Abstract: A composition for preventing or retarding the formation of gas hydrates during the transport of a fluid comprising water and a hydrocarbon through a conduit. The composition is a homopolymer of vinyl caprolactam, or copolymers thereof, having a low molecular weight in the range of 500 to 2500, which is made in a polymerization solvent, preferably a glycol ether, most preferably 2-butoxyethanol and also including a carrier solvent, preferably monoethylene glycol.
Type:
Grant
Filed:
July 13, 1999
Date of Patent:
September 17, 2002
Assignee:
ISP Investments Inc.
Inventors:
Kirill N. Bakeev, Kevin Harris, Carl B. Argo, Michael A. Drzewinski, David E. Graham
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 an N-alkyl(meth)acrylamide, N,N-dialkyl(meth)acrylamide or copolymers thereof with N-vinyl-N-methylacetamide, in a defined solvent, which homopolymers and copolymers are made and applied in the defined solvent, which, most preferably, is a low molecular weight glycol ether such as 2-butoxyethanol.
Type:
Grant
Filed:
November 14, 2000
Date of Patent:
September 17, 2002
Assignee:
ISP Investments Inc.
Inventors:
Vu Thieu, Kirill N. Bakeev, Jenn S. Shih
Abstract: A continuous, solvent-free process for obtaining solvent-free, fine white powders of high molecular weight alternating copolymers of maleic anhydride and a C1-C4 alkyl vinyl ether, without odor or taste, having the molecular structure (A—B)n, where A is maleic anhydride, B is an alkyl vinyl ether and n is an integer indicative of the molecular weight of the copolymer, which comprises feeding alkyl vinyl ether as reactant and solvent in excess over the desired 1:1 mole ratio of A:B in the copolymer, molten maleic anhydride and a free radical initiator, continuously at predetermined feeding rates into a reactor heated at a reaction temperature of about 50° to 100° C.
Type:
Grant
Filed:
May 18, 2001
Date of Patent:
September 17, 2002
Assignee:
ISP Investments Inc.
Inventors:
Russell Biss, Jeffrey Cohen, John Zamora, Krystyna Plochocka, Jeffrey A. Lynn
Abstract: A purified shilajit composition is provided herein from native shilajit. The composition has an abundance of bioactive components, particularly, at least 0.3%, preferably 0.4-1%, by weight, oxygenated dibenzo-&agr;-pyrones and at least 60%, preferably 65-70%, by weight of fulvic acids of low-to-medium molecular weight ({overscore (M)}n of 700-2000) with an E4/E6 ratio of 8-10 at 465-665 nm, and whose 2% aqueous solution has a pH of ≧7. Personal care, pharmaceutical and nutritional use formulations of the purified shilajit composition also are described.
Type:
Grant
Filed:
May 18, 2001
Date of Patent:
August 27, 2002
Assignees:
Natreon Inc., Indian Herbs Research & Supply Company Ltd.
Abstract: This invention relates to dye complexing polymers, and, more particularly, to water soluble poly(isopropenylpyridine) betaines containing a quaternary nitrogen and a carboxylate salt or carboxylic acid group. The polymers herein have effective dye complexing properties for use, for example, laundry detergent and fabric softener compositions.
Type:
Grant
Filed:
August 11, 2000
Date of Patent:
August 13, 2002
Assignee:
ISP Investments Inc.
Inventors:
Bala Srinivas, Jenn S. Shih, David E. Graham, Michael A. Drzewinski
Abstract: Described herein is a process of corrosion inhibition of a steel pipeline during transport of water and gas, or water and an oil, or mixtures thereof, therethrough, including introducing a copolymer of vinyl caprolactam and vinylpyridine into said pipeline.
Type:
Grant
Filed:
October 12, 1999
Date of Patent:
August 13, 2002
Assignee:
ISP Investments Inc.
Inventors:
Kirill N. Bakeev, Jui-Chang Chuang, Thomas Winkler, Michael A. Drzewinski, David E. Graham
Abstract: This invention concerns a stabilized packaging environment for a particulate vinyl lactam polymer, particularly polyvinylpyrrolidone particles, which comprises a sealed, oxygen-impervious receptacle containing the polymer particles and a separate air permeable package within the receptacle containing a water moistened oxygen scavenging agent, preferably iron powder, an iron (II) salt, ascorbic acid or a mixture of such agents.
Type:
Grant
Filed:
July 23, 2001
Date of Patent:
July 16, 2002
Assignee:
ISP Investments Inc.
Inventors:
Chi-San Wu, Laurence Senak, Donna Osborne, James F. Curry, Charles B. Schriver, Irwin B. Silverstein
Abstract: This invention relates to a composition containing (a) a component selected from the group of a mono- or poly- vinyl substituted mono- or poly-ether, a mono- or poly- vinyl substituted lactam, or a mixture thereof contained in an acidic medium and (b) an aliphatic, primary or secondary mono- or poly-amine at a concentration sufficient to adjust the pH of the composition above
Abstract: A product-structuring composition which forms a bilayer lamellar gel network in an oil-in-water system comprising (a) a cationic swellant which is a fatty acid adduct of amidopropyldimethyl-2-hydroxyethyl ammonium halide, and (b) a gellant blend of low HLB emulsifiers having a resultant HLB of about 1.5 to 4.5.
Type:
Grant
Filed:
September 14, 1999
Date of Patent:
April 9, 2002
Assignee:
ISP Investments Inc.
Inventors:
Mark Rerek, Chester Wang, Elliott Zucker, David Moore, Ilya Makarovskiy
Abstract: A process of making a homopolymer of vinyl caprolactam (VCL), and a copolymer with dimethylaminopropyl methacrylamide (DMAPMA), optionally including with one or more polymerizable monomers (X), in the composition range, by weight, VCL 99 to 30%, DMAPMA 1-70% and monomer X 0-30%, respectively, by suspension polymerization in an aqueous/alcoholic solvent medium, without requiring a protective colloid, which comprises charging vinyl caprolactam in an aqueous/alcoholic solvent mixture, wherein the weight ratio of alcohol to total monomers is ⅙ to 3, and if present, forming a solution of DMAPMA and optional monomers in water, feeding the solution into the VCL charge at a predetermined rate, periodically adding initiator to the reaction mixture, and polymerizing at about 40° to 130° C., and, if desired, neutralizing the product, to form a polymer product at about 5% to 40% solids, homogeneously dispersed in the solvent.
Type:
Grant
Filed:
August 18, 2000
Date of Patent:
April 9, 2002
Assignee:
ISP Investments Inc.
Inventors:
Jenn S. Shih, Donald I. Prettypaul, John Mc Kittrick, David E. Graham
Abstract: This invention relates to a low fiber, plyable facer suitable for use in the construction industry, particularly for insulation board manufacture, comprising a dry preformed fiber mat containing a binder for the fibers, preferably a preformed glass mat, coated with a prefoamed composition which contains a thixotropic polymer latex, a foam sustaining amount of a surfactant and a flame retarding and/or strengthening amount of a mineral filler and also to the use and process for the preparation of the above as well as to a siding underlayment or insulation board having a foamed, thermosetting resin core which is surfaced with said facer as a product for commercial use.
Type:
Grant
Filed:
August 18, 1999
Date of Patent:
April 9, 2002
Assignee:
Building Materials Investment Corporation
Inventors:
Charles J. Horner, Jr., Frank S. Franzyshen, Murray S. Sherman
Abstract: A continuous, solvent-free process for obtaining solvent-free, fine white powders of high molecular weight alternating terpolymers of maleic anhydride, a C1-C4 alkyl vinyl ether and isobutylene, without odor or taste.
Type:
Grant
Filed:
July 6, 2000
Date of Patent:
April 2, 2002
Assignee:
ISP Investments Inc.
Inventors:
Russell Biss, Jeffrey Cohen, John Zamora, Krystyna Plochocka, Jeffrey A. Lynn
Abstract: This invention relates to a low fiber, plyable facer suitable for use in the construction industry, particularly for insulation board manufacture, comprising a dry preformed fiber mat containing a binder for the fibers, preferably a preformed glass mat, coated with a prefoamed composition which contains a thixotropic polymer latex, a foam sustaining amount of a surfactant and a flame retarding and/or strengthening amount of a mineral filler and also to the use and process for the preparation of the above as well as to a siding underlayment or insulation board having a foamed, thermosetting resin core which is surfaced with said facer as a product for commercial use.
Type:
Grant
Filed:
August 18, 1999
Date of Patent:
April 2, 2002
Assignee:
Building Materials Investment Corportion
Inventors:
Charles J. Horner, Jr., Frank S. Franzyshen, Murray S. Sherman
Abstract: What is described herein is the reaction product of arginine and p-aminobenzoic acid (PABA), cosmetic and human and animal health compositions thereof, useful for treating wounds (small or large animals and humans), burns (small or large animals and humans), sunburn (in humans, dogs and sheep), non-specific vaginitis (large animals), dermatitis (small or large animals and humans), pyoderma (small and large animals), rhabditis dermatitis (dogs and cattle), eczema nasi (dogs), exudative epidermitis (swine), saddle sores (horses), proudflesh (horses), hutchburn (rabbits), dermal lesions (small or large animals and humans), udder edema (cattle, goats and sheep), abscesses (small or large animals and humans) and bovine mastitis.
Abstract: A method of blocking free radical processes in an animal which result in mediated pathology without deleterious pro-oxidant side reactions which comprises administering an extract of the fruit of the Emblica officinalis plant to effect such advantageous result, preferably in a use formulation at an active use level of 0.005 to 5% by weight of the formulation.
Type:
Grant
Filed:
September 21, 2000
Date of Patent:
March 26, 2002
Assignees:
Natreon Inc., Indian Herbs Research & Supply Company Ltd.
Abstract: A composite roofing shingle coated with weather resistant granules on its exposed surface which comprises (a) a top member having an upper undivided headlap section and a lower butt section comprising spaced tabs depending from said headlap and (b) a bottom backer member attached to the under surface and coterminal with the length of said headlap section, said backer member being exposable in the spaces between said tabs, said tabs carrying a horizontal band area of a given hue which contrasts with that of the remaining portion of the tab and which is painted or printed across the bottom margin of the tab to provide a band having a relatively smooth surface, said backer member having a surface texture distinguishable from the texture of the color band and having weather resistant granules embedded on its exposed surface; which granules are of a contrasting color with respect to the unpainted portions of the tabs.
Type:
Grant
Filed:
September 27, 1999
Date of Patent:
March 26, 2002
Assignee:
Building Materials Investment Corporation
Inventors:
Frederick W. Sieling, William R. Carroll
Abstract: A gas hydrate inhibitor includes, by weight, a copolymer including about 80 to about 95% of polyvinyl caprolactam (VCL) and about 5 to about 20% of N,N-dialkylaminoethyl(meth)acrylate or N-(3-dimethylaminopropyl) methacrylamide.
Type:
Grant
Filed:
March 20, 2001
Date of Patent:
March 19, 2002
Assignee:
ISP Investments Inc.
Inventors:
Vu Thieu, Kirill N. Bakeev, Jenn S. Shih
Abstract: A clear emulsifiable concentrate of a water-insoluble fungicide, without nonylphenol ethoxylate, that can be diluted in water to produce an aqueous ready-to-use formulation free from crystal formation or decomposition.
Type:
Grant
Filed:
May 15, 2001
Date of Patent:
March 12, 2002
Assignee:
ISP Investments Inc.
Inventors:
George B. Beestman, Kolazi S. Narayanan
Abstract: A high purity, water-white, clear, light stable, non-toxic, formaldehyde-free composition for inhibiting growth in a substance requiring microbial inhibition comprising about 40-60% by weight of an aqueous solution of hydroxymethylaminoacetate in the form of its alkali metal salt which is formed by the reaction of a salt of glycine, with formaldehyde, in an aqueous medium, at a pH of about 10.5-12.5, characterized by carrying out the reaction at a molar ratio of glycine to formaldehyde sufficient to maintain a molar excess of glycine in the medium and to leave a predetermined amount of residual glycine present in the composition at the conclusion of the reaction, and to preclude the presence of any detectable free formaldehyde as methylene diol in said composition.