Patents Assigned to Witco Corporation
  • Electrical grade polyvinyl chloride resin composition stabilized with a non-lead stabilizer
    Patent number: 5756570
    Abstract: An electrical grade polyvinyl chloride resin composition suitable for use as an electrical insulation material and avoiding the use of lead based stabilizers having a high volume resistivity when exposed to or immersed in water and a high resistance to deterioration when heated at temperatures above 100.degree. C. is disclosed. The composition is composed of an electrical grade polyvinyl chloride resin, filler, carboxylic acid ester plasticizer, at least one heat stabilizer from which cadmium and lead are substantially excluded, and as a wet resistivity agent protecting against the effective of water, a defined amount of at least one alkaline earth metal oxide or hydroxide.
    Type: Grant
    Filed: March 17, 1997
    Date of Patent: May 26, 1998
    Assignee: Witco Corporation
    Inventors: Samuel Hoch, Michael H. Fisch
  • Obtaining enhanced paper production using cationic compositions containing diol and/or diol alkoxylate
    Patent number: 5753079
    Abstract: Enhanced paper debonding and softening are achieved by producing the paper from an aqueous suspension of fibers which contains one or more cationic agents and one or more compounds of the formula HO(X--O).sub.x --R--(O--Y).sub.y --OH wherein each X is ethylene, straight or branched propylene, or straight or branched butylene; x is 0 to 40; each Y is ethylene, straight or branched propylene, or straight or branched butylene; y is 0 to 40; the sum of (x+y) is 0 to 40; and R is saturated straight, branched or cyclic alkylene containing 4 to 12 carbon atoms.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: May 19, 1998
    Assignee: Witco Corporation
    Inventors: Neil A. Jenny, Robert O. Keys
  • Functional group terminated polymers containing sulfonate group via sulfonation of ethylenically unsaturated polymers
    Patent number: 5753774
    Abstract: Disclosed is a process for producing water-dispersible polymers, particularly condensation polymers such as polyesters, polyethers and polyamides, by forming an ethylenically unsaturated polymeric precursor by condensation polymerization of reactants including ethylenically unsaturated reactants and then sulfonating the ethylenic unsaturation of said polymeric precursor by reacting it with a sulfonating agent such as bisulfite, metabisulfite, or a mixture thereof.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: May 19, 1998
    Assignee: Witco Corporation
    Inventor: Wally L. Chang
  • Fatty alkly diethanolamines to stabilize the optical clarity of polyols containing zinc fatty acid salts
    Patent number: 5741865
    Abstract: The tendency to opacify of a polyol composition comprising one or more zinc fatty acid salts such as zinc stearate, added to form a mold release agent when the polyol is converted to a molded polyurethane article, is retarded by the presence of a small but effective amount of one or more fatty alkyl diethoxylate (e.g. diethanolamine) compounds.
    Type: Grant
    Filed: July 18, 1995
    Date of Patent: April 21, 1998
    Assignee: Witco Corporation
    Inventors: Charles R. Bunting, Donald G. Zelhart
  • Filling compound for fiber optical cables
    Patent number: 5737469
    Abstract: Disclosed are hydrophobic compositions useful for filling the voids within jacketed optical fiber cables. The compositions include about 85 to 95 parts by weight of mineral oil, 5 to 15 parts by weight of a (styrene)-(ethylene/propylene) diblock copolymer having a styrene: (ethylene/propylene) ratio of 37.5:62.5 to 27.5:72.5 and a specific gravity of about 0.90 to 0.95, optional antioxidant, and optional metal deactivator.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: April 7, 1998
    Assignee: Witco Corporation
    Inventors: Michael Costello, Anna Debska-Chwaja, Alan Eckard, William Thalman
  • Organic peroxide stabilization with phosphomolybdic acid
    Patent number: 5719304
    Abstract: Organic peroxide compositions which contain phosphomolybdic acid to retard the rate of decomposition of the peroxide compound are disclosed.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: February 17, 1998
    Assignee: Witco Corporation
    Inventors: Peter Frenkel, Charles Abma
  • Process for softening paper in manufacture
    Patent number: 5716498
    Abstract: Paper having a improved softness is obtained by adding to the fiber suspension from which the paper is made, a quaternized fatty acid trialkanolamine ester salt of the formula (I) ##STR1## in which R.sup.1 CO represents an acyl radical having 6 to 22 carbon atoms, R.sup.2 and R.sup.3, independently of one another, represent hydrogen or R.sup.1 CO, (ALK) is ethyl or propyl, R.sup.4 represents an alkyl radical having 1 to 4 carbon atoms or a (CH.sub.2 CH.sub.2 O).sub.q H group, the sum of m, n and p represents O or numbers from 1 to 12, q represents numbers from 1 to 12 and X represents halide, alkylsulfate or alkylphosphate.
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: February 10, 1998
    Assignee: Witco Corporation
    Inventors: Neil A. Jenny, William J. Zeman
  • Organic peroxide stabilization with .beta.-dicarbonyl compounds
    Patent number: 5714626
    Abstract: Organic peroxide compositions which contain a .beta.-dicarbonyl compound to retard the rate of decomposition of the peroxide compound are disclosed.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: February 3, 1998
    Assignee: Witco Corporation
    Inventors: Charles Abma, Peter Frenkel, Lawrence Bock, Anthony Andrews, Michael Wells
  • Alkoxylate surfactant compositions and the use thereof in paper deinking
    Patent number: 5712233
    Abstract: Enhanced removal of ink in the froth flotation deinking of waste paper is provided by carrying out the flotation with one or more dialkoxylates of certain cyclohexenyl diacids, one or more alkoxylates of C.sub.2-12 polyhydric alcohols, or a mixture thereof. Improved performance is also provided by adding one or more alkyl diglyceryl disulfonates, C.sub.8 to C.sub.18 alpha-olefin sulfonates and/or alkyl ether sulfates.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: January 27, 1998
    Assignee: Witco Corporation
    Inventor: Khalid Rasheed
  • Inhibition of discoloration of cumene hydroperoxide
    Patent number: 5705708
    Abstract: Discoloration of cumene hydroperoxide is reduced or inhibited by adding to the cumene hydroperoxide an effective amount on the order of 30 to 1000 ppm of a stabilizer of the formula R'C(O)OM wherein R' is alkyl, alkenyl, cycloalkyl or aryl containing 1-40 carbon atoms, or the formula R.sub.4 NOH wherein each R is independently alkyl or cycloalkyl containing 1-40 carbon atoms.
    Type: Grant
    Filed: September 23, 1996
    Date of Patent: January 6, 1998
    Assignee: Witco Corporation
    Inventor: Peter Frenkel
  • Diquaternary compounds useful as bleach activators
    Patent number: 5705681
    Abstract: Diquaternary ammonium esters useful as bleach activators are disclosed as are bleach compositions comprising such an ester and peroxygen compound yield peroxide in solution.
    Type: Grant
    Filed: February 23, 1995
    Date of Patent: January 6, 1998
    Assignee: Witco Corporation
    Inventors: Philip H. Steiger, Shaun F. Clancy, Owen Portwood
  • Functional group terminated polymers containing sulfonate group via polymerization of sulfonated monomers
    Patent number: 5698626
    Abstract: Disclosed is a process for producing water-dispersible polymers, particularly condensation polymers such as polyesters, and polyamides, by sulfonating an ethylenically unsaturated monomeric precursor and then condensation polymerizing the sulfonated precursor with a second monomer.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: December 16, 1997
    Assignee: Witco Corporation
    Inventor: Wally L. Chang
  • Cationic polyurethane compositions, quaternary ammonium salts and methods for their preparation
    Patent number: 5696291
    Abstract: The preparation and use of quarternized bis hydroxy alkyl amines by the reaction of a tertiary amine and an alkylene oxide in a strong acid system are disclosed. Cationic polyurethane compositions containing pendent hydroxy alkyl groups and methods for their preparation are also disclosed.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: December 9, 1997
    Assignee: Witco Corporation
    Inventors: Ibrahim Bechara, Thomas R. Baranowski
  • Process for producing quarternary ammonium compounds
    Patent number: 5696292
    Abstract: Process for the preparation of quaternary ammonium compounds, by preparing a mixture of a tertiary amine and a liquid reaction vehicle and adding an alkyl halide to the mixture to produce a quaternary ammonium halide, the liquid reaction medium being a liquid, low volatility, substantially non-toxic diluent having a vapor pressure not greater than about 1 mm. Hg at a temperature of 25.degree. C. and preferably being a fatty acid or a fatty acid mono-, di-, or triglyceride, a mineral oil, or 2-ethylhexanol wherein the alkyl groups comprising the fatty acids or the triglycerides have from about 10 to about 24 carbon atoms, the quaternary ammonium compounds being particularly suited for uses such as deinking of paper in conjunction with appropriate clays, surfactants, flotation agents, anti-static agents and biocides.
    Type: Grant
    Filed: February 10, 1995
    Date of Patent: December 9, 1997
    Assignees: Witco Corporation, Rheox, Inc.
    Inventors: Charles Cody, N. Ben Martin
  • Preparation of beta hydroxylakyl-terminally branched fatty acid amides
    Patent number: 5688978
    Abstract: New and improved thickeners for mixtures of one or more surface active agent include beta-hydroxyalkyl-terminally branched fatty acid amides. The new and improved thickeners achieve the same or better viscosity with lower amounts of mineral salts being required to be added. Concomitant benefits such as improved softening, lubricity, emulsifying and foam intensifying properties are also achieved. The thickeners and cleaner compositions containing them may also be prepared so that they do not contain nitrosamines, unlike prior art amide thickeners. A preferred thickener in accordance with the invention is 2-hydroxypropyl-isostearyl amide. A novel method for making the preferred thickener, so that it is substantially free of undesirable impurities is also provided.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: November 18, 1997
    Assignee: Witco Corporation
    Inventors: Ginette Lefebvre, Line Fiquet
  • Polycyclic fluorophosphites useful as stabilizers
    Patent number: 5688847
    Abstract: Disclosed is a fluorophosphite compound of the formula ##STR1## This compound shows superior performance as a stabilizer in polymers, such as polypropylene, and polyvinyl chloride. Also disclosed is a process for making this compound.
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: November 18, 1997
    Assignee: Witco Corporation
    Inventors: Michael E. Gelbin, Michael H. Fisch, R. David Peveler
  • Stabilizer and blowing agent useful for rigid foamed PVC
    Patent number: 5686025
    Abstract: Improved activation of the blowing agent used to form blown PVC products, as well as thermal stabilization, are provided by a combination of an ester of the formula(R.sup.1).sub.1-2 Sn(--S--R.sup.a --OC(.dbd.O)R.sup.2).sub.2-3wherein R.sup.1 is C.sub.1-4 alkyl, R.sup.a is alkyl, and R.sup.2 is C.sub.6-24 alkyl or alkenyl; one or both of mono (C.sub.1-4 alkyl) and di(C.sub.1-4 alkyl) tin sulfides; a complex of diorganotin oxide with an oxygen-containing acid; and optionally an ester HS--R.sup.c --OC(.dbd.O)R.sup.3 wherein R.sup.c is alkyl and R.sup.3 is C.sub.6-24 alkyl or alkenyl.
    Type: Grant
    Filed: January 5, 1996
    Date of Patent: November 11, 1997
    Assignee: Witco Corporation
    Inventor: Curtis R. Martin
  • C.sub.7 -C.sub.12 diol and diol alkoxylates as coupling agents for surfactant formulations
    Patent number: 5686023
    Abstract: Disclosed are stable monophasic liquid compositions comprising water, one or more cationic, anionic, amphoteric and/or nonionic surfactants, exhibiting partial solubility in water or in concentrated formulations, and one or more coupling agents which are C.sub.7 -C.sub.12 alkane substituted with two hydroxyl groups or alkoxylates thereof with up to 20 moles of one or more of ethylene oxide, propylene oxide and/or butylene oxide.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: November 11, 1997
    Assignee: Witco Corporation
    Inventor: Robert O. Keys
  • Cationic compositions containing diol and/or diol alkoxylate
    Patent number: 5674832
    Abstract: Homogeneous liquid cationic compositions are produced by combining one or more cationic agents with one or more compounds of the formula HO(X--O).sub.x --R--(O--Y).sub.y --OH wherein each X is ethylene, straight or branched propylene, or straight or branched butylene; x is 0 to 40; each Y is ethylene, straight or branched propylene, or straight or branched butylene; y is 0 to 40; the sum of (x+y) is 0 to 40; and R is saturated straight, branched or cyclic alkylene containing 4 to 12 carbon atoms or, if (x=y=0), R contains 7 to 12 carbon atoms. Compositions are easily dispersed in water, even at room temperature, at any concentration and can be made to form clear or translucent products having a desirable uniform appearance, by appropriate selection of components and their amounts.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: October 7, 1997
    Assignee: Witco Corporation
    Inventor: Robert O. Keys
  • Biodegradable ester diquaternary compounds and compositions containing them
    Patent number: 5670472
    Abstract: Disclosed are compounds of the formula (I) ##STR1## useful as fabric softening compounds which exhibit enhanced biodegradability.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: September 23, 1997
    Assignee: Witco Corporation
    Inventor: Robert O. Keys