Patents Assigned to Witco Corporation
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Patent number: 6660781Abstract: A process for preparing a polyurethane foam, especially according to the one-shot foaming process the quasi-prepolymer process and the prepolymer process, by reactions between a polyisocyanate and an active hydrogen-containing component including water and an organic polyol wherein said reactions are conducted in the presence of a reaction product formed by reaction between a tertiary amnine and an aryloxy substituted carboxylic acid.Type: GrantFiled: January 5, 1999Date of Patent: December 9, 2003Assignee: Witco CorporationInventors: Hassan El Ghobary, Louis Muller
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Patent number: 6521683Abstract: Antistatic agents for reducing and eliminating static electric charges on resins, particularly acrylic resins, including an antistatically effective amount of at least one substituted imidazolinium salt of alkylbenzene sulfonic acid having the formula: wherein R1 and R2 are the same or different and are alkyl groups having 6 or more carbon atoms. Also contemplated are methods, compositions and articles of manufacture which include the above mentioned antistatic agent and are added to or on the resins and further contain fatty acids or optical brighteners.Type: GrantFiled: April 26, 1999Date of Patent: February 18, 2003Assignee: Witco CorporationInventors: Roy Simmons, William P. Chatham, Michael L. Whitlock, James J. Ward
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Patent number: 6451731Abstract: An emulsifiable pesticidal suspension concentrate composition is provided comprising (a) a pesticidally effective amount of a liquid pesticide of low solubility in water, for example a chloroacetamide herbicide such as acetochlor, (b) a pesticidally effective amount of a solid particulate pesticide, more particularly a salt-forming pesticide, for example a glyphosate herbicide, in solid particulate form, dispersed in the liquid pesticide, (c) a stabilizing amount of a suspension aid, (d) an emulsifying agent in an amount sufficient to emulsify the concentrate composition in a suitable volume of water to form a dilute sprayable composition, and (e) zero to an assay adjusting amount of an inert liquid in which the liquid pesticide is soluble or miscible. The concentrate composition is substantially non-aqueous. The liquid and solid pesticides are selected to be chemically compatible with each other.Type: GrantFiled: August 31, 2000Date of Patent: September 17, 2002Assignees: Monsanto Company, CK Witco CorporationInventors: Henry E. Agbaje, Deborah H. Carter, Tracy A. Powers, Shannon K. Hawkins, Alan J. Stern, Shawn Zhu
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Publication number: 20020099118Abstract: Disclosed herein is a rubber composition comprising:Type: ApplicationFiled: November 9, 2001Publication date: July 25, 2002Applicant: WITCO CORPORATION, a corporation of the State of DelawareInventors: Richard W. Cruse, Robert J. Pickwell, Keith J. Weller, Eric R. Pohl
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Publication number: 20020055564Abstract: Disclosed herein is a blocked mercaptosilane selected from the group consisting ofType: ApplicationFiled: November 9, 2001Publication date: May 9, 2002Applicant: WITCO CORPORATIONInventors: Richard W. Cruse, Robert J. Pickwell, Keith J. Weller, Eric R. Pohl
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Publication number: 20020055568Abstract: A blocked mercaptosilane of the structure:Type: ApplicationFiled: November 9, 2001Publication date: May 9, 2002Applicant: WITCO CORPORATIONInventors: Richard W. Cruse, Robert J. Pickwell, Keith J. Weller, Eric R. Pohl
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Publication number: 20020055646Abstract: Disclosed herein is a process for the manufacture of a blocked mercaptosilane wherein the process is selected from the group consisting of: (1) reacting a mercaptosilane and a monoacid anhydride corresponding to a thioester group present in the desired product; (2) reacting an alkali salt of a mercaptosilane with the appropriate acid anhydride or acid halide; (3) transesterifying a mercaptosilane and an ester in the presence of an alkali metal of an acid corresponding to the ester; (4) transesterifying a thioester silane and another ester; (5) transesterifying a 1-sila-2-thiacyclopentane or a 1-sila-2-thiacyclohexane and an ester; and (6) reacting an alkali metal salt of a thioacid with a haloalkylsilane.Type: ApplicationFiled: November 9, 2001Publication date: May 9, 2002Applicant: WITCO CORPORATIONInventors: Richard W. Cruse, Robert J. Pickwell, Keith J. Weller, Eric R. Pohl
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Publication number: 20020051890Abstract: The present invention is directed to a process comprising deblocking a silane of the formula (RIC(═O)O)yC6RII6-y-z[CxH2xSi(ORIII)3-a(RIV)a]z where RI is H, CH3 or RVO; RII is H or RVO; RIII is alkyl, phenyl or acyl from 1 to 6 carbon atoms; RIV is hydrogen, alkyl or phenyl from 1 to 6 carbon atoms; RV is a linear or branched alkyl group from 1 to 4 carbon atoms; y is an integer from 1 to 3; z is an integer from 1 to 3; x is an integer from 2 to 6 and a is an integer from 0 to 2 to yield a phenolic silane. Also disclosed are processes for making a blocked silane having the above formula.Type: ApplicationFiled: October 17, 2001Publication date: May 2, 2002Applicant: WITCO CORPORATIONInventors: Eric R. Pohl, Scot M. Turner
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Patent number: 6362264Abstract: Disclosed is a composition of matter which provides heat and color stability to polyvinyl chloride resins, especially of the flexible type, said composition consists essentially of (A) about 10 to about 40 parts by weight of a zinc carboxylate; (B) about 50 to about 80 parts by weight of an alkyl ester of thiodipropionic acid; and (C) abqut 5 to about 20 parts by weight of a phenolic antioxidant. A PVC resin containing the above composition of matter is also disclosed.Type: GrantFiled: December 20, 1996Date of Patent: March 26, 2002Assignee: CK Witco CorporationInventor: Kook Jin Bae
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Patent number: 6328294Abstract: An elastomeric spring system having non-linear force-deflection characteristics and low rebound is provided. The system comprises a housing and a plurality of first and second spring members movably disposed in alternating relationship within a bore defined by the housing. The first and second spring members are preferably formed from polyurethane such as the two part castable urethanes made from polyether-isocyanate or polyester-isocyanate prepolymers cured with organic diamine or polyol materials. When subject to a force along the axis of deflection, the first spring member is adapted to expand and progressively envelope the second spring members until the hemispherical ends of two of the first spring members meet within the first spring member, thereby causing the force-deflection characteristics of the spring to be nonlinear.Type: GrantFiled: November 2, 1999Date of Patent: December 11, 2001Assignee: CK Witco CorporationInventor: Richard L. Palinkas
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Patent number: 6323277Abstract: Oligomers of the formula: [R3SiO½]m[O½Si(R2)O½]n[SiO{fraction (3/2)}R]o[SiO{fraction (4/2)}]p (I) wherein each R is selected individually from the group consisting of B, R1,—OR2, R3 and R4; B is an organosilyl functional group bridged to the Si atom of the siloxane oligomer backbone by an Si—C bond; each R1 is independently a saturated or aromatic hydrocarbon group of 1 to 16 carbon atoms; each R2 is independently a group as defined for R1 or an acyl group; and each R3 is independently a monovalent organic radical containing an aliphatically unsaturated hydrocarbon group and each R4 is a monovalent organic radical linked to the Si atom of the siloxane oligomer backbone by an Si—C bond, which does not include an aliphatically unsaturated hydrocarbon group and which has thereon one or more members of the group selected from ether, polyether, ester, polyester, carbamate, polyurethane, isocyanurate, thioether, polysulfideType: GrantFiled: March 11, 1999Date of Patent: November 27, 2001Assignee: Witco CorporationInventors: Herbert E. Petty, Robert Pickwell
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Patent number: 6319982Abstract: Novel hindered alkoxy siloxane compounds and compositions containing hindered alkoxy siloxane compounds are provided. The compositions include a polymer/crosslinking system which is composed of a self crosslinking resin comprised of a silicone fluid modified with pendant or terminal silanes containing hindered alkoxy groups, or a silanol fluid and a crosslinking compound, of a mixture thereof. These components are first emulsified and then formulated into a latex sealant by blending with a separate emulsion of an appropriate catalyst. Crosslinking occurs upon drying of the emulsion.Type: GrantFiled: June 25, 1999Date of Patent: November 20, 2001Assignee: CK Witco CorporationInventors: Misty Weiyu Huang, Bruce A. Waldman, Jeff A. Cooke
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Patent number: 6310170Abstract: Compositions comprising a silylated polymer and an adhesion promoter, the silylated polymer having an inorganic or organic backbone and at least two groups thereon selected from alkoxysilyl, aryloxysilyl, alkyloximinosilyl and silanol groups and the adhesion promoter being a silane adhesion promoter of the formula: R1 is a branched or cyclic alkylene group, an arylene group or an alkarylene group, any of which may be optionally interrupted by one or more ether oxygen atoms or a (poly)sulfide bridge, provided that R1 has at least 4 carbon atoms; R2 is an alkyl, aryl or alkaryl radical having 1 to 6 carbons; R3 is a C1 to C6 alkoxy group or a C3 to C5 ketoximato group; R4 is hydrogen, a hydrocarbon group, which may optionally be substituted, or a group which will thermally deblock to form an amine group containing the nitrogen atom to which it is attached; and z is 0 or 1.Type: GrantFiled: August 17, 1999Date of Patent: October 30, 2001Assignee: CK Witco CorporationInventors: Robert R. Johnston, Patrice Lehmann
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Patent number: 6278022Abstract: Disclosed herein is an improvement in a method for making compounds having the structural formulae (I) or (II): wherein: X is a) phenyl; lower phenylalkoxy; phenoxy; or benzyl; or b) one substituent from group a) and one or more substituents selected from C1-C4 alkoxy; hydroxyl; halogen; lower alkyl; and lower alkylthio; or c) along with the phenyl to which it is attached, forms a multiple fused ring heterocycle such as dibenzofuranyl; Y is H, C1-C4 alkanoyl, C1-C4 haloalkenoyl, dialkoxyphosphoryl, alkylaminocarbonyl, haloalkylsulfonyl, or C1-C4 alkoxy carbonyl; and R is H, C1-C6 alkyl, C1-C6 alkoxy, C3-C6 cycloalkoxy, haloalkyl, alkoxyalkyl, arylalkoxy, alkenyl, alkylthio, alkoxycarbonyl, alkylamino, heteroaryl, arylalkyl, haloalkoxy, aryloxy, or C3-C6 cycloalkyl; and Z is O or S, wherein the improvement comprises the steps of: A) selecting as a starting material a compound of the structural formula B) dissolving compound III in an organic solvent selected from the groupType: GrantFiled: November 1, 1999Date of Patent: August 21, 2001Assignee: CK Witco CorporationInventor: Haihong Jin
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Patent number: 6265456Abstract: An improved process is provided for the preparation of siloxane-oxyalkylene and siloxane-alkyl copolymer compositions via a hydrosilation reaction in the presence of high boiling point natural vegetable oils as the reaction solvent. The reaction solvent need not be removed from the block copolymer product, and indeed is beneficial to remain with the copolymer particularly when the copolymer is used as a surfactant for polyurethane foam formulations. Soybean oil and linseed oil are the preferred high boiling natural oil solvents when the copolymer product is to be used in the preparation of the surfactants for polyurethane foams. High resiliency polyurethane foam prepared with these natural oils present in the surfactant preparation afforded improved compression sets, wet compression sets and humid aged compression sets.Type: GrantFiled: October 13, 1999Date of Patent: July 24, 2001Assignee: CK Witco CorporationInventors: Paul E. Austin, Edmond J. Derderian, Robert A. Kayser
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Patent number: 6258914Abstract: Alkoxy silane oligomers which have a non-hydrolyzable carbon bridged bond to another silane functionality are taught herein, as well as their manufacture and utility.Type: GrantFiled: October 15, 1999Date of Patent: July 10, 2001Assignee: C. K. Witco CorporationInventors: Shiu-Chin Huang Su, Herbert E. Petty, Fredrick D. Osterholtz
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Patent number: 6235681Abstract: The present invention teaches the composition of terminally modified, amino, polyether, siloxanes, known henceforth as amino siloxane alkokylates, and their use as adjuvants. The amino siloxane alkoxylates of the present invention enhance the efficacy of agrichemicals on plants as compared to conventional TSE's alone. The amino siloxane alkoxylates have at one end, an amine functionality and at the other end, a polyalkyleneoxide functionality.Type: GrantFiled: February 24, 2000Date of Patent: May 22, 2001Assignee: CK Witco CorporationInventor: George A. Policello
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Patent number: 6225267Abstract: The present invention relates to an emulsifier composition suitable for mixing with oil to form lubricants comprising at least one non-extracted salt of a natural petroleum sulfonic acid having about 15 wt-% to about 30 wt-% active content; at least one branched chain alkylaryl sulfonic acid or salt thereof; at least one linear alkylaryl sulfonic acid or salt thereof; and optionally at least one other sulfonic acid or salt thereof for adjusting the average equivalent equivalent weight of the resultant emulsifier composition.Type: GrantFiled: April 4, 2000Date of Patent: May 1, 2001Assignee: CK Witco CorporationInventors: Alan Eckard, Joseph A. Weaver, Jr., Igor Riff
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Patent number: 6221954Abstract: 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: GrantFiled: June 5, 1995Date of Patent: April 24, 2001Assignee: Witco CorporationInventors: Ibrahim Bechara, Thomas R. Baranowski
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Patent number: 6211345Abstract: Sulfur-containing norbornanyl silanes are prepared in a simple, solventless manner by the reaction of a norbornenylsilane with sulfur in the presence of a chlorosilane. The resulting silanes may be used without further purification. The silanes were found to give good properties in rubber compositions for low-rolling-resistance tire applications.Type: GrantFiled: December 22, 1999Date of Patent: April 3, 2001Assignee: Witco CorporationInventors: Keith J. Weller, Lesley Hwang