Patents by Inventor John G. Iacoviello

John G. Iacoviello 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: 5244695
    Abstract: A method for making a nonwoven filter which comprises impregnating a nonwoven filter substrate with a curable binder composition, the binder composition consisting essentially of(a) 10 to 100 wt% fully hydrolyzed PVOH which has a DPn of 100 to 2300; and(b) 0 to 90 wt% aqueous polymer emulsion, on a solids basis.The preferred aqueous polymer emulsion is an ethylene-vinyl chloride (EVCl) copolymer emulsion or a vinyl acetate/-N-methylolacrylamide (VAc/NMA) copolymer emulsion, or both.
    Type: Grant
    Filed: March 17, 1992
    Date of Patent: September 14, 1993
    Assignee: Air Products and Chemicals, Inc.
    Inventors: George Davidowich, John G. Iacoviello, John S. Sadowski
  • Patent number: 5180772
    Abstract: Vinyl acetate/ethylene (VAE) copolymer emulsions having extended shelf life which are particularly suited for use as binders of nonwoven substrates. The copolymer emulsions are prepared by incorporating 1 to 45 wt % tetramethylol glycoluril, based on the amount of vinyl acetate in the copolymer, into an aqueous dispersion of a copolymer consisting essentially of 60 to 94 wt % vinyl acetate, 5 to 30 wt % ethylene and 1 to 10 wt % of a crosslinkable comonomer. Suitable crosslinking monomers include N-acrylamidoglycolic acid and N-methylol acrylamide. Nonwoven products formed by depositing the emulsion onto a nonwoven substrate exhibit significantly improved resistance to organic solvents.
    Type: Grant
    Filed: February 28, 1989
    Date of Patent: January 19, 1993
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Chung-Ling Mao, Joel E. Goldstein, John G. Iacoviello
  • Patent number: 5084503
    Abstract: A vinyl acetate-ethylene copolymer emulsion comprising an aqueous colloidal dispersion of a copolymer containing 65 to 90 wt % vinyl acetate and 10 to 35 wt % ethylene prepared by the emulsion polymerization of the monomers in the presence of a stabilizing system consisting essentially of an 86 to 90 mole % partially hydrolyzed polyvinyl alcohol, a 98 to 99+ mole % fully hydrolyzed polyvinyl alcohol, in a partially hydrolyzed polyvinyl alcohol:fully hydrolyzed polyvinyl alcohol weight ratio from 3:1 to 1:3, and a nonionic polyalkoxylated surfactant.Also disclosed is a carpet backing adhesive composition comprising such a vinyl acetate-ethylene copolymer emulsion, about 0.1 to 3 parts by weight dispersant, about 0.1 to 10 parts by weight thickening agent and between 300 and about 1000 parts by weight filler, all of the components being per 100 parts of the copolymer.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: January 28, 1992
    Assignee: Air Products and Chemicals, Inc.
    Inventor: John G. Iacoviello
  • Patent number: 4999239
    Abstract: Aqueous emulsions containing an ethylene-vinyl chloride (EVCl) copolymer and tetramethylol glycoluril are described for use as binder compositions suitable for application onto nonbonded filter paper. The emulsions are prepared by incorporating 4 to 10 wt % tetramethylol glycoluril, based on the total weight of the emulsion copolymer, into an aqueous dispersion of a copolymer consisting essentially of 65 to 90 wt % vinyl chloride, 5 to 35 wt % ethylene and optionally, up to 10 wt % of a hydroxyalkyl- or carboxylic acid-containing functional comonomer. The polymerization is conducted in the presence of a stabilizing system consisting essentially of 3 to 15 wt % polyvinyl alcohol. Filter paper impregnated with these emulsions maintain tensile strength and flexibility upon being subjected to hot oil.
    Type: Grant
    Filed: May 31, 1990
    Date of Patent: March 12, 1991
    Assignee: Air Products and Chemicals, Inc.
    Inventors: John G. Iacoviello, George Davidowich, Bheema R. Vijayendran, John S. Sadowski
  • Patent number: 4975320
    Abstract: A two stage polymerization process for preparing a vinyl acetate/ethylene emulsion copolymer containing a monomer which is normally incompatible with vinyl acetate. In the first stage the vinyl acetate and ethylene and, optionally, an active crosslinking comonomer and/or latent crosslinking comonomer are free radical polymerized in the presence of a stabilizing system to yield a first stage polymer emulsion. When the free vinyl acetate monomer content of the first stage emulsion is less than about 5%, the second stage polymerization begins by adding the incompatible monomer. Preferably, there is no cessation of the addition of the free radical source during the transition from the first stage to the second stage polymerization. No additional stabilizing system is added to the reaction in the second stage.Vinyl acetate/ethylene/incompatible comonomer/latent crosslinking comonomer copolymers prepared by the two stage polymerization process are suitably used as binders for making nonwoven products.
    Type: Grant
    Filed: February 1, 1989
    Date of Patent: December 4, 1990
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Joel E. Goldstein, Chung-Ling Mao, John G. Iacoviello
  • Patent number: 4962141
    Abstract: Aqueous emulsions containing an ethylene-vinyl chloride (EVCl) copolymer and tetramethylol glycoluril are described for use as binder compositions suitable for application onto nonbonded filter paper. The emulsions are prepared by incorporating 4 to 10 wt % tetramethylol glycoluril, based on the total weight of the emulsion copolymer, into an aqueous disperson of a copolymer consisting essentially of 65 to 90 wt % vinyl chloride 5 to 35 wt % ethylene and optionally, up to 10 wt % of a hydroxyalkyl- or carboxylic acid-containing functional comonomer. The polymerization is conducted in the presence of a stabilizing system consisting essentially of 3 to 15 wt % polyvinyl alcohol. Filter paper impregnated with these emulsions maintain tensile strength and flexibility upon being subjected to hot oil.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: October 9, 1990
    Assignee: Air Products and Chemicals, Inc.
    Inventors: John G. Iacoviello, George Davidowich, Bheema R. Vijayendran, John S. Sadowski
  • Patent number: 4921898
    Abstract: A vinyl acetate-ethylene copolymer emulsion which is about 65-70% solids and has a viscosity of less than about 3,500 is disclosed. The emulsion is prepared by copolymerization of vinyl acetate and ethylene monomers in the presence of a stabilizing system consisting essentially of 2-4 wt %, based on vinyl acetate monomer, of a polyvinyl alcohol having a 100-600 degree of polymerization and 2-4wt %, based on vinyl acetate monomer, of a surfactant. Such emulsions demonstrate an improved speed of set as an adhesive.
    Type: Grant
    Filed: February 17, 1987
    Date of Patent: May 1, 1990
    Assignee: Air Products and Chemicals, Inc.
    Inventors: William E. Lenney, John G. Iacoviello
  • Patent number: 4844970
    Abstract: A crosslinkable anionic binder composition which comprises an emulsion copolymer containing acrylamidoglycolic acid (AGA) and a zirconium III salt of an alpha or beta hydroxycarboxylic acid, the pH of the composition being from about 1.5 to 4.5. Provided are nonwoven binder compositions which are stable for extended periods prior to application of the binder composition onto the nonwoven substrate and initiation of crosslinking by application of heat.
    Type: Grant
    Filed: January 12, 1988
    Date of Patent: July 4, 1989
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Joel E. Goldstein, John G. Iacoviello, Gary G. Hawn, Gerald R. Cook
  • Patent number: 4767816
    Abstract: An aqueous copolymer emulsion comprising a copolymer consisting essentially of vinyl chloride, ethylene and up to 10 wt % hydroxyalkyl (meth)acrylate colloidally dispersed in an aqueous medium. The copolymer demonstrates improved solvent resistance and metal adhesion, especially to low energy films.
    Type: Grant
    Filed: June 24, 1987
    Date of Patent: August 30, 1988
    Assignee: Air Products and Chemicals, Inc.
    Inventors: John G. Iacoviello, William J. Hook, Bheema R. Vijayendran
  • Patent number: 4735986
    Abstract: A vinyl acetate-ethylene copolymer emulsion comprising an aqueous colloidal dispersion of a copolymer containing 65 to 90 wt % vinyl acetate and 10 to 35 wt % ethylene prepared by the emulsion polymerization of the monomers in the presence of a stabilizing system consisting essentially of an 86 to 90 mole % partially hydrolyzed polyvinyl alcohol, a 98 to 99+ mole % fully hydrolyzed polyvinyl alcohol, in a partially hydrolyzed polyvinyl alcohol:fully hydrolyzed polyvinyl alcohol weight ratio from 3:1 to 1:3, and a nonionic polyalkoxylated surfactant.Also disclosed is a carpet backing adhesive composition comprising such a vinyl acetate-ethylene copolymer emulsion, about 0.1 to 3 parts by weight dispersant, about 0.1 to 10 parts by weight thickening agent and between 300 and about 1000 parts by weight filler, all of the components being per 100 parts of the copolymer.
    Type: Grant
    Filed: June 18, 1987
    Date of Patent: April 5, 1988
    Assignee: Air Products and Chemicals, Inc.
    Inventor: John G. Iacoviello
  • Patent number: 4716192
    Abstract: A method for preparing a stable vinyl chloride based resin emulsion which comprises a copolymer colloidally dispersed in an aqueous medium, the copolymer having a Tg from 0.degree. to 50.degree. C.
    Type: Grant
    Filed: March 13, 1987
    Date of Patent: December 29, 1987
    Assignee: Air Products and Chemicals, Inc.
    Inventor: John G. Iacoviello
  • Patent number: 4714731
    Abstract: A metal container coating composition comprising a crosslinking resin and an aqueous polyvinyl alcohol/vinyl chloride-ethylene copolymer emulsion, the copolymer having a Tg from 0.degree. to 50.degree. C., about 65 to 90 wt % vinyl chloride, about 5 to 35 wt % ethylene, 0 to 10 wt % olefinically unsaturated copolymerizable monomer and prepared by emulsion polymerization of vinyl chloride, ethylene and, optionally, an olefinically unsaturated comonomer in the presence of 3 to 15 wt % polyvinyl alcohol as the dispersing agent.
    Type: Grant
    Filed: March 13, 1987
    Date of Patent: December 22, 1987
    Assignee: Air Products and Chemicals, Inc.
    Inventor: John G. Iacoviello
  • Patent number: 4678829
    Abstract: A metal container coating composition comprising a crosslinking resin and an aqueous polyvinyl alcohol/vinyl chloride-ethylene copolymer emulsion, the copolymer having a Tg from 0.degree. to 50.degree. C., about 65 to 90 wt. % vinyl chloride, about 5 to 35 wt. % ethylene, 0 to 10 wt. % olefinically unsaturated copolymerizable monomer and prepared by emulsion polymerization of vinyl chloride, ethylene and, optionally, an olefinically unsaturated comonomer in the presence of 3 to 15 wt. % polyvinyl alcohol as the dispersing agent.Also a method for preparing such stable vinyl chloride based resin emulsions comprising(a) forming an aqueous emulsion reaction mixture containing substantially all the polyvinyl alcohol and a portion, preferably at least 5%, of the total vinyl chloride monomer,(b) pressurizing the reaction mixture with an ethylene pressure sufficient to provide the copolymer with a 5 to 35 wt.
    Type: Grant
    Filed: June 20, 1985
    Date of Patent: July 7, 1987
    Assignee: Air Products and Chemicals, Inc.
    Inventor: John G. Iacoviello
  • Patent number: 4673702
    Abstract: A method for preparing a stable vinyl chloride based resin emulsion which comprises a copolymer colloidally dispersed in an aqueous medium, the copolymer having a Tg from 0.degree. to 50.degree. C.
    Type: Grant
    Filed: June 20, 1985
    Date of Patent: June 16, 1987
    Assignee: Air Products and Chemicals, Inc.
    Inventor: John G. Iacoviello
  • Patent number: 4449978
    Abstract: A nonwoven product formed from a nonwoven web of fibers bonded together with a binder comprising an interpolymer of vinyl acetate/ethylene/N-methylol acrylamide/acrylamide, the interpolymer comprising about 5 to 40 wt % ethylene and an amount of N-methylol acrylamide and acrylamide which is about 3.0 to 10 wt % of the interpolymer, the N-methylol acrylamide being about 1.75 to 3.5 wt % and the acrylamide about 1.25 to 8.25 wt %. Such nonwoven products have a low residual free formaldehyde content and good tensile properties.
    Type: Grant
    Filed: April 1, 1983
    Date of Patent: May 22, 1984
    Assignee: Air Products and Chemicals, Inc.
    Inventor: John G. Iacoviello
  • Patent number: 4447570
    Abstract: A binder composition for nonwoven fabrics which comprises(a) a fugitive base salt of a phosphate ester surfactant or a carboxylate surfactant,(b) a latex comprising a vinyl acetate-ethylene-olefinically unsaturated carboxylic acid interpolymer colloidally suspended in water, the interpolymer containing about 0.5 to 7.0 weight percent olefinically unsaturated carboxylic acid and sufficient ethylene to provide the interpolymer with a glass transition temperature of from about -30.degree. to +20.degree. C., and(c) a polyvalent metal complex compound comprising a polyvalent metal ion and counter ions or ligands which hinder interaction of the polyvalent metal ion with the carboxylate and phosphate groups of the surfactant and interpolymer at room temperature, but at elevated temperature permit such interaction because the counter ions or ligands are expelled or are replaced by the anionic group of the surfactant and interpolymer.
    Type: Grant
    Filed: March 1, 1982
    Date of Patent: May 8, 1984
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Gerald R. Cook, John G. Iacoviello, Robert K. Pinschmidt, Jr., George Davidowich
  • Patent number: 4332850
    Abstract: This invention relates to a vinyl acetate-ethylene copolymer containing emulsion particularly adapted for the preparation of nonwoven goods. The vinyl acetate-ethylene emulsion is prepared by an improved process for producing an aqueous emulsion suitably adapted for producing non-woven goods said emulsion containing a vinyl acetate-ethylene copolymer wherein said copolymer contains from about 75-96% by weight of vinyl acetate. It is produced by forming an aqueous suspension of vinyl acetate, ethylene, and stabilizer, initiating the polymerization of the reaction mixture by the addition of catalysts, and adding from about 0.5-10% by weight of the vinyl acetate of a crosslinkable monomer. The improvement for enhancing the absorptivity of the copolymer comprises:pressurizing the reactor with ethylene to an initial ethylene equilibrium pressure of from about 100 to 1,000 psig;initiating the reaction mixture by the addition of catalyst at a temperature from about 10.degree.-35.degree. C.
    Type: Grant
    Filed: May 26, 1981
    Date of Patent: June 1, 1982
    Assignee: Air Products and Chemicals, Inc.
    Inventor: John G. Iacoviello
  • Patent number: 4260533
    Abstract: This invention relates to latex compositions for use as a paint vehicle particularly for the manufacture of interior semi-gloss and flat exterior paint compositions. The latex composition comprises from about 40-70% by weight of resin particles, the resin particles having at least 25% vinyl acetate polymerized therein, and from about 0.5-10% of a copolymerizable allylic amine having at least one allylic group attached directly to an amino nitrogen and at least one hydrogen atom attached directly to an amino nitrogen atom. In a preferred instance, the resin particles comprise vinyl acetate, a lower alkyl acrylate or ethylene, optionally vinyl chloride and the allylic amine.
    Type: Grant
    Filed: August 27, 1979
    Date of Patent: April 7, 1981
    Assignee: Air Products and Chemicals, Inc.
    Inventors: John G. Iacoviello, Wiley E. Daniels
  • Patent number: 4239563
    Abstract: Use of vinyl acetate-ethylene copolymer emulsions as laminating adhesives for rug backing is disclosed. The copolymer emulsions are prepared by admixing vinyl acetate-ethylene copolymer, dispersant and thickening agent together, with or without the addition of filler. The vinyl acetate-ethylene copolymer can contain between about 20 and about 70 parts by weight of vinyl acetate and between about 30 and about 80 parts by weight of ethylene. The resulting vinyl acetate-ethylene copolymer emulsions have a glass transition temperature (T.sub.g) of between about -35.degree. C. and about -10.degree. C.
    Type: Grant
    Filed: September 5, 1979
    Date of Patent: December 16, 1980
    Assignee: Air Products and Chemicals, Inc.
    Inventor: John G. Iacoviello
  • Patent number: 4219454
    Abstract: This invention relates to a latex composition particularly suited as a paint vehicle for the manufacture of semi-gloss and flat interior paint compositions. The latex composition comprises from about 40 to 70% by weight of copolymer resin particles having at least 50% vinyl acetate polymerized therein, the particles being substantially spherical and characterized in that not more than 5% of the particles have a size greater than 0.65 microns and not more than 5% have a particle size less than 0.33 microns. In the preferred instance, the resin particles comprise vinyl acetate, a lower alkyl acrylate and a conventional wet adhesion monomer, the combination consisting of from about 80 to 90% vinyl acetate, 10 to 20% of lower alkyl acrylate, e.g., butyl acrylate and 0.2 to 1.5% of the wet adhesion monomer.
    Type: Grant
    Filed: September 5, 1978
    Date of Patent: August 26, 1980
    Assignee: Air Products and Chemicals, Inc.
    Inventors: John G. Iacoviello, Wiley E. Daniels