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.
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.
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.
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.
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.
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.
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
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.
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
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
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.
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.
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
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.
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
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.
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
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:
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