Cellulose Derivative Patents (Class 524/31)
  • Patent number: 4833201
    Abstract: The polymerization of acetylene in the presence of polymers using certain nickel catalysts results in polyacetylene-containing polymer products which are readily processed while retaining their electrical properties.
    Type: Grant
    Filed: January 12, 1988
    Date of Patent: May 23, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: K. H. Aleksander Ostoja Starzewski, Josef Witte
  • Patent number: 4804695
    Abstract: Methods for producing spray cellulosic insulation and for wet spray open cavity installation of such material. Processed cellulosic fibers are moistened with an expansion agent, preferably comprising water with a wetting agent mixed therein. For installation, a composition preferably comprising an adhesive and a wetting agent in water is used to moisten the material as it is blown into place.
    Type: Grant
    Filed: September 3, 1987
    Date of Patent: February 14, 1989
    Assignee: Western Fibers, Inc.
    Inventor: Paul H. Horton
  • Patent number: 4772646
    Abstract: The present invention relates to a liquid suspension of a high molecular weight, water-soluble polymer or water-soluble salt prepared by admixing and water-soluble polymer with a hydrocarbon carrier fluid and a suspending agent comprising an aqueous emulsion of a copolymer comprising a water-insoluble and substantially hydrocarbon-insoluble polymer consisting of particles having a dry weight average particle size of below 10 .mu.m and which is formed from monomers of which 80% to 100% are hydrophobic, 30 to 100% are polar and 0% to 20% are hydrophilic. More particularly, the copolymer comprises from about 80% to about 100% C.sub.1-30 alkyl methacrylate monomers and from about 0% to about 20% hydrophilic monomers. Preferably, the copolymer comprises 90% to 100% 2-ethylhexylacrylate and from about 0.5% to about 10% acrylic acid. The liquid suspension is capable of supporting about 5 pounds of water-soluble polymer per gallon of suspension.
    Type: Grant
    Filed: November 17, 1986
    Date of Patent: September 20, 1988
    Assignee: Halliburton Company
    Inventors: Weldon M. Harms, Lewis R. Norman
  • Patent number: 4769422
    Abstract: The polymerization of acetylene in the presence of polymers using certain nickel catalysts results in polyacetylene-containing polymer products which are readily processed while retaining their electrical properties.
    Type: Grant
    Filed: July 3, 1986
    Date of Patent: September 6, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: K. H. Aleksander O. Starzewski, Josef Witte
  • Patent number: 4764548
    Abstract: Adhesive dispersions for tiling, based on(1) 10-95% by weight of a water-dilutable, cellulose nitrate-containing paste with a weight ratio of solids to solvent .gtoreq.1,(2) 0.1-50% by weight of an adhesive resin dispersion or an adhesive resin which can be emulsified in H.sub.2 O,(3) 0-70% by weight of a tile adhesive filler,(4) 0-75% by weight of water,(5) 0-10% by weight of a conventional thickener.
    Type: Grant
    Filed: November 6, 1987
    Date of Patent: August 16, 1988
    Assignee: Wolff Walsrode Aktiengesellschaft
    Inventors: Lutz Hoppe, Erhard Luhmann, Frank Hohl, Eugen Reinhardt
  • Patent number: 4749731
    Abstract: A process of forming a durable waterproof coating on a substrate comprising (a) applying to the surface of the substrate an aqueous dispersion comprising at least one film-forming polymer, pigment material including clay in an amount sufficient to improve the adhesion of the coating to the substrate, and water, the pigment volume concentration of the dispersion being greater than 15, and (b) allowing the dispersion to dry on the surface.
    Type: Grant
    Filed: April 14, 1986
    Date of Patent: June 7, 1988
    Assignee: The Celotex Corporation
    Inventors: Stanley C. Kyminas, John C. Phillips, Bernard J. Einhaus
  • Patent number: 4748166
    Abstract: Storage stable, water-free, RTV organopolysiloxane adhesives curable in the presence of water or atmospheric moisture, and comprising a dihydroxydiorganopolysiloxane polymer, fillers, an amine fraction and a curing catalyst, are characterized by incorporation therein of a polyalkoxylated organosilane having the formula:R'.sub.x Si[(OCH.sub.2 CH.sub.2).sub.p OCH.sub.3 ].sub.4-xwherein R' is methyl, vinyl, allyl, methallyl or phenyl, and p and x are each one or two.
    Type: Grant
    Filed: May 28, 1986
    Date of Patent: May 31, 1988
    Assignee: Rhone-Poulenc Industries
    Inventors: Alain Gautier, Bernard Laisney, Michel Letoffe
  • Patent number: 4726845
    Abstract: A writing ink composition having a pseudoplasticity index value between about 0.02 and 0.18, a low-shear viscosity between about 25,000 and 120,000 cP, and a high-shear viscosity between about 6 and 26 cP can be used in a hybrid, ball-point marking instrument which combines advantageous features of both paste-ink and liquid-ink ballpens. The writing ink can be prepared using a colloid milling procedure.
    Type: Grant
    Filed: June 4, 1986
    Date of Patent: February 23, 1988
    Assignee: Parker Pen (Benelux) B.V.
    Inventors: John Thompson, Philip Wallis
  • Patent number: 4696958
    Abstract: An electrophoretic gel which, when used in an electrophoretic process for the separating chylomicrons, beta lipoproteins, pre-beta lipoproteins, and alpha lipoproteins, enables the separation of the alpha lipoprotein band from the faster moving free fatty acid albumin band. The electrophoretic gel comprises a matrix selected from the group consisting of polysaccharides and derivatives thereof, a buffer having a buffering capacity in an alkaline pH range, and an effective amount of a poly(oxyethylene)-poly(oxypropylene)-poly(oxyethylene) block copolymer.An improved electrophoretic technique characterized in that the above electrophoretic gel is employed therein.
    Type: Grant
    Filed: November 22, 1985
    Date of Patent: September 29, 1987
    Assignee: Beckman Instruments, Inc.
    Inventor: William A. Gurske
  • Patent number: 4624900
    Abstract: Storage-stable, aqueous polysiloxane emulsions well adopted as coating compositions to impart anti-adhesiveness/water-repellency to a wide variety of substrates, e.g., paper, are comprised of an anti-adhesive/water-repellency effective amount of (A) diorganopolysiloxane oil having the formula:HO(SiR.sub.2 O).sub.n Hwherein the symbols R, which may be identical or different, are each an alkyl radical containing from 1 to 3 carbon atoms, the 3,3,3-tri-fluoropropyl radical, or the vinyl radical, at least 50% of the radicals R being methyl radicals and at most 5% vinyl radicals, and the symbol n is any number, the value of which is such that the viscosity of the oil ranges from 500 to 50,000 mPa.s at 25.degree. C.; (B) an organopolysiloxane resin comprising recurring units selected from among those of the formulae R'SiO.sub.1.5, R'.sub.2 SiO and R'.sub.3 SiO.sub.0.
    Type: Grant
    Filed: June 12, 1985
    Date of Patent: November 25, 1986
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventor: Alain Fau
  • Patent number: 4565841
    Abstract: A spirit duplicating master ink contains more than 50 weight % of methyl violet, a binder of poly(vinyl methyl ether) that is of the order of 5 weight % and a 2-ethoxy-ethanol carrier solution of the order of 30 weight % with corn starch filler of the order of 10 weight %. This ink is printed upon a spirit duplicating master to leave a residue with the methyl violet weight % of the order of 73%, that of the 2-ethoxy-ethanol of the order of 7% and that of the corn starch of the order of 20%.
    Type: Grant
    Filed: September 10, 1979
    Date of Patent: January 21, 1986
    Assignee: The Nimrod Press, Inc.
    Inventor: Curt Thies
  • Patent number: 4556683
    Abstract: A pigment dispersing resin which essentially consists of a modified polymer obtained by introducing at least one of acidic groups and basic groups into a polymeric polyol of star-shaped structure prepared by reacting a polyol having at least four hydroxyl groups per molecule with an epoxide, the resin being compatible with pigments and vehicle resins, and a pigment dispersed paste which comprises the pigment dispersing resin and a pigment, the pigment dispersed paste being low in viscosity over a long period of time.
    Type: Grant
    Filed: August 18, 1983
    Date of Patent: December 3, 1985
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Yoji Hirasawa, Shoji Ikeda
  • Patent number: 4551491
    Abstract: A coating composition is described comprising a thermoplastic or thermosetting resin material containing a pigment composition. The pigment composition contains about 5 to about 90% iron oxide encapsulated mica particles. When used in a multi-coat coating process as a basecoat overcoated with a transparent overcoat, an article is produced which not only produces improved pearlescent color effects, but is stable to the elements as well.
    Type: Grant
    Filed: December 7, 1984
    Date of Patent: November 5, 1985
    Assignee: Inmont Corporation
    Inventor: Sol Panush
  • Patent number: 4547542
    Abstract: This invention relates to unique and novel compositions based on chemically combining a sulfonated polymer and an amine terminated polylactone composition. The resulting amine neutralized sulfonated polymer compositions have a variety of uses including those as diverse as adhesive agents, thermoplastic elastomers, additive uses wherein these materials can be utilized to compatibilize two different polymers which are normally incompatible. These compositions can also be blended with fillers and/or oils when the sulfonated polymer is elastomeric. The materials display thermoplastic character.
    Type: Grant
    Filed: December 23, 1983
    Date of Patent: October 15, 1985
    Assignee: Exxon Research and Engineering Co.
    Inventors: Robert D. Lundberg, Warren A. Thaler
  • Patent number: 4546133
    Abstract: Compositions and methods are provided for forming a coated wood product having the appearance and texture of wood grain, which conceals joints on the wood surface and which is capable of accepting conventional wood stain.
    Type: Grant
    Filed: December 30, 1983
    Date of Patent: October 8, 1985
    Assignee: DG Shelter Products
    Inventor: Carroll W. Cope
  • Patent number: 4526913
    Abstract: A polymeric coating composition containing nitrocellulose, an acrylate copolymer, a prepolymer from a dimer diisocyanate and a difunctional monomer with an active hydrogen in each group, and a diamine. Solvents may include isopropyl alcohol, ethyl acetate, and toluene. Optionally there may be included a second copolymer from a sulfinamide and formaldehyde and/or a plasticizer. A dried coating from this composition is selectively strippable from a substrate as a cohesive film upon application of a remover solution containing acetone, isopropyl alcohol and water.
    Type: Grant
    Filed: January 13, 1984
    Date of Patent: July 2, 1985
    Assignee: J. H. Diamond Company
    Inventors: David S. Winkler, Jeffrey H. Diamond
  • Patent number: 4517324
    Abstract: A viscous cellulose substance containing paste which is characterized by containing an alkoxylated plasticizer and a ratio of solid to the organic solvent phase of .gtoreq.1 and which can be used to prepare a lacquer consisting at most of 25% of an organic solvent.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: May 14, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Erhard Luhmann, Lutz Hoppe, Klaus Szablikowski, Friedrich-Karl Lampert
  • Patent number: 4506045
    Abstract: Thermoplastic moulding compositions consisting of from 1 to 99% by weight of at least one cellulose ester or cellulose mixed ester, from 99 to 1% by weight of an aliphatic polyester or polyether containing carbonate groups and, optionally, standard auxiliaries and additives.
    Type: Grant
    Filed: September 14, 1983
    Date of Patent: March 19, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Helmut Waniczek, Christian Lindner, Carlhans Suling, Herbert Bartl, Walter Uerdingen
  • Patent number: 4476257
    Abstract: A magnetic coating composition used for producing magnetic recording media is disclosed. The composition is comprised of partially oxidized nitrocellulose and magnetic fine powder or magnetic metal fine powder. The composition may also include a synthetic resin binder. The partially oxidized nitrocellulose has a nitrogen content of 8.0 to 12.5% and contains 2.0 to 100 mmol of carboxyl group per 100 g of nitrocellulose. Use of the partically oxidized nitrocellulose gives increased ability to disperse the magnetic powder within the composition and does not adversely effect the adhesion between the composition and the support.
    Type: Grant
    Filed: February 24, 1983
    Date of Patent: October 9, 1984
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Teiichi Ishino, Ikuo Ueda, Rikiya Kai
  • Patent number: 4460411
    Abstract: A nitrocellulose composition in the form of chips containing 50 to 80 wt % of nitrocellulose and less than 1 wt % of water is produced by adding to water-wetted nitrocellulose an organic solvent which dissolves nitrocellulose and polyurethane resin and is inert to isocyanate in an amount of 30 to 300 parts by weight based on 100 parts by weight of dry nitrocellulose, mixing, rolling or extrusion molding, drying at 30.degree. to 55.degree. C., and cutting. This composition is useful as nitrocellulose for magnetic tape binder.
    Type: Grant
    Filed: December 1, 1982
    Date of Patent: July 17, 1984
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Etsuo Ohtake, Akihiko Higuchi
  • Patent number: 4434259
    Abstract: Improved base coatings for use on paper substrates to be vacuum metallized consist essentially of an organic solvent solution (e.g. ethyl acetate or ethyl acetate/toluene) containing about 10-30 wt. % of a film-forming coating mixture of (a) about 90-98 wt. % of a vinyl acetate/acrylic acid copolymer (97.5-99/1-2.5%) or a vinyl acetate/monoethyl maleate copolymer (94-97/3-6%) and (b) about 2-10 wt. % of a soluble nitrocellulose resin solids, the resin being soluble in the solvent and having a nitrogen content of about 12 wt. % and a viscosity of from about 4-5 sec. in a 25% solution to about 3-4 sec. in a 20% solution of ethyl alcohol/toluene/ethyl acetate (25/55/20), when measured using the Falling Ball method.Paper products coated with the base coating (about 2-6 lbs./3000 ft..sup.2) are characterized by a balanced combination of alkali removability, water-resistance, and block-resistance. The metallized products are smooth and glossy, and the aluminized product is especially useful for bottle labels.
    Type: Grant
    Filed: April 26, 1982
    Date of Patent: February 28, 1984
    Assignee: National Starch and Chemical Corporation
    Inventors: Samuel Gold, Arthur A. Tracton, Josephine M. Rosenski
  • Patent number: 4421882
    Abstract: This invention relates to unique and novel blend compounds of an amine neutralized sulfonated elastomeric polymer and an unsulfonated elastomeric or thermoplastic polymer. These compounds can also be blended with fillers and/or oils when the sulfonated polymer is elastomeric. The materials display thermoplastic character.
    Type: Grant
    Filed: December 21, 1981
    Date of Patent: December 20, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventors: Robert D. Lundberg, Warren A. Thaler, Pawan K. Agarwal
  • Patent number: 4404298
    Abstract: Nitrocellulose/polyester or alkyd resin dispersions having a high pot life and low requirement for coalescing agent may be prepared with the aid of water-insoluble aminoplast resins if care is taken to ensure that a mixture of these components is present within the particles of the disperse phase.
    Type: Grant
    Filed: January 4, 1982
    Date of Patent: September 13, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Joachim Traenckner, Wolfgang Kremer