Next To Cellulosic Patents (Class 428/479.3)
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Patent number: 11884864Abstract: An object is to provide a method for producing a liquid-crystal polyester processed product, the method improving the adhesion of a liquid-crystal polyester resin, which is a poorly adhesive resin. As a solution, a method for producing a liquid-crystal polyester processed product, including a step (I) of performing an oxidation treatment on a surface of a liquid-crystal polyester resin formed body including a repeating unit represented by general formula (1), is provided.Type: GrantFiled: March 3, 2020Date of Patent: January 30, 2024Assignee: HONSHU CHEMICAL INDUSTRY CO., LTD.Inventors: Ryota Imai, Katsuhiko Kaneshige
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Patent number: 11534719Abstract: A serial filtration system for liquid purification includes a preliminary-stage reverse-osmosis (RO) module and a first-stage, high-permeability, reverse-osmosis (HiRO) module. Both modules include (a) a chamber including an inlet, a retentate outlet, and a permeate outlet, and (b) at least one membrane separating the chamber into a retentate side on an upstream side of the membrane and a permeate side on a downstream side of the membrane. The membrane in the preliminary stage is an RO membrane, while the membrane in the first stage is an oxidized membrane. The first-stage inlet is in fluid communication with the preliminary-stage, retentate outlet; and the oxidized membrane in the first stage, comprises an oxidized polyamide active layer coated on a porous support, wherein the oxidized polyamide active layer has an atomic oxygen/nitrogen ratio of at least 1.5.Type: GrantFiled: July 2, 2021Date of Patent: December 27, 2022Assignee: Gradiant CorporationInventors: Omkar Lokare, Richard Stover
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Patent number: 9212494Abstract: In a method for manufacturing floor panels that have at least a substrate and a top layer provided on the substrate, the top layer including a thermoplastic layer that is translucent or transparent, the method may involve providing the top layer, including the thermoplastic layer, on the substrate. The method may also involve heating at least the thermoplastic layer, and structuring the thermoplastic layer using a mechanical press element.Type: GrantFiled: June 18, 2014Date of Patent: December 15, 2015Assignee: FLOORING INDUSTRIES LIMITED, SARLInventors: Laurent Meersseman, Martin Segaert, Bernard Thiers, Benjamin Clement, Christophe Maesen
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Publication number: 20150093478Abstract: An absorbent pad that contains activated carbon to reduce confinement odor in a vacuum-packaged food product is provided. An embodiment of absorbent pad contains activated carbon and an antimicrobial agent that further reduces confinement odor by two mechanisms of action: reducing bacterial counts in the liquid purge that cause breakdown of carbohydrates and proteins in food products; and trapping of confinement odor-causing breakdown products by the activated carbon. The absorbent body in the absorbent pad actively draws in liquid purge and dissolved volatile breakdown products in the vacuum package that produce confinement odor, which produces greater and more rapid contact of odor-causing compounds with the activated carbon.Type: ApplicationFiled: September 26, 2014Publication date: April 2, 2015Inventors: Sayandro Versteylen, Brett N. Stoll, Martin H. Michaels
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Publication number: 20150027954Abstract: The invention provides systems and methods for removing a target oil from an aqueous fluid stream using a capture medium. In embodiments, the capture medium can comprise an anchor substrate and a modifier technology supported on the anchor substrate, where the modifier technology complexes with the oil to form a removable complex.Type: ApplicationFiled: July 10, 2014Publication date: January 29, 2015Inventors: David S. Soane, William Ware, JR., Robert P. Mahoney, Ian Slattery
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Patent number: 8557881Abstract: The invention relates to a wood composite material and to a method for making it. In accordance with the invention, the wood composite material is formed of adhesive laminate waste comprising adhesive material, glue and release material and having been arranged into chaff, the chaff being arranged into the wood composite material.Type: GrantFiled: September 25, 2007Date of Patent: October 15, 2013Assignee: UPM-Kymmene OyjInventors: Liisa Lehtinen, Markku Koivisto, Jari Nisula
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Patent number: 8551614Abstract: One embodiment provides a wrapping, comprising a first layer of synthetic polymeric material; a second layer of synthetic polymeric material; and a layer of natural material sandwiched between at least a portion of the first and second layers; wherein the first and second layers are wider than the layer of natural material and extend beyond opposing ends of the layer of natural material to form tabs, the tabs comprising said first and second layers sandwiched together without the layer of natural material therebetween. Methods of making and using are disclosed.Type: GrantFiled: December 29, 2010Date of Patent: October 8, 2013Assignee: International Paper CompanyInventors: Haidar Canfora Zein, Suzana Yuri Kaneco, Francisco Jose Carlini Kohn
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Publication number: 20130260143Abstract: The invention makes it possible to use a coating liquid of a fine cellulose fiber (a natural material) and to form a coated layer which can be used as a various-functions layer such as a gas barrier layer and water vapor barrier layer etc. by achieving good adhesiveness and coatability of the coating liquid, and as a result, provides a laminated material in which temporal degradation of a substrate and the fine cellulose fiber layer is prevented. The laminated body includes a substrate, an anchor layer arranged on a surface the substrate, and a fine cellulose fiber layer containing a fine cellulose fiber having a carboxy group, wherein the anchor layer contains at least one resin having a carboxy group, sulfonate group, amino group or hydroxyl group.Type: ApplicationFiled: May 23, 2013Publication date: October 3, 2013Inventors: Yumiko Oomori, Kazuko Imai, Mitsuharu Kimura, Kosuke Shimizu
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Publication number: 20130171669Abstract: A modified porous membrane comprising a polymeric hydrophilic coating bonded to a porous membrane is described. The polymeric hydrophilic coatings grafted to the porous membranes comprise, for example, a PEG moiety such as a PEGMA, a PEGDA, or a TMPET, wherein the polymeric hydrophilic coating on the porous membrane decreases non-specific binding of unwanted material to the porous membrane and increases the signal to noise ratio in immunoassays, in vitro diagnostic tests, and point of care tests. Methods of making these modified porous membranes are also disclosed.Type: ApplicationFiled: December 30, 2011Publication date: July 4, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Bing Li, David Roger Moore
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Publication number: 20130065068Abstract: A tape for use in automated tape laying machines that includes a multi-layer substrate composed of a plastic layer that includes at least one plastic film having an outer film surface and an inner film surface. The plastic film is adhered to a fibrous layer so that the inner surface of the fibrous layer is bonded to the inner film surface. An uncured composite material layer composed of a fibrous reinforcement and an uncured resin matrix is releasably adhered to either the plastic layer surface or the outer fiber layer surface to provide a tape suitable for use in an automatic tape layer.Type: ApplicationFiled: November 5, 2012Publication date: March 14, 2013Applicant: Hexcel Composites LimitedInventor: Hexcel Composites Limited
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Publication number: 20130030399Abstract: A method of forming a film resistant to blocking including the steps of providing a polymeric film having a first and second surface; applying the anti-blocking agent in a fluid or molten state to at least the first surface of the polymeric film; and gathering the treated film. The anti-blocking agent may be substantially acrylic free.Type: ApplicationFiled: September 27, 2012Publication date: January 31, 2013Applicant: THE PROCTER & GAMBLE COMPANYInventor: The Procter & Gamble Company
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Publication number: 20120276391Abstract: Fire-retardant polyamide cast items including an intumescent coating are described. The case items can have excellent fire-retardant properties and can include at least one fire-retardant system in the polyamide matrix. The items can also have an intumescent coating on at least one surface.Type: ApplicationFiled: October 15, 2010Publication date: November 1, 2012Applicant: RHODIA OPERATIONSInventors: Helene Gallou, Maude Jimenez, Charafeddine Jama, Sophie Duquesne, Rene Delobel, Xavier Couillens, Serge Bourbigot
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Publication number: 20110316660Abstract: A multilayer structure contains (a) a first layer of aramid and cellulose wherein (i) the aramid is present as an meta-aramid in an amount of 0 to 50 weight percent floc and 50 to 100 weight percent fibrid, (ii) the cellulose is present in the form of cellulosic pulp fiber and (iii) the aramid is present in an amount of 16 to 75 weight percent and the cellulose is present in an amount of 25 to 84 weight percent, said percentages on the basis of the aramid and cellulose and (b) a second layer containing cellulosic pulp fiber with the proviso that the second layer does not contain aramid. The multilayer structure is particularly useful in a transformer.Type: ApplicationFiled: June 29, 2010Publication date: December 29, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Mikhail R. Levit, Byoung Sam Kang
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Publication number: 20110212327Abstract: One embodiment provides a wrapping, comprising a first layer of synthetic polymeric material; a second layer of synthetic polymeric material; and a layer of natural material sandwiched between at least a portion of the first and second layers; wherein the first and second layers are wider than the layer of natural material and extend beyond opposing ends of the layer of natural material to form tabs, the tabs comprising said first and second layers sandwiched together without the layer of natural material therebetween. Methods of making and using are disclosed.Type: ApplicationFiled: December 29, 2010Publication date: September 1, 2011Applicant: INTERNATIONAL PAPER DO BRASIL LTDA.Inventors: HAIDAR CANFORA ZEIN, SUZANA YURI KANECO, FRANCISCO JOSE CARLINI KOHN
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Patent number: 7951437Abstract: An inflatable automotive protective cushion and method of formation. The protective cushion includes a multilayer film coating with an adhesive layer and an overlying barrier layer. The adhesive layer is adapted to bond to a textile substrate and the barrier layer is adapted to block air permeability.Type: GrantFiled: September 22, 2006Date of Patent: May 31, 2011Assignee: Milliken & CompanyInventors: Ramesh Keshavaraj, Dany F. Michiels
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Publication number: 20100155288Abstract: A laminate material includes a substrate layer having first and second opposed sides, a first plastic layer located on the first side of the substrate layer, a second plastic layer located on the second side of the substrate layer, and at least one intermediate layer located on the first side and/or the second side of the substrate layer, between the first plastic layer and/or the second plastic layer and the substrate layer. The intermediate layer may be a single layer or multiple layers, and includes at least one of a metallized layer, a printing ink, a pigment, a toner, and/or a lacquer layer. The intermediate layer may further include at least one of a layer of primer and a layer of adhesive.Type: ApplicationFiled: December 15, 2009Publication date: June 24, 2010Applicant: ALCAN TECHNOLOGY & MANAGEMENT LTDInventors: Tim Harper, Joseph Wittemer
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Publication number: 20100015430Abstract: An article having reversible thermal regulation properties comprises a substrate and a functional polymeric phase change material having a heat carrying capacity. The article is further characterized by a chemical function having moisture adsorbing properties that increase the heat carrying capacity.Type: ApplicationFiled: June 17, 2009Publication date: January 21, 2010Applicant: OUTLAST TECHNOLOGIES, INC.Inventors: Mark Hartmann, Aharon Eyal
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Publication number: 20090298372Abstract: A multilayer structure comprises a surface layer, a substrate, and optionally additional layers wherein the surface layer comprises or is produced from a blend comprising an ionomer and a polyamide; the ionomer is or must be derived from at least three repeat units derived from ethylene, an ?,?-unsaturated C3-C8 carboxylic acid, and a dicarboxylic acid or its derivative; and the dicarboxylic acid or its derivative is maleic acid, fumaric acid, itaconic acid, maleic anhydride, fumaric anhydride, itaconic anhydride, maleic acid monoester, fumaric acid monoester, itaconic acid monoester, or combinations of two or more thereof.Type: ApplicationFiled: June 15, 2009Publication date: December 3, 2009Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: RICHARD T. CHOU, KARLHEINZ HAUSMANN
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Publication number: 20090233074Abstract: Disclosed herein is a multilayer film comprising two or more layers of polyelectrolytes, wherein adjacent layers comprise oppositely charged polyelectrolytes. A first layer polyelectrolye comprises a composite polypeptide comprising one or more surface adsorption regions covalently linked to one or more functional regions forming a single polypeptide chain. The surface adsorption regions comprise one or more amino acid sequence motifs consisting of 5 to 15 amino acid residues. The one or more functional regions comprise 3 to about 250 amino acid residues.Type: ApplicationFiled: April 9, 2009Publication date: September 17, 2009Applicants: FoundationInventor: Donald T. Haynie
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Publication number: 20090155595Abstract: A polymeric composite including (1) a substrate formed of a moldable polymer; (2) a first polymeric layer containing a base polymer, the first layer adhering to a surface of the substrate by physical entrapment of at least some molecules of the base polymer in the substrate; and (3) a second polymeric layer containing a hydrophilic polymer, the second layer adhering to a surface of the first layer by physical entrapment of at least some molecules of the hydrophilic polymer in the first layer. Also disclosed is a device including such a composite for delivering an intraocular lens.Type: ApplicationFiled: December 12, 2007Publication date: June 18, 2009Applicant: eMembrane Inc.Inventor: William Lee
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Patent number: 7303817Abstract: A dental filling material comprising an inner core and outer layer of material disposed and surrounding the inner core, both the inner core and outer layer of material each containing a thermoplastic polymer. The thermoplastic polymer may be biodegradable. A bioactive substance may also be included in the filling material. The thermoplastic polymer acts as a matrix for the bioactive substance. The composition may include other polymeric resins, fillers, plasticizers and other additives typically used in dental materials. The filling material is used for the filing of root canals.Type: GrantFiled: August 6, 2004Date of Patent: December 4, 2007Inventor: Weitao Jia
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Patent number: 7192640Abstract: A packaging laminate comprising a paperboard substrate for providing a base layer, a tear-resistant polymer layer applied to said substrate, and a heat seal polymer layer applied to said tear-resistant polymer. This laminate structure is particularly useful for blister pack packaging.Type: GrantFiled: January 31, 2003Date of Patent: March 20, 2007Assignee: International Paper CompanyInventors: Victor P. Holbert, David Reed
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Patent number: 6913831Abstract: The object of the present invention is to provide a coating material for recycling a thermoplastic resin mold, wherein said coating material is coated on the surface of said thermoplastic resin mold and said thermoplastic resin mold, discarded, can be recycled without removing the coating film of said coating material. To attain said object, a thermoplastic resin mold is coated with a coating material containing a thermoplastic resin and non-yellowing type cellulose derivative as vehicles, said thermoplastic resin having compatibility with the thermoplastic resin of said thermoplastic resin mold. Said thermoplastic resin mold, surface coated, used, and discarded, can be recycled without removing the coating film of said coating material, and further the resulting recycled thermoplastic resin mold does not degrade.Type: GrantFiled: September 16, 2003Date of Patent: July 5, 2005Assignees: Suzuka Fuji Xerox, Co., Ltd., Tohpe CorporationInventor: Yasuhiro Suzuki
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Patent number: 6887538Abstract: A barrier laminate useful for the formation of orange juice and citrus beverage cartons is provided. The laminate provides a skin coat of a MDPE which provides a barrier to water vapor transmission through the laminate. The reduced water vapor flow decreases the bulge rate of the resulting carton.Type: GrantFiled: November 29, 2000Date of Patent: May 3, 2005Assignee: BRPP, LLCInventors: Alan W. Denney, Linnea Brady Keen
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Patent number: 6844055Abstract: Prepare a foam structure that includes hollow coalesced foam strands and, optionally, solid coalesced foam strands using an extrusion die block equipped with apertures that promote forming the hollow strands and, optionally, the solid foam strands.Type: GrantFiled: November 3, 2000Date of Patent: January 18, 2005Assignee: Dow Global Technologies Inc.Inventors: Vyacheslav D. Grinshpun, Michael E. Schaller, Martin H. Tusim, Andrew R. Brush, Jonathan D. Park
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Publication number: 20040224172Abstract: A paperboard laminate useful for making gable top juice cartons is provided. The laminate provides for a high melting point polymer such as a semi-crystalline nylon to be applied directly to a board surface as an oxygen barrier layer. An anti-scalping layer is also provided by a polar polymer which is connected by a tie layer to an outermost skin coat layer. Positioned between the skin coat layer and the oxygen barrier layer are one or more bulk layers of polyolefins. The resulting laminate affords a juice carton which has good oxygen barrier and Vitamin C retention properties, is resistant to overactivation during heat sealing, has minimal scalping of d-limonene and essential oils, and has excellent bulge resistance.Type: ApplicationFiled: May 8, 2003Publication date: November 11, 2004Inventors: Kevin Cable, Steven Frohock
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Patent number: 6808772Abstract: The invention relates to a vapor barrier for use in the thermal insulation of buildings which can be used, in particular, for thermal insulation procedures in new buildings or in the renovation of old buildings. The vapor barrier in accordance with the invention is thereby capable of achieving water vapor exchange under different ambient conditions. This is achieved by using a material which has a water vapor diffusion resistance which is dependent on the ambient humidity and which also has adequate tensile strength and tear resistance.Type: GrantFiled: July 14, 2003Date of Patent: October 26, 2004Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.Inventors: Hartwig Kunzel, Theo Grosskinsky
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Publication number: 20040191547Abstract: A process for finishing a wood or wooden board, in particular an MDF or HDF board, with an upper side and an underside. The process includes applying a sealing layer of melamine resin to the upper side of the board and printing a decoration onto the sealing layer. A protective layer is applied of melamine resin to the decoration and the board is pressed under the action of temperature until the protective layer and the sealing layer melt and bond to each other with the inclusion of the decoration printed on.Type: ApplicationFiled: March 4, 2004Publication date: September 30, 2004Inventor: Frank Oldorff
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Patent number: 6761972Abstract: A direct drawing type lithographic printing plate precursor comprising a water-resistant support and an image-receiving layer, the image-receiving layer comprising a filler and a binder resin, wherein the filler comprises a porous filler, and the binder resin comprises a complex comprising a resin containing a bond in which a metal atom is connected with an oxygen atom and an organic polymer containing a group capable of forming a hydrogen bond with the resin.Type: GrantFiled: March 12, 2002Date of Patent: July 13, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Seishi Kasai, Eiichi Kato
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Publication number: 20040103605Abstract: The invention relates to a vapor barrier for use in the thermal insulation of buildings which can be used in particular, for thermal insulation procedures in new buildings or in the renovation of old buildings. The vapor barrier in accordance with the invention is thereby capable of achieving water vapor exchange under different ambient conditions. This is achieved by using a material which has a water vapor diffusion resistance which is dependent on the ambient humidity and which also has adequate tensile strength and tear resistance.Type: ApplicationFiled: July 14, 2003Publication date: June 3, 2004Applicant: FRAUNHOFER GESELL. ZUR FOERD. DER ANG. FORS. E.V.Inventors: Hartwig Kunzel, Theo Grosskinsky
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Publication number: 20040103604Abstract: The invention relates to a vapor barrier for use in the thermal insulation of buildings which can be used, in particular, for thermal insulation procedures in new buildings or in the renovation of old buildings. The vapor barrier in accordance with the invention is thereby capable of achieving water vapor exchange under different ambient conditions. This is achieved by using a material which has a water vapor diffusion resistance which is dependent on the ambient humidity and which also has adequate tensile strength and tear resistance.Type: ApplicationFiled: July 14, 2003Publication date: June 3, 2004Applicant: FRAUNHOFER GESELL. ZUR FOERD. DER ANG. FORS. E.V.Inventors: Hartwig Kunzel, Theo Grosskinsky
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Publication number: 20040103607Abstract: The invention relates to a vapor barrier for use in the thermal insulation of buildings which can be used, in particular, for thermal insulation procedures in new buildings or in the renovation of old buildings. The vapor barrier in accordance with the invention is thereby capable of achieving water vapor exchange under different ambient conditions. This is achieved by using a material which has a water vapor diffusion resistance which is dependent on the ambient humidity and which also has adequate tensile strength and tear resistance.Type: ApplicationFiled: July 14, 2003Publication date: June 3, 2004Applicant: FRAUNHOFER GESELL. ZUR FOERD. DER ANG. FORS. E.V.Inventors: Hartwig Kunzel, Theo Grosskinsky
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Publication number: 20040103603Abstract: The invention relates to a vapor barrier for use in the thermal insulation of buildings which can be used, in particular, for thermal insulation procedures in new buildings or in the renovation of old buildings. The vapor barrier in accordance with the invention is thereby capable of achieving water vapor exchange under different ambient conditions. This is achieved by using a material which has a water vapor diffusion resistance which is dependent on the ambient humidity and which also has adequate tensile strength and tear resistance.Type: ApplicationFiled: July 14, 2003Publication date: June 3, 2004Applicant: FRAUNHOFER GESELL. ZUR FOERD. DER ANG. FORS. E.V.Inventors: Hartwig Kunzel, Theo Grosskinsky
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Publication number: 20040103606Abstract: The invention relates to a vapor barrier for use in the thermal insulation of buildings which can be used, in particular, for thermal insulation procedures in new buildings or in the renovation of old buildings. The vapor barrier in accordance with the invention is thereby capable of achieving water vapor exchange under different ambient conditions. This is achieved by using a material which has a water vapor diffusion resistance which is dependent on the ambient humidity and which also has adequate tensile strength and tear resistance.Type: ApplicationFiled: July 14, 2003Publication date: June 3, 2004Inventors: Hartwig Kunzel, Theo Grosskinsky
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Patent number: 6677048Abstract: The lid structure for a food packaging container comprises a paper-based body layer and, on the side that is to be against the packaging container, plastic layers that function as a barrier and as heat-sealable layers. The lid structure comprises, as the plastic layers attached to the body layer, one or more layers of biodegradable plastic, such as polylactide and/or polyhydroxy alkanoate and on their outer side, the outermost layer, which is formed of biodegradable ester copolymer, to whose ester parts a comonomer has been linked by ester or amide bonds.Type: GrantFiled: January 18, 2001Date of Patent: January 13, 2004Assignee: UPM-Kymmene CorporationInventors: Hannu Karhuketo, Heikki Korpela
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Publication number: 20030186069Abstract: A barrier laminate useful for the formation of orange juice and citrus beverage cartons is provided. The laminate provides a skin coat of a MDPE which provides a barrier to water vapor transmission through the laminate. The reduced water vapor flow decreases the bulge rate of the resulting carton.Type: ApplicationFiled: May 29, 2002Publication date: October 2, 2003Inventors: Alan W Denney, Linea Brady Keen
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Patent number: 6616805Abstract: A surface-treating agent mainly includes three constituents: a water-soluble polymer; a surface sizing agent which is a copolymer of a styrene type monomer and an anionic monomer and which mainly includes a water-soluble copolymer containing 20 to 80 weight % of the styrene type monomer; and a surface sizing agent which is a copolymer of an olefin type monomer and an anionic monomer and which mainly includes a water-soluble copolymer containing 20 to 80 weight % of the olefin type monomer. The surface-treating agent is coated and dried on a base paper for offset printing.Type: GrantFiled: September 19, 2001Date of Patent: September 9, 2003Assignee: Nippon Paper Industries, Co., Ltd.Inventors: Toshiyuki Takano, Hiroshi Ono, Hideki Fujiwara
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Patent number: 6607795Abstract: Herein is disclosed an oxygen scavenging composition, comprising (i) an oxygen scavenging polymer comprising units having structure I: wherein R1 and R2 are independently selected from the group consisting of —O—, —NCO—, and —NR—, wherein R is selected from the group consisting of —H and —C1-C6 alkyls; (ii) a transition metal oxidation catalyst; and (iii) an energy-absorbing compound selected from the group consisting of microwave reactive materials and photoinitiators having a wavelength of maximum absorption of electromagnetic radiation from about 200 nm to about 750 nm. The oxygen scavenging composition can be used to form an oxygen scavenging packaging article.Type: GrantFiled: December 19, 2001Date of Patent: August 19, 2003Assignee: Chevron Phillips Chemical Company LPInventors: Hu Yang, Ta Yen Ching, Peter Kwan
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Publication number: 20030144402Abstract: A polymer composition comprising a blend of amorphous nylon copolymer and polyester that is useful in packaging applications where good barrier properties are desired. These compositions can be effectively processed using methods including extrusion blow molding and extrusion coating. When incorporated as a layer in a package, these blends exhibit good gas barrier properties and a reduced tendency to absorb flavor from a packaged product. These blends exhibit a combination of processibility and properties that is difficult to achieve with polyester alone.Type: ApplicationFiled: December 16, 2002Publication date: July 31, 2003Inventor: Timothy Tyler Schenck
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Patent number: 6599638Abstract: A filter substrate impregnated with an emulsion polymer, the emulsion polymer being substantially devoid of phenolics and stabilized using a protective colloid.Type: GrantFiled: September 8, 2000Date of Patent: July 29, 2003Assignee: Dow Reichhold Specialty Latex LLCInventor: Venkataram Krishnan
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Patent number: 6582808Abstract: A packaging laminate for a container which enables a blend monolayer to be effectively extrusion coated onto the paperboard substrate as the product contact layer without the need for tie layers or multilayer co-extrusion equipment. The blend monolayer has superior oxygen transmission resistance and has excellent pinhole resistance compared to straight polyethylene monolayer. The product contact layer consists of a blend of a polyolefin polymer, a polyamide, and a compatibilizer in a preferred embodiment. The monolayer blend is a low cost alternative to multilayer structures.Type: GrantFiled: August 1, 2001Date of Patent: June 24, 2003Assignee: International Paper CompanyInventors: Gregory J. Castle, Dolan R. Johnson, Keith S. Shih, A. Craig Bushman
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Publication number: 20030027006Abstract: Novel addition products of isocyanates with oxyalkylene-substituted aminophenol compounds as intermediates for the production of urethane-substituted xanthene colorants, particularly triphenylmethane derivatives such as rhodamines, are provided. The xanthene colorants exhibit improved wax and/or oil solubility and high purity. The urethane-substituted xanthene colorant features very good wax and/or oil solubility, and is believed to be relatively nontoxic. A method for producing this novel colorant is also provided.Type: ApplicationFiled: September 25, 2002Publication date: February 6, 2003Inventors: Rajnish Batlaw, Patrick D. Moore
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Patent number: 6420045Abstract: The present invention relates to a multilayer structure comprising a material covered with a copolymer having polyamide blocks and hydrophilic blocks where the copolymer has a melting point of less than 135° C.Type: GrantFiled: June 23, 2000Date of Patent: July 16, 2002Assignee: AtofinaInventors: Heike Faulhammer, Yves Aubert, Thierry Briffaud, Hermann Josef Hilgers, Didier Roumilhac
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Patent number: 6399714Abstract: A crosslinked polyamide material and a process for preparing the crosslinked polyamide material are disclosed. The crosslinked polyamide material comprises a crosslinked chemical combination of (1) a polyamide of the formula: wherein n is between about 50 and 10,000, wherein each R is between 1 and 50 carbon atoms alone and is optionally substituted with heteroatoms, oxygen, nitrogen, sulfur, or phosphorus and combinations thereof, wherein multiple of the R are in vertically aligned spaced relationship along a backbone forming the polyamide, and wherein two or more of the R contain an amino group; and (2) a crosslinking agent containing at least two functional groups capable of reacting with the amino groups of the polyamide. In one embodiment of the invention, the crosslinking agent is an aliphatic or aromatic isocyanate compound having 2 or more —N═C═O groups.Type: GrantFiled: September 27, 2000Date of Patent: June 4, 2002Assignee: Michigan Biotechnology InstituteInventors: Zhi H. Huang, William F. McDonald, Stacy C. Wright, Andrew C. Taylor
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Publication number: 20020051873Abstract: A packaging laminate for a container which enables a blend monolayer to be effectively extrusion coated onto the paperboard substrate as the product contact layer without the need for tie layers or multilayer co-extrusion equipment. The blend monolayer has superior oxygen transmission resistance and has excellent pinhole resistance compared to straight polyethylene monolayer. The product contact layer consists of a blend of a polyolefin polymer, a polyamide, and a compatibilizer in a preferred embodiment. The monolayer blend is a low cost alternative to multilayer structures.Type: ApplicationFiled: August 1, 2001Publication date: May 2, 2002Inventors: Gregory J. Castle, Dolan R. Johnson, Keith S. Shih, A. Craig Bushman
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Patent number: 6372317Abstract: A barrier laminate useful for the formation of orange juice and citrus beverage cartons is provided. The laminate provides a skin coat of a MDPE which provides a barrier to water vapor transmission through the laminate. The reduced water vapor flow decreases the bulge rate of the resulting carton.Type: GrantFiled: November 30, 1999Date of Patent: April 16, 2002Assignee: Blue Ridge Paper Products Inc.Inventors: Alan W. Denney, Linnea Brady Keen
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Patent number: 6322899Abstract: 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: GrantFiled: May 6, 1999Date of Patent: November 27, 2001Assignee: UPM-Kymmene OyjInventors: Hannu Karhuketo, Heikki Korpela
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Patent number: 6306501Abstract: A laminated material comprising at least a paper layer as a substrate and a layer of a liquid-crystal polyester resin composition, which are laid one upon the other, the liquid-crystal polyester resin composition-containing layer comprising (A) liquid-crystal polyester as a continuous phase and (B) rubber having a functional group reactive with the liquid-crystal polyester as a dispersed phase. The laminated material has an excellent heat resistance, flexibility, and gas barrier properties and a paper pack container is formed from said laminated material.Type: GrantFiled: March 17, 1998Date of Patent: October 23, 2001Assignee: Sumitomo Chemical Company LimitedInventors: Motonobu Furuta, Takanari Yamaguchi
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Patent number: 6210792Abstract: The invention relates to a composition comprising a thermoplastic polymer and wood fiber composite that can be used in the form of a linear extrudate or thermoplastic pellet to manufacture structural members. The polymer, the fiber or both can be modified to increase compatibility. The wood fiber composite structural members can be manufactured in an extrusion process or an injection molding process. The linear extrudate or pellet can have a cross-section of any arbitrary shape, or can be a regular geometric. The pellet can have a cross-section shape having a volume of at least about 12 mm3. Preferably the pellet is a right cylindrical pellet having a minimum radius of about 1.5 mm and a minimum length of 1 mm weighing at least 14 mg. The invention also relates to an environmentally sensitive recycle of waste streams. The polymer and wood fiber composite contains an intentional recycle of a waste stream comprising polymer flakes or particles or wood fiber.Type: GrantFiled: November 12, 1998Date of Patent: April 3, 2001Assignee: Andersen CorporationInventors: Kasyap V. Seethamraju, Neil J. Beaverson, Kurt E. Heikkila, Michael J. Deaner
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Patent number: 6168870Abstract: A method of impregnating a polymer plastic plug with wood preservative. A first step involves dehydrating a polymer plastic plug to reduce its naturally occurring moisture content. A second step involves introducing liquid wood preservative into the polymer plastic plug while the polymer plastic plug is in a dehydrated state by immersing it in the liquid wood preservative and boiling the liquid wood preservative at temperatures that are less than that required to turn the polymer plastic plug into a molten state. In accordance with the teachings of this method liquid wood preservative is absorbed into the dehydrated polymer plastic plug in place of the naturally occurring moisture content.Type: GrantFiled: August 24, 1998Date of Patent: January 2, 2001Assignee: Genics Inc.Inventor: Wesley James Wall