Patents Represented by Attorney William J. Davis

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  • Solvent-free, fine white powders of high molecular weight copolymers of maleic anhydride and a C1-C4 alky vinyl ether without odor or taste
    Patent number: 6184325
    Abstract: Solvent-free, fine white powders of high molecular weight copolymers of maleic anhydride and C1-C4 alkyl vinyl ethers, which are particularly useful as starting materials for denture adhesives. A solvent-free process for making such copolymers also is described.
    Type: Grant
    Filed: March 16, 1999
    Date of Patent: February 6, 2001
    Assignee: ISP Investments Inc.
    Inventor: Krystyna Plochocka
  • Rotatable coating hopper
    Patent number: 6183559
    Abstract: Apparatus and process for coating a continuously advancing web with a dry or wet coating material on a conveyor belt. The apparatus having a hopper which contains an agitator, a brush and a knurled roll to accurately dispense the coating material to an applicator which is positioned on a carousel. By rotating the carousel, the coating in the form of stripes, bars or a uniform layer can be varied at angles 0° to 90° on the continuously advancing web.
    Type: Grant
    Filed: January 26, 1999
    Date of Patent: February 6, 2001
    Assignee: Building Materials Corporation of America
    Inventors: James P. Mentone, William R. Millard, David C. De Palma
  • Blend for preventing or retarding the formation of gas hydrates
    Patent number: 6180699
    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 or terpolymers thereof, and a polyoxyalkylenediamine or a polyoxyarylenediamine. Such homopolymers, copolymers and terpolymers, preferably are made and applied in the defined solvent, which, most preferably, is a glycol ether such as 2-butoxyethanol.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: January 30, 2001
    Assignee: ISP Investments Inc.
    Inventors: Kirill N. Bakeev, Randall T. Myers, David E. Graham
  • Vinyl amide polymer delivery system for hair and skin treating compositions
    Patent number: 6177068
    Abstract: A cosmetically active oil-in-water (o/w) or water-in-oil (w/o) emulsion, for topical applications comprising (a) the reaction product of a non-aqueous, heterogeneous polymerization of a liquid reaction mixture containing between about 5 and about 70%, preferably 10-40%, by weight, of N-vinylamide monomer in an oil solvent, a free radical initiator, between about 0.1 and about 2.5% by weight of a crosslinking agent and optionally a surfactant, (b) water sufficient to form said emulsion, (c) a cosmetically active hair and/or skin treating chemical or chemical composition and optionally (d) a surfactant.
    Type: Grant
    Filed: December 2, 1998
    Date of Patent: January 23, 2001
    Assignee: ISP Investments Inc.
    Inventors: Jenn S. Shih, Jui-Chang Chuang, Krystyna Plochocka
  • Radiation polymerizable vinylether-based compositions
    Patent number: 6174933
    Abstract: Radiation polymerizable vinylether-based compositions, and cured vinylether-based formulations having a predetermined balance of tack, peel and shear particularly suitable for use in pressure sensitive adhesives are described.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: January 16, 2001
    Assignee: ISP Investments Inc.
    Inventors: James A. Dougherty, John McKittrick, Arvind M. Mathur
  • Roofing ply product
    Patent number: 6159876
    Abstract: A process for making a roofing ply roll or sheet product which comprises pretreating a fiber glass mat with water to provide greater than 2 and less than 10 wt. % water therein, and impregnating said moisturized mat with molten asphalt, the amount of asphalt retained in said mat being directly related to the amount of water present in the pretreated mat. An ASTM D 2178 Type VI roofing ply sheet comprising a fiber glass mat impregnated with asphalt and having a tensile strength of at least 60 lbf/in CMD and a flexibility of about 0.2 or less in inch/lb stiffness modulus MD.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: December 12, 2000
    Assignee: Building Materials Corporation of America
    Inventor: Mira Kubiak
  • Aqueous, flowable suspension concentrate of an agriculturally active chemical, and sprayable use formulation thereof
    Patent number: 6156803
    Abstract: What is described is an aqueous, flowable suspension concentrate of an agriculturally active chemical having excellent dilution and storage stability, and sprayable aqueous use formulation thereof, containing partially neutralized alkyl vinyl ether-maleic acid half-ester copolymers as dispersing agents therein.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: December 5, 2000
    Assignee: ISP Investments Inc
    Inventors: James F. Curry, Ronald H. Goehner, Jr., Kolazi S. Narayanan, Domingo Jon
  • Product and process for making quaternized, water soluble vinylpyridine carboxylate polymers
    Patent number: 6156829
    Abstract: This invention relates to stable, quaternized vinylpyridine carboxylate co-polymers, useful as dye transfer inhibitors and polymers complexable with active agrochemicals or pharmaceuticals for controlled release thereof, and to a commercial process for the synthesis thereof in high yield and purity.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: December 5, 2000
    Assignee: ISP Investments Inc.
    Inventors: Jenn S. Shih, Eduardo T. Yap, John C. Hornby, Bala Srinivas
  • Soffit vent
    Patent number: 6145255
    Abstract: Soffit ventilation system in a building having a horizontal soffit with a plurality of vents and a strip of mat of randomly oriented synthetic fibers covering the attic-facing side of the soffit. An alternative embodiment has a panel of air-impermeable material having upper and lower sections. The strip of mat of randomly oriented synthetic fibers is sandwiched between the lower section and the vertical side of the walls allowing the passage of air into the attic through an opening between the lower section and the upper section of the air-impermeable panel.
    Type: Grant
    Filed: August 25, 1999
    Date of Patent: November 14, 2000
    Assignee: Building Materials Corporation of America
    Inventor: George G. Allaster
  • Process for making substantially homogeneous polymers
    Patent number: 6136934
    Abstract: A process is described for making substantially homogeneous polymers of at least two monomers having substantially differing reactivity rates.
    Type: Grant
    Filed: December 28, 1994
    Date of Patent: October 24, 2000
    Assignee: ISP Investments Inc.
    Inventors: Yakir Reuven, Kou-Chang Liu
  • Roll roofing membrane
    Patent number: 6134856
    Abstract: An improved roll roof membrane for use in commercial applications, i.e., flat and low pitch roof structures, and a method for the preparation thereof. The roof membrane comprises a support sheet, and top and bottom layers comprising APP modified bitumen, the top APP modified bitumen layer having a selvage edge disposed along one side of the membrane and the bottom APP modified bitumen layer having a second selvage edge disposed along the opposite side of the membrane. Each of the selvage edges have a series of embossed ridges and valleys adapted to accept adhesives, the valleys extending substantially through the APP modified bitumen layer to the support sheet. The membrane exhibits excellent peel strength with an adhesive, thereby eliminating the need to use a torch during installation in commercial roofing applications.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: October 24, 2000
    Assignee: Building Materials Corporation of America
    Inventors: Amir G. Khan, Joseph R. Bruns, Richard Darrell Rains, Michael Di Stefano
  • 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
  • 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