Patents Examined by P. Short
  • Patent number: 4378444
    Abstract: Use of a selected sulfonamide has been found to reduce mold deposits and to lower volatility without impairing crystallization rates of polyethylene terephthalate molding blend which contains an ionic hydrocarbon copolymer or ionic salt of a hydrocarbon acid, over polyethylene terephthalate blends which contained the ionic component and other additives.
    Type: Grant
    Filed: May 12, 1982
    Date of Patent: March 29, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Sumner A. Barenberg, Frank P. Gay
  • Patent number: 4376073
    Abstract: A method and apparatus for desolventizing residual solids after the oil or fat is extracted therefrom, wherein oil-bearing vegetable or fatty animal material has its oil or fat extracted by an extraction solvent to form an oil or fat solvent mixture, referred to as a "miscella," and extraction solvent impregnated residual solids. The oil or fat is separated from the miscella by heat and vacuum produced by ejector steam, which ejector steam acquires extraction solvent vapor as a result thereof. The solvent-vapor laden waste ejector steam, in conjunction with additional steam from a boiler system, is applied directly to the extraction solvent impregnated residual solids. The combined solvent-vapor laden waste ejector steam and boiler steam evaporate the extraction solvent from the impregnated residual solids and desolventize them to render them fit for consumption or other industrial processes.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: March 8, 1983
    Assignee: Bunge Corporation
    Inventor: Richard D. Farmer
  • Patent number: 4376072
    Abstract: Proteins lacking isoelectric points are precipitated out of solution by combining with the solution a protein (i.e. one or more proteins) having an isoelectric point, alkalizing the mixture to a pH of about 9-11, acidifying the mixture to a pH of about 2-4, and adjusting the pH of the mixture to the isoelectric point of the protein to precipitate novel protein complexes.A novel protein-free, undenatured dairy whey valuable for lactose crystallization and alcohol production is also obtainable.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: March 8, 1983
    Assignee: New Zealand Milk Products, Inc.
    Inventor: Philip B. Connolly
  • Patent number: 4374061
    Abstract: A novel resin is provided for use in chromatography to enable purification of plasma proteins Clq, Clr and Cls from Cohn Fraction I and other materials. An improved method results in obtaining substantially all of these materials from Cohn Fraction I or other media. The components of complement thus obtained are highly purified and retain full biological activity.
    Type: Grant
    Filed: July 27, 1981
    Date of Patent: February 15, 1983
    Assignee: Center For Blood Research, Inc.
    Inventor: David H. Bing
  • Patent number: 4368152
    Abstract: An improvement in a process for the treatment of proteinaceous material, wherein the proteinaceous material is admixed with a hydrocarbon solvent for any oil in the proteinaceous material and at least a fraction of the proteinaceous material is separated from the solvent and treated for removal of residual solvent, is disclosed. The improvement is characterized by (a) maintaining the temperature of the admixture of proteinaceous material and solvent in the range 0.degree.-35.degree. C., and (b) controlling the period of the time of contact of solvent and proteinaceous material and the period of the time of treatment for removal of residual solvent, whereby separation of a product having a level of residual solvent of less than 60 ppm may be effected. The proteinaceous material may be comminuted soya beans or rapeseed. Products having low residual solvent may be obtained. Such products may be used in the food industry.
    Type: Grant
    Filed: April 28, 1981
    Date of Patent: January 11, 1983
    Assignee: Du Pont Canada Inc.
    Inventor: Richard W. Oughton
  • Patent number: 4366097
    Abstract: A substantially undenatured protein isolate is formed from certain legumes and oil seeds, typically rapeseed (canola), by extracting protein from the source material with water and then diluting the resulting protein solution with more water. The dilution forms a dispersion of protein aggregates which are settled from the dispersion.
    Type: Grant
    Filed: March 16, 1981
    Date of Patent: December 28, 1982
    Assignee: General Foods, Inc.
    Inventors: Jacquelyn J. Cameron, Chester D. Myers
  • Patent number: 4365036
    Abstract: The fast crystallizing polyalkyleneterephthalate resin compositions disclosed herein contain 0.025-2 percent by weight of NaI in the form of a selected complex of sodium iodide (NaI) and an organic compound, such as a polymeric compound, which contains at least two recurring units of the formula --CH.sub.2 CH.sub.2 O-- together with reinforcing agents, fillers and/or additives and optionally a flow promoter selected from low molecular weight organic esters or block copolymers containing a recurring structure of [(CH.sub.2).sub.x O--].sub.m wherein x is an integer of no more than 5 and m is an integer ranging from 2, preferably from 200 to about 5,000. The amount of complex is such as to give 0.025-2 percent, preferably 1-2 percent by weight of NaI based on the weight of polyalkyleneterephthalate.
    Type: Grant
    Filed: December 15, 1981
    Date of Patent: December 21, 1982
    Assignee: Plastics Engineering Company
    Inventor: Chung J. Lee
  • Patent number: 4363888
    Abstract: A process for the preparation of rigid beads, of cross-linked polyester resin which beads may be solid or vesiculated, by forming an oil-in-water or a water-in-oil-in-water emulsion in which the oil phase contains an unsaturated polyester resin and an unsaturated organic monomer to provide said cross-linking and thereafter heating the emulsion to a temperature of at least 45.degree. C. before initiating polymerization of the oil phase by the introduction into the system of a polymerization initiator, and promoter system, if the latter is not already present in the emulsion.
    Type: Grant
    Filed: April 24, 1981
    Date of Patent: December 14, 1982
    Assignee: Tioxide Group Limited
    Inventors: Geoffrey Willison, John C. W. Hodge
  • Patent number: 4362155
    Abstract: A method and apparatus for the treatment of autoimmune diseases and allergy (hypersensitivity of immediate type). The apparatus ulitizes an absorption system to absorb interferon from whole blood, from plasma, or from plasma with leukocytes. When plasma or plasma with leukocytes is to be treated, the apparatus includes a separator for separating the plasma or plasma with keukocytes from the whole blood. Preferably, the separator also separates lymphocytes from the whole blood. Blood from a patient's circulation system is pumped either directly to an absorbent system or to the separator and then to the absorbent system. The absorbent system includes a sorbent that is designed to selectively absorb interferon from the blood, the plasma, or the plasma with leukocytes. Alternatively, the absorbent system utilizes a combined sorbent having a first component that absorbs interferon and a second component that abosrbs or removes antoantibodies.
    Type: Grant
    Filed: March 24, 1981
    Date of Patent: December 7, 1982
    Inventor: Simon V. Skurkovich
  • Patent number: 4362888
    Abstract: Dimethacrylates are provided having the following chemical structure: ##STR1## where ##STR2##is a saturated, 6 membered, monocyclic, hydrocarbyl ring system;R.sub.1, R.sub.2 and R.sub.3 are the same or different and are hydrogen or alkyl or alkoxy groups having 1 to 12 carbon atoms; andR.sub.4 and R.sub.5 are the same or different and are hydrogen or groups of the formula: ##STR3## where R.sub.6 is an aliphatic, aromatic or cycloaliphatic group having 1 to 14 carbon atoms, provided that at least one of the groups R.sub.4 and R.sub.5 is a group of the formula: ##STR4## These compounds are useful in dental material which cures to form polymers having high mechanical strength, low water sorption, resistance to staining, good color stability when exposed to short-wave radiation (e.g., sunlight) and good chemical resistance to the oral environment. Also provided are a method for polymerizing this compound in situ on teeth and a tooth comprising a polymer of this compound.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: December 7, 1982
    Assignee: Scientific Pharmaceuticals, Inc.
    Inventors: Jan A. Orlowski, David V. Butler, Patrick D. Kidd
  • Patent number: 4362568
    Abstract: A petroleum distillate-free or essentially petroleum distillate-free prime coat material for application to absorptive surfaces, such as untreated road or street surfaces, which is designed to penetrate, bond, and stabilize such existing surfaces and to promote adhesion between such surfaces and construction courses that follow. This type of material is also often used as a dust palliative. For this purpose, the material is applied to an untreated surface to control dust.
    Type: Grant
    Filed: October 6, 1980
    Date of Patent: December 7, 1982
    Assignee: K. E. McConnaughay, Inc.
    Inventor: Larry F. Ostermeyer
  • Patent number: 4359415
    Abstract: The passage of human urine through a bed of adsorbent material results in the adsorption from the urine of antineoplastic substances as determined by in vitro tissue culture techniques utilizing human tumor cells. The adsorbent yields two antineoplastic fractions upon sequential elution. Elution of the low-molecular weight antineoplastic fraction is accomplished by elution with cold aqueous acetone at slightly alkaline pH. Thereafter, elution of the high molecular weight antineoplastic fraction is accomplished by elution with a cold aqueous acetone-glycerol mixture at slightly alkaline pH.The antineoplastic activities of these fractions are determined by tissue culture techniques employing a variety of human neoplastic cells. Furthermore, the high molecular weight fraction, the antineoplastic urinary protein, also inhibits the progression and causes regression of certain human tumor cells implanted in the nude mouse.
    Type: Grant
    Filed: June 3, 1981
    Date of Patent: November 16, 1982
    Assignee: University of Tennessee Research Corporation
    Inventor: Nathan H. Sloane
  • Patent number: 4356072
    Abstract: A group of compounds having the following general formula can be obtained by reacting chromoprotein and organic acid: ##STR1## wherein X is a chromophore, P is a protein, NH.sub.2 is mainly .epsilon.-amino group of lysine, n is a positive integer of 1 to 18, and m is a positive integer in the relation of m.ltoreq.n. This compound group has one to eighteen organic acids bonded thereto, and shows various isoelectric points in accordance with the number of the organic acids, but the respective isoelectric points are maintained constant. If such compounds each having an individual isoelectric point, are used as isoelectric point markers, it is possible to recognize accurately the position of isoelectric point only by a visual operation.
    Type: Grant
    Filed: December 18, 1980
    Date of Patent: October 26, 1982
    Assignee: Oriental Yeast Company
    Inventors: Hiraku Saito, Isamu Takagahara, Yasuo Suzuki, Tuyosi Fujita, Katsumi Fujii, Takekazu Horio
  • Patent number: 4348239
    Abstract: A process for the mass coloration of organic material of high molecular weight, which comprises the use of a mixture of anthraquinone compounds of the formula: ##STR1## wherein n is 1 or 2, R, if n is 1, represents a substituted or unsubstituted anthraquinone radical, and, if n is 2, R represents a radical of the formula: ##STR2## wherein R.sub.1 represents hydrogen, alkyl of 1 to 4 carbon atoms, phenyl or methylmercapto as colorant, having good thermostability, solubility when incorporated in the polymer melt, and resistance to the staining of other material during thermofixation.
    Type: Grant
    Filed: July 31, 1980
    Date of Patent: September 7, 1982
    Assignee: Ciba-Geigy Corporation
    Inventor: Arnold Wick
  • Patent number: 4343654
    Abstract: Improved Stein-Hall type adhesives having an uncooked slurry portion and a cooked carrier portion wherein the carrier portion is produced by cooking a slurry of a starch having substantial amylopectin content, at an alkaline pH, in the presence of an amount of hydrogen peroxide sufficient to lower the viscosity of the cooked carrier to that of conventional Stein-Hall carriers, viz., so that when added to the secondary slurry, the viscosity of the finished adhesive will be about 40 to 50 seconds (Stein-Hall) at 100.degree.-105.degree. F., and in the presence of a catalyst effective to reduce the cooking time required to reach that viscosity to about 15 minutes or less.
    Type: Grant
    Filed: February 8, 1980
    Date of Patent: August 10, 1982
    Assignee: MPW Tech. Associates
    Inventors: Franklyn O. Ware, William S. McDonald
  • Patent number: 4343616
    Abstract: Lubricant compositions for finishing synthetic fibers which exhibit improved thermal stability and low-fuming characteristics are provided which contain 50 to 90 percent by weight of a thermally stable lubricant and 10 to 50 percent by weight of an emulsifiably effective surfactant having the formula:R-O-A.sub.a B.sub.b -Hwherein R is an alkyl having 6 to 14 carbon atoms, A is oxypropylene groups, B is oxyethylene groups, a is an integer having values of about 4 to 15, and b is an integer having values of 5 to 10.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: August 10, 1982
    Assignee: Union Carbide Corporation
    Inventors: Quintin W. Decker, Erich Marcus
  • Patent number: 4341697
    Abstract: A novel, glycoprotein antigen obtained from T. cruzi organisms can be used in vaccines for inducing immunity in humans to Chagas' disease. The glycoprotein is extracted by treating trypanosomes with a detergent and separating it from the cell debris and other proteinaceous material by affinity chromatography using lectin with affinity for glucose, mannose or galactose.
    Type: Grant
    Filed: May 18, 1981
    Date of Patent: July 27, 1982
    Assignee: Burroughs Wellcome Co.
    Inventor: David Snary
  • Patent number: 4339276
    Abstract: A wax emulsion is provided which comprises as essential ingredients (A) 100 parts by weight of a petroleum fraction wax having a melting point ranging within 40.degree. to 90.degree. C.; and (B) 3 to 20 parts by weight of an oxygen containing wax; said oxygen-containing wax being prepared by mixing 10 to 80 parts by weight of a petroleum fraction wax (I) having a melting point ranging within 50.degree. to 85.degree. C. with 90 to 20 parts by weight of a polyolefin wax (II) having a melting point ranging within 36.degree. to 120.degree. C., a number average molecular weight of from 310 to 1,000 and 5 to 50 double bonds per 1,000 carbon atoms to obtain a mixture, and then reacting 100 parts by weight of said mixture with 3 to 25 parts by weight of an unsaturated polycarboxylic acid or an anhydride thereof under a condition for forming free radicals.
    Type: Grant
    Filed: December 3, 1980
    Date of Patent: July 13, 1982
    Assignee: Nippon Oil Company, Limited
    Inventors: Nobuo Yokoyama, Nobuaki Kawabata
  • Patent number: 4336071
    Abstract: A kneading and modeling compound or clay and the use of such compound which is constituted of binding agents, plasticizers and/or solvents, as well as fillers. The fillers include aluminum hydroxide. The compound may also include pigments and other additives.
    Type: Grant
    Filed: September 12, 1980
    Date of Patent: June 22, 1982
    Assignee: Firma J. S. Staedtler
    Inventor: Heinrich Schnorrer
  • Patent number: 4330414
    Abstract: A hydrophilic polymer composition for use in thickening aqueous mediums comprising hydroxyethyl cellulose, a water miscible polar organic liquid which acts as solvating agent for the hydroxyethyl cellulose, the solvating agent being of a type which forms a semi-solid to viscous mixture with the hydroxyethyl cellulose under certain conditions. The polymeric composition alone, or in admixture with a diluting agent which is a non-solvating agent for the hydroxyethyl cellulose, can be added to aqueous mediums, particularly heavy brines, to produce well servicing fluids.
    Type: Grant
    Filed: February 8, 1980
    Date of Patent: May 18, 1982
    Assignee: NL Industries, Inc.
    Inventor: Lonnie D. Hoover