Sulfur-containing Ester, E.g., Viscose, Xanthate, Etc. Patents (Class 524/36)
  • Publication number: 20150110993
    Abstract: A flame resistant composite fabric includes a first flame resistant fabric layer, a second flame resistant fabric layer, and a barrier layer that bonds the first flame resistant fabric layer to the second flame resistant fabric layer. The barrier layer is capable of withstanding temperature of 500° F. for at least 5 minutes without substantial change in the integrity of the flame resistant composite fabric.
    Type: Application
    Filed: October 17, 2011
    Publication date: April 23, 2015
    Inventors: Shawn Flavin, David Costello, Jane Hunter, Michael Batson, Gadalia Vainer, Heidi Carlone
  • Patent number: 8691003
    Abstract: An indicator is useful for detecting pressure points on a denture. The indicator is made of a composition that easily adheres to oral mucosa, has a proper viscosity in an oral cavity environment, can be properly spread between an oral mucosa surface and a denture base, and easily specifies an affected part. The composition includes a fatty acid ester having a melting point of 30 to 50° C., a water-soluble high polymer, and a metal oxide. Preferably, the fatty acid is 40 to 95% by weight of the composition, the water-soluble high polymer is 1 to 59% by weight of the composition, and the metal oxide is 0.1 to 50% by weight of the composition.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: April 8, 2014
    Assignee: GC Corporation
    Inventors: Yutaka Shinozaki, Hiroshi Kamohara
  • Publication number: 20130212790
    Abstract: A flame retardant fibre blend comprising: a flame retardant fibre blend comprising: 40% to 60% by weight of a modacrylic; 5% to 25% by weight of a natural cellulosic material; and 20% to 40% by weight of a FR viscose based material; wherein any remaining weight % is made up of any one or a combination of the modacrylic, cellulosic or FR viscose or of nylon in range trace to 7% or para-aramid fibre in the range trace to 7%. The fibre blend is particularly suitable for the manufacture of a ‘universal’ fabric configured to be resistant to flame, flash fire hazard, electric discharge and molten metal hazards.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 22, 2013
    Inventors: Richard Waxman, Peter Seward
  • Publication number: 20110200783
    Abstract: The present invention relates to the use of a multilobal cellulosic staple fiber as a filling fiber. Furthermore, the invention relates to a cellulosic staple fiber which is characterized in that the cross-section of the fiber has three or more lobes the titer of the fiber is 1.0 to 30 dtex, preferably more than 3.0 dtex, especially more than 5.0 dtex, preferably 5.6 to 10 dtex, especially preferred more than 6.0 dtex, especially 6.3 to 10 dtex the wet modulus of the fiber fulfils the following formula: Wet modulus (cN/tex)?0.5*?IT wherein T is the titer of the fiber in dtex the breaking strength of the fiber in the conditioned state fulfils the following formula: Breaking Strength (cNitex)?1.3*?T+2*T wherein T is the titer of the fiber in dtex.
    Type: Application
    Filed: April 27, 2011
    Publication date: August 18, 2011
    Applicant: LENZING AKTIENGESELLSCHAFT
    Inventors: Gert Kroner, Heinrich Firgo, Johann Manner, Peter Sulek, Hans-Herbert Sulek
  • Patent number: 7851522
    Abstract: An aqueous adhesive composition includes a polymer adhesive material having a pH of less than 7, a cationic thickener or an anionic thickener formed from at least one anionic monomer having a pKa of less than 3, and water. The adhesive composition has a stringing length of 9 cm or less and a sag distance of 10 mm or less.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: December 14, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Cordell M. Hardy, Mark E. Fagan, Scott D. Pearson, Kurt C. Melancon, Matthew T. Scholz
  • Patent number: 7754791
    Abstract: A substantially non-elastic incompressible composition, which substantially does not quickly self-level under standard operating conditions, includes: a suspending agent which reacts substantially as a solid when subjected to forces below a critical force, and which becomes substantially flowable when subjected to forces above said critical force; ceramic microparticulates dispersed within the suspending agent; flexible-walled microparticulates dispersed within the suspending agent; and celled macroparticulates dispersed within the suspending agent. The composition provides an incident energy absorbing property. The incident energy may include sound energy, and the microparticulates and macroparticulates may convert some of the sound energy into heat, or may diffract the sound energy.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: July 13, 2010
    Assignee: Sereflex Group LLC
    Inventor: Joel Sereboff
  • Patent number: 7645725
    Abstract: Fluids useful as subterranean treatment fluids, and more particularly, polymeric fluid loss additives, subterranean treatment fluids with improved fluid loss control, and their associated methods of use, are provided. In one embodiment, the methods comprise: providing a treatment fluid that comprises a base fluid, and a polymeric fluid loss control additive that comprises at least a first plurality of polymer molecules having a first average molecular weight, and a second plurality of polymer molecules having a second average molecular weight, wherein the first average molecular weight is different from the second average molecular weight; and introducing the treatment fluid into a subterranean formation.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: January 12, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jimmie D. Weaver, Billy F. Slabaugh, Harold G. Walters
  • Patent number: 7473719
    Abstract: The present invention provides crosslinkable compositions useful in the preparation of hydrophilic gels, and are prepared from polymers having pendent hydrophilic groups, and pendant Michael donor groups, and crosslinked by polyacryl Michael acceptor compounds.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: January 6, 2009
    Assignee: 3M Innovative Properties
    Inventors: David J. Plaut, Duane D. Fansler, Kevin M. Lewandowski, Babu N. Gaddam
  • Publication number: 20080265222
    Abstract: Multifunctional surface-modified cellulose-containing fibers, especially for producing paper and cardboard packagings, are provided with numerous specific advantages regarding production and the product. The invention particularly relates to cellulose compounds and microcomposites in which solid materials, liquids, and dispersed or amorphous additives, for example, are coated onto the surface of the cellulose, and methods for the production of said compounds.
    Type: Application
    Filed: November 3, 2005
    Publication date: October 30, 2008
    Inventors: Alex Ozersky, Ralf Recknagel, Hans-Georg Brendle
  • Patent number: 7335690
    Abstract: The present invention provides crosslinkable compositions useful in the preparation of hydrophilic gels, and are prepared from polymers having pendent hydrophilic groups, and pendant Michael donor groups, and crosslinked by polyacryl Michael acceptor compounds.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: February 26, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: David J. Plaut, Duane D. Fansler, Kevin M. Lewandowski, Babu N. Gaddam
  • Patent number: 7066996
    Abstract: A mixture composition of a cellulose ether made from raw cotton linters and at least one additive is used in a ready mixed joint compound composition wherein the amount of the cellulose ether in the joint compound composition is significantly reduced. When this joint compound composition is mixed with water and applied to a substrate, the water retention, sag resistance, and workability of the wet joint compound are comparable or improved as compared to when using conventional similar cellulose ethers.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: June 27, 2006
    Assignee: Hercules Incorporated
    Inventor: Thomas J. Podlas
  • Patent number: 6800593
    Abstract: Disclosed is a hydrophilic, water soluble polymer concentrate for addition to aqueous liquids to enhance the properties thereof, particularly to increase the viscosity or decrease the fluid loss of well drilling and servicing fluids, the concentrate comprising a hydrophobic, water insoluble liquid, an organophilic clay suspension agent, the water soluble polymer, and a stabilizing agent comprising one or more acids in an amount from about 0.001% to about 1.5%, one or more anionic surfactants in an amount from about 0.001% to about 1.0%, one or more nonionic surfactants in an amount from 0.001% to about 0.625% and, from about 0% to about 0.75% of one or more water soluble organic liquids, wherein the total concentration of the stabilizing agent is from about 0.1% to about 2.5%, these percentages being based on the weight of the concentrate.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: October 5, 2004
    Assignee: Texas United Chemical Company, LLC.
    Inventors: James W. Dobson, Jr., Shauna Leigh Hayden, Carolina Trejo Rangel
  • Patent number: 6515049
    Abstract: The present invention relates to water-soluble ionic cellulose ethers from the group of the hydroxyalkylcelluloses which are substituted by on average from 0.001 to 1.0 alkyl group per anhydroglucose unit and which carry from 0.01 to 0.1 sulfoalkyl group per anhydroglucose unit, to processes for preparing them and to the use of water-soluble ionic cellulose ethers from the group of the hydroxyalkylcelluloses which are substituted by on average from 0.001 to 1.0 alkyl group per anhydroglucose unit and which carry from 0.01 to 0.4 sulfoalkyl group per anhydroglucose unit as protective colloids in polymerizations.
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: February 4, 2003
    Assignee: Clariant GmbH
    Inventors: Reinhard Doenges, Horst Wurm
  • Patent number: 6451884
    Abstract: Cationic cellulose particles useful in papermaking comprise from greater than 10 up to 50 percent by weight on cellulose of a polymeric amine of weight-average molecular weight in the range from 100,000 to 1,000,000 comprising monomeric units having the formula: —XCR3((CH2)nNR1R2)(CH2)m— where X is selected from the group consisting of a chemical bond, O and NR4; R1 and R2 are the same or different and are selected from the group consisting of H, C1-C4 alkyl, phenyl and phenyl substituted with one, two or three substituents selected from the group consisting of C1-C4 alkyl, C1-C4 alkoxy, F, Cl and Br; R3 and R4 are independently selected from the group consisting of H, methyl and ethyl; m is an integer in the range from 1 to 4; and n is an integer in the range from 0 to 4.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: September 17, 2002
    Assignee: Acordis Kelheim GmbH
    Inventors: Philip Edward Cowen, Richard Kinseher
  • Patent number: 6245837
    Abstract: The present invention relates to the use of a linear synthetic polymer having a molecular weight of from 5.103 to 1.107 to improve the strength, to reduce the fibrillation tendancy and to regulate the water absorption properties of a cellulose shaped body, derived from a dissolution of cellulose in a tertiary amine oxide. The linear synthetic polymer may be a polyalkylene, a polyalkylene glycol or a polyacrylate or polymetacrylate or its copolymers with other monomers.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: June 12, 2001
    Assignee: Akzo Nobel Surface Chemistry AB
    Inventors: Anders Cassel, Bogumil Laszkiewicz, Zbigniew Lewandowski, Barbara Niekraszewicz, Piotr Kulpinski
  • Patent number: 6048917
    Abstract: The invention relates to a bonded nonwoven fiber fabric and packaging films strengthened with such a fabric, especially sausage casings based on celluloses. The nonwoven fiber fabric itself can be used as teabag paper. Bonding is achieved through treatment of a solution comprising cellulose, N-methylmorpholime-N-oxide and water. Bonding can be strengthened by a polyamine polyamide epichlorohydrin resin added to the fibrous pulp.
    Type: Grant
    Filed: March 16, 1999
    Date of Patent: April 11, 2000
    Assignee: Kalle Nalo GmbH & Co. KG
    Inventors: Klaus-Dieter Hammer, Gerhard Grolig
  • Patent number: 6020405
    Abstract: Phase change (hot melt) ink compositions for use in a phase change (hot melt) ink jet recording device are disclosed to comprise:(a) from about 0.1% to about 30% of one or more colorants; and(b) from about 0.1 to about 99.9% of one or more reversibly-crosslinked-polymers.Recording is conducted by thermally melting the ink at a temperature above ambient temperature (20.degree. C.) to provide prints that possess high quality images, scratch resistance, abrasion resistance, low-temperature storage stability and flexibility, offset and pick resistance, adhesion, and other desired properties. Components other than those listed above may be included in the ink compositions to achieve specific printer, substrate, or end use requirements. Furthermore, the present invention also includes methods for the preparation of the above-described inks.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: February 1, 2000
    Assignee: Westvaco Corporation
    Inventors: Michael D. Matzinger, Robert P. Rodebaugh
  • Patent number: 6007610
    Abstract: Phase change (hot melt) ink compositions for use in a phase change (hot melt) ink jet recording device in which recording is conducted by thermally melting the ink at a temperature above ambient temperature (20.degree. C.) to provide prints that possess high quality images, scratch resistance, abrasion resistance, low-temperature storage stability and flexibility, offset and pick resistance, adhesion, and other desired properties are disclosed to comprise:(a) from about 0.1% to about 30% of one or more colorants; and(b) from about 0.1 to about 99.9% of one or more reversibly-crosslinked-polymers. Components other than those listed above may be included in the ink compositions to achieve specific printer, substrate, or end use requirements. Also, the present invention also includes methods for the preparation of reversibly-crosslinked-polymers and for their use in the above-described inks. Furthermore, the disclosed phase change inks inhibit corrosion of metallic internal printer parts.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: December 28, 1999
    Assignee: Westvaco Corporation
    Inventors: Michael D. Matzinger, Robert P. Rodebaugh
  • Patent number: 6001904
    Abstract: Phase change (hot melt) ink compositions for use in a phase change (hot melt) ink jet recording device in which recording is conducted by thermally melting the ink at a temperature above ambient temperature (20.degree. C.) to provide prints that possess high quality images, scratch resistance, abrasion resistance, low-temperature storage stability and flexibility, offset and pick resistance, adhesion, and other desired properties are disclosed to comprise:(a) from about 0.1% to about 30% of one or more colorants; and(b) from about 0.1 to about 99.9% of one or more reversibly-crosslinked-polymers.Components other than those listed above may be included in the ink compositions to achieve specific printer, substrate, or end use requirements. Furthermore, the present invention also includes methods for the preparation of reversibly-crosslinked-polymers and for their use in the above-described inks.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: December 14, 1999
    Assignee: Westvaco Corporation
    Inventors: Michael D. Matzinger, Robert P. Rodebaugh
  • Patent number: 5973036
    Abstract: Phase-change (hot melt) ink compositions for use in a phase change (hot melt) ink jet recording device are disclosed to comprise:(a) from about 0.1% to about 30% of one or more colorants; and(b) from about 0.1 to about 99.9% of one or more reversibly-crosslinked-polymers.Recording is conducted by thermally melting the ink at a temperature above ambient temperature (20.degree. C.) to provide prints that possess high quality images, scratch resistance, abrasion resistance, low-temperature storage stability and flexibilty, offset and pick resistance, adhesion, and other desired properties. Components other than those listed above may be included in the ink compositions to achieve specific printer, substrate, or end use requirements. Furthermore, the present invention also includes methods for the preparation of reversibly-crosslinked-polymers and for their use in the above-described inks.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: October 26, 1999
    Assignee: Westvaco Corporation
    Inventors: Michael D. Matzinger, Robert P. Rodebaugh
  • Patent number: 5852066
    Abstract: A first object of the present invention is constituted by regenerated cellulose based materials, in particular those selected from cellular cellulose materials, fibers, filaments, sheets, textiles and non-woven materials. They contain an effective quantity of at least one chemical agent which improves the resistance of the material to bleach; the chemical agent containing in its structure at least one nitrogen atom .alpha. to a carbon atom and being fixed by at least one covalent bond to the cellulose lattice and/or being trapped in said lattice. Further objects are constituted by the use of chemical agents to improve the resistance to bleach of regenerated cellulose based materials, in particular sponges, and a process for the preparation of these materials.
    Type: Grant
    Filed: September 25, 1995
    Date of Patent: December 22, 1998
    Assignee: Financiere Elysees Balzac
    Inventors: Christophe Chalvin, Jerome Ducommun, Jean-Luc Wertz
  • Patent number: 5723522
    Abstract: The present invention relates to a plastic material which is modified with fiber fillers. Particularly thermoplastic material with melting point above 200 degrees Celsius are selected for this plastic material. As fiber fillers particularly cellulose fibers and/or modified cellulose fibers in practical concentrations of approximately 20% are used.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: March 3, 1998
    Assignee: Color Plastic Chemie, Albert Schleberger GmbH
    Inventor: Franz Bergmann
  • Patent number: 5698612
    Abstract: The present invention provides thermoplastically workable and completely biodegradable moulding compositions, a process for the preparation thereof and the use thereof as biodegradable materials for the production of, for example, injection-moulded parts, films, fibres or coatings.
    Type: Grant
    Filed: December 11, 1996
    Date of Patent: December 16, 1997
    Assignee: Bayer Akteingesellschaft
    Inventors: Joachim Simon, Hanns Peter Muller, Dirk Jacques Dijkstra, Jurgen Engelhardt, Volkhard Muller, Gunter Weber
  • Patent number: 5290830
    Abstract: Reinforced elastomeric articles, such as tires, wherein the reinforcement is reticulated bacterial cellulose are provided. Reticulated bacterial cellulose has an average diameter of about 0.1 micron and a substantially infinite aspect ratio. The reinforced article comprises about 2 phr to 10 phr of the cellulose reinforcement.
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: March 1, 1994
    Assignee: The Goodyear Tire and Rubber Company
    Inventors: William C. Tung, Deborah A. Tung, Douglas D. Callander, Richard G. Bauer
  • Patent number: 5264471
    Abstract: The invention relates to a process for the production of absorbers for water, aqueous solutions and body liquids, the absorbers consisting of at least two components A and B, whereby component A is at least a water-swellable synthetic polymer or copolymer, and component B is at least a natural or synthetic compound being present at normal temperature as a pourable powder which is highly or at least partially soluble, in water, or as a liquid. The present invention is characterized by the fact that component B is added in the form of a powder, a liquid or as a solution to component A during the end phase of the production process thereof after a polymer reaction degree of 90%, preferably 95% is attained, that is is mixed with the polymer gel of component A and, in order to obtain a powdery, pourable end product, is dried, if necessary, and ground.
    Type: Grant
    Filed: September 17, 1991
    Date of Patent: November 23, 1993
    Assignee: Chemische Fabrik Stockhausen GmbH
    Inventor: Miroslav Chmelir
  • Patent number: 5229439
    Abstract: According to the invention a moulding is produced by compression and extrusion at a temperature between 120.degree. and 160.degree. of a mixture of heat-setting resin and at the most 30% related to the total weight of mixture of a filler with a grain size between 50 micrometers and 4 mm. The filler is a mineral filler and/or natural fibres.
    Type: Grant
    Filed: May 8, 1992
    Date of Patent: July 20, 1993
    Assignee: L'Oreal
    Inventor: Jean-Louis H. Gueret
  • Patent number: 5221702
    Abstract: A composite paving block formed from desired proportions of asphalt, plastic such as polyethylene or phenolic resin, elastomeric material such as rubber or polyvinylchloride, and fibre material such as nylon or rayon, is disclosed. Recycled or reclaimed materials such as reclaimed asphalt, recycled polyethylene bottles, and recycled tires may be used. The materials are heated and blended together into a relatively uniform mixture of composite material. The composite material is further heated and is then molded into individual paving blocks, which exhibit a property of very high compressive strength.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: June 22, 1993
    Assignee: Enviropaver Inc.
    Inventor: Denis C. Richards
  • Patent number: 5166232
    Abstract: Blends of cellulose and a polyurethane (urea) have improved properties in relation to other cellulose blends and can be used as a biodegradable packaging material.
    Type: Grant
    Filed: March 18, 1991
    Date of Patent: November 24, 1992
    Assignee: Wolff Walsrode Aktiengesellschaft
    Inventors: Hanns-Peter Muller, Tillmann Hassel, Gunter Weber
  • Patent number: 5120776
    Abstract: Cellulosic fibers were pre-treated with maleic anhydride or phthalic anhydride in the presence of an intitiator to improve the bonding and dispersibility of the fibers in the polymer matrix. High density polyethylene (HDPE) was filled with chemically treated chemithermomechanical pulp (CTMP) and wood flour. Composites of HDPE-pre-treated wood fibers, characterized at different fiber ratios, produced superior mechanical properties than the untreated fiber composites. These composites can be compression or injection molded to produce useful articles.
    Type: Grant
    Filed: April 13, 1990
    Date of Patent: June 9, 1992
    Inventors: Govinda Raj, Bohuslav V. Kokta
  • Patent number: 5106888
    Abstract: Incorporation of 0.05 to 5 weight percent of a microcrystalline or fibrous cellulose having an average particle size of 100 microns or less and 0.05 to 4 weight percent of at least one co-stabilizer compound selected from the group consisting of polyamides and polymers or oligomers containing hydroxy groups into polyacetal molding compositions results in improved thermal stability of such compositions.
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: April 21, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Leonard E. R. Kosinski
  • Patent number: 5086096
    Abstract: Incorporation of 0.05 to 5 weight percent of certain microcrystalline or fibrous cellulose polymers into polyacetal molding compositions results in improved thermal stability for such compositions.
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: February 4, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Leonard E. R. Kosinski
  • Patent number: 5073581
    Abstract: Spinnable dopes containing fiber-forming polymers being at least about 55% and less than about 80% lyotropic polysaccharide and at least about 20 percent and less than about 45% thermally-consolidatable polymer and a process for making oriented, shaped articles of lyotropic polysaccharide/thermally-consolidatable polymer blends by orienting the dopes and removing the solvent.
    Type: Grant
    Filed: March 7, 1991
    Date of Patent: December 17, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Carmen A. Covelli, E. Renee Perusich
  • Patent number: 5008310
    Abstract: Polymer composites can be made from cellulosic & polymeric matrix, which may be thermoplastic or thermosetting, or rubber. The cellulosic material is grafted with isocyanate bonding agent and may be mixed with prebonded inorganic filler with a bonding agent. Furthermore, said bonded inorganic filler can be added to polymer composites filled with cellulosic fibers grafted with silylating agent. These polymer composites are useful for most plastic articles.
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: April 16, 1991
    Inventor: Alphons D. Beshay
  • Patent number: 5002984
    Abstract: A product is provided comprised of an open celled sponge of regenerated cellulose containing a polyamide polymer molecularly incorporated into the cellulosic cell wall material of the sponge. The product has the capability of absorbing metal ions from dilute aqueous solutions, and is particularly well suited for the absorption of aurocyanide from a cyanide leach solution as used in gold mining operations.
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: March 26, 1991
    Inventor: Norman B. Rainer
  • Patent number: 5002980
    Abstract: A method for selectively closing pores in a zone of greater permeability in a formation for profile control. A rehealable Xanthan biopolymer is combined with a crosslinked non-selective polyacrylamide polymer gel. The combined gel system is injected into a formation where the Xanthan biopolymer gel selectively enters a zone of greater permeability carrying therewith said non-selective gel. Once in the formation's zone of greater permeability, the gel reheals and forms a rigid gel with substantially better temperature stability.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: March 26, 1991
    Assignee: Mobil Oil Corporation
    Inventors: Craig H. Phelps, E. Thomas Strom
  • Patent number: 4946932
    Abstract: A method of preparing water-dispersed polymer blends, comprising the steps of:(i) preparing an aqueous polymerization mixture by adding to water, a sulfonate group-containing polyester or polyesteramide, one or more .alpha.,.beta.-unsaturated monomers and a polymerization initiator; and(ii) polymerizing said polymerization mixture to provide said water-dispersed polymer blend.Also disclosed is an aqueous dispersion of a polymer blend, comprising an aqueous dispersion having a solids content of about 30% to 65% of a polyester or polyesteramide blend comprising a sulfonate group-containing polyester or polyesteramide and a polymer comprising repeat units from one or more .alpha.,.beta.-unsaturated monomers.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: August 7, 1990
    Assignee: Eastman Kodak Company
    Inventor: Waylon L. Jenkins
  • Patent number: 4871791
    Abstract: The cellulose-based product, in particular in the form of a film, contains in its wall a primary, permanent plasticizer of one or more crosslinked copolymers made from at least two components. One or more of these components are monomer units containing a terminal, ethylenically unsaturated, polymerizable group or compounds of maleic acid, or fumaric acid. A further component comprises units containing thermally crosslinked groups made from N-methylolamides of unsaturated carboxylic acids. A process is furthermore described for the production of this shaped product, in which the copolymer is metered into the viscose, and the N-methylolamide groups are thermally crosslinked with the cellulose.
    Type: Grant
    Filed: April 5, 1988
    Date of Patent: October 3, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus-Dieter Hammer, Manfred Siebrecht, Hermann Winter
  • Patent number: 4820764
    Abstract: A sulfur curable elastomeric composition is shown which exhibits improved resistance to deformation in hot, high gas content environments, such as oil and gas wells. The composition includes a conjugated diolefin polymer rubber, a low molecular weight polubutadiene and a quantity of randomly oriented flocked fibers.
    Type: Grant
    Filed: June 6, 1988
    Date of Patent: April 11, 1989
    Assignee: Baker Hughes Incorporated
    Inventors: Ray L. Guzy, David W. Livingston
  • Patent number: 4769405
    Abstract: An aqueous silicone emulsion coating material has been developed with can be used to form a membrane with a decorative, uneven surface. The decorative surface is durable and waterproof. The coating material consists essentially of aqueous silicone emulsion which gives an elastomer upon removal of the water component, inorganic filler, and short, hydrophilic, organic fibers.
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: September 6, 1988
    Inventors: Hidetoshi Kondo, Taro Koshii, Toray Silicone Company, Ltd.
  • Patent number: 4767807
    Abstract: A coloring agent for the dope-dyeing viscose rayon, comprising minute spherical cured particles of an amino resin produced from formaldehyde and at least one amino compound selected from the group consisting of benzoguanamine, melamine, and urea and colored with a dye, a viscose composition containing the coloring agent, a viscose rayon obtained by spinning the composition, and a method for manufacture thereof.
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: August 30, 1988
    Assignee: Nippon Shokubai Kagaku Kogyo Co. Ltd.
    Inventors: Iwao Fujikawa, Mitsuo Kushino, Yasuhiro Yamamoto
  • Patent number: 4683270
    Abstract: The present invention relates to a polymeric composition which may be processed with increased scorch safety while retaining good physical properties. The composition of the invention comprises the combination of a specific retarder (vulcanization inhibitor) and at least one of two specific accelerators, and such composition prevents premature vulcanization of the chloroprene while it is being mixed and processed, yet provides excellent cure characteristics at the proper time, producing polymeric products with excellent dynamic properties.
    Type: Grant
    Filed: November 18, 1985
    Date of Patent: July 28, 1987
    Assignee: Dayco Products, Inc.
    Inventor: Gerald C. Hollaway, Jr.
  • Patent number: 4526838
    Abstract: A curable polyamino-bis-imide resin, obtained by the thermal reaction of:(A) a bis-imide represented by the general formula I: ##STR1## wherein R.sub.1 stands for a divalent organic group having a carbon-carbon double bond and R.sub.2 for a divalent aromatic organic group having 1 to 3 benzene rings, with(B) a diamine represented by the general formula II: ##STR2## wherein X stands for one member selected from the group consisting of O, S, SO.sub.2, CH.sub.2, CO, COO, C(CH.sub.3).sub.2, CF.sub.2 and C(CF.sub.3).sub.2, providing that the three X's may be identical or not identical to one another and the hydrogen atoms attached to the benzene rings may be substituted by an inactive alkyl group, perfluoroalkyl group or halogen atom, a solution thereof, cross-linked resins therefrom and laminated boards therefrom.
    Type: Grant
    Filed: September 6, 1983
    Date of Patent: July 2, 1985
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Atsushi Fujioka, Yasuo Miyadera, Tomio Fukuda
  • Patent number: 4399255
    Abstract: Alloy rayon fiber of regenerated cellulose and an at least partially neutralized copolymer of acrylic or methacrylic acid and a comonomer selected from an hydroxyalkyl (C.sub.2 -C.sub.6) ester of such acid or a styrenic monomer. The copolymer is present in an amount effective to increase the fluid holding capacity of the fiber. Masses of the fibers are useful as surgical dressings, tampons and other fluid-absorbing articles.
    Type: Grant
    Filed: September 10, 1982
    Date of Patent: August 16, 1983
    Assignees: Avtex Fibers Inc., Rohm & Haas Co.
    Inventors: Frederick R. Smith, Walter W. Toy, David Witiak
  • Patent number: 4352902
    Abstract: An emulsion composition which is the product of emulsion polymerization of a mixture of at least one radical-polymerizable unsaturated monomer and at least one cellulose derivative in the presence of a water-soluble resin having a graft-polymerizable unsaturated group in the side chain.
    Type: Grant
    Filed: January 7, 1981
    Date of Patent: October 5, 1982
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Yasuharu Nakayama, Hiroshi Iwai, Hajime Sukejima
  • Patent number: 4328136
    Abstract: A process for impregnating and reacting cellulose particles with oxidated silicon acid to produce lignin-cellulose-silicate and/or cellulose-silicate products impregnated with hydrated silica.
    Type: Grant
    Filed: June 22, 1981
    Date of Patent: May 4, 1982
    Inventor: David H. Blount
  • Patent number: RE31380
    Abstract: Rayon fibers made by spinning a viscose containing dissolved starch. Starch grains may be slurried in water, then made alkaline with NaOH to form a solution and then added to viscose.
    Type: Grant
    Filed: September 23, 1980
    Date of Patent: September 13, 1983
    Assignee: Avtex Fibers Inc.
    Inventor: Frederick R. Smith