Patents by Inventor Sheldon N. Lewis
Sheldon N. Lewis 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: 5223169Abstract: The inactivation in a laundry solution of a hydrolase enzyme by surfactant is prevented by the presence in the laundry solution of an amount of a non-charged enzyme activating means selected from oily hydrocarbons, hydrolyzable fatty acid ester substrates for the enzyme, e.g., triglycerides, essentially lipophilic organic compounds which are not substrates for the enzyme and which bear a polar substituent, and non-ionic surfactants which lower the oil to enzyme critical minimum molar ratio required to activate the enzyme.Type: GrantFiled: August 12, 1991Date of Patent: June 29, 1993Assignee: The Clorox CompanyInventors: Maha Y. El-Sayed, Susan A. Anderson, Sheldon N. Lewis, Richard J. Wiersema
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Patent number: 4960925Abstract: A number of novel peracid precursors each have the general structure: ##STR1## wherein: Z is a leaving group, the conjugate acid of the leaving group being in the range of from about 4 to 15; R is a substituted or unsubstituted alkyl or alkenyl group having from about 1 to 18 carbon atoms; and M is hydrogen or an alkali or alkaline earth metal. A method is also disclosed for synthesizing a product as represented above wherein succinic anhydride, including an R constituent as defined above is dissolved in a water-miscible, non-nucleophilic solvent and an acid including a Z constituent as defined above is neutralized and deprotonated to form a nucleophile, the substituted anhydride and the nucleophile being combined to form the product. The product is a component in a dry bleach product, optionally including other adjuncts.Type: GrantFiled: October 24, 1988Date of Patent: October 2, 1990Assignee: The Clorox CompanyInventors: Dale S. Steichen, Hao Ku, Sheldon N. Lewis
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Patent number: 4959187Abstract: The invention provides novel bleaching compositions comprising peracid precursors with the general structure ##STR1## with R, R', R" and L as defined in the specification. Novel peracids and precursors are also herein disclosed. These peracid precursors provide new, proficient and cost-effective compounds for fabric bleaching.Type: GrantFiled: October 14, 1988Date of Patent: September 25, 1990Assignee: The Clorox CompanyInventors: Ronald A. Fong, Sheldon N. Lewis, Richard J. Wiersema, Alfred G. Zielske
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Patent number: 4851139Abstract: A stable, isotropic fabric softening composition includes relatively high levels of a 2-n-alkyl-4-isothiazoline-3-one to provide immediate and residual mildewstatic activity on fabrics treated therewith. The composition also includes a quaternary ammonium or imidazolinium fabric softener having an iodine value of between about 20 and 70, an organic solvent matrix and optionally, a fatty acid soap, surfactant and pH adjusting agent, all to the promote the isotropic quality of the composition.Type: GrantFiled: August 26, 1987Date of Patent: July 25, 1989Assignee: The Clorox CompanyInventors: Sheldon N. Lewis, Clement K. Choy, Eugene A. Mizusawa, Tracey L. Casella
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Patent number: 4790952Abstract: A number of novel peracid precursors each have the general structure: ##STR1## wherein: Z is a leaving group, the conjugate acid of the leaving group being in the range of from about 4 to 15; R is a substituted or unsubstituted alkyl or alkenyl group having from about 1 to 18 carbon atoms; and M is hydrogen or an alkali or alkaline earth metal. A method is also disclosed for synthesizing a product as represented above wherein succinic anhydride, including an R constituent as defined above is dissolved in a water-miscible, non-nucleophilic solvent and an acid including a Z constituent as defined above is neutralized and deprotonated to form a nucleophile, the substituted anhydride and the nucleophile being combined to form the product. The product is a component in a dry bleach product, optionally including other adjuncts.Type: GrantFiled: August 14, 1986Date of Patent: December 13, 1988Assignee: The Clorox CompanyInventors: Dale S. Steichen, Hao Ku, Sheldon N. Lewis
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Patent number: 4778618Abstract: The invention provides novel bleaching compositions comprising peracid precursors with the general structure ##STR1## with R, R', R" and L as defined in the specification. Novel peracids and precursors are also herein disclosed. These peracid precursors provide new, proficient and cost-effective compounds for fabric bleaching.Type: GrantFiled: November 6, 1986Date of Patent: October 18, 1988Assignee: The Clorox CompanyInventors: Ronald A. Fong, Sheldon N. Lewis, Richard J. Wiersema, Alfred G. Zielske
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Patent number: 4395569Abstract: A sulfonic acid salt of an acyloxyalkylamine is prepared by reaction of an organic acid or amino-acid with a sulfonic acid salt of an alkanolamine. Isocyanates are prepared therefrom by reaction with phosgene.Type: GrantFiled: December 17, 1979Date of Patent: July 26, 1983Assignee: Rohm and Haas CompanyInventors: Sheldon N. Lewis, Jerome F. Levy
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Patent number: 4357435Abstract: Polymers of esters of methacrylic acid having an average chain length of about 6 to about 50 mers are prepared by an anionic polymerization reaction, carried out in the presence of a chain-regulating alcohol and a catalytic amount of an alkoxide anion, in which control of the molecular weight and molecular weight distribution of the polymer are achieved by regulating the ratio of the total quantity of alcohol employed to the total monomer charge. These polymers, their hydrolysis products, and their derivatives have a wide variety of applications, including use as components in films, coatings, fibers, impregnants, adhesives, printing inks, and binders, and use as modifiers, plasticizers, melt flow improvers, and leveling agents.Type: GrantFiled: September 29, 1977Date of Patent: November 2, 1982Assignee: Rohm and Haas CompanyInventors: Sheldon N. Lewis, Richard A. Haggard
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Patent number: 4356288Abstract: Polymers of esters of acrylic acid having an average chain length of about 6 to about 30 mers are prepared by an anionic polymerization reaction, carried out in the presence of a catalytic amount of an alkoxide anion. These polymers, their hydrolysis products, and their derivatives have a wide variety of applications, including among others use as components in films, coatings, fibers, impregnants, adhesives, and binders, and use as modifiers, plasticizers, melt flow improvers, and leveling agents.Type: GrantFiled: May 19, 1980Date of Patent: October 26, 1982Assignee: Rohm and Haas CompanyInventors: Sheldon N. Lewis, Richard A. Haggard
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Patent number: 4336345Abstract: Polymers of esters of methacrylic acid having an average chain length of about 6 to about 50 mers are prepared by an anionic polymerization reaction, carried out in the presence of a chain-regulating alcohol and a catalytic amount of an alkoxide anion, in which control of the molecular weight and molecular weight distribution of the polymer are achieved by regulating the ratio of the total quantity of alcohol employed to the total monomer charge. These polymers, their hydrolysis products, and their derivatives having condensation-crosslinkable functionality have a wide variety of applications, including use as components in films, coatings, fibers, impregnants, adhesives, printing inks, and binders, and use as modifiers, plasticizers, melt flow improvers, and leveling agents.Type: GrantFiled: May 12, 1980Date of Patent: June 22, 1982Assignee: Rohm and Haas CompanyInventors: Sheldon N. Lewis, Richard A. Haggard
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Patent number: 4325201Abstract: Disclosed herein are certain novel compounds which are most properly designated as 3-isothiazolones. These compounds and compositions containing them exhibit a broad spectrum of biocidal properties and are particularly effective for the control of microorganisms.Type: GrantFiled: December 10, 1979Date of Patent: April 20, 1982Assignee: Rohm and Haas CompanyInventors: Sheldon N. Lewis, George A. Miller, Andrew B. Law
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Patent number: 4322475Abstract: Disclosed herein are certain novel compounds which are mostly properly designated as 3-isothiazolones. These compounds and compositions containing them exhibit a broad spectrum of biocidal properties and are particularly effective for the control of microorganisms.Type: GrantFiled: July 31, 1980Date of Patent: March 30, 1982Assignee: Rohm and Haas CompanyInventors: Sheldon N. Lewis, George A. Miller, Andrew B. Law
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Patent number: 4279762Abstract: Disclosed herein are certain novel compounds which are most properly designated as 3-isothiazolones. These compounds and compositions containing them exhibit a broad spectrum of biocidal properties and are particularly effective for the control of microorganisms.Type: GrantFiled: December 10, 1979Date of Patent: July 21, 1981Assignee: Rohm and Haas CompanyInventors: Sheldon N. Lewis, George A. Miller, Andrew B. Law
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Patent number: 4265899Abstract: Disclosed herein are certain novel compounds, which are most properly designated as 3-isothiazolones. These compounds and compositions containing them exhibit a broad spectrum of biocidal properties and are particularly effective for the control of microorganisms.Type: GrantFiled: December 10, 1979Date of Patent: May 5, 1981Assignee: Rohm and Haas CompanyInventors: Sheldon N. Lewis, George A. Miller, Andrew B. Law
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Patent number: 4252694Abstract: Disclosed herein are certain novel compounds which are most properly designated as 3-isothiazolones. These compounds and compositions containing them exhibit a broad spectrum of biocidal properties and are particularly effective for the control of microorganisms.Type: GrantFiled: December 10, 1979Date of Patent: February 24, 1981Assignee: Rohm and Haas CompanyInventors: Sheldon N. Lewis, George A. Miller, Andrew B. Law
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Patent number: 4247671Abstract: Novel oxazoline-containing monomers represented by the formula ##STR1## wherein: n is an integer of from 1 through 20:R.sub.1 is selected from the group consisting of hydrogen and methyl; andR.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 are independently selected from the group consisting of hydrogen and alkyl of from 1 through 20 carbon atoms;polymers thereof, and methods for preparing the same are disclosed.The hydrocurable polymers of the invention, before hydrolysis, contain a plurality of units represented by the following formula: ##STR2## Polymers having such units may be obtained by addition polymerization of monomers of structure I, preferably with other ethylenically unsaturated monomers.Type: GrantFiled: April 11, 1979Date of Patent: January 27, 1981Assignee: Rohm and Haas CompanyInventors: R. Larry Reitz, Thomas W. Hutton, Sheldon N. Lewis
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Patent number: 4246370Abstract: Polymers of esters of acrylic acid having an average chain length of about 6 to about 30 mers are prepared by an anionic polymerization reaction, carried out in the presence of a catalytic amount of an alkoxide anion. These polymers, their hydrolysis products, and their derivatives have a wide variety of applications, including among others use as components in films, coatings, fibers, impregnants, adhesives, and binders, and use as modifiers, plasticizers, melt flow improvers, and leveling agents.Type: GrantFiled: March 5, 1979Date of Patent: January 20, 1981Assignee: Rohm and Haas CompanyInventors: Sheldon N. Lewis, Richard A. Haggard
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Patent number: 4243403Abstract: Disclosed herein are certain novel compounds which are most properly designated as 3-isothiazolones. These compounds and compositions containing them exhibit a broad spectrum of biocidal properties and are particularly effective for the control of microorganisms.Type: GrantFiled: May 30, 1978Date of Patent: January 6, 1981Assignee: Rohm and Haas CompanyInventors: Sheldon N. Lewis, George A. Miller, Andrew B. Law
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Patent number: 4226753Abstract: Polymers of esters of methacrylic acid having an average chain length of about 6 to about 50 mers are prepared by an anionic polymerization reaction, carried out in the presence of a chain-regulating alcohol and a catalytic amount of an alkoxide anion, in which control of the molecular weight and molecular weight distribution of the polymer are achieved by regulating the ratio of the total quantity of alcohol employed to the total monomer charge. These polymers, their hydrolysis products, and their derivatives having condensation-crosslinkable functionality have a wide variety of applications, including use as components in films, coatings, fibers, impregnants, adhesives, printing inks, and binders, and use as modifiers, plasticizers, melt flow improvers, and leveling agents.Type: GrantFiled: May 15, 1978Date of Patent: October 7, 1980Assignee: Rohm and Haas CompanyInventors: Sheldon N. Lewis, Richard A. Haggard
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Patent number: 4208313Abstract: Polymers of esters of methacrylic acid having an average chain length of about 6 to about 50 mers are prepared by an anionic polymerization reaction, carried out in the presence of a chain-regulating alcohol and a catalytic amount of an alkoxide anion, in which control of the molecular weight and molecular weight distribution of the polymer are achieved by regulating the ratio of the total quantity of alcohol employed to the total monomer charge. These polymers, their hydrolysis products, or their hydroxyl-containing derivatives are esterified or transesterified to give polymers having pendant acrylate or methacrylate functionality which are useful in formulating films, coatings, inks, and the like.Type: GrantFiled: October 20, 1977Date of Patent: June 17, 1980Assignee: Rohm and Haas CompanyInventors: Sheldon N. Lewis, Richard A. Haggard