Patents by Inventor Stephen L. Goldstein

Stephen L. Goldstein has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20040197481
    Abstract: The present invention provides a urethane prepolymer and method of making said prepolymer useful in forming a moisture curable coating on an object. The prepolymer of the present invention is made by the process comprising reacting a HDI-uretidione with a polyol such that a moisture-curable urethane prepolymer having a viscosity at 25° C. less than about 3000 cP is formed. Moreover, the HDI-uretidione and the polyol are of sufficient amounts that the reaction index is at least about 2. The present invention also provides a method of coating a substrate with the prepolymer of the present invention.
    Type: Application
    Filed: April 2, 2003
    Publication date: October 7, 2004
    Inventors: Peter J. Whitman, Daniel B. Pourreau, Michael J. Morgan, Stephen L. Goldstein
  • Patent number: 6780951
    Abstract: Allyl carbamates are disclosed. The allyl carbamates are prepared by reacting an isocyanate with an allylic alcohol or alkoxylated allylic alcohol. Suitable isocyanates are selected from hexamethylene diisocyanate (HDI), HDI biuret, dimer, HDI trimer, HDI allophanate, isophorone diisocyanate (IPDI), IPDI trimer, IPDI allophanate, bis(isocyanatocyclohexyl)methane, and mixtures thereof. The allyl carbamates have at least two allyl functional groups per molecule. UV-curable and air-drying coatings formulated from the allyl carbamates show excellent chemical resistance and physical properties.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: August 24, 2004
    Assignee: Arco Chemical Technology, L.P.
    Inventors: Daniel B. Pourreau, Peter J. Whitman, Stephen L. Goldstein, Stephen H. Harris
  • Publication number: 20030130469
    Abstract: Allyl carbamates are disclosed. The allyl carbamates are prepared by reacting an isocyanate with an allylic alcohol or alkoxylated allylic alcohol. Suitable isocyanates are selected from hexamethylene diisocyanate (HDI), HDI biuret, dimer, HDI trimer, HDI allophanate, isophorone diisocyanate (IPDI), IPDI trimer, IPDI allophanate, bis(isocyanatocyclohexyl)methane, and mixtures thereof. The allyl carbamates have at least two allyl functional groups per molecule. UV-curable and air-drying coatings formulated from the allyl carbamates show excellent chemical resistance and physical properties.
    Type: Application
    Filed: December 9, 2002
    Publication date: July 10, 2003
    Applicant: ARCO Chemical Technology, L.P.
    Inventors: Daniel B. Pourreau, Peter J. Whitman, Stephen L. Goldstein, Stephen H. Harris
  • Patent number: 6555596
    Abstract: Allyl carbamates are disclosed. The allyl carbamates are prepared by reacting an isocyanate with an allylic alcohol or alkoxylated allylic alcohol. Suitable isocyanates are selected from hexamethylene diisocyanate (HDI), HDI biuret, dimer, HDI trimer, HDI allophanate, isophorone diisocyanate (IPDI), IPDI trimer, IPDI allophanate, bis(isocyanatocyclohexyl)methane, and mixtures thereof. The allyl carbamates have at least two allyl functional groups per molecule. UV-curable and air-drying coatings formulated from the allyl carbamates show excellent chemical resistance and physical properties.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: April 29, 2003
    Assignee: Arco Chemical Technology, L.P.
    Inventors: Daniel B. Pourreau, Peter J. Whitman, Stephen L. Goldstein, Stephen H. Harris
  • Patent number: 6350811
    Abstract: A water-dispersible polyurethane resin is disclosed. The resin comprises recurring units of an alkoxylated phenolic resin, a carboxylate-containing diol, and a multifunctional isocyanate. The resin, which can be neutralized, and/or chain-extended, is dispersed in water to form a polyurethane dispersion. Coatings derived from the polyurethane dispersions have excellent acid and chemical resistance.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: February 26, 2002
    Assignee: ARCO Chemical Technology, L.P.
    Inventors: Carmen L. Rodriguez, Stephen L. Goldstein
  • Patent number: 6245877
    Abstract: A moisture-cure urethane composition is disclosed. The urethane is formulated from an NCO-terminated alkoxylated phenolic resin that has long oxyalkylene chains. It has greater than 70 wt % solids and has excellent resistance to acids, bases, and chemicals.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: June 12, 2001
    Assignee: ARCO Chemical Technology, L.P.
    Inventors: Carmen L. Rodriguez, Stephen L. Goldstein
  • Patent number: 5948944
    Abstract: A multi-step process for producing DNT employing a mononitration step in a single liquid phase at an elevated temperature using a carefully controlled amount of water, followed by a phase separation step prior to dinitration of the MNT present in the resulting organic phase. This process results in a DNT product with a desired isomer ratio of 2,4-DNT to 2,6-DNT and provide relatively fast nitration rates with less by-products.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: September 7, 1999
    Assignee: Arco Chemical Technology, L.P.
    Inventors: Chunjie Zhang, Buford T. Pennington, Jeffrey W. Baird, Allen B. Quakenbush, Stephen L. Goldstein, Donald L. Lickei, Peter J. Whitman
  • Patent number: 5861193
    Abstract: The present invention relates to the preparation and use of novel polyurethane polyuretidione crosslinking agents in solvent and water borne coatings systems. These polyuretidione polyurethanes are characterized by their relatively low solution viscosity, and the ability to provide a relatively high crosslink density in the final, cured film, and thereby, coatings with the excellent physical properties and resistance to chemical and environmental exposure of known polyurethane systems without the potential for worker exposure to toxic isocyanates. This invention also relates to a process for the production of these polyuretidiones and their use in pseudo-one and two component coating compositions.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: January 19, 1999
    Assignee: Arco Chemical Technology, L.P.
    Inventors: Stephen L. Goldstein, James M. O'Connor, Donald L. Lickei, Henry G. Barnowski, Jr., Willard F. Burt, Ronald S. Blackwell
  • Patent number: 5856420
    Abstract: Disclosed are new coatings compositions based on an HDI isocyanurate or biuret polyisocyanate and a bis(imine) reaction product of a diaminoalkane containing between two and five carbon atoms with an alkyl aldehyde containing between four and seven carbon atoms (advantageously a bis(imine) product of the reaction of 1,4-diaminobutane and isobutyraldehyde). The latter bis(imine) is completely miscible in HDI isocyanurate and biuret polyisocyanates, and, as a reactive diluent, allows the preparation of high performance coatings formulations that require only small amounts of solvents to achieve a conveniently sprayable viscosity.
    Type: Grant
    Filed: April 17, 1996
    Date of Patent: January 5, 1999
    Assignee: Arco Chemical Technology, L.P.
    Inventors: Benjamin W. Tucker, Henry G. Barnowski, Jr., Edward A. Barsa, Peter J. Whitman, Augustin T. Chen, Willard F. Burt, Stephen L. Goldstein, James M. O'Connor
  • Patent number: 5814689
    Abstract: The present invention relates to the preparation and use of novel polyurethane polyuretidione crosslinking agents in solvent and water borne coatings systems. These polyuretidione polyurethanes are characterized by their relatively low solution viscosity, and the ability to provide a relatively high crosslink density in the final, cured film, and thereby, coatings with the excellent physical properties and resistance to chemical and environmental exposure of known polyurethane systems without the potential for worker exposure to toxic isocyanates. This invention also relates to a process for the production of these polyuretidiones and their use in pseudo-one and two component coating compositions.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: September 29, 1998
    Assignee: Arco Chemical Technology, L.P.
    Inventors: Stephen L. Goldstein, James M. O'Connor, Donald L. Lickei, Henry G. Barnowski, Jr., Willard F. Burt, Ronald S. Blackwell
  • Patent number: 5506328
    Abstract: This invention relates to a process for coating a substrate comprising contacting the substrate with a low volatile organics, moisture curable, two-component coating composition comprising an admixture of an A-side and a B-side, said A-side comprising an aliphatic polyisocyanate having an isocyanate index relative to the number of isocyanate-reactive groups in said coating composition of at least about 200, preferably at least about 300, more preferably at least about 500, said B-side comprising a tertiary amine catalyst and optionally an isocyanate-reactive compound selected from the group consisting of monoahls, polyols, imines, oxazolidines, and combinations thereof, said coating composition optionally containing a solvent in an amount of less than about 45%, based upon the weight of the polyisocyanate in said coating composition, said coating composition having a viscosity as measured by ZAHN cup 2 of less than about 200 seconds, said composition being essentially free of any volatile mono- and di-isocyan
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: April 9, 1996
    Assignee: Olin Corporation
    Inventors: Kiran B. Chandalia, Michael J. Morgan, James M. O'Connor, Stephen L. Goldstein
  • Patent number: 5461135
    Abstract: Disclosed herein is a liquid, monoallophanate-containing, monouretidione-containing polyisocyanate composition characterized by having (i) an isocyanate functionality of between 2.8 and 6.5, (ii) a free NCO content of 10% to 47% by weight, (iii) a viscosity of less than 1000 cp (25.degree. C.), and (iv) the presence of monouretidione and monoallophanate groups in a molar ratio of said monouretidione groups to said monoallophanate groups of between about 20:1 and about 1:5. Also disclosed is a process for producing the above compositions, as well as their use, optionally in blocked form in one or two component coating compositions.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: October 24, 1995
    Assignee: Olin Corporation
    Inventors: Adam G. Malofsky, Stephen L. Goldstein
  • Patent number: 5461020
    Abstract: This invention relates to a catalyst composition comprising the reaction product of (a) an inorganic substrate containing a reactive hydroxyl group and selected from the group consisting of silica compounds, alumina compounds, and combinations thereof, (b) a catalyst containing terminal unsaturation and selected from the group consisting of 4-dialkylamino pyridines, 4-(N-arylalkyl-N-alkyl)amino pyridines, and combinations thereof, and (c) a hydrosilane. Also disclosed is a process for making the catalyst composition, as well as the catalyst composition by empirical structural formula.
    Type: Grant
    Filed: May 11, 1994
    Date of Patent: October 24, 1995
    Assignee: Olin Corporation
    Inventors: Stephen L. Goldstein, Anthony D. Hamer, Lawrence E. Katz, Michael J. McGeary, Curtis P. Smith
  • Patent number: 5315004
    Abstract: This invention relates to a process for preparing a dimer by the steps of: (a) cyclodimerizing a polyisocyanate in the presence of a dimerization catalyst which is covalently bound to an insoluble inorganic matrix by contacting said polyisocyanate with said catalyst at a temperature of between about 20 and about 135.degree. C. in a reaction to form an uretidione-containing cyclodimerized isocyanate wherein a portion of the isocyanate moieties comprising said polyisocyanate are converted to uretidione groups, and (b) separating said catalyst from said cyclodimerized isocyanate in order to stop said reaction after a desired amount of isocyanate moieties in said polyisocyanate have been converted to uretidione moieties.
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: May 24, 1994
    Assignee: Olin Corporation
    Inventors: Stephen L. Goldstein, Anthony D. Hamer, Lawrence E. Katz, Michael J. McGeary, Curtis P. Smith
  • Patent number: 5298431
    Abstract: This invention relates to a multi-step process for isolating a cyclotrimerized isocyanate from mixture containing said cyclotrimerized isocyanate plus an isocyanate oligomer which comprises the steps of: (a) contacting said mixture with a liquid solvent to provide a solvent-containing mixture, (b) extracting said solvent-containing mixture by liquid-liquid extraction to cause said solvent-containing mixture to elute into an extractate and a residue, wherein said extractate is a cyclotrimerized isocyanate that is essentially oligomer-free and is further characterized by having reduced viscosity relative to said solvent-containing mixture, and (c) separating uncyclotrimerized monomer from said extractate to provide a reduced viscosity trimer product that is essentially free of monomer. Also disclosed is the reduced-viscosity product produced by this process.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: March 29, 1994
    Assignee: Olin Corporation
    Inventors: Stephen L. Goldstein, Edward A. Barsa
  • Patent number: 5221743
    Abstract: This invention relates to a process for preparing a trimer by the steps of: (a) cyclotrimerizing a polyisocyanate in the presence a polymer-bound trimerization catalyst by contacting said polyisocyanate with said catalyst at a temperature of between about 20.degree. and about 135.degree. C. in a reaction to form an isocyanurate-containing cyclotrimerized isocyanate wherein a portion of the isocyanate moieties comprising said polyisocyanate are converted to isocyanurate groups, and (b) separating said catalyst from said cyclotrimerized isocyanate in order to stop said reaction after a desired amount of isocyanate moieties in said polyisocyanate have been converted to isocyanurate moieties.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: June 22, 1993
    Assignee: Olin Corporation
    Inventors: Stephen L. Goldstein, Curtis P. Smith
  • Patent number: 4147846
    Abstract: Described is a process for making rigid polyurethane foam from a reaction formulation including a novel surfactant composition comprising select trialkoxysilanols or alkoxysilane cluster compounds.
    Type: Grant
    Filed: August 17, 1978
    Date of Patent: April 3, 1979
    Assignee: Olin Corporation
    Inventors: Stephen L. Goldstein, David F. Gavin
  • Patent number: 4118586
    Abstract: A process for preparing dihydroxytoluene by heating toluene diisocyanate distillation residue in the presence of an aqueous solution of phosphoric acid.
    Type: Grant
    Filed: September 12, 1977
    Date of Patent: October 3, 1978
    Assignee: Olin Corporation
    Inventors: Stephen L. Goldstein, John S. Babiec, Jr.
  • Patent number: 4090988
    Abstract: Selected amino ethers are disclosed for use as catalysts in the preparation of polyurethane foam.
    Type: Grant
    Filed: July 8, 1977
    Date of Patent: May 23, 1978
    Assignee: Olin Corporation
    Inventors: John S. Babiec, Jr., Steven T. Nakos, Stephen L. Goldstein
  • Patent number: 4048107
    Abstract: Selected amines are used as catalysts in the preparation of polyurethane foam.
    Type: Grant
    Filed: January 12, 1976
    Date of Patent: September 13, 1977
    Assignee: Olin Corporation
    Inventors: John S. Babiec, Jr., Steven T. Nakos, Stephen L. Goldstein