Cellulosic Patents (Class 428/393)
  • Patent number: 4289824
    Abstract: Article of manufacture comprising alloy fibers having high fluid-holding capacity, the alloy fibers being comprised of a matrix of regenerated cellulose having carboxymethylcellulose uniformly dispersed therein, the latter being the sole additive for increasing the fluid holding capacity of the fibers.
    Type: Grant
    Filed: October 5, 1979
    Date of Patent: September 15, 1981
    Assignee: Avtex Fibers Inc.
    Inventor: Frederick R. Smith
  • Patent number: 4273118
    Abstract: Alloy fibers having high fluid-holding capacity, and a method for making the same, the alloy fibers being comprised of a matrix of regenerated cellulose having 5 to 25 weight percent of alkali metal salts of cellulose sulfate being dispersed therein. The sulfate salts may be present in combination with anionic polymer. The high fluid-holding capacity is at least 4.8 ml per grams as measured by the Demand Absorption Test.
    Type: Grant
    Filed: June 4, 1979
    Date of Patent: June 16, 1981
    Assignee: Avtex Fibers Inc.
    Inventor: Frederick R. Smith
  • Patent number: 4259403
    Abstract: An acid of the formula A--COOH).sub.x, or an anhydride thereof, wherein x is an integer of 1 or 2, wherein the acid groups are vicinal if x is 2, and A is phenyl, C.sub.2 -C.sub.10 alkylene, C.sub.2 -C.sub.10 alkenylene, C.sub.6 -C.sub.10 bridged or nonbridged cycloalkylene or cylcoalkenylene, with the proviso that A is C.sub.1 -C.sub.6 alkyl if x is 1, renders ethylene-propylene-nonconjugated diene elastomers more adherent to fibers that have been treated with a resorcinol-formaldehyde-latex dip when said elastomers are cured directly onto said fibers.
    Type: Grant
    Filed: January 16, 1979
    Date of Patent: March 31, 1981
    Assignee: Uniroyal, Inc.
    Inventor: Richard W. Tomlinson
  • Patent number: 4247596
    Abstract: Electrical conductors for use in microelectronic circuitry are prepared from a flexible, polymeric fiber selected from the group of flexible, polymeric fibers consisting of silk, polyacrylonitrile, regenerated cellulose, polyester, and polyamide. The selected fiber is made conductive by coating by a method wherein the fiber is immersed for a predetermined time period of from about 30 minutes to about 60 minutes in a solution prepared from equal portions of a silver nitrate-aqueous ammonia solution and a silver nitrate-potassium-sodium tartrate solution. These solutions coat the selected polymeric fiber with metallic silver. The excess solution is washed off and the coated fiber is air dried or dried in a low temperature oven at about 50.degree. C. The process is repeated if a heavier coating of silver on the fibers is desired for better conductivity. For use, the metallic silver coated fiber is cut to required length and tested for resistivity which should be near one ohm.
    Type: Grant
    Filed: May 10, 1979
    Date of Patent: January 27, 1981
    Inventor: Tin B. Yee
  • Patent number: 4246314
    Abstract: Glass fibers, either in the form of individual filaments or bundles of glass fibers, which have been coated with a chemically-modified asphalt prepared by reacting a bituminous material with an organo metallic compound in the form of an orthoester or an organo metallic boron compound. The coated fibers can be used as reinforcement for bitumen or bitumen plus aggregate to securely tie the glass fiber surfaces to the bitumen.
    Type: Grant
    Filed: June 13, 1979
    Date of Patent: January 20, 1981
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Alfred Marzocchi, Michael G. Roberts, Charles E. Bolen
  • Patent number: 4242405
    Abstract: High wet modulus viscose rayon fiber having a skin core structure and having a multi-lobular cross-section that imparts to fabrics an improved cover and hand properties similar to those of cotton. The fibers are formed from a modifier-free viscose. The elimination of the modifier reduces manufacturing costs and eliminates an environmental pollution problem created in the discharge of spinning baths containing modifiers.
    Type: Grant
    Filed: January 15, 1979
    Date of Patent: December 30, 1980
    Assignee: Avtex Fibers Inc.
    Inventor: Gregory C. Bockno
  • Patent number: 4215175
    Abstract: Ethylenically unsaturated blocked aromatic diisocyanates are prepared which readily polymerize to form homopolymers and interpolymers with copolymerizable vinylidene monomers. Polymers can be prepared via emulsion polymerization, and exhibit excellent stability to hydrolysis when stored in latex form. The polymers cure at temperatures as low as 80.degree. C., and under acidic, neutral, or basic pH conditions. Homopolymers and interpolymers of the defined diisocyanates are useful as adhesives, and interpolymers of the ethylenically unsaturated blocked aromatic diisocyanates with acrylate monomers are particularly useful as binders for nonwoven fibers.
    Type: Grant
    Filed: March 30, 1979
    Date of Patent: July 29, 1980
    Assignee: The B. F. Goodrich Company
    Inventor: Harold A Tucker
  • Patent number: 4210692
    Abstract: The present invention relates to a novel sheet adapted to be adhered to and form the outer layer of a wood article, said sheet being made from a furnish comprising, for each 100 parts by weight, from about 10 to 25 parts synthetic pulp, 10 to 25 parts by weight mineral fiber, 0.1 to 2 parts size, 0.1 to 2 parts wet strength agent, and 79.8 to 46 parts wood fiber and to laminates comprising a wood core and said sheet adhered to at least one surface of said core.
    Type: Grant
    Filed: November 17, 1978
    Date of Patent: July 1, 1980
    Assignee: Champion International Corporation
    Inventors: Reinhard D. Bohme, Robert O. Ragan
  • Patent number: 4204984
    Abstract: Rubber compounds are readily bonded to tire cords using a dip process in which the dip contains an alkaline aqueous dispersion of a mixture of a major amount by weight of a rubbery carboxylated conjugated diene copolymer and a minor amount of a lignin amine formaldehyde reaction product.
    Type: Grant
    Filed: October 17, 1977
    Date of Patent: May 27, 1980
    Assignee: The General Tire & Rubber Company
    Inventor: Terry C. Neubert
  • Patent number: 4204982
    Abstract: Rubber compounds are readily bonded to tire cords using a dip process in which the dip contains an alkaline aqueous dispersion of a mixture of a major amount by weight of a rubbery carboxylated conjugated diene copolymer and a minor amount of a lignin amine formaldehyde reaction product.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: May 27, 1980
    Assignee: The General Tire & Rubber Company
    Inventor: Terry C. Neubert
  • Patent number: 4197350
    Abstract: Quaternized amine-amide condensation products which are obtained by condensation of an amine of the formulaR.sub.1 R.sub.2 N--(CH.sub.2).sub.n --NH.sub.2with a lower alkanecarboxylic acid, and subsequent quaternization with a trialkyl phosphate. These products are suitable as fiber preparation agents.
    Type: Grant
    Filed: October 19, 1978
    Date of Patent: April 8, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rolf Kleber, Wolfgang Wagemann
  • Patent number: 4194940
    Abstract: Thermoplastic elastomeric materials are bonded to a variety of substrates over a broad range of temperatures and pressure by employing an adhesive system comprising thermoplastic polyether urethane.
    Type: Grant
    Filed: August 4, 1978
    Date of Patent: March 25, 1980
    Assignee: Lord Corporation
    Inventors: Dennis J. Damico, Brian Martin
  • Patent number: 4186238
    Abstract: This invention relates to a hydrophilic shaped article of a water-insoluble polymer selected from the group consisting of regenerated cellulose, cellulose ether, cellulose ester and polyalkylene, and capable of forming fibers and films, said article containing amorphous particles of an originally water-soluble cellulose ether prepared from natural cellulose and rendered by chemical modification at least partly water-insoluble while remaining water-absorbent.
    Type: Grant
    Filed: September 30, 1977
    Date of Patent: January 29, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Arno Holst, Michael Kostrzewa, Helmut Lask
  • Patent number: 4174418
    Abstract: Bacteriostatic, water-insoluble complexes of zirconyl acetate with inorganic peroxides are disclosed. Peroxides operative in forming these complexes are hydrogen peroxide, alkali metal perborates and alkali metal peroxydiphosphates. Processes for in situ formation and deposition of the insoluble complexes on the surfaces of cellulosic textiles are described. The textile finishes so produced inhibit the growth and spreading of odor- and infection-producing gram-negative and gram-positive bacteria on the treated textiles. The antibacterial activity imparted to the textiles is durable to repeated laundering.
    Type: Grant
    Filed: May 31, 1978
    Date of Patent: November 13, 1979
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Clark M. Welch, Gary F. Danna, Tyrone L. Vigo
  • Patent number: 4148963
    Abstract: The present invention relates to an adhesive-coating composition for increasing the adhesion of heat-stable, high-modulus, modal, polyester-based yarns and glass fibres towards compounded rubbers based on natural rubber and on synthetic rubber, said composition comprising a solution of a precondensed resorcinol/formaldehyde resin, a latex based on vinylpyridine and polychloroprene latex, 28% strength ammonium hydroxide and a dicarboxylated butadiene/styrene resin. Yarns and fibres coated with the adhesive-coating composition of the invention are useful in the manufacture of tires, conveyors, conveyor belts, hoses and the like.
    Type: Grant
    Filed: August 2, 1977
    Date of Patent: April 10, 1979
    Assignee: Rhone-Poulenc-Textile
    Inventors: Paul Bourrain, Pierre Giroud
  • Patent number: 4137358
    Abstract: Adhesive-coated tire cord fabric and similar fabric and single end cords for other end uses can be protected from the adverse effects of exposure to the products of combustion present in fuel oil- or kerosene-fired dryers and curing ovens as well as to atmospheric oxidation, prior to the adhesion of such fabrics to rubber, by incorporating a hydrocarbon wax which is a microcrystalline wax or a Fischer-Tropsch wax in the adhesive formulation.
    Type: Grant
    Filed: June 10, 1976
    Date of Patent: January 30, 1979
    Assignee: Uniroyal, Inc.
    Inventor: Roy E. Hartz
  • Patent number: 4135034
    Abstract: A flame-retardant yarn or thread containing a flame-retardant lubricant which consists of one or more mono- or di-chloro alkanes or one or more mono- or di-bromo alkanes, wherein the alkanes have ten to thirty carbon atoms.
    Type: Grant
    Filed: June 1, 1977
    Date of Patent: January 16, 1979
    Assignee: Dixie Yarns, Inc.
    Inventor: Jefferson L. Claiborne
  • Patent number: 4133937
    Abstract: Soluble, curable triazine polymers are prepared by first polymerizing an aliphatic nitrile at a temperature of about 80 to about 450.degree. C in the presence of a catalyst such as a metal chloride to form a B-stage polymer, treating the B-stage polymer with a solvent such as diethyl ether to remove unreacted nitrile and finally extracting the soluble, curable triazine polymer from the thus-treated B-stage material with an alcohol, such as methanol. On heating, the soluble triazine polymers can be cured to form thermally-stable, insoluble, infusible polymeric materials.
    Type: Grant
    Filed: September 7, 1977
    Date of Patent: January 9, 1979
    Assignee: Texaco Inc.
    Inventor: Gordon H. Miller
  • Patent number: 4122235
    Abstract: The invention relates to a resin binder composition comprising, in combination, a resole resin and a metal salt curing accelerator providing a binder composition that has an improved cure rate in electrical grade laminates without adversely affecting electrical properties. The binder composition provides low viscosity for impregnation and accelerated curing rates for advancing the impregnated substrate prior to laminating and final curing.
    Type: Grant
    Filed: February 25, 1977
    Date of Patent: October 24, 1978
    Assignee: Monsanto Company
    Inventor: Ronald H. Dahms
  • Patent number: 4107373
    Abstract: Cellulosic materials such as paper, wood, cotton, rayon and the like are rendered flame retardant by the intimate association therewith of an effective flame retardant amount of a reaction product of aqueous solution of sulfamic acid and an alkylene oxide e.g., ethylene oxide. Amounts of said reaction product of at least, and preferably in excess of, 0.5 percent by weight are generally effective to render the cellulosic material flame retardant. Preferably the reaction product is rendered neutral before or after application to the cellulosic material in order that the material be rendered noncorrosive and nonirritating in nature.
    Type: Grant
    Filed: December 30, 1975
    Date of Patent: August 15, 1978
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventor: George T. Miller
  • Patent number: 4096312
    Abstract: Process for the transformation of comminuted cellulose ether, which has been rendered at least largely water-insoluble by modification but is still highly swellable with water, into an easily workable material, comprising wetting a hydrophilic support web, applying the comminuted modified cellulose ether to the wetted web, and drying. This invention also relates to an apparatus for performing the process.
    Type: Grant
    Filed: July 28, 1976
    Date of Patent: June 20, 1978
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Arno Holst, Helmut Lask
  • Patent number: 4074724
    Abstract: Tobacco smoke filter rods made with fibers selected from cellulose acetate, poly(ethylene terephthalate) and poly(hexamethylene adipamide) bonded with water and glycol bonding dispersions comprising water, high boiling glycols selected from 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,2-butanediol and 1,3-butanediol; and water and glycol dispersible polyester polymers. The polymer is present in the amount of about 5 to 40% by weight of the dispersion and preferably about 15 to 35% by weight, and is selected from polyesters of combinations of isophthalic acid and the sodium, potassium, or lithium salt of sulfoisophthalic acid reacted with diethylene glycol or triethylene glycol; and from terephthalic acid and the sodium, potassium or lithium salt of sulfoisophthalic acid reacted with diethylene glycol or triethylene glycol. The water and selected glycol(s) serve as a carrier or dispersion medium for the selected water and glycol dispersible polymer. The dispersions contain from about 0.
    Type: Grant
    Filed: November 5, 1976
    Date of Patent: February 21, 1978
    Assignee: Eastman Kodak Company
    Inventors: Gerald P. Morie, Cephas H. Sloan
  • Patent number: 4063558
    Abstract: Method for making alloy fibers having high fluid-holding capacity, the alloy fibers being comprised of a matrix of regenerated cellulose having alkali metal salts of alginic acid uniformly dispersed therein.
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: December 20, 1977
    Assignee: Avtex Fibers Inc.
    Inventor: Frederick R. Smith
  • Patent number: 4054715
    Abstract: A flame-retardant yarn or thread containing a flame-retardant lubricant which consists of one or more mono- or di-chloro alkanes or one or more mono- or di-bromo alkanes, wherein the alkanes have ten to 30 carbon atoms.
    Type: Grant
    Filed: February 11, 1976
    Date of Patent: October 18, 1977
    Assignee: Dixie Yarns, Inc.
    Inventor: Jefferson Lyle Claiborne
  • Patent number: 4048371
    Abstract: Fasces fibers consisting of fascicles of filaments bonded together at joints are disclosed. The joints may be focal or may be dispersed through the fiber fascicles in a statistical or predetermined pattern. The fascicles may be composed of the same type of fiber or from a mixture of different fibers. In one embodiment the fiber fascicle may contain coarser high tensile strength fiber(s), termed leader fiber(s), which is (are) accompanied and bonded to a group of slender fibers termed the satellite fibers. The latter fibers may provide properties that may be lacking in the mechanically strong leader fiber. These properties for example may include those of texture, softness, resiliency, bulk, insulation, moisture absorption, color and luster, antistatic properties and flame retardancy. The division of variables of fiber characteristics is a valuable feature of the present invention. Another feature of this invention is the ability to control the virtual volume which the composite faces fiber commands.
    Type: Grant
    Filed: October 17, 1974
    Date of Patent: September 13, 1977
    Assignee: Ingrip Fasteners, Inc.
    Inventor: George Brumlik
  • Patent number: 4031288
    Abstract: The bonding of tire cord to rubber is improved by first treating the surface of the tire cord with a solvent solution of a polyisocyanate in essentially small amounts and then treating the cord with an adhesive comprising a phenol/aldehyde resin, a phenol aldehyde resin blocked polyisocyanate and a rubber latex.
    Type: Grant
    Filed: June 18, 1975
    Date of Patent: June 21, 1977
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Roop S. Bhakuni, Grover W. Rye
  • Patent number: 4007305
    Abstract: Textile materials are treated with an alkaline aqueous medium having a pH value of 7.5-11 and containing 0.25-4% by weight of a dissolved water soluble hydrophilic soil release polymer having carboxylic acid groups and 0.05-1% by weight of a dispersed hydrophobic soil repellent fluorochemical. The soil release polymer and the soil repellent fluorochemical are deposited on the surfaces of the textile fibers and the resulting textile material is dried to impart the desired nondurable soil release and soil repellency properties. The aqueous medium also may contain polyvinylpyrrolidone to further improve the finish. In a preferred variant, the textile material is first contacted with an alkaline aqueous solution of the soil release polymer, and thereafter with an alkaline aqueous medium containing the dispersed soil repellent fluorochemical to reduce the tendency of the deposited soil release polymer to cover the deposited soil repellent fluorochemical molecules.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: February 8, 1977
    Assignee: BASF Wyandotte Corporation
    Inventors: Sarwan K. Kakar, Frank R. Kappler, Gilbert S. Gomes, John J. Cramer
  • Patent number: 3997647
    Abstract: Chemically modified cellulose fibers such as those which have been subjected to phosphorylation or carboxymethylation or to polymer grafting-hydrolysis are refined in the presence of water, centrifuged to remove unbound water and extruded into filaments. The individual fibers are identifiable within the filaments and are generally aligned parallel to the filament axis. Certain embodiments of the filaments are highly absorbent, have fast wicking rates, and may be self-bonded to form integral nonwoven webs for use in disposable diapers, sanitary products, wipes and the like.
    Type: Grant
    Filed: February 24, 1975
    Date of Patent: December 14, 1976
    Assignee: Kimberly-Clark Corporation
    Inventor: Frederick O. Lassen
  • Patent number: 3993830
    Abstract: A composition for applying a non-permanent soil-release finish to fabrics from dilute solution comprising a polycarboxylate polymer having an acid equivalent weight of from about 110 to 175, and a water-soluble salt of a polyvalent metal. A preferred polymer is derived from an ethylenically unsaturated monocarboxylic acid and an alkyl acrylate. The composition is particularly useful for applying a soil-release finish in the rinse cycle of a home laundry process.
    Type: Grant
    Filed: October 23, 1973
    Date of Patent: November 23, 1976
    Assignee: Colgate-Palmolive Company
    Inventors: Robert E. Dickson, Stanley M. Barkin
  • Patent number: 3984594
    Abstract: A sized cellulosic fiber-containing yarn having an excellent weaving property and processing property is provided by sizing, in a non-aqueous medium, with a copolymer prepared by copolymerizing 20 to 80% by weight of at least one monomer selected from the group consisting of methyl methacrylate, styrene and acrylonitrile and 80 to 20% by weight of at least one monomer selected from the group consisting of acrylic esters of aliphatic alcohols having 1 to 8 carbon atoms and methacrylic esters of aliphatic alcohols having 4 to 8 carbon atoms, and removing the non-aqueous medium from the yarn, the copolymer having a glass transition temperature of 40.degree. to 80.degree.C and a Young's modulus of 1 .times. 10.sup.3 to 1 .times. 10.sup.4 kg/cm.sup.2.
    Type: Grant
    Filed: August 23, 1974
    Date of Patent: October 5, 1976
    Assignee: Kanebo, Ltd.
    Inventors: Junzi Sano, Kiyoshi Aoki, Syoso Makino
  • Patent number: 3983288
    Abstract: Quaternary salts having a pyrido-[1,2-a]-indole nucleus are useful optical brightening agents for synthetic and natural fibers and fabrics. The quaternary salts are especially useful optical brighteners for paper and acrylic fibers.
    Type: Grant
    Filed: November 4, 1974
    Date of Patent: September 28, 1976
    Assignee: Eastman Kodak Company
    Inventor: Derek D. Chapman
  • Patent number: 3979544
    Abstract: Flock of synthetic fibers, especially of polyamide fibers, suitable for electrostatic flocking, and containing a certain amount of mineral tanning agents.
    Type: Grant
    Filed: June 9, 1975
    Date of Patent: September 7, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Joachim Kolbe, Otto Schneider, Ernst Gutschik, Dieter Brokmeier
  • Patent number: 3979545
    Abstract: The flame resistance of synthetic fibers and solid polymers are improved by treatment with a halogen containing amide having the formula ##EQU1## wherein R is lower alkoxy; lower alkoxy carbonyl; ##EQU2## X is chlorine or bromine; m is 0 or 1; n is 1-6; and y is 1-13.
    Type: Grant
    Filed: September 12, 1974
    Date of Patent: September 7, 1976
    Assignee: National Distillers and Chemical Corporation
    Inventors: Harry Braus, Jay R. Woltermann
  • Patent number: 3959556
    Abstract: Antimicrobial properties are imparted to naturally occurring fibers, such as cotton fibers and fabrics, by intimately admixing the naturally occurring fibers with synthetic fibers prepared by extruding a spinnable solution of a synthetic thermoplastic resin and at least 0.1% by weight of an antimicrobial agent into a strand having a denier of 1.5-60 dpf. The synthetic fibers are characterized by the antimicrobial agent therein migrating to the fiber surface to form a coating thereon and then transferring to the naturally occurring fibers by physical contact as the amount of antimicrobial agent on the surface of the naturally occurring fibers diminishes. Additional antimicrobial agent then migrates to the surface of the synthetic fiber until equilibrium is re-established.
    Type: Grant
    Filed: July 2, 1974
    Date of Patent: May 25, 1976
    Inventor: Willard L. Morrison
  • Patent number: 3955028
    Abstract: Compounds of the formula:[(BrCH.sub.2).sub.3 CCH.sub.2 O].sub.2 P(O)Rwherein R is a functional group selected from the group consisting of --CH=CH.sub.2, --CH.sub.2 X, --OR'OC(O)CH=CH.sub.2, --OR'OC(O)C(CH.sub.3)=CH.sub.2, --O(R'O).sub.n H, --OH, --Cl, and NR"R'", wherein R' is a C.sub.1 -C.sub.4 alkylene group, wherein R" and R'" are the same or different and are selected from the group consisting of hydrogen, lower alkyl, e.g. C.sub.1 -C.sub.8, preferably C.sub.1 -C.sub.4, phenyl, hydroxyalkyl, e.g., hydroxy C.sub.1 -C.sub.8, or, preferably hydroxy C.sub.1 -C.sub.4, and allyl groups, wherein X is selected from the group consisting of chlorine and bromine and wherein n is an integer between 1 and 20 are disclosed. These compounds have flame retardancy characteristics and are useful either as flame retardant additives or as reactive flame retardants which can react to confer durable flame retardancy on textiles or other polymer products.
    Type: Grant
    Filed: July 18, 1974
    Date of Patent: May 4, 1976
    Assignee: Stauffer Chemical Company
    Inventor: Edward D. Weil
  • Patent number: 3941856
    Abstract: Compositions for surface treatments to give lower release values comprising 100 parts by weight of a hydroxy-containing diorganopolysiloxane, 1 to 20 parts by weight of an organohydrogenpolysiloxane, 0.05 to less than 20 parts by weight of an aminoalkoxy silicon compound, 1 to 20 parts by weight of an organotin compound and, if desired, up to 10 parts by weight of a non-amino-containing alkoxy silicon compound.
    Type: Grant
    Filed: January 29, 1974
    Date of Patent: March 2, 1976
    Assignee: Imperial Chemical Industries Limited
    Inventors: Norman Geoffrey Creasey, Leslie Clark Pike