Patents Represented by Attorney H. J. Holt
  • Patent number: 4064166
    Abstract: A derivative of coniferous tree barks is produced by reacting at elevated temperatures an alkaline polyphenolic solution of a coniferous bark extract in the proportion of from 0.1, and preferably from 0.5 to 8.0 moles of a carbonyl-activated halocompound per mole of monomeric unit in the polyphenol of the formula ##STR1## or with a cyano-activated halocompound of the formula ##STR2## wherein R' is H, HC.dbd.O or R--C .dbd.O where R is alkyl or aryl; X is halogen and R" is alkyl, OH, oxyalkyl, aryl or OM in which M is a metal. The starting materials are the alkaline extracts resulting from the digestion of coniferous tree barks with an alkaline aqueous solution or preferably the sulfonated acid extracts of such barks. The reaction products are etherified polyphenolic compounds which are water-soluble and possess chelating characteristics.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: December 20, 1977
    Assignee: International Telephone and Telegraph Corporation
    Inventors: Karl David Sears, Ronald Leroy Casebier
  • Patent number: 4056675
    Abstract: Regenerated cellulosic fibers of improved resistance to alkaline treatment are produced by nitrosating and dissolving from 5 to 14% by weight of a cellulosic material in a dialkylacylamide solvent while said solution is maintained at a temperature no greater than 20.degree. C to form a cellulose nitrite ester, and regenerating the cellulose by contacting the cellulose ester with a regenerant. Regeneration of the cellulose occurs before significant oxidation of the cellulose takes place.
    Type: Grant
    Filed: February 27, 1976
    Date of Patent: November 1, 1977
    Assignee: International Telephone and Telegraph Corporation
    Inventors: Albin Frank Turbak, Richard Benjamin Hammer
  • Patent number: 4051003
    Abstract: Diallyl esters of dicarboxylic acids are provided corresponding to the formula: ##STR1## wherein R is an organic radical containing from 4 to 20 carbon atoms and is selected from the group consisting of alkyl radicals, cycloalkyl radicals, mixed alkyl-cycloalkyl radicals and aralkyl radicals; R' and R" are independently selected from hydrogen, alkyl, cycloalkyl, aralkyl and aryl radicals and mixtures thereof; and the total carbon atoms in R, R' and R" is from 10 to 34. These diallyl esters are crosslinking coreactants for polymeric compositions and especially high temperature processing fluorocarbon polymers. The crosslinked compositions are particularly useful for insulation coatings.
    Type: Grant
    Filed: March 26, 1976
    Date of Patent: September 27, 1977
    Assignee: International Telephone and Telegraph Corporation
    Inventors: Elihu J. Aronoff, Kewal Singh Dhami
  • Patent number: 4044090
    Abstract: A regenerated cellulosic product is produced by nitrosating and dissolving a cellulosic material in a solution comprising a dialkylacylamide solvent and adding from 2 to 25% by weight, based on the weight of the solution, of a tertiary amine to form a soluble cellulose nitrite ester, contacting the cellulose ester with a coagulant therefore, stretching the coagulated cellulose ester prior to complete regeneration thereof and then completing the regeneration of the cellulose to produce a regenerated cellulosic product.
    Type: Grant
    Filed: July 9, 1975
    Date of Patent: August 23, 1977
    Assignee: International Telephone and Telegraph Corporation
    Inventor: Norman A. Portnoy
  • Patent number: 4042366
    Abstract: A controlled release particulate fertilizer composition containing nitrogen in a form which is slowly released and a water soluble solid additive, such as a phosphorus or potassium nutrient salt, in a form which is quickly released comprising a core of a water soluble nitrogen nutrient source, a coating of sulfur surrounding the core, and a coating surrounding the sulfur coating of an inert water-insoluble material such as wax. The inert coating comprises an inner portion of the inert coating alone and an outer portion containing the salt or other water soluble additive.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: August 16, 1977
    Assignee: The O.M. Scott & Sons Company
    Inventors: Kenneth Eugene Fersch, Wayne Eugene Stearns
  • Patent number: 4039508
    Abstract: Polymeric compositions contain as an antioxidant therefor a mercaptoquinazolone of the formula ##STR1## in which R is allyl or methallyl. The antioxidant forms a covalent bond with the polymer upon crosslinking of the latter and thereby antioxidant loss by volatilization or separation is avoided.
    Type: Grant
    Filed: September 22, 1976
    Date of Patent: August 2, 1977
    Assignee: International Telephone and Telegraph Corporation
    Inventor: Kewal Singh Dhami
  • Patent number: 4032074
    Abstract: A material spreader for the uniform distribution to the soil or to vegetation of particulate material such as fertilizers, pesticides or seeds. The material spreader comprises a hopper for particulate material adapted to be advanced along a given direction, the hopper including an outlet for discharging the particulate material downwardly, an impeller in association with the outlet for broadcasting the discharged material in a generally radial path surrounding the axis of discharge, and a shroud surrounding the impeller aligned to intersect the path of the broadcast material and to deflect the material downwardly to a region of controlled configuration. The shroud is curved, preferably elliptically in horizontal cross-section and has a width along the direction of advance of the spreader which is less than the width along a direction transverse to the direction of advance.
    Type: Grant
    Filed: November 24, 1975
    Date of Patent: June 28, 1977
    Assignee: O. M. Scott & Sons Company
    Inventor: James Dalton Amerine
  • Patent number: 4031167
    Abstract: A crosslinking composition comprising a blend of at least two polyallylic esters of polycarboxylic acids, one of said esters being a diallylic ester of an alkylene, cycloalkylene, mixed alkylene-cycloalkylene or aralkylene dicarboxylic acid, the other of said esters being a polyallylic ester of an aromatic or heteroaromatic polycarboxylic acid or triallyl ester of isocyanuric acid. The crosslinking compositions are particularly useful as crosslinking coreactants for high temperature processing fluorocarbon polymers. The products resulting from the mixing of fluorocarbon polymers and blends of diallyl esters with triallyl or tetraallyl esters are particularly useful as coatings for wire products.
    Type: Grant
    Filed: June 5, 1975
    Date of Patent: June 21, 1977
    Assignee: International Telephone and Telegraph Corporation
    Inventors: Elihu J. Aronoff, Kewal Singh Dhami
  • Patent number: 4028464
    Abstract: A fungicide composition for the control of plant disease comprising (a) a substituted methoxybenzene and (b) a benzimidazolecarbamate or a compound which breaks down upon application to plants to form a benzimidazolecarbamate, the ratio by weight of the methoxybenzene to the benzimidazolecarbamate ranging from 10:1 to 1:5. The compositions are particularly effective for the control of both gray and pink snowmold.
    Type: Grant
    Filed: November 24, 1975
    Date of Patent: June 7, 1977
    Assignee: The O. M. Scott & Sons Company
    Inventors: Robert Joseph Bell, James Almy Simmons
  • Patent number: 4028471
    Abstract: A yeast leavened dough composition containing, for each 100 parts by weight of flour, an additive comprising from 0.0020 to 0.0120 parts by weight of a peroxide oxidizing agent and from 0.0025 to 0.090 parts by weight of either sorbic acid or a sodium, potassium or calcium salt of sorbic acid, the ratio of peroxide to sorbate being no greater than one with more than 0.0075 parts by weight of peroxide. A baked product produced from such a composition has a number of improved characteristics including crumb resiliency, overall texture, structure and shelf life.
    Type: Grant
    Filed: December 1, 1975
    Date of Patent: June 7, 1977
    Assignee: International Telephone and Telegraph Corporation
    Inventors: Jack Kern Krum, Louis Albert Wollermann, Dugan Allan Rucker
  • Patent number: 4025329
    Abstract: A controlled-release particulate fertilizer composition is prepared by compacting and agglomerating particles of a foamed urea-formaldehyde condensation product into a sheet having a specific gravity of at least 1.40, the molar ratio of urea to formaldehyde in said condensation product being from 1.3:1 to 2.4:1, comminuting the compacted sheet into particulate form and separating and recovering the particles having a size of more than 30 mesh, substantially all said recovered particles having a ratio of largest to smallest particle of less than 3:1. The fertilizer is characterized by a high degree of uniformity from particle to particle in both composition and size, relatively high particle density and a combination of both quick initial and long lasting nutrient release.
    Type: Grant
    Filed: December 4, 1975
    Date of Patent: May 24, 1977
    Assignee: O. M. Scott & Sons Company
    Inventor: Harvey Maurice Goertz
  • Patent number: 4022631
    Abstract: Cellulosic articles are regenerated from a cellulosic solution formed by the addition of cellulosic material to dimethyl sulfoxide and formaldehyde or paraformaldehyde by contacting the cellulosic solution with an aqueous solution having a pH greater than seven of a water soluble nucleophilic compound selected from the group consisting of ammonia, ammonium salts, saturated amines and salts of sulfur compounds in which the sulfur has a valence of less than six.
    Type: Grant
    Filed: May 19, 1975
    Date of Patent: May 10, 1977
    Assignee: International Telephone and Telegraph Corporation
    Inventors: Albin F. Turbak, Richard B. Hammer, Norman A. Portnoy, Richard E. Davies
  • Patent number: 4018681
    Abstract: Cellulosic solutions are filtered by a process enabling virtual complete recovery and recycling of the undissolved cellulosic components of the solutions. The process comprises filtering the solution through a bed of particulate material until the build-up of undissolved material impedes the further flow of solution through the bed, mixing the undissolved material and particulate bed with a solvent to partially dissolve the undissolved material, which is highly concentrated relative to its original concentration before filtration, adding a solubilizing reactant to said concentrated partial solution of undissolved material to complete the solution of the cellulosic residues, and separating and recycling the resulting solution.
    Type: Grant
    Filed: November 12, 1975
    Date of Patent: April 19, 1977
    Assignee: International Telephone and Telegraph Corporation
    Inventors: Edmund M. LaPolla, Charles F. Murphy, Arthur Sarkisian
  • Patent number: 4002457
    Abstract: Spent sulfite liquor is converted into a nitrogen containing water insoluble product useful as a soil conditioner and fertilizer. The spent sulfite liquor is heated at a temperature of 170.degree. to 260.degree. C to form a partially pyrolyzed water insoluble material and the water insoluble material is then reacted with ammonia at a temperature of 170.degree. to 260.degree. C.
    Type: Grant
    Filed: March 11, 1976
    Date of Patent: January 11, 1977
    Assignee: International Telephone and Telegraph Corporation
    Inventors: Karl David Sears, Franklin Willard Herrick
  • Patent number: 3996413
    Abstract: A water blocking compound for sheathed stranded cables, the compound being a gel consisting of a major proportion by weight of a substantially non-volatile liquid in which has been dispersed a minor proportion by weight of a solid gellant which is insoluble in said liquid and which does not melt below 100.degree. C, the gel being substantially devoid of any gellant which is soluble in the liquid and/or melts below 100.degree. C.
    Type: Grant
    Filed: March 24, 1975
    Date of Patent: December 7, 1976
    Assignee: International Standard Electric Corporation
    Inventors: Stanley George Foord, Walter Eric Simpson, Peter Ivan Aitken Martin
  • Patent number: 3995091
    Abstract: Esters of sulfonyl dibenzoic acid of the formula ##SPC1##In which R.sub.1 and R.sub.2 are selected from the group consisting of allyl and methallyl. The compounds are useful as additives to accelerate the crosslinking of polymeric materials.
    Type: Grant
    Filed: February 3, 1976
    Date of Patent: November 30, 1976
    Assignee: International Telephone and Telegraph Corporation
    Inventor: Kewal Singh Dhami
  • Patent number: 3988198
    Abstract: Spent hemi caustic effluents from cold caustic extraction of cellulosic pulps are rendered utilizable as a source of sodium hydroxide for pulp processing by heating the effluents for a period of time and at a temperature sufficient to cause the hemicelluloses in the effluents to be degraded and to substantially eliminate precipitation of the hemicelluloses onto cellulosic materials when the effluents are used.
    Type: Grant
    Filed: October 7, 1974
    Date of Patent: October 26, 1976
    Assignee: International Telephone and Telegraph Corporation
    Inventors: Jim Degnan Wilson, Andrew Beelik, Herbert Lawrence Hergert, Reid Logan Mitchell
  • Patent number: 3985716
    Abstract: Esters of sulfonyl dibenzoic acid of the formula ##SPC1##In which R.sub.1 and R.sub.2 are selected from the group consisting of allyl and methallyl. The compounds are useful as additives to accelerate the crosslinking of polymeric materials.
    Type: Grant
    Filed: November 29, 1974
    Date of Patent: October 12, 1976
    Assignee: International Telephone and Telegraph Corporation
    Inventor: Kewal Singh Dhami
  • Patent number: 3985667
    Abstract: A process and composition for drilling a well through shale formation in sea water with an aqueous drilling mud comprising a clay -- sea water slurry containing a potassium salt of lignosulfonate. The lignosulfonate is prepared by reaction of potassium hydroxide or a salt of sulfurous acid with spent sulfite liquor at elevated temperatures. A particularly effective drilling composition also contains hydroxy acids and up to 4%, based on total solids content of the lignosulfonate, of an iron complex.
    Type: Grant
    Filed: October 10, 1973
    Date of Patent: October 12, 1976
    Assignee: International Telephone and Telegraph Corporation
    Inventors: Kenneth Russell Gray, Lloyd Eugene Van Blaricom, Harvey Rudolph Deweyert
  • Patent number: PP4097
    Abstract: A perennial St. Augustine grass having outstanding dark green color, rapid lateral spread, a semi-dwarf growth habit, and a medium level of flowering shoot production. This variety has good gray leafspot resistance throughout the year and is cold tolerant.
    Type: Grant
    Filed: August 13, 1976
    Date of Patent: September 6, 1977
    Assignee: The O.M. Scott & Sons Company
    Inventors: Jake T. Gruis, Terrance P. Riordan, John A. Long