Patents Assigned to Crompton Corporation
  • Publication number: 20040029986
    Abstract: A process for preparing a polyurethane foam is provided which comprises reacting a polyisocyanate and an active hydrogen-containing component, including water and an organic polyol, in the presence of a catalytically effective amount of a delayed action amine catalyst system, and optionally an organotin catalyst.
    Type: Application
    Filed: August 6, 2002
    Publication date: February 12, 2004
    Applicant: CROMPTON CORPORATION
    Inventors: Hassan El Ghobary, Louis Muller
  • Patent number: 6689894
    Abstract: A process for preparing fatty acid zinc salts comprising the steps of: stirring a slurry mixture comprising zinc oxide, at least one catalyst, and water at a temperature in the range of from about 55° C. to about 65° C.; adding at least one fatty acid in its liquid state to said stirred slurry mixture; and reacting the fatty acid with the zinc oxide in the presence of the catalyst in the water at a temperature of from about 60° C. to about 75° C. until substantially all of the fatty acid has reacted. The final product mixture can then be filtered and dried to give a fatty acid zinc salt in high yield.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: February 10, 2004
    Assignee: Crompton Corporation
    Inventor: Bing-Lin Chen
  • Publication number: 20040009117
    Abstract: A method of making nanosized copper (I) compounds, in particular, copper (I) halides, pseudohalides, and cyanocuprate complexes, in reverse micelles or microemulsions is disclosed herein. The method of the invention comprises (a) dissolving a copper (II) compound in the polar phase of a first reverse micelle or microemulsion, (b) dissolving a copper (II) to copper (I) reducing agent or a pseudohalide salt in the polar phase of a second sample of the same reverse micelle or microemulsion, (c) mixing the two reverse micelle/microemulsions samples to form nanometer sized copper (I) compounds and (d) recovering said nanometer sized copper (I) compounds. The present invention is also directed to the resultant nanosized copper (I) compounds, such as copper (I) chloride, copper (I) cyanide, and potassium cyanocuprate complexes having an average particle size of about 0.1 to 600 nanometers.
    Type: Application
    Filed: April 16, 2003
    Publication date: January 15, 2004
    Applicant: CROMPTON CORPORATION
    Inventors: Kenrick M. Lewis, Chi-Lin O'Young
  • Patent number: 6673359
    Abstract: 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: Grant
    Filed: March 14, 2001
    Date of Patent: January 6, 2004
    Assignee: Crompton Corporation
    Inventor: George A. Policello
  • Patent number: 6667282
    Abstract: Disclosed herein is a composition comprising: (A) a lubricant, and (B) at least one alkyl hydrazide compound of the formula:  wherein R1 is a hydrocarbon or functionalized hydrocarbon of from 1 to 30 carbon atoms, R2 and R3 are independently selected from the group consisting of hydrocarbon or functionalized hydrocarbons of from 1 to 30 carbon atoms and hydrogen.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: December 23, 2003
    Assignee: Crompton Corporation
    Inventor: Theodore E. Nalesnik
  • Publication number: 20030232954
    Abstract: A polyurethane composition is disclosed that comprises an isocyanate-terminated polyurethane prepolymer, and a curative agent including a polyaspartic ester. Desirably, the curative agent includes a co-curative selected from the group consisting aromatic diamines and diols. This composition is useful for rotationally casting cylindrical parts. The invention includes the method for coating a cylindrical object.
    Type: Application
    Filed: June 14, 2002
    Publication date: December 18, 2003
    Applicant: CROMPTON CORPORATION
    Inventor: Vincent J. Gajewski
  • Publication number: 20030232937
    Abstract: A process is disclosed for the preparation of a poly(&agr;-olefin) polymer wherein the process comprises polymerizing at least one &agr;-olefin in the presence of hydrogen and a catalytically effective amount of catalyst comprising the product obtained by combining a metallocene catalyst with a cocatalyst, the metallocene catalyst being at least one meso compound of general formula: 1
    Type: Application
    Filed: June 4, 2002
    Publication date: December 18, 2003
    Applicant: CROMPTON CORPORATION
    Inventor: Anthony-Joseph DiMaio
  • Patent number: 6663931
    Abstract: The invention pertains to the use of a white oil having a select viscosity as an extrusion lubricant for PVC, including PVC potable water pipe.
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: December 16, 2003
    Assignee: Crompton Corporation & Petro-Canada
    Inventor: Stephen Cedric Cohen
  • Patent number: 6660181
    Abstract: A method is disclosed for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers a polymerization inhibiting amount of a mixture comprising A) a first inhibitor comprising 4-amino-2,2,6,6-tetramethylpiperidinyloxy, wherein said amino group is a primary, secondary, or tertiary amino group; and B) at least one other inhibitor having the structural formula: wherein: R1 and R4 are independently selected from the group consisting of hydrogen, alkyl, and heteroatom-substituted alkyl; R2 and R3 are independently selected from the group consisting of alkyl and heteroatom-substituted alkyl; X1 and X2 (1) are independently selected alkyl groups of 1 to 15 carbon atoms or (2) taken together, form a ring structure with the nitrogen.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: December 9, 2003
    Assignee: Crompton Corporation
    Inventors: Brigitte Benage, Angela M. Edwards, Vilen Kosover, Gan Wang, Anthony Gentile, Jesus R. Fabian, Gerald J. Abruscato
  • Publication number: 20030225195
    Abstract: Disclosed herein is a rubber composition comprising:
    Type: Application
    Filed: February 10, 2003
    Publication date: December 4, 2003
    Applicant: Crompton Corporation
    Inventors: Richard W. Cruse, Robert J. Pickwell, Keith J. Weller, Eric Pohl
  • Publication number: 20030220513
    Abstract: Iminoorganosilanes may be prepared by reacting aminoorganosilanes with organoimines by an amine exchange reaction. The resultant iminoorganosilanes can then be catalytically reduced to produce secondary and tertiary amino silanes. Imidoorganosilanes can be prepared by a similar amine reaction between aminoorganosilanes and organoimides. The imidoorganosilanes can also be reacted to produce tertiary amines. Water-sensitive silane reactants may be employed to yield water-sensitive imino, imido, or amino silane products.
    Type: Application
    Filed: June 10, 2003
    Publication date: November 27, 2003
    Applicant: CROMPTON CORPORATION, a corporation of the State of Delaware
    Inventors: Steven C. Gedon, Andrea Trotto
  • Publication number: 20030220463
    Abstract: Polyurethane dispersions are disclosed that are prepared from low free-diisocyanate polyurethane prepolymers modified by the addition of pendent anionic, cationic, or nonionic moieties.
    Type: Application
    Filed: May 16, 2003
    Publication date: November 27, 2003
    Applicant: CROMPTON CORPORATION
    Inventors: Ibrahim Bechara, Anatoly Lipkin
  • Patent number: 6649692
    Abstract: An organopolysiloxane composition which comprises: a) organopolysiloxane I of the general formula: A(Si(R1)2O)a(SiR1O)bSi(R1)2A R2(NH2CH2CH2)cNHR3; b) organopolysiloxane II of the general formula: (AB)nA  where A is a polysiloxane unit of the general formula: (X(CaH2aO)bR2(Si(R1)2OcR2(OCaH2a)bX)  and B is a polyalkyleneoxide unit of the general formula (YO(CaH2aO)dY); c) organopolysiloxane III of the general formula: A(Si(R1)2O)x(Si(R1)(E)O)y(Si(R1)(G)O)zSi(R1)2A  G is —(R2)bO(C2H4O)c(C3H6O)dR3 group; and d) organopolysiloxane IV of the general formula: A(Si(R1)2O)x(Si(R1)(G)ySi(R1)2A  where G is —(R2)bO(C2H4O)c(C3H6O)dR3 group.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: November 18, 2003
    Assignee: Crompton Corporation
    Inventors: Hua Yu, John L. Lombardo
  • Publication number: 20030212291
    Abstract: Alkanediol ortho- and meta-diamino benzoates are prepared by reacting either ortho- or meta-amino benzoic acid esters with an alkanediol in the presence of a transesterification catalyst. The ortho-diamine may alternatively be prepared by reacting isatoic anhydride with the alkanediol. These alkanediol ortho- and meta-diamino benzoates are useful in the curing of urethane prepolymers to produce novel polyurethane urea elastomers.
    Type: Application
    Filed: May 2, 2002
    Publication date: November 13, 2003
    Applicant: CROMPTON CORPORATION
    Inventors: Vincent J. Gajewski, Franklin H. Barrows
  • Publication number: 20030199619
    Abstract: Disclosed herein are blocked mercaptosilane condensates that are useful as coupling agents in mineral filled elastomer compositions. Among the advantages in the use of these blocked mercaptosilane condensates over the use of previously described blocked mercaptosilanes are the release of less volatile organic compounds during the elastomer compounding process and lower coupling agent loading requirements.
    Type: Application
    Filed: April 23, 2002
    Publication date: October 23, 2003
    Applicant: CROMPTON CORPORATION
    Inventor: Richard W. Cruse
  • Patent number: 6635700
    Abstract: A composition of matter is disclosed wherein the composition comprises: A) at least one latent mercaptosilane coupling agent; and B) at least one additional mercaptan. Preferably, the composition comprises: A) at least one sulfur vulcanizable rubber; B) at least one latent mercaptosilane coupling agent; C) at least one latent mercaptosilane activator; D) at least one filler; and, optionally, E) at least one additional mercaptosilane. A two pass process for preparing cured articles, such as tires and/or tire treads, which employs the composition is also disclosed.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: October 21, 2003
    Assignee: Crompton Corporation
    Inventors: Richard W. Cruse, Martin J. Hannon, Prashant G. Joshi, Frederick D. Osterholtz, Robert J. Pickwell
  • Publication number: 20030195311
    Abstract: A free radical polymerization process is provided which comprises polymerizing at least one radically polymerizable monomer in the presence of the multi-component liquid azo-peroxide initiator mixture under polymerization conditions to provide a radically polymerized homopolymer or copolymer, the multi-component liquid azo-peroxide initiator mixture comprising (a) at least 6 different azodinitriles; and (b) one or more liquid organic peroxides. Also provided is the stable multi-component liquid azo-peroxide initiator mixture.
    Type: Application
    Filed: April 16, 2002
    Publication date: October 16, 2003
    Applicant: CROMPTON CORPORATION
    Inventors: Elisa Martinez, Peter Frenkel
  • Publication number: 20030195279
    Abstract: Heterocyclic tin compounds, useful as flame retardants and/or as smoke suppressants for halogen-containing polymers, e.g., polyvinyl chloride resins having application as wire and cable coatings, are obtained by reacting a trisubstituted triazine such as melamine with a tin-containing compound such as tin tetrachloride.
    Type: Application
    Filed: April 9, 2002
    Publication date: October 16, 2003
    Applicant: CROMPTON CORPORATION.
    Inventors: Mukund Shah, Michael H. Fisch, Ulrich Stewen, Radu Bacaloglu
  • Publication number: 20030191206
    Abstract: Semiflexible and flexible polyurethane foams having significantly reduced fogging and improved physical properties such as tensile strength, useful in the transportation industry, are obtained from a polyurethane foam-forming reaction-mixture containing as a polyester polyol for the foam a polyester polyol substantially free of any ether components which comprising:
    Type: Application
    Filed: April 8, 2002
    Publication date: October 9, 2003
    Applicant: CROMPTON CORPORATION
    Inventor: Wally Liyuan Chang
  • Patent number: 6627682
    Abstract: The present invention is directed to fast reacting epoxy compositions employing select unidentate and chelated Ti(IV) and Sn(II) curing catalysts.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: September 30, 2003
    Assignee: Crompton Corporation
    Inventors: Antonio Chaves, Eric R. Pohl, Frederick D. Osterholtz