Patents by Inventor Reuben Grinstein
Reuben Grinstein 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).
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Patent number: 6476170Abstract: Described is a process for making acrylic resins suitable as polymeric surfactants used in emulsion polymerization, as pigment grinding resins and for preparing dispersions used as overprint varnishes. The feedstock is styrene, &agr;-methyl styrene, acrylic acid and a polymerization initiator and is preferably free of solvent. This mix is passed through a continuous tube reactor run at a controlled range of pressure and relatively low residence time and temperature. Optimally, when the polymer/unreacted monomers blend exits the reactor and is devolatilized, the recovered monomers are used to make up part of the feedstock.Type: GrantFiled: November 28, 2000Date of Patent: November 5, 2002Assignee: Cook Composites & Polymers Co.Inventors: George Roth, George A. Smith, Reuben Grinstein, Paul D. Whyzmuzis, Shruti Singhal, Steve Boucher, Brenda Taipale, Roger Lovald, David Devore, James P. Yosh, Jr., Stephen A. Fischer, Michael S. Wiggins
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Publication number: 20020147366Abstract: Process for the preparation of alkoxylated tertiary and quaternary amine surfactants by reductive amination of alkoxylated alcohols with anhydrous ammonia or primary or secondary amines or polyamines, optionally followed by quaternization of the alkoxylated tertiary amines with a quaternizing agent such as an aliphatic halide.Type: ApplicationFiled: June 29, 2001Publication date: October 10, 2002Inventors: Michael S. Wiggins, Reuben Grinstein, Dharmesh Chovatia
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Patent number: 6177055Abstract: A process for extracting and recovering copper from an aqueous solution containing copper values comprising: (a) contacting the aqueous copper bearing solution with an organic phase comprising a water insoluble and water immiscible solvent solution of an extraction reagent formulation to extract at least a portion of the copper values into the organic phase; (b) separating the resultant copper pregnant organic phase from the copper baren aqueous phase; and (c) recovering the copper values from the copper pregnant organic phase; wherein the extraction reagent formulation comprise an (i) oxime extractant and (ii) an equilibrium modifier in which the modifier is a linear diester or polyester of an unbranched dicarboxylic acid and an unbranched alcohol.Type: GrantFiled: September 2, 1999Date of Patent: January 23, 2001Assignee: Henkel CorporationInventors: Michael J. Virnig, Reuben Grinstein, R. Brantley Sudderth, George Wolfe, Stephen M. Olafson
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Patent number: 6160059Abstract: Described is a process for making acrylic resins suitable as polymeric surfactants used in emulsion polymerization, as pigment grinding resins and for preparing dispersions used as overprint varnishes. The feedstock is styrene, .alpha.-methyl styrene, acrylic acid and a polymerization initiator and is preferably free of solvent. This mix is passed through a continuous tube reactor run at a controlled range of pressure and relatively low residence time and temperature. Optimally, when the polymer/unreacted monomers blend exits the reactor and is devolatilized, the recovered monomers are used to make up part of the feedstock.Type: GrantFiled: October 10, 1997Date of Patent: December 12, 2000Assignee: Cook Composites and Polymers Co.Inventors: George Roth, George A. Smith, Reuben Grinstein, Paul D. Whyzmuzis, deceased, Shruti Singhal, Steve Boucher, Roger Lovald, David Devore, Stephen A Fischer, Michael S. Wiggins
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Patent number: 5889092Abstract: The rheological properties of latexes and latex paint formulations thickened with non-urethane thickeners according to the invention are modified by adding to the latex or latex paint formulation an amount of a nonionic surfactant having an HLB value of from 4 to about 20 sufficient to decrease the low shear viscosity of the thickened latex without a corresponding reduction in the high shear viscosity.Type: GrantFiled: July 10, 1995Date of Patent: March 30, 1999Assignee: Henkel CorporationInventors: Reuben Grinstein, Michael S. Wiggins
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Patent number: 5868826Abstract: A composition for thickening aqueous based personal care products is comprised of a cosolvent selected from the group consisting of a diol, the mono alkyl ether of a diol, a salt of a sulfated ethoxylated alcohol, a salt of a sulfated ethoxylated alkyl phenol, and a complex organic phosphate ester; water; a nonionic surfactant and, a complex ester.Type: GrantFiled: June 18, 1996Date of Patent: February 9, 1999Assignee: Henkel CorporationInventors: Stephen A. Fischer, Kartar S. Arora, Reuben Grinstein, Patrick M. McCurry, Jr., Judith C. Giordan
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Patent number: 5728895Abstract: Latexes are thickened by compounds of the formula ##STR1## wherein R.sup.1 is an aliphatic, substituted aliphatic, aromatic, or substituted aromatic radical having a valence of from 2 to 8; each of B.sub.1 -B.sub.8 is independently an ester, amide, amine, ether, sulfide, disulfide, thiocarbamate, urea, thiourea, urethane, sulfate, phosphate, carbonyl, methylene, thioamide, carbonate, or imide linkage; each of X.sup.1 -X.sup.8 is independently -A.sub.1 -R.sup.2 -A.sub.2 - or -A.sub.1 - wherein each of A.sub.1 and A.sub.2 is independently an ester, amide, amine, ether, sulfide, disulfide, urethane, thiocarbamate, urea, thiourea, sulfate, phosphate, carbonyl, methylene, thioamide, carbonate, or imide linkage and R.sup.2 is a divalent aliphatic, substituted aliphatic, aromatic, or substituted aromatic radical with the proviso that only one of B.sub.1 -B.sub.8 is urethane and that when one of B.sub.1 -B.sub.8 is urethane, one of A.sub.1 and A.sub.Type: GrantFiled: October 9, 1996Date of Patent: March 17, 1998Assignee: Henkel CorporationInventors: Michael S. Wiggins, Reuben Grinstein, Stephen A. Fischer
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Patent number: 5597406Abstract: A composition for thickening aqueous based personal care products is comprised of a cosolvent selected from the group consisting of a diol, the mono alkyl ether of a diol, a salt of a sulfated ethoxylated alcohol, a salt of a sulfated ethoxylated alkyl phenol, and a complex organic phosphate ester; water; a nonionic surfactant and, a complex ester.Type: GrantFiled: November 1, 1994Date of Patent: January 28, 1997Assignee: Henkel CorporationInventors: Stephen A. Fischer, Kartar S. Arora, Reuben Grinstein, Patrick M. McCurry, Jr., Judith C. Giordan
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Patent number: 5597407Abstract: A composition for thickening aqueous based personal care products is comprised of a cosolvent selected from the group consisting of a diol, the mono alkyl ether of a diol, a salt of a sulfated ethoxylated alcohol, a salt of a sulfated ethoxylated alkyl phenol, and a complex organic phosphate ester; water; a nonionic surfactant and, an ester of an ethoxylated polyol.Type: GrantFiled: June 2, 1995Date of Patent: January 28, 1997Assignee: Henkel CorporationInventors: Stephen A. Fischer, Kartar S. Arora, Reuben Grinstein, Patrick M. McCurry, Jr., Judith C. Giordan
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Patent number: 5501813Abstract: A composition for thickening aqueous based personal care products is comprised of a cosolvent selected from the group consisting of a diol, the mono alkyl ether of a diol, a salt of a sulfated ethoxylated alcohol, a salt of a sulfated ethoxylated alkyl phenol, and a complex organic phosphate ester; water; a nonionic surfactant and, an ester of an ethoxylated polyol.Type: GrantFiled: November 2, 1993Date of Patent: March 26, 1996Assignee: Henkel CorporationInventors: Stephen A. Fischer, Kartar S. Arora, Reuben Grinstein, Patrick M. McCurry, Jr., Judith C. Giordan