Patents by Inventor Paul P. Puletti
Paul P. Puletti 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).
-
Patent number: 5866656Abstract: A solvent-free one-part hot melt polyurethane adhesive or sealant composition which is solid at room temperature comprising 10 to 70% by weight of a urethane prepolymer having an isocyanate content of 0.25 to 15% and an isocyanate index greater than 1 and 30 to 90% by weight of an ethylenically unsaturated polymer having a number average molecular weight of 4,000 to 15,000 as determined by Gel Permeation Chromatography using a PL Gel,Mixed 10 micron column, a Shimadzu Model RID 6A Detector with a tetrahydrofuran carrier solvent at a flow rate of 1 milliliter per minute, the polymer containing sufficient hydroxyl functionality to provide an OH number of 5 to 15.Type: GrantFiled: September 8, 1997Date of Patent: February 2, 1999Assignee: National Starch and Chemical Investment Holding CorporationInventors: Ju-Ming Hung, James W. Nowicki, George A. Hespe, Paul P. Puletti
-
Patent number: 5670566Abstract: A carton, case or tray formed utilizing a hot melt adhesive composition said adhesive consisting essentially of a) 10 to 60% by weight of at least one ethylene n-butyl acrylate copolymer containing 25 to 45% by weight n-butyl acrylate and having a melt index of at least about 850; b) 20 to 60% of a rosin ester tackifying resin; c) 10 to 50% by weight of a microcrystalline or paraffin wax having a melting point of 150.degree. to 200.degree. F.; d) 1 to 20% by weight of a polymeric additive selected from the group consisting of ethylene vinyl acetate containing 10 to 40% by weight vinyl acetate, ethylene methyl acrylate polymers containing 10 to 28% methyl acrylate, ethylene acrylic acid copolymers having an acid number of 25 to 150, polyethylene, polypropylene, poly-(butene-1-co-ethylene), and lower melt index ethylene n-butyl acrylate copolymers; and e) 0 to 1.5% stabilizer, said adhesive characterized by a viscosity of less than 3000 cps at 135.degree. C., fiber tearing bonds from within the range of -35.Type: GrantFiled: January 6, 1995Date of Patent: September 23, 1997Assignee: National Starch and Chemical Investment Holding CorporationInventors: Ingrid Liedermooy, Daniel C. Stauffer, Paul P. Puletti
-
Patent number: 5545472Abstract: A specific class of water-borne, water redispersible laminating adhesives is disclosed which is desirable for bonding nonwoven substrates to themselves or to other substrates. The adhesives provide improved bond strength and improved water redispersibility when compared to laminating adhesives currently used for the same purpose. Furthermore, the novel adhesives are much less sensitive to the presence of significant levels of plasticizer than are laminating adhesives currently used, which exhibit reduced water redispersibility when such plasticizers are present in significant amounts. The novel laminating adhesives contain an aqueous styrene/acrylic polymer dispersion prepared by radical-initiated emulsion polymerization of unsaturated monomers in the presence of starch degradation products having a weight average molecular weight range of from about 2500 to 25000 and which are obtainable by hydrolysis in the aqueous phase.Type: GrantFiled: February 22, 1995Date of Patent: August 13, 1996Assignee: National Starch and Chemical Investment Holding CorporationInventors: Timothy C. Koubek, Paul P. Puletti, Joseph Wieczorek, Jr.
-
Patent number: 5532300Abstract: A specific class of water-borne, water redispersible laminating adhesives is disclosed which is desirable for bonding nonwoven substrates to themselves or to other substrates. The adhesives provide improved bond strength and improved water redispersibility when compared to laminating adhesives currently used for the same purpose. Furthermore, the novel adhesives are much less sensitive to the presence of significant levels of plasticizer than are laminating adhesives currently used, which exhibit reduced water redispersibility when such plasticizers are present in significant amounts. The novel laminating adhesives contain an aqueous styrene/acrylic polymer dispersion prepared by radical-initiated emulsion polymerization of unsaturated monomers in the presence of starch degradation products having a weight average molecular weight range of from about 2500 to 25000 and which are obtainable by hydrolysis in the aqueous phase.Type: GrantFiled: August 12, 1994Date of Patent: July 2, 1996Assignee: National Starch and Chemical Investment Holding CorporationInventors: Timothy C. Koubek, Paul P. Puletti, Joseph Wieczorek, Jr.
-
Patent number: 5500472Abstract: Hot melt adhesive compositions consisting essentially of: a) 15 to 45% by weight of at least one ethylene n-butyl acrylate copolymer containing 15 to 40% by weight n-butyl acrylate and having a melt index of at least 600; b) 25 to 55% of a terpene phenolic tackifying resin or a hydrogenated derivative thereof, the resin having a Ring and Ball softening point less than 125.degree. C.; c) 15 to 40% by weight of a low melting point synthetic Fischer-Tropsch wax; and d) 0 to 1.5% stabilizer. The adhesives are characterized by an excellent balance of high and low temperature performance without sacrifice to machinability or thermal stability.Type: GrantFiled: February 17, 1995Date of Patent: March 19, 1996Assignee: National Starch and Chemical Investment Holding CorporationInventors: Ingrid Liedermooy, Julie Birch, Daniel C. Stauffer, Paul P. Puletti
-
Patent number: 5442001Abstract: The use of C.sub.1 -C.sub.5 alkyl butyrates, d-limonene, ethylene glycol monobutyl ether and C.sub.5 -C.sub.20 petroleum distillates and normal paraffins in place of methyl chloroform (1,1,1-trichloroethane) in conventional waterborne packaging and converting adhesives provides comparable or better adhesive products with reduced environmental and health related problems.Type: GrantFiled: September 7, 1994Date of Patent: August 15, 1995Assignee: National Starch and Chemical Investment Holding CorporationInventors: M. Erin Jones, Paul P. Puletti
-
Patent number: 5331033Abstract: Hot melt packaging adhesive compositions consisting essentially of 20 to 50% by weight of an ethylene n-butyl acrylate copolymer containing 25-45% by weight, preferably 30 to 40% n-butyl acrylate and having a melt index of at least 10; 30 to 60% of an aliphatic or cycloaliphatic hydrocarbon resin or hydrogenated derivative thereof or a hydrogenated aromatic hydrocarbon resin; and 10 to 30% by weight of a high melting synthetic wax provide adhesives characterized by an excellent balance of high and low temperature performance without sacrifice to machinability or thermal stability. Further, the adhesive is characterized by a low density and consequently is readily filterable in recycling systems.Type: GrantFiled: February 23, 1993Date of Patent: July 19, 1994Assignee: National Starch and Chemical Investment Holding CorporationInventors: Daniel Stauffer, Paul P. Puletti, Thomas F. Kauffman
-
Patent number: 5312850Abstract: Hot melt adhesive compositions are prepared from 20 to 98% by weight of a polylactide homo- or copolymer containing at least 20 molar percent of the lactide component; 2 to 80% by weight of a polar tackifier having a Ring and Ball softening point (as described by ASTM E-26) greater than about 60.degree. C.; 0 to 50% by weight of a plasticizer; 0 to 30% by weight of a wax diluent; 0-3% by weight of a stabilizer; and 0-20% of starch. By utilizing a naturally occurring, thermoplastic, biodegradable copolymer as the base polymer, these adhesives advance the state of the art of hot melt adhesives by alleviating the dependence on petroleum based materials and by allowing for the development of hot melt adhesives which either degrade naturally after coming in contact with the soil or which can be composted.Type: GrantFiled: January 4, 1993Date of Patent: May 17, 1994Assignee: National Starch and Chemical Investment Holding CorporationInventors: Carmine P. Iovine, Thomas F. Kauffman, Jules E. Schoenberg, Paul P. Puletti
-
Patent number: 5252646Abstract: Hot melt adhesive compositions are prepared from 20 to 98% by weight of a polylactide homo- or copolymer containing at least 20 molar percent of the lactide component; 2 to 80% by weight of a polar tackifier having a Ring and Ball softening point (as described by ASTM E-26) greater than about 60.degree. C.; 0 to 50% by weight of a plasticizer; 0 to 30% by weight of a wax diluent; 0-3% by weight of a stabilizer; and 0-20% of a polymer. By utilizing a naturally occurring, thermoplastic, biodegradable copolymer as the base polymer, these adhesives advance the state of the art of hot melt adhesives by alleviating the dependence on petroleum based materials and by allowing for the development of hot melt adhesives which either degrade naturally after coming in contact with the soil or which can be composted.Type: GrantFiled: October 29, 1992Date of Patent: October 12, 1993Assignee: National Starch and Chemical Investment Holding CorporationInventors: Carmine P. Iovine, Thomas F. Kauffman, Jules E. Schoenberg, Paul P. Puletti
-
Patent number: 5169889Abstract: Hot melt adhesive compositions are prepared from 20 to 90% by weight of a linear polyester of 3-hydroxybutyric and 3-hydroxyvaleric acids containing 9 to 35% of the hydroxyvalerate component; 10 to 80% by weight of a polar tackifier having a Ring and Ball softening (as described by ASTM E-26) greater than about 60.degree. C.; 0 to 50% by weight of a plasticizer; 0 to 30% by weight of a wax diluent and 0-3% by weight of a stabilizer; 0-20% of a compatible polymer. By utilizing a naturally occurring, thermoplastic, biodegradable copolymer as the base polymer, these adhesives advance the state of the art of hot melt adhesives by alleviating the dependence on petroleum based materials and by allowing for the development of hot melt adhesives which either degrade naturally after coming in contact with the soil or which can be composted.Type: GrantFiled: January 27, 1992Date of Patent: December 8, 1992Assignee: National Starch and Chemical Investment Holding CorporationInventors: Thomas Kauffman, Francis X. Brady, Paul P. Puletti, Gary Raykovitz
-
Patent number: 5001179Abstract: 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: GrantFiled: January 13, 1989Date of Patent: March 19, 1991Assignee: National Starch and Chemical Investment Holding CorporationInventors: Thomas F. Kauffman, Paul P. Puletti
-
Patent number: 4956207Abstract: 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: GrantFiled: November 14, 1988Date of Patent: September 11, 1990Assignee: National Starch and Chemical Investment Holding CorporationInventors: Thomas F. Kauffman, Paul P. Puletti
-
Patent number: 4822653Abstract: 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: GrantFiled: August 5, 1987Date of Patent: April 18, 1989Assignee: National Starch and Chemical CorporationInventors: Thomas F. Kauffman, Paul P. Puletti
-
Patent number: 4718898Abstract: Leakage resistant waste barriers for use on absorbent articles are prepared by coating a portion of a nonwoven sheet with a water insoluble or water impermeable hot melt adhesive composition.Type: GrantFiled: June 26, 1986Date of Patent: January 12, 1988Assignee: National Starch and Chemical CorporationInventors: Paul P. Puletti, Stanley J. Decowski, Jr.
-
Patent number: 4692161Abstract: Leakage resistant waste barriers for use on absorbent articles are prepared by coating a portion of a nonwoven sheet with a water insoluble or water impermeable hot melt adhesive composition.Type: GrantFiled: June 26, 1986Date of Patent: September 8, 1987Assignee: National Starch and Chemical CorporationInventors: Paul P. Puletti, Stanley J. Decowski, Jr.
-
Patent number: 4627847Abstract: Leakage resistant waste barriers for use on absorbent articles are prepared by coating a portion of a nonwoven sheet with a water insoluble or water impermeable hot melt adhesive composition.Type: GrantFiled: April 3, 1985Date of Patent: December 9, 1986Assignee: National Starch and Chemical CorporationInventors: Paul P. Puletti, Stanley J. Decowski, Jr.
-
Patent number: 4578302Abstract: Fiber reinforced tape laminates characterized by superior strength properties are prepared utilizing a hot melt pressure sensitive adhesive comprising a styrene-butadiene block or multi-block copolymer, a tackifying resin and an oil.Type: GrantFiled: June 27, 1985Date of Patent: March 25, 1986Assignee: National Starch and Chemical CorporationInventors: Robert C. Schmidt, Jr., Paul P. Puletti
-
Patent number: 4526577Abstract: Styrene-butadiene block copolymers are used as hot melt bonding agents in the formation of disposable laminates by using multi-line adhesive application.Type: GrantFiled: January 9, 1984Date of Patent: July 2, 1985Assignee: National Starch and Chemical CorporationInventors: Robert C. Schmidt, Jr., Paul P. Puletti
-
Patent number: 4460728Abstract: Hot melt adhesive compositions are prepared from ethylene copolymers, atactic polypropylene, tackifying resins and optional additives. The adhesives are non-pressure sensitive and are characterized by high cohesive strength, strong tack, and good heat, creep and cold resistance. In accordance with the preferred embodiment, the adhesives are formulated so as to be particularly adaptable for use in the construction of disposable diapers of the multi-line construction variety.Type: GrantFiled: February 28, 1983Date of Patent: July 17, 1984Assignee: National Starch and Chemical CorporationInventors: Robert C. Schmidt, Jr., Stanley J. Decowski, Jr., Paul P. Puletti
-
Patent number: 4419494Abstract: Conventional hot melt adhesive formulations based on A-B-A type block copolymers are improved with respect to their heat and plasticizer resistance by addition thereto of a polymeric fatty acid polyamide.Type: GrantFiled: March 16, 1982Date of Patent: December 6, 1983Assignee: National Starch and Chemical CorporationInventors: Paul P. Puletti, Catherine Stubler Salerno