Patents Represented by Attorney, Agent or Law Firm Walter Katz
  • Controlled-release, drug-delivery tableted composition including a complex between poly(maleic diacid-alkyl vinyl ether) and polyvinylpyrrolidone
    Patent number: 6129931
    Abstract: A pH-dependent, controlled-release, drug delivery composition is described herein which includes:(a) a complex between poly(maleic diacid-alkyl vinyl ether) and polyvinylpyrrolidone, or their equivalents, and(b) an effective amount of a pharmaceutical medicament.
    Type: Grant
    Filed: September 3, 1998
    Date of Patent: October 10, 2000
    Assignee: ISP Investments Inc.
    Inventors: Nadhamuni G. Nerella, Herbert W. Ulmer, Sibu Chakrabarti, Gregory Du Browny
  • Natural antioxidant compositions, method for obtaining same and cosmetic, pharmaceutical and nutritional formulations thereof
    Patent number: 6124268
    Abstract: A natural antioxidant blend in the form of an amphorous powder was obtained by extraction from Emblica officinalis fruit. In this process, the finely pulped fruit was treated with a dilute aqueous salt solution at hot water temperature to provide an extract-containing solution, which was filtered and dried to provide the desired antioxidant blend powder. Cosmetic, pharmaceutical and nutritional use formulations thereof also are described.
    Type: Grant
    Filed: February 17, 1999
    Date of Patent: September 26, 2000
    Assignee: Natreon Inc.
    Inventor: Shibnath Ghosal
  • Crosslinked polyvinylpyrrolidone (PVPP) copolymer of vinyl pyrrolidone (VP) and monomer derived from 1-vinyl-3-(E)-ethylidene pyrrolidone (EVP)
    Patent number: 6124415
    Abstract: What is described herein is a crosslinked polyvinylpyrrolidone (PVPP) copolymer of vinyl pyrrolidone (VP) and monomer derived from 1-vinyl-3-(E)-ethylidene pyrrolidone (EVP).
    Type: Grant
    Filed: August 4, 1999
    Date of Patent: September 26, 2000
    Assignee: ISP Investment Inc.
    Inventors: Edward G. Malawer, Victor Kabanov, Kolazi S. Narayanan, Michael A. Tallon, Susan Y. Tseng, Philip F. Wolf
  • Mouthwash composition including a solvent-free high molecular weight uncrosslinked terpolymer of maleic anhydride C.sub.1 -C.sub.4 alkyl vinyl ether and isobutylene
    Patent number: 6117416
    Abstract: This invention relates to a mouthwash composition including a solvent-free, high molecular weight (>1,500,000) uncrosslinked terpolymer of maleic anhydride, a C.sub.1 -C.sub.4 alkyl vinyl ether and isobutylene.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: September 12, 2000
    Assignee: ISP Investments Inc.
    Inventors: William E. Prosise, James F. Curry, Krystyna Plochocka
  • Method for preventing or retarding the formation of gas hydrates
    Patent number: 6117929
    Abstract: A composition is provided herein for preventing or retarding the formation of gas hydrates or for reducing the tendency of gas hydrates to agglomerate, during the transport of a fluid comprising water and a hydrocarbon, through a conduit. The composition is a homopolymer of vinyl caprolactam having the low molecular weight in the range of 500 to 2500, or copolymers thereof, in a defined solvent. Such homopolymers and copolymers preferably are made and applied in the defined solvent, which, most preferably, is a glycol ether such as 2-butoxyethanol.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: September 12, 2000
    Assignee: ISP Investments Inc.
    Inventors: Kirill N. Bakeev, Jui-Chang Chuang, Michael A. Drzewinski, David E. Graham
  • Process for making substantially homogeneous copolymers of vinyl pyrrolidone and N-3,3-dimethylaminopropyl methacrylamide for personal care applications
    Patent number: 6110454
    Abstract: A process is described for making substantially homogeneous copolymers comprising 20-99% of vinyl pyrrolidone (VP) and 1-80% of N-3,3-dimethylaminopropyl methacrylamide, (DMAPMA), preferably 50-95% VP and 5-50% DMAPMA, and, most preferably, about 80:20, by weight, having a weight average molecular weight of about 200,000 to 1,500,000, as a clear, low viscosity aqueous solution of the homogeneous copolymer, at a 5-20% solids level, preferably about 10-15%, by weight of the solution, having a viscosity of about 5,000 to 80,000 cps, preferably about 10,000 to 70,000 cps. The solution obtained herein has lower viscosity and better clarity, and provides hair care products with enhanced curl retention (hold), when compared to non-homogeneous copolymers of the same composition, or related existing commercial products.
    Type: Grant
    Filed: May 30, 1996
    Date of Patent: August 29, 2000
    Assignee: ISP Investments Inc.
    Inventors: Kou-Chang Liu, Lowell R. Anderson, Eugene E. Hardy, Yakir Reuven
  • Trilaminate roofing shingle
    Patent number: 6105329
    Abstract: A trilaminated roofing shingle comprising:(a) an anterior layer consisting essentially of a rectangular, granular surfaced shingle sheet having an undivided headlap portion and a butt portion comprising a plurality of tabs of an average given breadth separated by spaces approximately 0.50 to 1.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: August 22, 2000
    Assignee: Building Materials Corporation of America
    Inventors: Alfredo A. Bondoc, William R. Carroll, Frederick W. Sieling
  • Water soluble dye complexing polymers
    Patent number: 6103831
    Abstract: This invention relates to dye complexing polymers, and, more particularly, to water soluble poly(vinylpyridine betaines) containing a quaternary nitrogen and a carboxylate salt. The polymers herein have effective dye transfer inhibitor (DTI) properties for use, for example, laundry detergent and fabric softener compositions.
    Type: Grant
    Filed: April 7, 1999
    Date of Patent: August 15, 2000
    Assignee: ISP Investments Inc.
    Inventors: Jenn S. Shih, Bala Srinivas, John C. Hornby
  • Method for inhibiting the formation of gas hydrates
    Patent number: 6096815
    Abstract: A composition for preventing or retarding the formation of gas hydrates or for reducing the tendency of gas hydrates to agglomerate, during the transport of a fluid comprising water and a hydrocarbon, through a conduit, comprising, (a) a polymer or copolymer selected from a terpolymer of vinyl pyrrolidone, vinyl caprolactam and an ammonium derivative monomer having from 6 to 12 carbon atoms, selected from the group consisting of dialkyl aminoalkyl methacrylamide, dialkyl dialkenyl ammonium halide and a dialkylamino alkyl acrylate or methacrylate, a copolymer of vinyl pyrrolidone and vinyl caprolactam, and a homopolymer of vinyl caprolactam, and (b) an alcohol containing three to five carbon atoms and one hydroxy group.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: August 1, 2000
    Assignee: ISP Investments Inc.
    Inventors: Jeffrey M. Cohen, William D. Young
  • Composition of an active component and free flowing particles of a polysaccharide matrix having significantly improved water dispersibility and stability in aqueous solutions
    Patent number: 6096345
    Abstract: This invention relates to a composition containing an active chemical and a particulate polysaccharide matrix having improved water dispersibility and dispersion stability in aqueous solutions by the incorporation of a copolymer of a N-vinyl lactam monomer and a hydrophobic comonomer. The improved properties of the matrix promotes its use as a dispersing agent in a wide variety of formulations where soil and skin substantivity or sustained release of the active chemical is required, as in pharmaceutical, pre- and post-emergent agrochemical and cosmetic formulations. The invention also pertains to the preparation and use of formulations based on the use of polysaccharide/copolymer matrix of this invention.
    Type: Grant
    Filed: January 22, 1998
    Date of Patent: August 1, 2000
    Assignee: ISP Investments Inc.
    Inventors: Kolazi S. Narayanan, Ronald H. Goehner, Jr., James F. Curry
  • Water soluble dye complexing polymers
    Patent number: 6093776
    Abstract: This invention relates to dye complexing polymers, and, more particularly, to water soluble poly(vinylpyridine betaines) containing a quaternary nitrogen and a carboxylate salt. The-polymers herein have effective dye transfer inhibitor (DTI) properties for use, for example, laundry detergent and fabric softener compositions.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: July 25, 2000
    Assignee: ISP Investments Inc.
    Inventors: Jenn S. Shih, Bala Srinivas, John C. Hornby
  • Sock mates
    Patent number: 6092241
    Abstract: This invention relates to socks, and, more particularly, to socks having a complementary mate, which enable a pair of socks to be fastened together when not being worn or during laundering and drying.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: July 25, 2000
    Inventor: Jerome Bellet
  • Method for inhibiting the formation of gas hydrates
    Patent number: 6093863
    Abstract: A composition for preventing or retarding the formation of gas hydrates or for reducing the tendency of gas hydrates to agglomerate, during the transport of a fluid comprising water and a hydrocarbon, through a conduit, comprising, (a) a polymer or copolymer selected from a terpolymer of vinyl pyrrolidone, vinyl caprolactam and an ammonium derivative monomer having from 6 to 12 carbon atoms, selected from the group consisting of dialkyl aminoalkyl methacrylamide, dialkyl dialkenyl ammonium halide and a dialkylamino alkyl acrylate or methacrylate, a copolymer of vinyl pyrrolidone and vinyl caprolactam, and a homopolymer of vinyl caprolactam, and (b) an alcohol containing three to five carbon atoms and one hydroxy group.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: July 25, 2000
    Assignee: ISP Investments Inc.
    Inventors: Jeffrey M. Cohen, William D. Young
  • Self-sealing shingle adhesive load relief
    Patent number: 6083592
    Abstract: This invention relates to a self-sealing roofing member which is a shingle or siding carrying adhesive in a horizontal area extending from the leading side edge to the rear side edge of one surface of the member, the opposite surface of said member having a complementary convex channel extending from the leading side edge to the rear side edge corresponding to the adhesive area; said channel being in contact with an adhesive release material in the area corresponding to the adhesive.
    Type: Grant
    Filed: September 3, 1998
    Date of Patent: July 4, 2000
    Assignee: Building Materials Corporation of America
    Inventor: Adem Chich
  • Curable, unsaturated polyester compositions
    Patent number: 6063864
    Abstract: A curable, unsaturated polyester composition comprising, by weight, an unsaturated polyester and 1-60% styrene and 1-50% vinylether monomers.
    Type: Grant
    Filed: April 22, 1998
    Date of Patent: May 16, 2000
    Assignee: ISP Investments Inc.
    Inventors: Arvind M. Mathur, James A. Dougherty
  • Controlled-release, drug-delivery composition
    Patent number: 6048522
    Abstract: A controlled-release, drug-delivery, emulsion composition for topical application comprising (a) the reaction product of the non-aqueous, heterogeneous polymerization of a reaction mixture of about 5-70%, preferably 10-30%, by weight, of a vinyl monomer in an oil as solvent, and a free radical initiator, optionally in the presence of a crosslinking agent and/or a surfactant, wherein the oil solvent is present in an amount sufficient to keep the resultant polymer in a stirrable state throughout the polymerization, (b) water, (c) a surfactant and (d) a pharmaceutical medicament.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: April 11, 2000
    Assignee: ISP Investments Inc.
    Inventors: Krystyna Plochocka, Jui-Chang Chuang, Jenn S. Shih, Anil Menon, Nadhamuni G. Nerella
  • Water-based microemulsion of a pyrethroid
    Patent number: 6045816
    Abstract: A clear, one-phase, efficacious aqueous microemulsion of an agriculturally active pyrethroid insecticide for delivery at a high loading of active is provided herein which is free of nonylphenol ethoxylate.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: April 4, 2000
    Assignee: ISP Investments Inc.
    Inventors: Kolazi S. Narayanan, Domingo Jon, Robert M. Ianniello, Donald Prettypaul
  • Dentifrice composition including a solvent-free, high molecular weight uncrosslinked terpolymer of maleic anhydride, C.sub.1 -C.sub.4 alkyl ether and isobutylene
    Patent number: 6046291
    Abstract: This invention relates to a dentifrice composition including a solvent-free, high molecular weight (>1,500,000) uncrosslinked terpolymer of maleic anhydride, a C.sub.1 -C.sub.4 alkyl vinyl ether and isobutylene.
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: April 4, 2000
    Assignee: ISP Investments Inc.
    Inventors: Huixiang Zhang, Krystyna Plochocka, William E. Prosise
  • Emulsion concentrates of fungicides, and aqueous use formulations thereof for wood preservation
    Patent number: 6033681
    Abstract: What is described herein are matrices, emulsion concentrates and aqueous use formulations of fungicides, effective for wood preservation applications, having increased penetration and rainfastness properties.
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: March 7, 2000
    Assignee: ISP Investments Inc.
    Inventors: Kolazi S. Narayanan, Domingo Jon, Donald Prettypaul
  • Water-free concentrate of amitraz insecticide and clear pour-on formulations thereof
    Patent number: 6024972
    Abstract: A water-free concentrate comprising, by weight,(a) 3-20% of amitraz insecticide, optionally with other agriculturally active chemicals, for example, a pyrethroid;(b) 30-80% of a nonionic surfactant having an HLB <7, and(c) 5-30% of a C.sub.1 -C.sub.8 alkyl pyrrolidone solvent.Clear, pour-on formulations of about 5-60% by weight of the concentrate and 40-95% of an oil are described.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: February 15, 2000
    Assignee: ISP Investments Inc.
    Inventors: Kolazi S. Narayanan, Domingo Jon, Donald Prettypaul