Patents Represented by Attorney Dale Lynn Carlson

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  • Anionic polycarboxylated surfactants as dye-leveling agents used in combination with a stainblocker for fibers
    Patent number: 5030245
    Abstract: The present invention relates to a process for providing dye leveling and stainblocking characteristics to fibers. The use of specified dye-leveling agents in accordance with the present invention allows the treated fibers to be contacted with an acid dye-stainblocker composition in a single step. The invention is particularly suitable for treating nylon, silk and wool fibers.
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: July 9, 1991
    Assignee: Olin Corporation
    Inventors: Thomas C. Hemling, Harry Stitzel
  • Chitosan pyrithione as an antimicrobial agent useful in personal care products
    Patent number: 5015632
    Abstract: In accordance with the present invention, a new pyrithione salt, namely chitosan pyrithione, is produced. This composition is characterized by a combination of slow release from films and excellent antimicrobial activity. The antimicrobial activity is equivalent to that of sodium pyrithione. These properties make chitosan pyrithione potentially useful as an antimicrobial agent in a variety of dermatological items, such as soaps, shampoos, and skin care medicaments.
    Type: Grant
    Filed: August 2, 1990
    Date of Patent: May 14, 1991
    Assignee: Olin Corporation
    Inventor: John D. Nelson
  • Process for purifying aromatic nitration products
    Patent number: 5012019
    Abstract: The present invention relates to a process for purifying an aromatic nitration product mixture comprising a nitrated aromatic compound, water, and nitric or sulfuric acid which comprises without regard to sequence: (a) removing at least a portion of said water from said product mixture by contacting and reacting said water in said mixture with magnesium nitrate trihydrate to form magnesium nitrate pentahydrate or magnesium nitrate hexahydrate and removing said magnesium nitrate pentahydrate or magnesium nitrate hexahydrate from said nitrated aromatic compound in said product mixture, and (b) removing at least a portion of said acid from said product mixture by contacting and reacting said acid with an ionic or non-ionic absorbent to form a reacted absorbent and removing said reacted absorbent from said nitrated aromatic compound in said product mixture.
    Type: Grant
    Filed: January 26, 1990
    Date of Patent: April 30, 1991
    Assignee: Olin Corporation
    Inventors: Robert W. Mason, Peter C. Imm, Paul J. Craney, Thomas W. Offill, Robert T. Brooker
  • Use of pyrithione for the control of moss
    Patent number: 5009700
    Abstract: The present invention relates to a process for ridding moss from an unwanted location such as lawns, walls, monuments, building foundations, tombstones, and combinations thereof which comprises contacting moss growing in said unwanted location with a mossicidal effective amount of a pyrithione salt.
    Type: Grant
    Filed: July 26, 1990
    Date of Patent: April 23, 1991
    Assignee: Olin Corporation
    Inventor: Eugene F. Rothgery
  • Process for the preparation of nitramine-containing homopolymers and co-polymers
    Patent number: 5008443
    Abstract: Energetic binders, and, more specifically, a class of nitramine-containing homopolymers and co-polymers characterized by favorable viscosity and glass transition temperature are prepared.
    Type: Grant
    Filed: September 25, 1989
    Date of Patent: April 16, 1991
    Assignee: Olin Corporation
    Inventors: Roger W. Day, Rahim Hani
  • Method and kit for detecting live microorganisms in chlorine- or bromine-treated water
    Patent number: 5004682
    Abstract: A water monitoring system, and more particularly a method and kit for detecting the presence of live undesirable or indicator microorganisms in water after treatment of the water with chlorine or bromine.
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: April 2, 1991
    Assignee: Olin Corporation
    Inventors: Katherine P. Roberts, Jon R. Geiger, Jayne F. Carney
  • Lubricants for heat transfer fluids
    Patent number: 5002678
    Abstract: A heat transfer composition comprising a heat transfer medium and a lubricant, wherein said heat transfer medium is a low boiling organic compound and wherein said lubricant is a halogenated polyoxyalkylene monoalcohol having the empirical structural formula:R.sub.1 X.sub.m (OR.sub.2).sub.n --OHwherein R.sub.1 and R.sub.2 are independently selected from the group having 1 to 18 carbon atoms, an aryl group having from 6 to 18 carbon atoms, and combinations thereof, X is a halogen, m is an integer of between 1 and 37, and n is an integer from 5-350. Also claimed is the process for making the lubricant and the lubricant composition itself.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: March 26, 1991
    Assignee: Olin Corporation
    Inventors: Arthur R. Vanover, Jerry D. Necessary, Kiran B. Chandalia, John W. Reisch, James M. O'Connor, Kevin Delaney, Philip R. Miller
  • Enzyme catalyzed synthesis of methyl urethanes
    Patent number: 5002880
    Abstract: The present invention relates to a process for making an isocyanate which comprises the steps of: (a) reacting an amine with dimethyl carbonate in the presence of a hydrolase enzyme catalyst, preferably at a temperature not exceeding 50.degree. C. to form a methyl urethane, and (b) subjecting said methyl urethane to an elevated temperature in order to thermally cleave the urethane to produce an isocyanate.
    Type: Grant
    Filed: January 8, 1990
    Date of Patent: March 26, 1991
    Assignee: Olin Corporation
    Inventor: Robert W. Mason
  • Process for the production of dinitrotoluene
    Patent number: 5001272
    Abstract: Aromatic nitration reactions and, more specifically, a process for nitrating toluene to dinitrotoluene. The process involves a liquid phase nitration reaction of anhydrous nitric acid and toluene in a molar ratio of between about 5:1 and about 9:1 of nitric acid to toluene in a reactor at a reaction temperature of between about 40.degree. C. and about 70.degree. C., in the absence of sulfuric acid and in the absence of any dipolar organic solvent, to produce a mixture containing dinitrotoluene, and isolating said dinitrotoluene by contacting said mixture with a phase separating effective amount of an alkali or alkaine earth metal nitrate salt to cause phase separation of said dinitrotoluene.
    Type: Grant
    Filed: September 5, 1989
    Date of Patent: March 19, 1991
    Assignee: Olin Corporation
    Inventor: Robert W. Mason
  • Polyurethane sealants made using high molecular weight polyols prepared with double metal cyanide catalysts
    Patent number: 4985491
    Abstract: This invention relates to a method of fabricating a polyurethane sealant composition employing a polyether triol having a molecular weight of between about 5,000 and about 30,000 and having a level of end group unsaturation of no greater than 0.04 milliequivalents per gram of triol, wherein the triol is fabricated in the presence of a double metal cyanide catalyst. The triol is reacted, alone or in admixture with a diol, with a polyisocyanate to produce an isocyanate-terminated prepolymer. The prepolymer is then chain-extended to produce the desired sealant.
    Type: Grant
    Filed: October 5, 1989
    Date of Patent: January 15, 1991
    Assignee: Olin Corporation
    Inventor: John W. Reisch
  • Method and kit for detecting live microorganisms in chlorine- or bromine-treated water
    Patent number: 4983511
    Abstract: Water monitoring systems, and more specifically, to a method and kit for detecting the presence of only living undesirable or indicator microorganisms in water after treatment of the water with chlorine or bromine.
    Type: Grant
    Filed: January 9, 1989
    Date of Patent: January 8, 1991
    Assignee: Olin Corporation
    Inventors: Jon R. Geiger, Jayne F. Carney, Katherine P. Roberts
  • Block co-polymers useful as aqueous dispersants
    Patent number: 4959156
    Abstract: A process for preparing water-scale inhibitors and, more specifically, a neat process for preparing acrylic acid/ethylene glycol graft co-polymers and a method for their use as scale inhibitors.
    Type: Grant
    Filed: April 10, 1989
    Date of Patent: September 25, 1990
    Assignee: Olin Corporation
    Inventors: Donald L. Lickei, Michael L. Rosin, Ming Shen
  • Alkylene oxides production from alkanes or alkylaromatics using molten nitrate salt catalyst
    Patent number: 4959486
    Abstract: A process for producing an alkylene oxide or mixture of alkylene oxides by a reaction which comprises reacting an alkane or alkylaromatic compound mixture thereof with an oxygen-containing gas in the presence of at least one molten nitrate salt catalyst.
    Type: Grant
    Filed: August 3, 1989
    Date of Patent: September 25, 1990
    Assignee: Olin Corporation
    Inventor: B. Timothy Pennington
  • Process and composition for providing reduced discoloration caused by the presence of pyrithione and ferric ion in water-based paints and paint bases
    Patent number: 4957658
    Abstract: This invention relates generally to paints and paint bases and, more specifically, to a process and composition for providing reduced discoloration of paints and paint bases containing a pyrithione and ferric ion.
    Type: Grant
    Filed: February 24, 1989
    Date of Patent: September 18, 1990
    Assignee: Olin Corporation
    Inventors: Cheryl B. French, Sigmund Breister
  • Chitosan pyrithione as antimicrobial agent useful in personal care products
    Patent number: 4957908
    Abstract: In accordance with the present invention, a new pyrithione salt, namely chitosan pytighione, is produced. This composition is characterized by a combination of slow release from films and excellent antimicrobial activity. The antimicrobial activity is equivalent to that of sodium pyrithione. These properties make chitosan pyrithione potentially useful as an antimicrobial agent in a variety of dermatological items, such as soaps, shampoos, and skin care medicaments.
    Type: Grant
    Filed: January 8, 1990
    Date of Patent: September 18, 1990
    Assignee: Olin Corporation
    Inventor: John D. Nelson
  • Multiple layer container for storage of high purity chemicals
    Patent number: 4948642
    Abstract: This invention relates generally to multiple-layered thermoplastic structures. More specifically, it is concerned with a hollow multiple-layered container, preferably formed by co-extruding or co-injecting a first chemically resistant and non-contaminating inner layer and a second structurally reinforcing outer layer into a blow mold, together with a third layer comprising a copolymer blend and functioning as a tie-layer to bond said first layer and said second layer. The hollow multiple-layered container is used for the storage of high purity and highly reactive chemicals.
    Type: Grant
    Filed: May 23, 1989
    Date of Patent: August 14, 1990
    Assignee: Olin Corporation
    Inventors: David J. Shantz, Thomas A. Armer, David V. Olson
  • Multiple layer container for storage of high purity chemicals
    Patent number: 4948641
    Abstract: This invention relates generally to multiple-layered thermoplastic structures. More specifically, it is concerned with a hollow multiple-layered container, preferably formed by co-extruding or co-injecting a first chemically resistant and non-contaminating inner layer and a second structurally reinforcing outer layer into a blow mold, together with a third layer comprising a copolymer blend and functioning as a tie-layer to bond said first layer and said second layer. The hollow multiple-layered container is used for the storage of high purity and highly reactive chemicals.
    Type: Grant
    Filed: December 11, 1989
    Date of Patent: August 14, 1990
    Assignee: Olin Corporation
    Inventors: David J. Shantz, Thomas A. Armer, David V. Olson
  • Molten salt catalyzed oxidation of alkanes or olefins using lower temperture nitrate salts
    Patent number: 4943643
    Abstract: A process for the vapor phase oxidation of olefins in molten salt catalyst to produce alkylene oxides in increased molar selectivity and per-pass yields while reducing the molar selectivity of aldehyde by-products. The process involves the use of molten nitrate salt catalyst compositions which comprise lithium nitrate and which are heated and operated at a low temperature within the range of about 180.degree. C. up to about 250.degree. C., more preferably 200.degree. C. to 250.degree. C.
    Type: Grant
    Filed: June 7, 1989
    Date of Patent: July 24, 1990
    Assignee: Olin Corporation
    Inventors: B. Timothy Pennington, Michael C. Fullington
  • Process and composition for providing reduced discoloration caused by the presence of pyrithione and ferric ion in water-based paints and paint bases
    Patent number: 4935061
    Abstract: This invention relates generally to paints and paint bases and, more specifically, to a process and composition for providing reduced discoloration of paints and paint bases containing a pyrithione and ferric ion.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: June 19, 1990
    Assignee: Olin Corporation
    Inventors: Cheryl B. French, Sigmund Breister
  • Solid explosive and propellant compositions containing a polyurethane polyacetal elastomer binder and method for the preparation thereof
    Patent number: 4925503
    Abstract: A high energy solid explosive or propellant composition having low vulnerability to unplanned stimuli and desired mechanical properties, including a desired degree of hardness. Also claimed is a process for producing this composition.
    Type: Grant
    Filed: February 17, 1988
    Date of Patent: May 15, 1990
    Assignee: Olin Corporation
    Inventors: J. B. Canterberry, Lawrence E. Katz