Of Carbohydrate Patents (Class 428/532)
  • Patent number: 6506823
    Abstract: A curable nitrocellulose based coating composition having four essential components: nitrocellulose, polymerizable reactive diluents whose homopolymers have glass transition temperatures both above and below 25° C. and acrylated urethane. The composition may also contain an initiator whereby thermal or light curing of the composition can be achieved.
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: January 14, 2003
    Assignee: Raffi & Swanson, Incorporated
    Inventors: Elizabeth G. Burns, Charles C. Shearer
  • Patent number: 6506488
    Abstract: Described are articles having an aminoplast resin photochromic coating prepared from an aminoplast resin, components(s) having hydroxyl functional groups and photochromic substances. The coatings exhibit a Fischer microhardness of from 45 to 180 Newtons per mm2 and desirable photochromic properties, i.e., the formation of darker activated colors and faster rates of photochromic activation and fade when irradiated with ultraviolet light. Also described are photochromic aminoplast resin articles.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: January 14, 2003
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Kevin J. Stewart, Jeanine A. Conklin, Cletus N. Welch, James B. O'Dwyer, Shanti Swarup
  • Patent number: 6506501
    Abstract: The permanent shaping method avoids overcurling of hair tips. Prior to performing the permanent shaping of the hair, the hair tips are protected by wrapping the hair tips with an impregnated foil and then performing the permanent shaping of the hair. The foil is an impregnated hair-tip paper that has been treated with an aqueous preparation that provides superior permanent shaping results. This aqueous preparation contains water, from 20 to 70 percent by weight of at least one lipophilic substance; from 1 to 25 percent by weight of at least one emulsifier and from 0.5 to 15 percent by weight of at least one organic acid. An impregnated foil made from silk or rice paper is also described.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: January 14, 2003
    Assignee: Wella AG
    Inventors: Dieter Schonert, Gerhard Maresch, Gernot Mecks
  • Patent number: 6506506
    Abstract: A fluorescent color conversion film has an organic fluorescent dye, which absorbs light obtained from a light-emitting element in the near ultraviolet to the visible range and emits a visible light of a different wavelength, and a matrix resin, which bears the organic fluorescent dye. The organic dye is an immobilized organic fluorescent dye enclosed by a cyclodextrin derivative represented by general formula (I), wherein n is an integer from 4 to 10, each of R1-R5 are selected independently from the group consisting of a hydrogen atom, a carboxyl group, a hydroxyl group, and a C1-C6 alkyl group. An organic light-emitting device equipped with this fluorescent color conversion film suppresses the decomposition and quenching of the fluorescent dye from attacks by radicals generated from the polymerization initiators in photolithography and/or growth radicals of reactive multifunctional monomers.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: January 14, 2003
    Assignee: Fuji Electronic Co., Ltd.
    Inventors: Yoshimasa Tomiuchi, Yotaro Shiraishi
  • Patent number: 6488997
    Abstract: There is disclosed a kind degradable material and its disposable products, and their manufacturing process. The primary raw material used in the process consists of powdered shell or stalk of crops, urea-formaldehyde resin, and melamine resin. The materials are mixed thoroughly and hot pressed in a single step forming of the products. Oven drying or spray coating is not needed in the process. The products have the following characteristics: simple formula, simple process, low price; and the following properties: with natural color, dense; tough and tensile; and easy for coloring. In addition, they are water, heat and freezing resistant, anti-corrosion, non-poisonous, anti-pollution and biodegradable. They are entirely new environmental protection green products.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: December 3, 2002
    Assignee: Enviro Concept Ltd.
    Inventor: Wang You Tong
  • Patent number: 6489040
    Abstract: A gypsum wall board is disclosed in which at least one of the paper cover sheets is made with neutral size and a small amount of a cationic polyamide resin is added to the stock used to make the cover sheet. The paper cover sheets provide improved resistance to post-manufacturing problems that involve delamination, such as “Roll-up”.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: December 3, 2002
    Assignee: United States Gypsium Company
    Inventors: Evan V. Rohlf, Charles W. Cochran
  • Patent number: 6479164
    Abstract: There is provided a method for preparing composite materials from renewable raw materials wherein natural raw materials, especially in fiber form, comprising starch as binder are molded by adding water in accordance with a predetermined temperature and time profile to form boards and molded articles. The advantages of this method reside in said materials being fully biodegradable and free from harmful substances.
    Type: Grant
    Filed: April 6, 1998
    Date of Patent: November 12, 2002
    Assignee: Biotec Biologische Naturverpackungen GmbH & Co. KG
    Inventors: Jürgen Lörcks, Winfried Pommeranz, Kurt Klenke, Harald Schmidt, Joachim Heuer
  • Patent number: 6478988
    Abstract: The present invention relates to naphthopyrans, particularly 3,3-[substituted]-naphtho[2,1-b]pyrans and 2,2-[substituted]-naphtho[1,2-b]pyrans and particularly to novel substitution on the 3-position and 2-position, respectively, of these naphthopyrans. It has been found that there are classes and types of substitution on the 3-position and 2-position (especially combinations of 3,3-substitution and 2,2-substitution) which are novel. Some of these substitutions provide particularly desirable properties.
    Type: Grant
    Filed: December 31, 1998
    Date of Patent: November 12, 2002
    Assignee: BMC Vision-Ease Lens, Inc.
    Inventors: Frank J. Hughes, J. Thomas Ippoliti
  • Patent number: 6468667
    Abstract: The invention relates to an ophthalmic molding such as a contact lens or any kind of ocular prostheses comprising an organic bulk material having covalently bonded to its surface an acceptor saccharide to which is enzymatically attached one or more further carbohydrates. The ophthalmic moldings of the invention have desirable characteristics regarding, for example, adherence to the substrate, durability, hydrophilicity, wettability or biocompatibility.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: October 22, 2002
    Assignee: Novartis AG
    Inventors: Peter Chabrecek, Dieter Lohmann, Markus Streiff
  • Patent number: 6461728
    Abstract: Pressure sensitive adhesives can be formed using gamma irradiation. One embodiment is a pressure sensitive adhesive which is a polymeric reaction product formed by gamma ray irradiation of an emulsion composition. The emulsion composition includes water; (meth)acrylate monomer material; polar, free-radically polymerizable material that is copolymerizable with the (meth)acrylate monomer material; and at least one emulsifier.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: October 8, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Douglas E. Weiss, Thu-Van T. Tran, Karen J. Leisinger
  • Patent number: 6447895
    Abstract: A thermal stencil sheet for use in a laser stencil printing system comprising a stencil sheet comprising a base layer, a radiation absorbing layer, and a thermal film overlying the radiation absorbing layer. The base layer comprises a porous fibrous material which is saturatable with liquid.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: September 10, 2002
    Assignee: Aprion Digital Ltd.
    Inventors: Yosef Kamir, Murray Figov, Narda Ben-Horin, Lior Lifshitz, Moshe Frenkel
  • Publication number: 20020123014
    Abstract: A photographic element comprising a polyester support; an antistatic layer; and a transparent magnetic layer comprising a cellulose binder, ferromagnetic particles and a blocked isocyanate.
    Type: Application
    Filed: May 14, 2001
    Publication date: September 5, 2002
    Inventors: Brian K. Brady, Charles L. Bauer, Dennis J. Eichorst
  • Patent number: 6440535
    Abstract: A recording sheet is disclosed comprising a substrate, having on at least one side thereon, an ink absorbent layer, said ink absorbent layer comprising alumina sol, at least one gelling agent, at least one cyclodextrin compound, and optionally, at least one binder. The ink absorbent layer may further comprise at least one viscosity, modifying compound and at least one gloss enhancing compound. The recording sheet of the present invention provides enhanced lightfastness properties.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: August 27, 2002
    Assignee: Hewlett-Packard Company
    Inventors: Kai-Kong Iu, Gary W. Byers
  • Patent number: 6428902
    Abstract: Pressure impregnation methods for preserving wood. The impregnant combines a wood preservative with a wax-surfactant-water emulsion. A cationic surfactant component made up of two different surfactants is preferred.
    Type: Grant
    Filed: August 14, 1995
    Date of Patent: August 6, 2002
    Assignee: Chemco Development LLC
    Inventors: Fred J. Amundson, Frank S. Tracino
  • Patent number: 6428903
    Abstract: There are disclosed electronic or microelectronic components having on at least a portion of a surface thereof a coating containing hyaluronic acid or a derivative thereof wherein said coating has the ability to inhibit adhesion of microorganisms and formation of biofilms. Also disclosed are methods of inhibiting corrosion and changes in electrical conductivity by inhibiting biofilm formation on electronic or microelectronic components by applying a coating containing hyaluronic acid or a derivative thereof directly onto the surface of said components.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: August 6, 2002
    Assignee: Fidia Advanced Biopolymers S.r.L.
    Inventor: Lanfranco Callegaro
  • Publication number: 20020096291
    Abstract: A binder is applied to particles which are then combined with fibers to bind the particles to the fibers. The particles have functional sites for forming a hydrogen bond or a coordinate covalent bond. The fibers have hydrogen bonding functional sites. The binder comprises binder molecules, the binder molecules having at least one functional group that is capable of forming a hydrogen bond or a coordinate covalent bond with the particles, and at least one functional group that is capable of forming a hydrogen bond with the fibers. A substantial portion of the particles that are adhered to the fibers may be adhered in particulate form by hydrogen bonds or coordinate covalent bonds to the binder, and the binder in turn may be adhered to the fibers by hydrogen bonds. Fibers containing particles bound by this method are easily densified.
    Type: Application
    Filed: May 3, 2001
    Publication date: July 25, 2002
    Applicant: Weyerhaeuser Company
    Inventors: Michael R. Hansen, Richard H. Young
  • Publication number: 20020096292
    Abstract: A binder is applied to particles which are then combined with fibers to bind the particles to the fibers. The particles have functional sites for forming a hydrogen bond or a coordinate covalent bond. The fibers have hydrogen bonding functional sites. The binder comprises binder molecules, the binder molecules having at least one functional group that is capable of forming a hydrogen bond or a coordinate covalent bond with the particles, and at least one functional group that is capable of forming a hydrogen bond with the fibers. A substantial portion of the particles that are adhered to the fibers may be adhered in particulate form by hydrogen bonds or coordinate covalent bonds to the binder, and the binder in turn may be adhered to the fibers by hydrogen bonds. Fibers containing particles bound by this method are easily densified.
    Type: Application
    Filed: May 4, 2001
    Publication date: July 25, 2002
    Applicant: Weyerhaeuser Company
    Inventors: Michael R. Hansen, Richard H. Young
  • Patent number: 6417119
    Abstract: A fabric having plant material adhered between layers of silk or hand-made paper. The silk or paper layers are translucent to allow the fabric to have the appearance of plant material. The fabric is manufactured by soaking dry plant material in water, pressing and drying the plant material to flatten it, adhering bottom and top layers of silk or paper to the plant material, and applying a stiffening agent to the fabric. Articles of various shapes may be formed by shaping the fabric into a predetermined shape prior to the step of applying the stiffening material.
    Type: Grant
    Filed: June 28, 1999
    Date of Patent: July 9, 2002
    Inventor: Sang Roberson
  • Patent number: 6410108
    Abstract: A degradable container is disclosed as containing 60 wt % to 70 wt % of a plant fiber, from 10 wt % to 30 wt % of an adhesive and from 0.1 wt % to 5 wt % of a demoulding agent, in which the adhesive is a modified urea-formaldehyde resin. A method of forming a degradable container is also disclosed as including the steps of (a) grinding a plant fiber to a size smaller than a pre-determined size; (b) nixing grounded plant fiber obtained under step (a) with a demoulding agent to form a premixed material; (c) mixing said premixed material with an adhesive into a powder form; (d) press-moulding said powder obtained under step (c) a first time under a pressure of 5-80 MPa; and (e) press-moulding said powder a second time under a pressure of 1.5-16 MPa into said container.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: June 25, 2002
    Assignee: CS Environmental Technology Ltd. Hong Kong
    Inventors: Qiang Liu, Jun Wang, Zhengchu Bin, Chuxun Lu, Xiangshan Ding, Kam Pui Tang
  • Patent number: 6410158
    Abstract: A coated paper product having high gloss and brightness is prepared by a process wherein a paper substrate is coated on at least one side with an aqueous coating formulation comprising an effective amount of a plastic pigment, and finished in a supercalender device containing heated rolls to produce a surface which is comparable to a cast coated surface.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: June 25, 2002
    Assignee: Westvaco Corporation
    Inventors: Dean R. Johnson, Eric D. Johnson, James E. Shultz
  • Publication number: 20020061413
    Abstract: The invention relates to a packaging laminate having one or more gas barrier layers of starch or starch derivative providing an oxygen gas barrier property of 50, preferably 30 cm3/m2 at 24 h, 1 atm (23° C., 50% RH) or better, said gas barrier layer having a dry coating weight no more than 7 g/m2. The invention also relates to a method for producing such a packaging laminate and to packaging containers manufactured from the packaging laminate.
    Type: Application
    Filed: March 10, 1999
    Publication date: May 23, 2002
    Inventors: MATS BENTMAR, MIKAEL BERLIN
  • Patent number: 6391440
    Abstract: A recording medium comprises one or more of the compounds represented by General Formula (1) and/or General Formula (2): wherein R is any of a hydrogen atom, a substituted or unsubstituted alkokyl group, a substituted or unsubstituted alkyl group, and a substituted or unsubstituted aryl group; wherein R1 is an alkyl group of 1 to 20 carbons, and R2, R3, R4, and R5 are respectively independently an alkyl group of 1 to 3 carbons.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: May 21, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hitoshi Yoshino, Kenji Shinjo
  • Publication number: 20020055118
    Abstract: A method of preparing an object containing DNA, the method comprising the steps of: obtaining a sample including DNA from a donor; extracting DNA from the sample; amplifying the extracted DNA; introducing a solution of the amplified DNA into a cavity within the object through an opening of the cavity, and closing the opening of the cavity, wherein the object is with a defined shape, or mixing a solution of the amplified DNA with the object where the object is amorphous, and a method for producing an object containing DNA, comprising the steps of: image-scanning a polyacrylamide gel film containing electrophoresed DNA bands; offset-printing on an object having a fixed shape using the scanned image data; and applying a DNA solution onto the DNA band image which has been offset-printed.
    Type: Application
    Filed: November 13, 2001
    Publication date: May 9, 2002
    Inventor: Yong-Bin Eym
  • Patent number: 6376034
    Abstract: An absorbent composition of matter includes a non-crosslinked gel forming polymer and at least one clay and preferably including a trivalent cation. The absorbency of the composition exceeds the sum of absorbencies of the components of the blend. The gel formed as a result of absorbency of fluid is non-slimy and has a high gel strength. The composition can be used with food products when made with all food safe ingredients. An absorbent article incorporating the absorbent material can be used for storage of food products.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: April 23, 2002
    Inventor: William M. Brander
  • Patent number: 6372360
    Abstract: Fire retardant cellulosic material comprises from 0.4 to 2.0% by weight of tin and from 0.4 to 8.0% by weight of boron based on the weight of the cellulosic material. The fire retardant material is prepared in a two-stage or a one-stage process. The two-stage process comprises impregnation of the material with an alkaline solution of an alkali metal stannate or stannite, followed by impregnation with an aqueous solution of boric acid and drying. The one-stage process comprises impregnation of the material with a stable aqueous colloidal suspension of hydrous tin oxide stabilized with an alkali metal salt of boric acid having a pH in the range of from 4 to 8, followed by drying.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: April 16, 2002
    Assignee: ITRI Ltd.
    Inventors: Stephen John Blunden, Paul Andrew Cusack, Anthony James Wallace
  • Patent number: 6362330
    Abstract: The present invention relates to novel thermoplastic materials based on polysaccharide ethers which are simultaneously substituted by carboxylic acid ester groups and carbamate groups, together with mixtures of such derivatives with low molecular weight aliphatic urea derivatives.
    Type: Grant
    Filed: November 1, 1999
    Date of Patent: March 26, 2002
    Assignee: Wolff Wolsrode AG
    Inventors: Joachim Simon, Hanns-Peter Müller, Dirk Jacques Dijkstra, Gunter Weber
  • Patent number: 6355405
    Abstract: Multilayer articles (including imaging elements) have improved adhesion between a polymeric support and film-forming polymer-containing layers disposed thereon. This improved adhesion is provided by including in the adhesion-promoting layer next to the support two or more polymers specific properties. At least one of the polymers adheres the layer to the support, and at least one other polymer is compatible or of the same class as the film-forming polymer in the upper layer. This adhesion-promoting layer can be provided as a very thin “carrier” layer during coating operations so that desired sensitometric effects and functional properties are obtained. Preferred imaging elements having such adhesion-promoting layers are photothermographic films.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: March 12, 2002
    Assignee: Eastman Kodak Company
    Inventors: Thomas J. Ludemann, Gary E. LaBelle, Thomas C. Geisler, Jerry L. Warren, Anne E. Crump, Aparna V. Bhave
  • Patent number: 6352786
    Abstract: A process for preparing a fire-resistant cellulosic material which comprises contacting cellulosic material with an aqueous solution of aluminum phosphate wherein the molar ratio of aluminum to phosphorous is less than 1:1, optionally containing a metal oxide, to form an initially treated cellulosic material containing aluminum phosphate and an increased amount of water, removing water from and curing said initially treated cellulosic material to form a fire-resistant cellulosic material. The cellulosic material is preferably wood and the wood is preferably a shingle or plywood.
    Type: Grant
    Filed: January 18, 2001
    Date of Patent: March 5, 2002
    Assignee: Astaris LLC
    Inventors: Rose P. Arshinova, Edward J. Griffith
  • Publication number: 20020022116
    Abstract: A recording sheet is disclosed comprising a substrate, having on at least one side thereon, and an ink absorbent layer, said ink absorbent layer comprising alumina sol, at least one gelling agent, at least one cyclodextrin compound, and optionally, at least one binder. The ink absorbent layer may further comprise at least one viscosity modifying compound and at least one gloss enhancing compound. The recording sheet of the present invention provides enhanced lightfastness properties.
    Type: Application
    Filed: February 23, 1998
    Publication date: February 21, 2002
    Inventors: KAI-KONG IU, GARY W. BYERS
  • Publication number: 20020011522
    Abstract: A method and apparatus for manifesting the time-temperature history of a perishable object includes the providing the object with a substrate having layer that is comprised of a volatile component and at least one other component, where the volatile component has an evaporation rate related to time and temperature. The teachings herein include allowing the volatile component to evaporate, causing a color change with the remaining component that reflects a time-temperature history of the object. The other component may include a lactone dye or crystal violet lactone, The layer may include poly-p-(hydroxystyrene), ethanol, crystal violet lactone and N-methyl pyrrolidinone, or may include poly-p-(hydroxystyrene), ethanol, crystal violet lactone, ammonia, N-methyl pyrrolidinone, and formaldehyde. A barrier may be provided to control the removal of the volatile component, and at least one chromophore may be provided to bias the layer so as to reduce an amount of time required before the color change is detectable.
    Type: Application
    Filed: May 18, 2001
    Publication date: January 31, 2002
    Inventor: Nabil M. Lawandy
  • Patent number: 6340516
    Abstract: The present invention relates to ink jet recording materials and method for making the same. The material has a gel layer formed on a base material to improve the optical density of the material and improve the printing quality of ink of pigment type. The method for forming the gel layer is to coat a first ink-receptive layer composed of high valance metallic halide, such as calcium chloride (CaCl2) or magnesium chloride (MgCl2), on the base layer, then a second ink-receptive layer composed of alginate, such as sodium alginate, potassium alginate or other compounds of alginic acid, on the first ink-receptive layer. The second and the first ink-receptive layers will react to form a gel layer during coating for absorbing ink dots and improving print quality.
    Type: Grant
    Filed: January 30, 1999
    Date of Patent: January 22, 2002
    Assignee: Industrial Technology Research Institute
    Inventors: Shu-Chu Shih, Charng-Shing Lu, Jing-Pin Pan
  • Patent number: 6340411
    Abstract: A densifying agent is applied to fibers in order to improve the densification properties of the fibers. The fibers have hydrogen bonding functional groups. The densifying agent are denser than the fibers to which the densifying agent is applied. The densifying agent can be organic or inorganic. The improved densification properties are observed without the presence of particles bound to the fibers or in the presence of particles that are not bound to the fibers. Softening agents can also be applied to the fibers in order to soften the fibers and articles including such fibers. Softening agents may be selected from the group of densifying agents.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: January 22, 2002
    Assignee: Weyerhaeuser Company
    Inventors: Michael R. Hansen, Richard H. Young, Sr.
  • Publication number: 20020006485
    Abstract: A multi-layer, water-soluble film, a method of producing such film, and a method of packaging a chemical in such film are provided. The multi-layer film comprises a continuous layer of water-soluble material suitable for forming an outer layer of a bag, and a barrier coating affixed to discrete areas of the continuous layer, leaving a plurality of uncoated intervals occurring at repeating distances on the continuous layer. The continuous layer is of sufficient thickness and strength to provide sufficient structural integrity for use as a bag. The barrier coating, suitable for forming the inner surface of a bag, lacks sufficient structural integrity to contain the contents of the bag once the outer layer is substantially dissolved.
    Type: Application
    Filed: April 27, 1999
    Publication date: January 17, 2002
    Inventors: P. SCOTT BENING, ANDREW P. VERRALL, CHRISTIAN JOUFFREAU
  • Patent number: 6337139
    Abstract: The invention relates to a process for applying a multicoat finish to a substrate surface, comprising the following steps: (1): applying an aqueous basecoat A to the substrate surface, (2): forming a polymer film from the aqueous basecoat A applied in stage (1), (3): applying an aqueous transparent topcoat B to the basecoat film obtained in stage (2), and finally (4); baking the basecoat film and the topcoat film together, wherein the basecoat A comprises at least one hydroxyl-containing binder in aqueous solution or dispersion and a stable aqueous dispersion, prepared with a hydroxyl-containing emulsifier, of a hydrophobicized amino resin, and to substrates coated in accordance with the process of the invention.
    Type: Grant
    Filed: January 17, 2000
    Date of Patent: January 8, 2002
    Assignee: BASF Coatings AG
    Inventor: Ekkehard Sapper
  • Patent number: 6322899
    Abstract: A plastic laminate with two or more plastic layers, at least one of which is polyhydroxyalkanoate, such as hydroxybutyrate/hydroxyvalerate copolymer. Next to the polyhydroxyalkanoate layer and attached to it is a layer of biodegradable polyester amide.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: November 27, 2001
    Assignee: UPM-Kymmene Oyj
    Inventors: Hannu Karhuketo, Heikki Korpela
  • Patent number: 6320042
    Abstract: A cellulose triacetate film characterized in being comprised of cellulose triacetate which is prepared by employing cotton liter as the raw material, having a value of weight average molecular weight Mw/number average molecular weight Mn of 3.5 to 4.5, or being comprised of cellulose triacetate which is prepared by employing wood pulp as the raw material, having a value of weight average molecular weight Mw/number average molecular weight Mn of 4.0 to 5.0.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: November 20, 2001
    Assignee: Konica Corporation
    Inventors: Isamu Michihata, Masahito Takada, Kunio Shimizu, Koichi Nagayasu, Noriki Tachibana
  • Patent number: 6319599
    Abstract: An apparatus and method for metabolic cooling and insulation of a user in a cold environment. In its preferred embodiment the apparatus is a highly flexible composite material having a flexible matrix containing a phase change thermal storage material. The apparatus can be made to heat or cool the body or to act as a thermal buffer to protect the wearer from changing environmental conditions. The apparatus may also include an external thermal insulation layer and/or an internal thermal control layer to regulate the rate of heat exchange between the composite and the skin of the wearer.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: November 20, 2001
    Inventor: Theresa M. Buckley
  • Patent number: 6316613
    Abstract: The separation of enantiomeric pairs of compounds by capillary electrophoresis using highly sulfated &agr;-, &bgr;-, and &ggr;-cyclodextrins as chiral selectors is described herein. These charged cyclodextrins have a higher degree of sulfation and narrower heterogeneity than previous cyclodextrin derivatives. CE analyses using highly sulfated cyclodextrins produce improved resolution of a wide variety of chiral drugs, particulaly neutral compounds and amines. The highly sulfated &agr;-,&bgr;-, and &ggr;-cyclodextrins produce separations which complement each other to further expand the number of neutral and basic drugs that can be resolved by capillary electrophorsis.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: November 13, 2001
    Assignee: Beckman Coulter, Inc.
    Inventors: Fu-Tai A. Chen, Ramon A. Evangelista, Gene G. Y. Shen, Chan S. Oh
  • Patent number: 6306568
    Abstract: A photographic element comprising a polyester support; an antistatic layer; and a transparent magnetic layer comprising a cellulose binder, ferromagnetic particles and a blocked isocyanate.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: October 23, 2001
    Assignee: Eastman Kodak Company
    Inventors: Brian K. Brady, Charles L. Bauer, Dennis J. Eichorst
  • Patent number: 6296931
    Abstract: The invention provides a recording sheet including an additive, referred to herein as a compatibilizer, to improve the quality of images formed by toner powder development of electrostatic charge patterns. Recording sheets, carrying images produced by toner powder transfer and fusion on a receptor surface, according to the present invention, exhibit improved light transmission and reduced light scattering. Specifically, a transparent sheet is provided having a toner-receptive coating containing about 4 wt. % to about 25 wt % of a compatibilizer on at least one surface, wherein the coating has a low density yellow Q factor value at least 2 less than an identical coating without the compatibilizer.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: October 2, 2001
    Assignee: 3M Innovatice Properties Company
    Inventors: Jamshid Azizi, Joseph C. Carls, Shigeaki Dohgoshi, Koji Kamiyama, Andrew C. Lottes
  • Publication number: 20010024727
    Abstract: An apparatus and method for continuously forming composites comprising filler materials and thermoactive materials, particularly waste cellulosic materials and waste thermoplastics, are described. One embodiment of the apparatus includes either a batchwise or continuous mixer, such as a cyclone, for forming mixtures comprising filler and thermoactive material. The mixtures are conveyed to a continuous consolidation apparatus. Alternatively, the mixtures may be densified in a densifying apparatus before entering the consolidation apparatus. The consolidation apparatus includes a hot-gas distribution system having plural paired gas cells, such as rollers or hoods, for applying hot air to the charge. A first cell of each pair applies gas to the mixture. The second cell of each pair operates at a pressure less than that of the first cell, thereby creating a pressure differential across the charge.
    Type: Application
    Filed: March 8, 2001
    Publication date: September 27, 2001
    Applicant: Boise Cascade Corporation
    Inventors: Paul Dubelsten, Lorence E. Knowles, Erik J. Van Kleek
  • Patent number: 6291590
    Abstract: Extrusion coating structure in which at least one layer is made of a polymer composition comprising a multimodal ethylene polymer, which contains from 80 to 100% by weight of ethylene repeating u nits and from 0 to 20% by weight of C3-C10 alpha-olefin repeating units, has a density of between 0.920 and 0.960 kg/m3, and which is a blend of at least two different ethylene polymers.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: September 18, 2001
    Assignee: Borealis Technology Oy
    Inventors: Markku Sainio, Erkki Laiho, Martti Vähälä, Hannu Salminen
  • Patent number: 6284359
    Abstract: A biodegradable, water dispersible shaped core product useful in winding or rolling and storage of paper goods is provided by extruding starch which has a particle size of 800 to 1200 microns into an expanded, closed cell starch product.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: September 4, 2001
    Assignee: National Starch and Chemical Company Investment Holding Corporation
    Inventors: Richard R. Rose, Beth C. Tormey, Paul A. Altieri
  • Patent number: 6277498
    Abstract: An ink jet recording material having substantially no tackiness and capable of receiving thereon ink images having high resistance to cracking and blotting has an ink receiving layer formed on a support and including (A) hydroxypropylmethyl cellulose having a 2% aqueous solution viscosity of 200 cP at 20° C., and optionally (B) a N-vinyl pyrrolidon polymer and (C) a cationic resin.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: August 21, 2001
    Assignee: OJI Paper Co., Ltd.
    Inventors: Eriko Endo, Koiti Yasui, Hiroyuki Nemoto, Shunichiro Mukoyoshi
  • Patent number: 6274223
    Abstract: A magnetic recording medium incorporating a backcoat layer which exhibits excellent movement characteristics, the magnetic recording medium having a non-magnetic support member; a magnetic layer formed on either surface of the non-magnetic support member and mainly composed of magnetic powder and a binder; and a backcoat layer formed on another surface of the non-magnetic support member and structured such that non-magnetic powder is dispersed in a binder, wherein the backcoat layer contains the non-magnetic powder composed of carbon black and inorganic powder having Moh's hardness of 6 to 9 at a ratio of 90:10 to 85:15, the contained binder is made of phenoxy resin, polyurethane resin and nitrocellulose, the contained carbon black consists of carbon black having an average primary particle size of 25 nm to 55 nm and carbon black having an average primary particle size of 280 nm to 350 nm and the contained inorganic powder consists of inorganic powder having an average primary particle size of 260 nm to
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: August 14, 2001
    Assignee: Sony Corporation
    Inventor: Muneharu Odaira
  • Patent number: 6268042
    Abstract: A high strength, low density fiber board panel for use in the furniture industry is provided, including mineral wool, a lightweight aggregate material, cellulosic fiber, a binding agent and gypsum. The mineral wool makes up approximately 0% to 33%, the lightweight aggregate material approximately 25% to 41%, the cellulosic fiber approximately 20% to 35%, the binding agent approximately 5% to 9%, and the gypsum approximately 0% to 23%, of the dry solids weight of the panel.
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: July 31, 2001
    Assignee: United States Gypsum Company
    Inventor: Mirza A. Baig
  • Patent number: 6238804
    Abstract: The present invention is directed to an ink jet recording medium, and more particularly to an ink jet recording medium prepared with an ink absorbent coating that is used to receive aqueous dye-based ink. The ink absorbent coating comprises a blend of at least one cellulose ether and stilbene optical brightener. The medium has a &Dgr;E value of no greater than about 5, as measured according to CIE 1976 (L*a*b*) uniform color scale method, after the medium has been imaged with a magenta color-image.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: May 29, 2001
    Assignee: Arkwright Incorporated
    Inventors: David Atherton, Odette Glass
  • Patent number: 6214452
    Abstract: The invention relates to a biodegradable foil made from a low salt content hydroxypropylether solution of a starch containing at least 70% amylose having a median molecular weight from between about 105 to about 2×107, a polydispersity from about 2 to about 8, a degree of substitution from about 0.1 to about 0.5, and a substantially equal substituent distribution between C2/C3 and C6 bond sites in a glucose molecule and a density of about 1.3 g/cm3. The foil is of a thickness between about 20 &mgr;m and 200 &mgr;m and has a light transmissivity, at light of a wavelength of about 560 nm of in excess of 80%. The foil is especially suitable for printing, writing and deep drawing as well as for projection slides.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: April 10, 2001
    Assignee: Gesellschaft fuer Spezialfolien-Entwicklung m.b.H.
    Inventors: Rotraut Albrecht, Sivio Boettcher, Gernod Haerter, Peter Pawlak, Heinrich Erich Schwartze, Heike Zuleg
  • Patent number: 6214459
    Abstract: An inkable sheet comprises a substrate having on at least one surface thereof an ink absorbent layer comprising a cellulose material and an acid functional resin which is insoluble in water of neutral or acidic pH at room temperature. The acid functional resin may comprise an acid functional polyurethane resin or an acid functional acrylic resin such as a polyacrylate/acrylic acid copolymer. The ink absorbent layer preferably further comprises a weak organic acid or salt thereof and/or at least one crosslinking agent.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: April 10, 2001
    Assignee: Imperial Chemical Industries PLC
    Inventors: Nicholas C. Beck, Gary W. Morrison
  • Patent number: 6214907
    Abstract: A biologically degradable polymer mixture is proposed which consists essentially of starch and at least one hydrophobic polymer. The hydrophobic polymer is in this connection at least substantially biologically degradable and thermoplastically processable and the mixture with the starch comprising a polymer phase mediator or a macromolecular dispersing agent so that the starch is present in the mixture as disperse phase with the hydrophobic polymer as continuous phase, and the phase mediator or the dispersing agent is responsible for the molecular coupling of the two phases. As starch there is preferably used thermoplastic starch which has been prepared substantially with the exclusion of water by means of sorbitol or glycerol. The production of the biologically degradable polymer mixture is also carried out substantially with the exclusion of water.
    Type: Grant
    Filed: September 16, 1998
    Date of Patent: April 10, 2001
    Assignee: Bio-Tec Biologische Naturverpackungen GmbH & Co. KG
    Inventor: Ivan Tomka