Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 6902103 | Bendable corrugated paperboard This invention provides a paperboard with an improved score line, the method for making the improved score line, and the apparatus for imparting the improved score line. The score line makes the process of folding a flat paperboard into a corner an easier and more c... | 06/07/2005 |
| 6866906 | Cut resistant paper and paper articles and method for making same The specification discloses a method for making a paper material having a reduced tendency to cut human skin. The method includes providing a papermaking furnish containing cellulosic fibers and from about 0.5 to about 5.0 wt % by weight dry basis expandable microsp... | 03/15/2005 |
| 6846529 | Low density paperboard articles The invention provides a low density paperboard material for use in producing an insulated container, and is especially well-suited for making cups. The paperboard material comprises a paperboard web including wood fibers and expanded microspheres, and has a relativ... | 01/25/2005 |
| 6802938 | Low density paper and paperboard articles The invention provides a low density paperboard material and associated method for use in producing an insulated container, and is especially well-suited for making cups. The paperboard material comprises a paperboard web including wood fibers and expanded microsphe... | 10/12/2004 |
| 6733965 | Microsatellite DNA markers and uses thereof Microsatellite, simple sequence repeat (SSR), markers have much potential for enhancing genome mapping and genotype identification research in forest genetics and tree breeding, SSR markers were developed by isolating and sequencing 1539 loblolly pine SSR clones for... | 05/11/2004 |
| 6706143 | Minimizing chlorinated organics in pulp bleaching processes The invention relates to methods for reducing the amount of halogenated organics produced during a halogen bleaching process for lignocellulosic pulp fibers. According to the disclosed invention, it has been discovered that the use of a chelating agent prior to a no... | 03/16/2004 |
| 6656401 | Method for extrusion coating multiple webs The specification discloses a method for extrusion coating multiple substrate webs on a dual or tandem extruder system having multiple extruder stations. The method includes as an initial step providing a first substrate web and a second substrate web whe... | 12/02/2003 |
| 6645642 | Paper articles exhibiting long term storageability and method for making same A method for increasing the long term storageability of a cellulosic paper or paperboard product. The method includes providing a paper or paperboard product made from cellulosic fibers having a basis weight ranging from about 80 to about 300 pounds per 3... | 11/11/2003 |
| 6613195 | Method for conditioning paper and paperboard webs The specification discloses embodiments of a process and related apparatus for conditioning a fibrous web in order to improve the efficiency of drying and calendering thereof. In the process, a moving fibrous web is conditioned after the drier unit of a p... | 09/02/2003 |
| 6592721 | Apparatus for dewatering a suction papermaking roll An air delivery device is provided for dewatering a suction roll in a paper machine by applying pressurized air to expel residual water or debris outwardly from through-holes. The air delivery device is positioned at a suitable circumferential position of... | 07/15/2003 |
| 6569284 | Elemental-chlorine-free bleaching process having an initial Eo or Eop stage The specification discloses an improved bleaching sequence which provides significant reduction in filtrate volumes and amounts of absorbable organic halide (AOX), color, and chemical oxygen demand (COD) in the effluent. These reductions are achieved with... | 05/27/2003 |
| 6511567 | Composite building components and method of making same A composite building component, including a non-planar molded composite web having two outer zones and two angled zones wherein the caliper of the angled zones differs from the caliper of at least one of the outer zones, and a flange disposed on an outer ... | 01/28/2003 |
| 6475447 | Apparatus and method for treating sesquisulfate waste streams The specification discloses an apparatus and method for treating a slurry containing sodium sesquisulfate to recover sulfate and acid constituents therefrom. The apparatus includes a treatment vessel having a separation wall delineating a clarifying zone ... | 11/05/2002 |
| 6416628 | Method of producing dimensionally stable paper and paperboard products A method of producing dimensionally stable paper and/or paperboard products by treating a hygroreactive cellulosic fiber matrix with a hydrophobic sizing agent solution; and drying the treated fibers using heat and/or pressure so that the hydrophobic sizi... | 07/09/2002 |
| 6390342 | Easy opening pour spout The present invention discloses and teaches an improved fitment for use on paperboard, gable top liquid containers and the like. More specifically the present invention teaches a easy open tamper evident seal including a pull ring attached to the seal by ... | 05/21/2002 |
| 6363621 | Method and apparatus for testing web bagginess A method and portable apparatus to evaluate the planar flatness of a paper sheet comprises a pair of closely spaced horizontal edges secured in relative parallelism. The horizontal edges are separated by about three feet. The horizontal edges define a hor... | 04/02/2002 |
| 6363694 | Bag for use in an automatic bag filling process A bag for use in an automatic bagging apparatus, said bag comprising: a back panel having a top edge, a bottom edge and first and second side edges; and a front panel having a top edge, a bottom edge and first and second side edges, the back panel being longer... | 04/02/2002 |
| 6358576 | Clay-filled polymer barrier materials for food packaging applications The specification discloses a layered composite containing a barrier layer comprising clay homogeneously dispersed in a continuous phase of polymeric material. The barrier layer is especially useful in the manufacture of liquid food containers. The clay/p... | 03/19/2002 |
| 6348127 | Process for production of chemical pulp from herbaceous plants A process for production of chemical fibrous pulp for making paper, paperboard and other fibrous products from herbaceous plants, such as kenaf. Pulp from the herbaceous plant is made by a process which involves densification of pieces of all or part of t... | 02/19/2002 |
| 6334678 | Method for applying chemical watermarks on substrate A method and an apparatus for applying chemical watermarks to a substrate, e.g., paper, using a digital printer which prints ink in a dot matrix pattern. The ink may contain either a translucentizing agent or an opacifying agent. The printer is digitally ... | 01/01/2002 |
| 6332953 | Paper product having enhanced printing properties and related method of manufacture A paper product suitable for use in making envelopes and the like and having enhanced printability. The enhancement in printability is attained through the use of shoe nip calendering. The final product has the following material properties: (1) a basis w... | 12/25/2001 |
| 6322768 | Recovery of chlorine dioxide from gas streams A method for recovering chlorine dioxide from a gas. The method involves contacting gas containing chlorine dioxide with an alkaline metal base and peroxide to form an alkaline metal chlorite solution, and oxidizing the alkaline metal chlorite solution to... | 11/27/2001 |
| 6273329 | Closure for hand filled bakery packages utilizing cohesive material A paperboard container adapted to hold pastries or the like is fashioned from a unitary blank. The blank is provided with a plurality of generally rectangular panels defined by fold lines. The container assumes two forms, with each having a bottom panel w... | 08/14/2001 |
| 6274001 | Method for calendering surface sized paper/paperboard to improve smoothness A calendering method which enhances the smoothness of surface sized paper/paperboard by a combination of temperature and moisture gradient calendering processes without the fiber sticking/picking problems that affect runnability and without using waterbox... | 08/14/2001 |
| 6267803 | Abrasive wear barrier A device for reducing wear to the inner wall of a cyclone separator by causing a protective layer of particulate to accumulate along the inner wall. The protective layer is facilitated by securing an expanded metal sheet along the inner wall of a cyclone ... | 07/31/2001 |
| 6257133 | Method and apparatus for controlling cross directional nip dynamics A method and apparatus for obtaining a desired nip pressure distribution profile in the cross direction of a paper web. The paper web passes through a nip, the latter defined by at least one elastomer covered roll, the covered roll having polarizable part... | 07/10/2001 |
| 6252135 | Production of syringyl lignin in gymnosperms The present invention relates to a method for producing syringyl lignin in gymnosperms. The production of syringyl lignin in gymnosperms is accomplished by genetically transforming a gymnosperm genome, which does not normally contain genes which code for ... | 06/26/2001 |
| 6237839 | Paperboard beverage carrier An improved paperboard beverage carrier is disclosed having an improved lift handle. The improved lift handle comprises a laterally extending elongated handle opening within the top panel of the carrier. At least one continuous score line encircles the ha... | 05/29/2001 |
| 6231718 | Two phase ozone and oxygen pulp treatment In the post-digestion treatment of kraft cellulosic pulp, the improvement comprising subjecting the pulp to a two-phase process in which the two-phases are substantially identical and each phase includes contacting the pulp first with an ozone/oxygen mixt... | 05/15/2001 |
| 6221798 | Method for producing laminated webs The specification discloses a method for laminating a synthetic film or sheet to a fibrous web. According to the method, a heat-softenable material is combined as a sheet, film, spray or powder with a continuous fibrous web in interfacial contact with fib... | 04/24/2001 |
| 6213644 | Multiply bag with tear strip opening mechanism A multiply bag and method of forming the same in which the inner ply of the bag has a longitudinal extending tear strip assembly grippable by the user to facilitate opening of the bag.... | 04/10/2001 |
| 6213642 | Paper bag with tear strip having indicia A paper bag formed from a unitary blank and having a longitudinal seam running along its length. The seam is of a double layer of paper and has two spaced and parallel adhesive areas joining the two layers. A pair of parallel perforated lines border respe... | 04/10/2001 |
| 6207020 | Method for conditioning paper and paperboard webs The invention relates to of a process and related apparatus for conditioning a fibrous web in order to improve the efficiency of drying and calendering thereof. In the process, a moving fibrous web is conditioned after the drier unit of a papermaking mach... | 03/27/2001 |
| 6190500 | Multilayer linerboard having improved printing properties and related method of manufacture A multilayer linerboard product having a top layer made up of bleached/unbleached virgin or recycled pulp and at least one bottom layer made up of unbleached pulp. The external surface of the top layer has reduced gloss mottle and improved printing proper... | 02/20/2001 |
| 6176974 | Method for determining electrokinetic properties of papermaking furnish A method and apparatus for determining electrokinetic properties of a papermaking furnish includes mixing a sample of furnish in a container with a known amount of a charged additive and then measuring the streaming potential of the resultant ionically mo... | 01/23/2001 |
| 6153701 | Wettable polypropylene composition and related method of manufacture A wettable polypropylene composition comprising polypropylene and a hydrophilic, polar compound which includes functional sites selected from the group consisting of carboxyl, hydroxy, ether or ester moieties, wherein the polypropylene composition is wett... | 11/28/2000 |
| 6150005 | Synthetic paper The specification discloses a synthetic paper composite web containing a relatively smooth, dense top layer comprising synthetic pulp, a relatively soft non-woven base layer of synthetic filaments and a low density polyolefin film layer substantially cont... | 11/21/2000 |
| 6135531 | Truck trailer scuff liner A truck trailer scuff liner formed from parallel grained laminated veneer panel adapted to be bolted to the insides and nose of a dry wall van trailer. The sections of the laminated veneer panel are secured together by a finger joint arrangement in which ... | 10/24/2000 |
| 6126702 | Apparatus and method for treating sesquisulfate waste streams The specification discloses an apparatus and method for treating a slurry containing sodium sesquisulfate to recover sulfate and acid constituents therefrom. The apparatus includes a treatment vessel having a separation wall delineating a clarifying zone ... | 10/03/2000 |
| 6076730 | Carton with locking mechanism A carton and blank for forming the same including a plurality of spaced apart sections having respective end panels, at least one locking mechanism including a notch formed in one of the end panels and an edge portion formed in an adjacent end panel, each... | 06/20/2000 |
