Patents Represented by Attorney Ellen T. Dec

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  • Use of reactive hot melt adhesive for packaging applications
    Patent number: 5018337
    Abstract: Cases and cartons are formed and/or sealed using a specific class of low viscosity reactive urethane hot melt adhesive compositions which provide a fast setting, temperature resistant bond that is not attacked by aromatic oils solvents or petrochemical vapors.
    Type: Grant
    Filed: April 10, 1989
    Date of Patent: May 28, 1991
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: David G. Carter, Derek J. Green, Michael C. Collins
  • Copolymers as thickeners and modifiers for latex systems
    Patent number: 5013787
    Abstract: A thickened aqueous copolymer solution useful for thickening and improving the properties of latex systems comprising a copolymer having as monomeric units: about 79-99 percent of a (meth)acrylic acid salt of sodium, potassium, or ammonium; about 0-20 percent of (meth)acrylic acid; about 0-20 percent of a lower alkyl ester of (meth)acrylic acid; about 1-21 percent of surfactant units selected from the urea reaction product of a monoethylenically unsaturated monoisocyanate with a nonionic surfactant having amine functionality; and about 0-1 percent of a copolymerizable polyethylenically unsatured monomer, said percentages being by weight based on the total weight of monomeric units in said copolymer.
    Type: Grant
    Filed: December 29, 1989
    Date of Patent: May 7, 1991
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Milagros C. Barron, Ronald L. Swope, John M. Wilkerson, III
  • Copolymers as thickeners and modifiers for latex systems
    Patent number: 5011978
    Abstract: A thickened aqueous copolymer solution useful for thickening and improving the properties of latex systems comprising a copolymer having as monomeric units: about 79-99 percent of a (meth)acrylic acid salt of sodium, potassium, or ammonium; about 0-20 percent of (meth)acrylic acid; about 0-20 percent of a lower alkyl ester of (meth)acrylic acid; about 1-21 percent of surfactant units selected from the urea reaction product of a monoethylenically unsaturated monoisocyanate with a nonionic surfactant having amine functionality; and about 0-1 percent of a copolymerizable polyethylenically unsatured monomer, said percentages being by weight based on the total weight of monomeric units in said copolymer.
    Type: Grant
    Filed: December 29, 1989
    Date of Patent: April 30, 1991
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Milagros C. Barron, Ronald L. Swope, John M. Wilkerson, III, Charles G. Ruffner
  • Formaldehyde-free heat resistant binders for nonwovens
    Patent number: 5011712
    Abstract: Formaldehyde-free heat resistant binders for flexible nonwoven products may be prepared using an emulsion polymer comprising 100 parts by weight of C.sub.1 -C.sub.4 alkyl acrylate or methacrylate or styrene/acrylate ester monomers, 0.5 to 5 parts of a hydroxyalkyl acrylate or methacrylate, 3 to 6 parts of methyl acrylamido glycolate methyl ether and 0.1 to 5 parts of a multifunctional comonomer. The binders are useful in the formation of heat resistant flexible products for use in roofing, flooring and filtering materials.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: April 30, 1991
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Ronald Pangrazi, James L. Walker
  • Recyclable hot melt adhesive compositions
    Patent number: 5001179
    Abstract: Recyclable hot melt adhesive compositions suitable for plastic bonding may be prepared from styrene-ethylene-butylene-styrene tri-block and/or styrene-ethylene-butylene di-block copolymers which are tackified with at least one hydrogenated resin based on alpha-methyl styrene, vinyl toluene, styrene, coumarone-indene, dicyclopentadiene or mixtures thereof, optionally containing small amounts of white mineral oil or similar diluent. In addition, the adhesive may or may not include minor amounts of the above-described pure monomer resins (specifically composed of styrene, alpha methyl styrene or vinyl toluene or mixtures thereof) in their non-hydrogenated form to serve as end block reinforcing resins.
    Type: Grant
    Filed: January 13, 1989
    Date of Patent: March 19, 1991
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Thomas F. Kauffman, Paul P. Puletti
  • Hair fixative compositions containing alpha-aminomethylene phosphonate betaines
    Patent number: 4996045
    Abstract: Improved hair fixative compositions are prepared from copolymers containing specific alpha-aminoethylenephosphonate betaine monomers. The resulting fixative compositions exhibit an enhanced tolerance of non-halogenated hydrocarbons, yet also exhibit a high degree of shampoo removability, making them particularly useful in aerosol formulations using non-halogenated hydrocarbon propellants.
    Type: Grant
    Filed: November 16, 1988
    Date of Patent: February 26, 1991
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: John Leighton, Carmine Iovine
  • Ethylene vinyl acetate alkyl acrylate compositions for flocking adhesives
    Patent number: 4963422
    Abstract: Flocking adhesives are prepared from an aqueous emulsion prepared by the emulsion polymerization of a vinyl ester of an alkanoic acid interpolymerized with:(a) 10 to 30% by weight of ethylene;(b) 30 to 50% by weight of a C.sub.4 -C.sub.8 alkyl acrylate;(c) 1 to 5% by weight of an N-methylol containing copolymerizable monomer;(d) 0 to 4% by weight of an olefinically unsaturated carboxylic acid; and(e) 0 to 1% by weight of a polyethylenically unsaturated comonomer.
    Type: Grant
    Filed: October 11, 1989
    Date of Patent: October 16, 1990
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Howard Katz, David J. Lunsford
  • Heat resistant acrylic binders for nonwovens
    Patent number: 4957806
    Abstract: Heat resistant binders for flexible nonwoven products may be prepared using an emulsion polymer comprising 100 parts by weight of C.sub.1 -C.sub.4 alkyl acrylate or methacrylate ester monomers, 0.5 to 5 parts of a hydroxyalkyl acrylate or methacrylate, 3 to 6 parts of a water soluble N-methylol containing comonomer and 0.1 to 5 parts of a multifunctional comonomer. The binders are useful in the formation of heat resistant flexible products for use in roofing, flooring and filtering materials.
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: September 18, 1990
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Ronald Pangrazi, James L. Walker, Paul R. Mudge
  • Bonding method employing sprayable hot melt adhesives for case and carton sealing
    Patent number: 4956207
    Abstract: Rigid substrates for case and carton sealing and traymaking applications are bonded by spray application of a hot melt adhesive composition comprising 25 to 50 percent of an isotactic thermoplastic polybutene-1/ethylene copolymer containing from about 5.5 to about 10% by weight ethylene; 20 to 60 percent of a tackifier; 15 to 30 percent of an amorphous diluent having a softening point greater than 90.degree. C.; 0 to 2 percent antioxidant; and 0 to 10 percent wax or oil.
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: September 11, 1990
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Thomas F. Kauffman, Paul P. Puletti
  • Laminating adhesives
    Patent number: 4948822
    Abstract: Laminating adhesives are described for forming flexible laminates having high bond strength, and a high degree of both humidity and water resistance. The one-part laminating adhesive compositions incorporate acrylic polymer emulsions prepared by a "core-shell" multistage polymerization process.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: August 14, 1990
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Carmine P. Iovine, James L. Walker
  • Toughened rubber based hot melt adhesive compositions for disposable applications
    Patent number: 4944993
    Abstract: Hot melt adhesive compositions suitable for disposable constructions are prepared from tackifying resins, oil diluent and a substantially radial styrene-butadiene block copolymer, the copolymer having a styrene content greater than about 35% by weight, a molulus at 300% elongation of at least 4.5 MPa and a solution viscosity less than about 1000 cps.
    Type: Grant
    Filed: August 17, 1988
    Date of Patent: July 31, 1990
    Assignee: National Starch and Investment Holding Corporation
    Inventors: Gary Raykovitz, Robert Schmidt, Paul Puletti
  • Toughened hot melt adhesive composition for book casemaking
    Patent number: 4944994
    Abstract: A case or cover for a hard bound book is formed by bonding the formed by bonding the cover boards to the book cover stock using a hot melt pressure sensitive adhesive composition comprising:(a) 10 to 40% by weight of a substantially radial styrene-butadiene block copolymer, the copolymer having a styrene content greater than about 35% by weight, a modulus at 300% elongation of at least 4.5 MPa and a solution viscosity less than about 1000 cps;(b) 20 to 65% by weight of a compatible tackifying resin;(c) 0.1 to 4% by weight stabilizer; and(d) the remainder (to 100%) comprising a plasticizing oil.
    Type: Grant
    Filed: August 17, 1988
    Date of Patent: July 31, 1990
    Assignee: National Starch and Investment Holding Corporation
    Inventor: Thomas P. Flanagan
  • Two-stage heat resistant binders for nonwovens
    Patent number: 4942086
    Abstract: Heat resistance binders for flexible polyester webs may be prepared using an emulsion polymer,the polymer being prepared by a two-stage polymerization procedure wherein a first stage is prepared based on a relatively low Tg ethylene vinyl acetate polymer and a second stage higher Tg polymer thereby combining the advantageous flexibility and film forming properties of the ethylene vinyl acetate copolymer with the stiffness and heat resistance of the higher Tg copolymer.
    Type: Grant
    Filed: September 9, 1988
    Date of Patent: July 17, 1990
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Paul R. Mudge, James J. Walker, Ronald Pangrazi
  • Toughened rubber based hot melt adhesive compositions for bookbinding applications
    Patent number: 4942195
    Abstract: Thus, the present invention is directed to hot melt adhesive compositions suitable for bookbinding application comprising tackifying resins, at least one wax diluent and a substantially radial styrene-butadiene block copolymer, the copolymer having a styrene content greater than about 35% by weight, a modulus at 300% elongation of at least 4.5 MPa and a solution viscosity less than about 1000 cps.
    Type: Grant
    Filed: August 17, 1988
    Date of Patent: July 17, 1990
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Thomas P. Flanagan, Paul Puletti
  • Process for the production of hardboard
    Patent number: 4940741
    Abstract: A one-step process for simultaneously compressing and tempering fiberboard panel, which includes the step of applying to the panel prior to compression thereof an aqueous treating composition which comprises a polyvinyl acetate emulsion and optionally up to 40% of a hydrocarbon emulsion, up to 3% of a fluid, water-soluble organosilicone polymer, or up to 5% by weight of a starch crosslinking agent. The polyvinyl acetate emulsion is prepared in the presence of 6-10% by weight of a starch stabilizer selected from the group consisting of derivatized starches and/or converted starches and 0.5-1.5% of a surfactant. The preferred emulsions are polymerized in the presence of alkenyl succinate starches, most preferably octenyl succinate waxy maize starches.
    Type: Grant
    Filed: June 17, 1988
    Date of Patent: July 10, 1990
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Dennis R. De Wacker, Leon Rosenberg
  • Ethylene vinyl acetate-dioctyl maleate-2-ethylhexyl acrylate interpolymers
    Patent number: 4939220
    Abstract: Adhesive compositions having a Tg of -45.degree. to -25.degree. C. suitable for application to plasticized polyvinyl chloride comprising 25 to 40% by weight of an vinyl ester of a alkanoic acid; 10-30% by weight ethylene; 20 to 30% by weight of di-2-ethylhexyl maleate or fumarate; 20 to 30% by weight of 2-ethylhexyl acrylate; and 1 to 10% by weight of a mono-carboxylic acid.
    Type: Grant
    Filed: December 15, 1989
    Date of Patent: July 3, 1990
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventor: Paul R. Mudge
  • Interpolymers for barium sulphate inhibition
    Patent number: 4937002
    Abstract: The present invention provides a method for treating aqueous systems to reduce or prevent the deposition of barium sulphate and other insoluble sulphates therein, comprising the addition to the water of an effective amount of an interpolymer of an ethylenically polymerizable carboxylic acid, and at least one of an ethylenically polymerizable dicarboxylic acid or other copolymerizable comonomer. The polymers are particularly effective in preventing scale precipitate at high levels of barium (e.g. 700 ppm) and under low pH conditions.
    Type: Grant
    Filed: June 12, 1989
    Date of Patent: June 26, 1990
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Peter Bainbridge, Vincent Rowan
  • Inhibition method
    Patent number: 4915845
    Abstract: Water soluble polymers comprising at least one mole percent of a recurring monomer unit represented by the chemical structure ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are independently hydrogen or C.sub.1 -C.sub.6 alkyl; and X is hydrogen, an alkali or alkaline earth metal or ammonium are disclosed.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: April 10, 1990
    Assignee: National Starch and Chemical Corporation
    Inventors: John C. Leighton, Michael J. Sanders
  • Laminating adhesive for film/paper microwavable products
    Patent number: 4911960
    Abstract: Wet laminating adhesives capable of withstanding the stresses encountered during heat sealing operations are prepared from emulsion copolymers consisting essentially of 45 to 80% by weight of a vinyl ester of an alkanoic acid, 10 to 30% ethylene, 5 to 30% of dialkyl maleate, 0.5 to 2% of an N-methylol containing comonomer and 0.5 to 4% of an ethylenically unsaturated mono- or di-carboxylic acid. These specific emulsion copolymers are prepared utilizing standard emulsion polymerization procedures with hydroxyethylcellulose or polyvinyl alcohol as a protective colloid. The emulsion polymers thus produced provide superior wet laminating adhesive properties for use in substrates which are to be formed into microwavable packages or bags.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: March 27, 1990
    Assignee: National Starch and Chemical Corporation
    Inventors: Paul R. Mudge, James L. Walker, Terence M. Barnhart
  • Rounding of hard cover books
    Patent number: 4907822
    Abstract: Rounded, hard covered books are bound using a specific class of low viscosity reactive urethane hot melt adhesive compositions which provide a coating which will remain sufficiently flexible and thermoplastic so as to be capable of accepting and maintaining the rounded configuration even after extended periods of storage.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: March 13, 1990
    Assignee: National Starch and Chemical Corp.
    Inventors: David G. Carter, Derek J. Green, Anthony J. Clark