Fire Proofing Agent Patents (Class 162/159)
  • Patent number: 11512426
    Abstract: The present invention relates to a process for obtaining cellulose or a mixture containing at least cellulose and at least lignocellulose from at least one substrate that is at least to some extent amenable to fermentation comprising at least the steps of (1) to (3) and optionally (4), namely conversion of the substrate via addition of at least one inorganic base into an aqueous mixture with pH?8.5 (step 1), ultrasound treatment of the aqueous mixture obtained after step (1) (step 2), separation of the aqueous mixture obtained after step (2) into a liquid aqueous phase and a disperse mixture containing, cellulose or a mixture containing at least cellulose and at least lignocellulose (step 3) and optionally purification of the disperse mixture obtained after step (3) containing cellulose or of the mixture containing at least cellulose and at least lignocellulose (step 4), where step (1) and step (2) of the process respectively are carried out at a temperature <100° C.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: November 29, 2022
    Inventor: Rainer Fülling
  • Patent number: 11390998
    Abstract: A flame retardant paper includes pulp, aluminum hydroxide, guanidine phosphate and guanidine sulfamate, wherein the content of the pulp is 10 to 35% by mass and the content of the aluminum hydroxide is 40 to 70% by mass, and the total content of the guanidine phosphate and the guanidine sulfamate is 0.1 to 10% by mass based on the contents of the flame retardant paper.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: July 19, 2022
    Assignee: Toray Industries, Inc.
    Inventors: Hideaki Karasaki, Tomoko Takano, Kazuya Nishioka
  • Patent number: 11123958
    Abstract: A laminate material comprising a paper web and a polymeric film adhered to the paper web, the polymeric film comprising a biodegradable polymeric material that includes an organic additive.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: September 21, 2021
    Assignee: Chase Corporation
    Inventors: Jeffrey Adams Sargeant, Jonathan Bowden, Bradlee W. Gustavesen, Harold James Klei, James E. Lordi, Adam Chase
  • Patent number: 10987442
    Abstract: The present invention relates to an information medium to be handled by a large number of users, such as a banknote, and having antiviral properties, and to a method for making same.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: April 27, 2021
    Assignee: OBERTHUR FIDUCIAIRE SAS
    Inventor: Henri Rosset
  • Patent number: 10400172
    Abstract: The invention relates to a fire protection composition comprising: a binder based on an aqueous, or solvent-based polymer dispersion; fire protection additives comprising a physically acting expanding agent, a compound containing phosphorus, selected from among salts or esters of phosphorus oxyacids, and glass fiber; and an acid-resistant, inorganic filler. The invention also relates to the use of said composition as a sealing mass, in particular as a fire protection sealing mass.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: September 3, 2019
    Assignee: Hilti Aktiengesellschaft
    Inventors: Herbert Muenzenberger, Sebastian Simon, Ingrid Woelfle
  • Patent number: 10294351
    Abstract: A flameproofing agent for fibers which has high flameproofness and excellent physical properties (light resistance, heat resistance, texture), a process for manufacturing a flameproof fiber product and a flameproof fiber product. The flameproofing agent comprises an organic phosphorus compound (component A) represented by the following formula (1). (In the above formula, X1 and X2 are the same or different and each an aromatic substituted alkyl group represented by the following formula (2).) ALAr)n??(2) (In the above formula, AL is a branched or linear aliphatic hydrocarbon group having 1 to 5 carbon atoms, Ar is a phenyl group, naphthyl group or anthryl group all of which may have a substituent, “n” is an integer of 1 to 3, and Ar may be bonded to any carbon atom contained in AL.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: May 21, 2019
    Assignees: TEIJIN LIMITED, MARUBISHI OIL CHEMICAL CO., LTD.
    Inventors: Katsuhiro Yamanaka, Tsuyoshi Takeda, Kuniaki Kondo, Masaki Haruyoshi
  • Patent number: 9589703
    Abstract: A data cable can include a plurality of insulated conductors twisted into pairs, an intumescent tape surrounding one or more of the insulated conductors, and a jacket. Each of the plurality of insulated conductors includes a conductor and an insulation layer. Data cables being fluoropolymer-free or halogen free are also described herein.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: March 7, 2017
    Assignee: General Cable Technologies Corporation
    Inventors: Srinivas Siripurapu, Scott M. Brown, Sean W. Culligan, Stephen A. Thwaites, Jianmin Liu, Eric W. Bates, Roy Kusuma
  • Publication number: 20150140047
    Abstract: The present invention relates to a surface treatment and a method for its application for the introduction of a wide variety of differentiating properties to fibersin sliver form through a surface treatment of said fibers. The system can accommodate chemical processes, sonochemical processes, and acoustic cavitation processes whereby the fibers are speckled or plated with at least one predetermined compound in a liquid medium to impart at least one desired property to the fibers and for the orderly inclusion of such treated fibers in sliver form having such properties in yarns, woven, knit, or non-woven textiles.
    Type: Application
    Filed: April 24, 2013
    Publication date: May 21, 2015
    Applicant: ARGAMAN TECHNOLOGIES LTD.
    Inventor: Jerry Greenwald
  • Publication number: 20150125705
    Abstract: The invention relates to a display rear shell with waterproof and fireproof properties comprising a main layer of a pulp made from hardwood in an amount from 80% to 90% by weight of the main layer, a pulp waterproof composition in an amount from 5% to 15% by weight of the main layer, and a flame retardant in an amount of a remaining weight percentage by weight of the main layer, a fireproof layer and a waterproof layer, in place of a traditional plastic display rear shell using plastic materials for characteristics as waterproof, fireproof and light weight.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 7, 2015
    Applicants: SHENYANG TONGFANG MULTIMEDIA TECHNOLOGY CO., LTD., TONGFANG GLOBAL LIMITED
    Inventors: TH LAM, WEN-SHENG LU, CHIH-MING HUANG, TSUNG-HSIEN CHUANG, CHRISTOPHER NG
  • Patent number: 9005396
    Abstract: A method is provided for forming a fire resistant cellulose product. A fire-retarding solution and a bonding agent are combined with refined cellulose fibers to form a fiber mixture, and the fire-retarding solution and bonding agent are substantially uniformly distributed with respect to the cellulose fibers within the fiber mixture. The fiber mixture is exposed to an actuating element, wherein the actuating element is configured to actuate the bonding agent so as to facilitate cohesion of the cellulose fibers and form the fiber mixture into a fiber board member, the fiber board member having opposing major surfaces. A cellulose sheet member is engaged with each major surface of the fiber board member, such that each cellulose sheet member substantially covers the respective major surface. An associated apparatus is also provided.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: April 14, 2015
    Assignee: BLH Technologies Inc.
    Inventor: Daniel Baroux
  • Publication number: 20150068657
    Abstract: The present invention provides composite materials comprising a population of cellulose fibers complexed with an activator, and an additive comprising synthetic fibers complexed with a tethering agent, wherein the tethering agent has an affinity for the activator, and wherein an interaction between the tethering agent and the activator attaches the synthetic fibers to the cellulose fibers to form the composite material. The present invention also provides methods of manufacture for such composite materials, and methods for their use, for example in forming gypsum board composites.
    Type: Application
    Filed: May 29, 2014
    Publication date: March 12, 2015
    Applicant: Soane Labs, LLC
    Inventors: Gangadhar Jogikalmath, David S. Soane
  • Patent number: 8948920
    Abstract: Temperature is controlled in a refrigerated transport container comprising a transport volume, a control unit, a cooling space, one or more fans providing air flow through the cooling space, where air passing through the cooling space passes a return air temperature sensor, a cooling unit, and a supply air temperature sensor. Supply air temperature (Tsup) is controlled to bring temperatures in the transport volume within a desired temperature range around a first temperature set point (Tset). The supply air temperature (Tsup) or a time-averaged function thereof is controlled to reach a temperature below the set point (Tset) during a first limited time period; and the supply air temperature (Tsup) is increased during a second limited time period following said first time period, so that the supply air temperature (Tsup) or a time-averaged function thereof at the end of said second time period is within said desired temperature range.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: February 3, 2015
    Assignee: A.P. Moller—Maersk A/S
    Inventors: Leijn Johannes Sjerp Lukasse, Poul Kim Madsen, Lars Mou Jessen
  • Publication number: 20140352903
    Abstract: A cellulosic composition comprising fibres having a length weighted average fibre length (“LWAFL”) of 0.25 to 0.40 mm.
    Type: Application
    Filed: October 26, 2011
    Publication date: December 4, 2014
    Applicant: ZEO IP PTY LTD
    Inventor: Martin Charles Ernegg
  • Patent number: 8871058
    Abstract: A process in which an at least partially delignified pulp fiber web having a Kappa number of less than about 130 is treated with an aqueous endothermic fire retardant solution having a pH of about 10 or less. The treated pulp fiber web has a near neutral pH of from about 5 to about 9, and is treated with at least about 20 lbs of endothermic fire retardants per ton of the pulp fiber web, with at least about 5% of the total amount of endothermic fire retardants being added at a point prior to when the pulp fiber web is formed. Also a fire resistant pulp fiber web having a near neutral pH.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: October 28, 2014
    Assignee: International Paper Company
    Inventors: James E. Sealey, Brent A. Fields
  • Patent number: 8871053
    Abstract: A fire resistant fluff pulp web made from a fluff pulp web, a fire retardant component present in and/or on the fluff pulp, and a fire retardant distributing surfactant which distributes the fire retardant component in and/or on the fluff pulp web in a manner so that the fluff pulp web passes one or more fire resistance tests. Also, a process for preparing these fire resistant fluff pulp webs, as well as for treating outer fibrous layers comprising an air-laid mixture of these fire resistant fluff pulp fibers and bicomponent fibers with up to about 5% additional fire retardant and which are used in fire resistant air-laid fibrous structures useful in upholstery, cushions, mattress ticking, panel fabric, padding, bedding, insulation, materials for parts in devices and appliances, etc.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: October 28, 2014
    Assignee: International Paper Company
    Inventors: James E. Sealey, Brent A. Fields
  • Patent number: 8852468
    Abstract: Modified lignin having covalently attached phosphorous containing groups and methods for preparing such compounds are described herein. The modified lignin described herein provides a renewable source of flame retardant material.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: October 7, 2014
    Assignee: Empire Technology Development LLC
    Inventor: Glen Leon Brizius
  • Patent number: 8795470
    Abstract: A system and method of producing both loose cellulose insulation and bonded fiber/cellulose insulation products utilizing shredded paper particles, including making shredded paper particles in a shredded paper particle line and diverting a portion of the shredded paper particles to a bonded fiber/cellulose product line whereby the shredded paper particle line forms an in-process production and delivery of shredded paper particles to the bonded fiber/cellulose product line. Moisture is added to the shredded paper particles at the bonded fiber/cellulose product line, and bonded fiber/cellulose insulation products are produced with the bonded fiber/cellulose product line from the diverted portion of shredded paper particles and loose cellulose insulation is produced from shredded paper particles that are not diverted from the shredded paper particle line.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: August 5, 2014
    Inventors: Mark J. Henderson, Akiva Pinto
  • Publication number: 20140174681
    Abstract: A fire resistant fluff pulp web made from a fluff pulp web, a fire retardant component present in and/or on the fluff pulp, and a fire retardant distributing surfactant which distributes the fire retardant component in and/or on the fluff pulp web in a manner so that the fluff pulp web passes one or more fire resistance tests. Also, a process for preparing these fire resistant fluff pulp webs, as well as for treating outer fibrous layers comprising an air-laid mixture of these fire resistant fluff pulp fibers and bicomponent fibers with up to about 5% additional fire retardant and which are used in fire resistant air-laid fibrous structures useful in upholstery, cushions, mattress ticking, panel fabric, padding, bedding, insulation, materials for parts in devices and appliances, etc.
    Type: Application
    Filed: February 28, 2014
    Publication date: June 26, 2014
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: JAMES E. SEALEY, BRENT A. FIELDS
  • Patent number: 8747709
    Abstract: Modified lignin having covalently attached phosphorous containing groups and methods for preparing such compounds are described herein. The modified lignin described herein provides a renewable source of flame retardant material.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: June 10, 2014
    Assignee: Empire Technology Development LLC
    Inventor: Glen Leon Brizius
  • Patent number: 8685206
    Abstract: A fire resistant fluff pulp web made from a fluff pulp web, a fire retardant component present in and/or on the fluff pulp, and a fire retardant distributing surfactant which distributes the fire retardant component in and/or on the fluff pulp web in a manner so that the fluff pulp web passes one or more fire resistance tests. Also, a process for preparing these fire resistant fluff pulp webs, as well as for treating outer fibrous layers comprising an air-laid mixture of these fire resistant fluff pulp fibers and bicomponent fibers with up to about 5% additional fire retardant and which are used in fire resistant air-laid fibrous structures useful in upholstery, cushions, mattress ticking, panel fabric, padding, bedding, insulation, materials for parts in devices and appliances, etc.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: April 1, 2014
    Assignee: International Paper Company
    Inventors: James E. Sealey, Brent A. Fields
  • Patent number: 8663427
    Abstract: A process in which an at least partially delignified pulp fiber web having a Kappa number of less than about 130 is treated with an aqueous endothermic fire retardant solution having a pH of about 10 or less. The treated pulp fiber web has a near neutral pH of from about 5 to about 9, and is treated with at least about 20 lbs of endothermic fire retardants per ton of the pulp fiber web, with at least about 5% of the total amount of endothermic fire retardants being added at a point prior to when the pulp fiber web is formed. Also a fire resistant pulp fiber web having a near neutral pH.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: March 4, 2014
    Assignee: International Paper Company
    Inventors: James E. Sealey, Brent A. Fields
  • Patent number: 8603231
    Abstract: Inorganic-organic composite articles and methods for producing them using inorganic acidic/alkaline precursor components as inorganic adhesives is provided. Articles prepared therefrom provide improved flexibility, zero flame spread, no release of volatile organic compounds, and low carbon foot print.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: December 10, 2013
    Assignee: Latitude 18, Inc.
    Inventors: Arun S. Wagh, Sameerkumar Vasantlal Patel, Anand Paul Mangalam
  • Publication number: 20130319626
    Abstract: The present invention provides a method and material for manufacturing backplane component. The method includes (1) providing a raw material, which comprises one or more of paper, bamboo, and wood; (2) pulverizing the raw material to form slurry; (3) adding functional agents in the slurry, wherein the functional agents comprise one or more of water repellent agent for waterproofing, flame retardant agent for flame retardation, solidification agent for speeding up solidification, plastics for improving stiffness, glass fibers for improving strength, metal powder for enhancing heat dissipation, and reflection assisting agent for improving reflection capability; (4) applying a mold in a forming machine to carry out suction forming of the slurry; and (5) drying and shape-fixing so as to make a backplane component.
    Type: Application
    Filed: June 5, 2012
    Publication date: December 5, 2013
    Applicant: Shenzhen China Star Optoelectronics Technology Co
    Inventors: Zhilin Zhao, Yuchun Hsiao
  • Patent number: 8585864
    Abstract: Flame retardant composite materials are provided which include at least one first paper which comprises carbon nanofibers and graphite oxide particles. The composite materials may further include at least one second paper which comprises carbon nanofibers. The composites may further include one or more structural material layers sandwiched between the first and second papers. Occupant structures are also provided with fire and smoke retardant surfaces composed of carbon nanofibers/graphite oxide particles papers at least partially surrounding occupants of the occupant structures.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: November 19, 2013
    Assignee: Florida State University Research Foundation, Inc.
    Inventors: Chuck Zhang, Zhiyong Liang, Ben Wang, Qiang Wu
  • Publication number: 20130292077
    Abstract: A method is provided for forming a fire resistant cellulose product. A fire-retarding solution and a bonding agent are combined with refined cellulose fibers to form a fiber mixture, and the fire-retarding solution and bonding agent are substantially uniformly distributed with respect to the cellulose fibers within the fiber mixture. The fiber mixture is exposed to an actuating element, wherein the actuating element is configured to actuate the bonding agent so as to facilitate cohesion of the cellulose fibers and form the fiber mixture into a fiber board member, the fiber board member having opposing major surfaces. A cellulose sheet member is engaged with each major surface of the fiber board member, such that each cellulose sheet member substantially covers the respective major surface. An associated apparatus is also provided.
    Type: Application
    Filed: September 7, 2010
    Publication date: November 7, 2013
    Inventor: Daniel Baroux
  • Patent number: 8568563
    Abstract: Methods of making the burnthrough resistant non-woven mat include forming the mat from glass fibers and at least two binders, a first binder having a vinyl component and a second binder having a strengthening component. The vinyl component may be, for example, ethylene vinyl chloride, and the strengthening component may be, for example, melamine formaldehyde. In one method, the vinyl component is added to the glass fibers by a beater addition process and the strengthening component is sprayed onto the glass fibers. The burnthrough resistant non-woven mat may be used in conjunction with an insulation blanket, and may be especially suited to use in insulating aircraft.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: October 29, 2013
    Assignee: Jonhs Manville
    Inventor: Glenda Beth Bennett
  • Publication number: 20130264020
    Abstract: A process in which an at least partially delignified pulp fiber web having a Kappa number of less than about 130 is treated with an aqueous endothermic fire retardant solution having a pH of about 10 or less. The treated pulp fiber web has a near neutral pH of from about 5 to about 9, and is treated with at least about 20 lbs of endothermic fire retardants per ton of the pulp fiber web, with at least about 5% of the total amount of endothermic fire retardants being added at a point prior to when the pulp fiber web is formed. Also a fire resistant pulp fiber web having a near neutral pH.
    Type: Application
    Filed: May 31, 2013
    Publication date: October 10, 2013
    Inventors: James E. Sealey, Brent A. Fields
  • Publication number: 20130183484
    Abstract: This invention is directed to a structural core comprising a fibrous web and a matrix resin, the matrix resin comprising from 15 to 75 weight percent of the weight of web plus resin, the matrix resin contains a first resin comprising tannin in an amount of 10 to 100 weight percent and a second resin in the event tannin is not present in an amount of 100 weight percent, A preferred second resin is phenolic, benzoxazine, polyester, cyanate ester, bismaleimide, epoxy, polyimide or combination thereof.
    Type: Application
    Filed: December 26, 2012
    Publication date: July 18, 2013
    Applicant: E I DU Pont DE Nemours and Company
    Inventor: E I DU Pont DE Nemours and Company
  • Patent number: 8481168
    Abstract: The present disclosure describes various building materials used in the building and construction industry, and to buildings or objects constructed therefrom, and to methods of making these building materials. The building materials comprise a polymeric material, such as sodium alginate and/or calcium alginate which confers significant flame-, fire- and heat-resistance or imperviousness to the materials. Other substances can be added to the materials to improve cross-linking and/or to produce resistance to fungal degradation. The building materials which can be produced, processed, or treated using the alginate polymers of the invention include, but are not limited to, wood products; masonry products; wall, roofing, flooring and siding products; and paint products. Further, sodium alginate in the form of a gel may be used as a firebreak to effectively stop the advance of grass fires, wildfires, and forest fires.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: July 9, 2013
    Assignee: Tamarisk Technologies, L.L.C.
    Inventor: Daniel R. DeBrouse
  • Patent number: 8460513
    Abstract: A process in which an at least partially delignified pulp fiber web having a Kappa number of less than about 130 is treated with an aqueous endothermic fire retardant solution having a pH of about 10 or less. The treated pulp fiber web has a near neutral pH of from about 5 to about 9, and is treated with at least about 20 lbs of endothermic fire retardants per ton of the pulp fiber web, with at least about 5% of the total amount of endothermic fire retardants being added at a point prior to when the pulp fiber web is formed. Also a fire resistant pulp fiber web having a near neutral pH.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: June 11, 2013
    Assignee: International Paper Company
    Inventors: James E. Sealey, Brent A. Fields
  • Patent number: 8454795
    Abstract: A system for forming bonded fiber/cellulose products includes a shredded paper particle manufacturing line producing shredded paper particle-based products, such as insulation, a bonded fiber/cellulose product line, and a collector for collecting a portion of the shredded paper particles generated by the shredded paper particle line for the bonded fiber/cellulose product line.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: June 4, 2013
    Inventors: Mark J. Henderson, Akiva Pinto
  • Publication number: 20130133850
    Abstract: A fire resistant fluff pulp web made from a fluff pulp web, a fire retardant component present in and/or on the fluff pulp, and a fire retardant distributing surfactant which distributes the fire retardant component in and/or on the fluff pulp web in a manner so that the fluff pulp web passes one or more fire resistance tests. Also, a process for preparing these fire resistant fluff pulp webs, as well as for treating outer fibrous layers comprising an air-laid mixture of these fire resistant fluff pulp fibers and bicomponent fibers with up to about 5% additional fire retardant and which are used in fire resistant air-laid fibrous structures useful in upholstery, cushions, mattress ticking, panel fabric, padding, bedding, insulation, materials for parts in devices and appliances, etc.
    Type: Application
    Filed: January 28, 2013
    Publication date: May 30, 2013
    Applicant: International Paper Company
    Inventor: International Paper Company
  • Patent number: 8388807
    Abstract: A partially fire resistant cellulosic fiber thermal insulation material from a fibrous web of unrefined virgin softwood and hardwood provides fibers which provides an R-value (as measured by the ASTM C518 test) of at least about 3, and a wood ash fire retardant component present in and/or on the fibrous web in an amount of at least about 1.5% by weight of the fibrous web and sufficient to impart at least partial fire resistance (as measured by the ASTM E970-08A test) to the fibrous web. Also, a process for preparing this at least partially fire resistant thermal insulation material.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: March 5, 2013
    Assignee: International Paper Company
    Inventors: James E. Sealey, Brent A. Fields
  • Publication number: 20130039515
    Abstract: Provided is a speaker diaphragm or a speaker voice coil bobbin manufactured by a papermaking method and including metal hydroxide by at least an amount of 30 wt % or greater. With this, it is possible to improve rigidity and achieve favorable acoustic quality by an effect of mixing metal hydroxide. Moreover, it is possible to provide a paper-made diaphragm or a voice coil bobbin with flame retardancy without increasing weight or cost.
    Type: Application
    Filed: June 24, 2011
    Publication date: February 14, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Yohei Jin, Yoshimichi Kajihara
  • Publication number: 20120255695
    Abstract: A process in which an at least partially delignified pulp fiber web having a Kappa number of less than about 130 is treated with an aqueous endothermic fire retardant solution having a pH of about 10 or less. The treated pulp fiber web has a near neutral pH of from about 5 to about 9, and is treated with at least about 20 lbs of endothermic fire retardants per ton of the pulp fiber web, with at least about 5% of the total amount of endothermic fire retardants being added at a point prior to when the pulp fiber web is formed. Also a fire resistant pulp fiber web having a near neutral pH.
    Type: Application
    Filed: April 7, 2011
    Publication date: October 11, 2012
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: JAMES E. SEALEY, BRENT A. FIELDS
  • Patent number: 8252144
    Abstract: The invention relates to a flame resistant paper product and a method for manufacturing a flame resistant paper product. In an embodiment the invention is a paper product comprising a paper substrate having a first surface and a second surface and a flame retardant composition, wherein the first surface is smoother than the second surface. In another embodiment, the invention is a method for forming a flame resistant paper product comprising applying a flame retardant composition to a web of fibers having a first surface and a second surface, wherein the first surface is smoother than the second surface by at least about 70 SSU according to TAPPI T538.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: August 28, 2012
    Assignee: Wausau Paper Mills, LLC
    Inventor: Robert Steif
  • Patent number: 8241460
    Abstract: Web to be formed into wrapping paper is applied with combustion inhibitor and then dried. Water is applied onto the entire surface of the opposite side to the combustion-inhibitor applied side of the web. The web applied with water is dried while pinched between drying and pressing rollers and stretched in a width direction. In this way, unwrinkled high-quality cigarette wrapping paper having a low ignition propensity can be stably and inexpensively manufactured. As the pressing roller, a heat-resistant rubber roller provided in its surface with a soft portion in a helical way is utilized.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: August 14, 2012
    Assignee: Japan Tobacco Inc.
    Inventors: Shinzo Kida, Takafumi Izumiya, Yuzuru Sakuma
  • Publication number: 20120199303
    Abstract: A partially fire resistant cellulosic fiber thermal insulation material from a fibrous web of unrefined virgin softwood and hardwood provides fibers which provides an R-value (as measured by the ASTM C518 test) of at least about 3, and a wood ash fire retardant component present in and/or on the fibrous web in an amount of at least about 1.5% by weight of the fibrous web and sufficient to impart at least partial fire resistance (as measured by the ASTM E970-08A test) to the fibrous web. Also, a process for preparing this at least partially fire resistant thermal insulation material.
    Type: Application
    Filed: February 8, 2011
    Publication date: August 9, 2012
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: JAMES E. SEALEY, BRENT A. FIELDS
  • Publication number: 20120193054
    Abstract: Methods and apparatuses for forming a nonwoven web are described herein. The apparatus includes a mixing partition defining one or more openings therein that permit fluid communication between two fluid flow streams, at least one of which includes a fiber. The apparatus also includes an enclosed region surrounding at least a portion of the mixing partition. The enclosed region is adapted to provide an applied pressure to a fluid flow stream to urge the stream through one or more of the openings in the mixing partition. The apparatus also includes a receiving region designed to receive at least a combined flow stream and form a nonwoven web by collecting fiber from the combined flow stream.
    Type: Application
    Filed: January 30, 2012
    Publication date: August 2, 2012
    Applicant: DONALDSON COMPANY, INC.
    Inventors: Hemant Gupta, Ajay Singh
  • Publication number: 20120017808
    Abstract: A fluff pulp or other pulp, comprises a multivalent cationic metal ion selected from the group consisting of Al+3, B+3, Mn+2, Cu+2, Cu+3, Zn+2, Sn+2, Sn+4, water-soluble salt thereof, or combination thereof; an amine-containing anti-static agent; and pulp. Methods of making and using the pulp, as well as articles therefrom, are provided.
    Type: Application
    Filed: July 18, 2011
    Publication date: January 26, 2012
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: JAMES E. SEALEY, PETER M. FROASS, SYLVIE MARIE RITA CARRIERE
  • Publication number: 20110254190
    Abstract: Inorganic-organic composite articles and methods for producing them using inorganic acidic/alkaline precursor components as inorganic adhesives is provided. Articles prepared therefrom provide improved flexibility, zero flame spread, no release of volatile organic compounds, and low carbon foot print.
    Type: Application
    Filed: February 9, 2011
    Publication date: October 20, 2011
    Applicant: LATITUDE 18, INC.
    Inventors: Arun S. Wagh, Sameerkumar Vasantlal Patel, Anand Paul Mangalam
  • Publication number: 20110220309
    Abstract: The present invention relates to resinous papers, their use as resinous preform blanks and to a method of manufacturing resinous papers. The resinous paper or preform blank is made by preparing an aqueous fiber suspension having a consistency between 0,5-8%, preparing an aqueous dispersion of a thermosetting resin, mixing the aqueous dispersion of the thermosetting resin into the aqueous fiber suspension, preparing an aqueous dispersion of an agent for fixing the thermosetting resin on the fibers of the fiber suspension, mixing the aqueous dispersion of the fixing agent into the aqueous fiber suspension, adjusting a pH value of the aqueous fiber suspension to below 5, transferring the aqueous fiber suspension to a paper machine, dewatering the fiber suspension for the formation of paper, and drying the paper to a volatile content of 5% to 10%.
    Type: Application
    Filed: May 27, 2009
    Publication date: September 15, 2011
    Inventor: Bernd Conradi
  • Publication number: 20110039467
    Abstract: The present invention relates to the use of ionic liquids as flame retardants. The compounds of the invention may be used as flame retardants in various materials without causing damage to the environment and or health of humans or animals. Ionic liquid flame retardants maybe applied alone or in combination with traditional flame retardants. Ionic liquid flame retardants can be applied to finish textile, plastic, leather, paper, rubber, or as wild fire flame retardants.
    Type: Application
    Filed: August 9, 2010
    Publication date: February 17, 2011
    Applicant: H&C Chemical
    Inventor: Yanjie Xu
  • Patent number: 7776179
    Abstract: The present invention imparts fire-retardancy upon cellulosic products utilizing a cost-effective, non-toxic, and reliable process. Unlike previous methods which impart superficial fire-retardant coatings upon finished products, the present process treats the individual cellulosic particles (i.e. fibers, chips etc.) that make up cellulose-based particle products. Treating the individual particles provides fire-retardancy throughout the entire length and width of the product. This full-depth retardancy provides superior protection, especially in catastrophic fires where the surface coat of other products can be compromised.
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: August 17, 2010
    Inventor: Thomas J. Lally
  • Patent number: 7776180
    Abstract: Provided is a process for the preparation of flame retardant cellulosic product including the steps of adding a soluble salt of silica to viscose, followed by blending and extruding the blended viscose into a spin bath, regenerating the viscose and subjecting the regenerated viscose to a step of glow proofing with polyaluminium compounds to obtain the flame retardant cellulosic product.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: August 17, 2010
    Assignee: Birla Research Institute for Applied Sciences
    Inventors: Aditya Narayan Shrivastava, Brij Bhushan Koutu, Rajeev Kumar Sharma, Daya Ram Chaurasia
  • Patent number: 7651590
    Abstract: A flame retardant and glow resistant zinc free cellulose product containing silica, modified with polyaluminium ions. In the preparation of product the cellulose solution (viscose) and sodium silicate are blended and regenerated to obtain a polymeric silica in the cellulose structure which is further modified with polyaluminium ions to attach aluminium sites on silica molecules to make the product glow resistant and impart wash fastness as well.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: January 26, 2010
    Assignee: Birla Research Institute for Applied Sciences
    Inventors: Aditya Narayan Shrivastava, Brij Bhushan Koutu, Rajeev Kumar Sharma, Daya Ram Chaurasia
  • Patent number: 7651591
    Abstract: In one embodiment, a fire retardant composite panel material is fabricated. A water-based slurry comprising partially soluble boric acid and borax pentahydrate solids is created. An adhesive used in the composite panel fabrication process is added to fibers. The water-based slurry is separately added to the adhesive and, after mixing, to the fibers. The composite panel produced thereby is also described.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: January 26, 2010
    Assignee: Sierra Pine Ltd.
    Inventor: Graham Hume
  • Patent number: 7547375
    Abstract: Making mats using glass fibers having a diameter of about 13+/?3 microns, bound with a binder formed from a homopolymer or a copolymer of polyacrylic acid and a polyol produces fibrous nonwoven mats having high tensile strength and also an unexpected high flame resistance considering the amount of oxygen in the binder. Mats of the present invention pass the National Fire Protection Association's (NFPA) Flammability Test. Tabor stiffness of these mats is greater than about 40, preferably greater than about 50 and most preferably greater than about 55. Air permeability of the mats is preferably within the range of about 500 to about 800 CFM/sq. ft. Methods of making the mat are also disclosed.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: June 16, 2009
    Assignee: Johns Manville
    Inventors: Alan Michael Jaffee, Richard Emil Kajander
  • Publication number: 20090133847
    Abstract: Wood products, specifically wood commonly used in construction including dimension lumber, pressure treated pine, composite wood materials such as plywood, particle board, and wafer board, and samples of paper and fabric were variously treated with concentrations of sodium silicate (Na2O.SiO2) also known as water glass. Cellulosic materials including dimension lumber, plywood, particle board, wafer board, paper, and fabric were treated with sodium silicate (Na2O.SiO2) in concentrations ranging from 400-0.04 g Na2O.SiO2/kg water. To overcome the disadvantages of sodium silicate, sodium silicate treated samples were further treated to convert the water soluble sodium silicate to a water insoluble form, thereby overcoming the disadvantages of water solubility and rendering the material effective for internal and external uses.
    Type: Application
    Filed: November 16, 2007
    Publication date: May 28, 2009
    Inventors: K. M. Slimak, Robert A. Slimak
  • Patent number: RE46131
    Abstract: The present invention relates to an acoustical tile that includes a core and a surface treatment. The surface treatment comprises a formaldehyde-free latex binder, the binder including at least one formaldehyde-free biocide. The present invention also provides a process of manufacturing an acoustical tile.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: August 30, 2016
    Assignee: USG INTERIORS, LLC
    Inventors: Adelaida Carbo, Gary Hacker, Charles Byers, Scott Daryl Cimaglio