Patents Represented by Attorney Jay C. Langston
-
Patent number: 4441918Abstract: The use of oxamide, oxamic acid and various derivatives thereof as growth regulators is disclosed. A number of physiological effects on plants and plant tissues are set forth, and many practical uses of the invention in the agricultural field are mentioned.Type: GrantFiled: July 1, 1982Date of Patent: April 10, 1984Assignee: Estech, Inc.Inventor: Bobby E. Rehberg
-
Patent number: 4247502Abstract: High surface-tack hot melt adhesives, when coated with certain powders, can be cut into small pieces with little difficulty after extrusion onto a cooling belt.Type: GrantFiled: July 3, 1979Date of Patent: January 27, 1981Assignee: Unitech Chemical Inc.Inventor: Carl C. Loechell
-
Patent number: 4209604Abstract: Polymerizable acrylic monomers, and anaerobic adhesives which contain such monomers, wherein the acrylic monomers contain internal chain unsaturation in addition to terminal acrylic unsaturation.Type: GrantFiled: January 7, 1976Date of Patent: June 24, 1980Assignee: Estech Specialty Chemicals CorporationInventor: Gerhardt P. Werber
-
Patent number: 4129607Abstract: Blends of certain block copolymers and epoxy resins, which have superior thermoplastic adhesive properties are disclosed. The blends are prepared by mixing hydroxy-terminated poly(ester/ether) block copolymers with epoxy resins. These unreacted blends are useful as hot melt thermoplastic adhesives having very high peel strength, high tensile shear strength, creep resistance at elevated temperatures, and good viscosity stability.Type: GrantFiled: May 31, 1977Date of Patent: December 12, 1978Assignee: Unitech Chemical Inc.Inventors: John H. Kooi, Ralph M. Schure, John M. Brown
-
Patent number: 4105749Abstract: Phosphate ora matrix is treated to recover P.sub.2 O.sub.5 values. The matrix may be the phosphate ore as it is mined, or it may be residue formed upon dewatering benefication slimes. Without being subjected to beneficiation, this matrix is slurried with an organic solvent in a slurry vessel. When the slurry is mixed with a strong mineral acid, a system having a single liquid phase is formed with the organic solvent serving as a vehicle for distribution of the mineral acid which in turn solubilizes P.sub.2 O.sub.5 values for their extraction from the matrix. Thereafter the P.sub.2 O.sub.5 values are separated from the solid phase and then removed from the organic solvent.Type: GrantFiled: May 5, 1977Date of Patent: August 8, 1978Assignee: Swift Agricultural Chemicals CorporationInventors: Robert A. Wilson, David J. Raden
-
Patent number: 4101414Abstract: Screened and drained used lubricating oil stock is predistilled in a steam stripping still for about 4 hours or more. The thus predistilled used oil then flows to an evaporator for a vacuum distillation at a temperature below the cracking temperature of the stock, about 480.degree.-650.degree. F., to effect an evaporation of the used lubricating oil and its separation from a concentrate by-product of heavy lube hydrocarbons and additives.Type: GrantFiled: September 2, 1975Date of Patent: July 18, 1978Assignee: Unitech Chemical Inc.Inventors: Yang J. Kim, Belton R. Williams
-
Patent number: 4093675Abstract: A polymeric compound having superior thermoplastic adhesive properties is disclosed. The compound is a poly(ester/ether) block copolymer which is extended with an anhydride to introduce carboxyl groups thereinto. Also disclosed are thermoset adhesives having superior properties and which are such carboxylated copolymers that have been crosslinked with a suitable resin.Type: GrantFiled: June 26, 1975Date of Patent: June 6, 1978Assignee: Unitech Chemical Inc.Inventors: Ralph M. Schure, John H. Kooi, John M. Brown
-
Patent number: 4071447Abstract: Wastewater treatment wastes, such as skimmings or sludges, are processed so as to reduce the water content by approximately two thirds and increase the impurities content thereof. The wastes are passed over a dense supply of very fine bubbles. These fine bubbles assist in floating impurities within the wastes to result in the formation of an upper stratum of gas, residual water and a concentrated impurities content and of a lower stratum that is primarily water, after which the upper and lower strata are separated.Type: GrantFiled: September 1, 1976Date of Patent: January 31, 1978Assignee: Swift & CompanyInventor: Ernest R. Ramirez
-
Patent number: 4019889Abstract: Fertilizer compositions which are slowly and uniformly leached and made available to the plant over a relatively long period of time resulting in more efficient utilization of the fertilizer by the plant are provided by bonding fertilizer material with the hemihydrate of calcium sulfate.Type: GrantFiled: July 21, 1975Date of Patent: April 26, 1977Assignee: Swift Chemical CompanyInventor: Joseph P. Kealy
-
Patent number: 3969203Abstract: A method of treating industrial waste water containing suspended particles such as mineral oil, fats, proteins, glycerides, fibers, and biodegradable materials, by exposing said water to a plurality of positive and negative electrodes whereby high current densities are used to create large volumes of microbubbles which float the particles to the surface and periodically reversing the current so as to keep the cathodes clean is disclosed.Type: GrantFiled: February 19, 1974Date of Patent: July 13, 1976Assignee: Swift & CompanyInventor: Ernest R. Ramirez
-
Patent number: 3955005Abstract: Butylated hydroxy anisole functions as an antimicrobial agent in hydrous material capable of supporting microbial growth when used in excess of about 0.02 percent by weight of the hydrous material.Type: GrantFiled: November 14, 1973Date of Patent: May 4, 1976Assignee: Swift & CompanyInventors: Richard D. Trelease, Robert B. Tompkin