 4486268 | Air/water hybrid former A method and apparatus especially adapted to produce a ply separable web requiring substantially less energy input for drying. The apparatus comprises a headbox having at least three stock flow channels, at least one of which being adapted to convey conve... | 12/04/1984 |
| 4476323 | Surface-active quaternary ammonium compounds for treatment of textiles and cellulosic materials The invention relates to new surface-active quaternary ammonium compounds having the general formula: ##STR1## wherein: R1 and R2 are each hydrocarbon groups having from about twelve to about forty carbon atoms; R3 an... | 10/09/1984 |
| 4435248 | Process for producing photographic paper A process for producing photographic paper comprising bleaching a paper web containing from 0 to 65% by weight water is disclosed.... | 03/06/1984 |
| 4432833 | Pulp containing hydrophilic debonder and process for its application The invention provides a cellulosic pulp having reduced interfiber bonding and therefore reduced physical strength while maintaining excellent hydrophilic properties. The pulp is produced by treating the cellulosic fibers with a hydrophilic debonder havin... | 02/21/1984 |
| 4431481 | Modified cellulosic fibers and method for preparation thereof Cellulosic fibers, characterized by a lack of swellability and incapable of natural fiber-to-fiber bonding, are produced by a process which comprises treating an aqueous slurry of the fibers with a formaldehyde-free polymeric compound, heating the treated... | 02/14/1984 |
| 4344818 | Air/water hybrid former A method and apparatus especially adapted to produce a ply separable web requiring substantially less energy input for drying. The apparatus comprises a headbox having at least three stock flow channels, the outer channels being adapted to convey conventi... | 08/17/1982 |
| 4309245 | Process for manufacturing boron nitride fiber felt using a Fourdrinier machine A process is disclosed for producing a non-woven boron nitride (BN) fiber felt. Boron nitride fibers are blended with a lesser amount of boron oxide fibers and a nondissolving, anhydrous liquid medium to form a homogeneous slurry. The slurry is deposited ... | 01/05/1982 |
| 4309248 | Process for manufacturing boron nitride fiber mats using calender rolls A process is disclosed for producing a non-woven, boron nitride-bonded boron nitride fiber mat, suitable for use as an electric cell separator in a lithium-sulfide battery. A web having a combination of structural boron nitride (BN) fibers and interstitia... | 01/05/1982 |
| 4309244 | Process for manufacturing boron nitride fiber mats A process is disclosed for producing a non-woven, boron nitride-bonded boron nitride fiber mat, suitable for use as an electric cell separator in a lithium-sulfide battery. Molten boron oxide is centrifugally spun into strands and attenuated by an annular... | 01/05/1982 |
| 4308094 | Diaphragm for speaker and method of producing same A diaphragm for a speaker obtained by forming a diaphragm base by screen processing a mixture of carbon fiber, pulp and polyvinyl alcohol fiber as a binder in a manner similar to that employed for making paper, depositing a thermosetting resin on the diap... | 12/29/1981 |
| 4247362 | High yield fiber sheets Wet-laid sheets of softwood high yield fibers in combination with hardwood high yield fibers. The sheets, which are strong enough to be handled by commercial equipment, are formed on conventional papermaking machines using a furnish comprising a major pro... | 01/27/1981 |
| 4217169 | Method of manufacturing fibrous sheet material A distinguishing feature of the method lies in that the moist fibrous raw material is constituted by a suspension of a fibrous material with a fibre concentration of 5-30 wt. %; said suspension is heated before dispersion to 102°-145° under a pressure o... | 08/12/1980 |
