Patents Represented by Attorney Michael Leach

Find this attorney in the Justia Lawyer Directory

  • Tertiary amine catalyst composition for polyurethane foam in contact with polyvinyl chloride
    Patent number: 5168009
    Abstract: A stain resistant polyvinyl chloride covered polyurethane foam article in which the polyurethane foam is made using a tertiary amine catalyst composition in which the amine functionality is 10-40 mole % neutralized with an acid composition consisting essentially of 10-100 mole % strong acid and 0-90 mole % weak acid.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: December 1, 1992
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Robert G. Petrella, James D. Tobias
  • Hydroxyl group-containing amine-boron adducts are reduced odor catalyst compositions for the production of polyurethanes
    Patent number: 5166223
    Abstract: An amine-boron composition for catalyzing the urethane reaction, particularly in preparing a polyurethane foam, consisting essentially of the addition product of a tertiary amine and a boron compound of the formulaR.sub.n B(OH).sub.3-nwheren=0 or 1, andR=C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.8 cycloalkyl or C.sub.6 -C.sub.10 aryl.Preferred catalysts are prepared by mixing triethylenediamine or 3-quinuclidonol with boric acid.
    Type: Grant
    Filed: February 20, 1992
    Date of Patent: November 24, 1992
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Ann C. L. Savoca, Michael Louie, Mark L. Listemann
  • Amine-boron adducts as reduced odor catalyst compositions for the production of polyurethanes
    Patent number: 5162379
    Abstract: An amine-boron composition for catalyzing the urethane reaction, particularly in preparing a polyurethane foam, consisting essentially of the addition product of a tertiary amine and a boron compound of the formula R.sub.n B(OH).sub.3-n wheren=0 or 1, andR=C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.8 cycloalkyl or C.sub.6 -C.sub.10 aryl.Preferred catalysts are prepard by mixing triethylenediamine with boric acid.
    Type: Grant
    Filed: January 31, 1992
    Date of Patent: November 10, 1992
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Ann C. L. Savoca, Michael Louie
  • Heterocyclic diorganotin catalysts for use in polyurethane systems
    Patent number: 5149844
    Abstract: Useful as catalysts for the reaction of a polyisocyanate or a partially blocked polyisocyanate with a hydroxy-containing compound are organotins of the formula ##STR1## where R is a C.sub.1 -C.sub.8 alkyl or an aryl group,Y is --CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH.sub.2 --, --CH.sub.2 CH(CH.sub.3)--, --CH.sub.2 CH(OH)CH.sub.2 --, or ##STR2## and X is a linking group which may be --S-- or --O--.Also disclosed are cationic electrodepositable compositions containing such catalysts.
    Type: Grant
    Filed: September 9, 1991
    Date of Patent: September 22, 1992
    Assignee: Air Products and Chemicals, Inc.
    Inventors: James D. Nichols, John B. Dickenson
  • Polymeric diorganotin catalysts for use in polyurethane systems
    Patent number: 5145976
    Abstract: Useful as catalysts for the reaction of a polyisocyanate or a partially blocked polyisocyanate with a hydroxy-containing compound are organotin compositions obtained by reacting a diorganotin oxide of the formula R.sub.2 SnO of a diorganotin dichloride of the formula R.sub.2 SnCl.sub.2 with a compound of the formula HS--CH.sub.2 CH(OH)CH.sub.2 XH where R is a C.sub.1 -C.sub.8 alkyl or an aryl group and X is --O-- or --S--.Also disclosed are cationic electrodepositable (CED) compositions containing such catalysts.
    Type: Grant
    Filed: September 6, 1991
    Date of Patent: September 8, 1992
    Assignee: Air Products and Chemicals, Inc.
    Inventors: James D. Nichols, John B. Dickenson
  • 3-quinuclidinol catalyst compositions for making polyurethane foams
    Patent number: 5143944
    Abstract: A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, a cell stabilizer and a catalyst composition consisting essentially of at least one compound of the following formula: ##STR1## where R is hydrogen, C.sub.1 -C.sub.8 alkyl, C.sub.6 -C.sub.10 aryl or C.sub.7 -C.sub.10 aralkyl, and n is 0-3. The preferred catalyst consists essentially of of the compound when n is 0, namely 3-quinuclidinol.
    Type: Grant
    Filed: January 30, 1992
    Date of Patent: September 1, 1992
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Ann C. L. Savoca, Mark L. Listemann
  • Vinyl acetate/ethylene copolymer emulsions having improved wet tack properties
    Patent number: 5143966
    Abstract: In a vinyl acetate-ethylene copolymer emulsion prepared by the aqueous emulsion copolymerization of vinyl acetate and ethylene in the presence of a polyvinyl alcohol stabilizing system, the improvement which comprises a vinyl acetate-ethylene copolymer emulsion prepared in the presence of a stabilizing system consisting essentially of:(a) 0.2 top 1.5 wt % low molecular weight, partially hydrolyzed polyvinyl alcohol,(b) 0.5 to 2.5 wt % medium molecular weight, partially hydrolyzed polyvinyl alcohol, and(c) 1 to 4 wt % medium molecular weight and/or high molecular weight, fully hydrolyzed polyvinyl alcohol,the weight percentages based on vinyl acetate monomer.
    Type: Grant
    Filed: November 7, 1990
    Date of Patent: September 1, 1992
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Hsueh-Chi Lee, William E. Lenney
  • Melt extrudable polyvinyl alcohol pellets having reduced maximum melt temperature and reduced gel content
    Patent number: 5137969
    Abstract: A method for extruding polyvinyl alcohol which comprisesadding sufficient energy to the polyvinyl alcohol to both melt it and essentially eliminate the crystallinity in the melt, andsimultaneously removing energy from the melt at a rate sufficient to avoid decomposition of the polyvinyl alcohol.Rapidly cooling the extruded melt reduces the heat history and improves the resulting color of the extrudable polyvinyl alcohol.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: August 11, 1992
    Assignee: Air Products and Chemicals, Inc.
    Inventors: F. Lennart Marten, Amir Famili, James F. Nangeroni
  • Amine-boron adducts as reduced odor catalyst compositions for the production of polyurethanes
    Patent number: 5130403
    Abstract: An amine-boron composition for catalyzing the urethane reaction, particularly in preparing a polyurethane foam, consisting essentially of the addition product of a tertiary amine and a boron compound of the formula R.sub.n B(OH).sub.3-nwheren=0 or 1, andR=C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.8 cycloalkyl or C.sub.6 -C.sub.10 aryl.Preferred catalysts are prepared by mixing triethylenediamine with boric acid.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: July 14, 1992
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Ann C. L. Savoca, Michael Louie
  • Transparent caulks containing fumed silica
    Patent number: 5124384
    Abstract: In a sealant composition comprising a polymer latex, filler, plasticizer, silane adhesion promoter, and fumed silica, the improvement which comprises as the plasticizer a C.sub.1 -C.sub.8 alkyl aryl phthalate, an N-(C.sub.1 -C.sub.8)alkyl arylsulfonamide, or mixtures thereof.
    Type: Grant
    Filed: November 16, 1990
    Date of Patent: June 23, 1992
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Joel E. Goldstein
  • High solids vinyl acetate-ethylene copolymer emulsions prepared using a stabilizing system comprising poly(ethyloxazoline)
    Patent number: 5124394
    Abstract: A method for preparing an aqueous copolymer emulsion comprising the aqueous copolymerization of vinyl acetate and ethylene in the presence of a stabilizing system consisting essentially of a stabilizing effective amount of poly(ethyloxazoline).
    Type: Grant
    Filed: April 12, 1991
    Date of Patent: June 23, 1992
    Assignee: Air Products and Chemicals, Inc.
    Inventor: William E. Lenney
  • Vinyl acetate/ethylene/NMA copolymer emulsion for nonwoven binder applications
    Patent number: 5109063
    Abstract: A process for making an aqueous vinyl acetate/ethylene/N-methylolacrylamide copolymer emulsion comprising:(a) adding an initial charge containing all the vinyl acetate monomer to be polymerized and an effective amount of an emulsifying system consisting essentially of an anionic surfactant, especially a salt of an alkylphenoxy poly(ethyleneoxy) sulfate containing about 3-5 ethyleneoxy units,(b) pressurizing the reactor with sufficient ethylene to yield a copolymer having the desired Tg,(c) initiating polymerization at a temperature from 45.degree. to 85.degree. C., and(d) continuing polymerization at a temperature from 45.degree. to 85.degree. C., while continuously adding N-methylolacrylamide over a period of time such that the free vinyl acetate monomer content of the reaction medium is about 2-4% upon completion of the N-methylolacrylamide addition.
    Type: Grant
    Filed: December 10, 1990
    Date of Patent: April 28, 1992
    Assignee: Air Products and Chemicals, Inc
    Inventors: Tze-Chiang Cheng, Phillip A. Mango
  • Aqueous vinyl chloride-ethylene copolymer/polyisocyanate adhesive compositions for wood composites
    Patent number: 5092953
    Abstract: A water-based adhesive composition comprising a polyvinyl alcohol stabilized vinyl chloride-ethylene copolymer latex and 5-50 wt %, based on copolymer, of a polyisocyanate material. The adhesive composition has improved pot life and is used to prepare wood composites demonstrating improved water resistance.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: March 3, 1992
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Richard Derby, Bheema R. Vijayendran
  • Polymeric diorganotin catalysts for use in polyurethane systems
    Patent number: 5089584
    Abstract: Useful as catalysts for the reaction of a polyisocyanate or a partially blocked polyisocyanate with a hydroxy-containing compound are organotin compositions obtained by reacting a diorganotin oxide of the formula R.sub.2 SnO or a diorganotin dichloride of the formula R.sub.2 SnCl.sub.2 with a compound of the formula HS--CH.sub.2 CH(OH)CH.sub.2 XH where R is a C.sub.1 -C.sub.8 alkyl or an aryl group and X is --O-- or --S--.Also disclosed alre cationic electrodepositable (CED) compositions containing such catalysts.
    Type: Grant
    Filed: October 20, 1989
    Date of Patent: February 18, 1992
    Assignee: Air Products and Chemicals, Inc.
    Inventors: James D. Nichols, John B. Dickenson
  • Hydroxyl-containing organotin catalysts for making polyurethanes
    Patent number: 5089645
    Abstract: Useful as catalysts for the reaction of a polyisocyanate or a partially blocked polyisocyanate with a hydroxyl-containing compound are hydroxyl-containing organotins such as, for example, compounds of formulas I-III ##STR1## where R is a C.sub.1 -C.sub.8 alkyl or an aryl group;R.sup.1 is a C.sub.2 -C.sub.22 divalent hydrocarbyl group which may contain a hydroxyl substituent;X is a linking group which may be --O--, --S-- or --O.sub.2 C--;Y is a hydroxyl-containing C.sub.3 -C.sub.5 alkylene group;Y' is a C.sub.1 -C.sub.9 divalent hydrocarbyl group;Z is divalent organic linking group; andn is 0 or 1.Suitable hydroxyl-containing organotin compounds would also include polymeric organotin compounds prepared by the reaction of a diorganotin oxide or diorganotin dichloride with HSCH.sub.2 CH(OH)CH.sub.2 XH, preferably in a 1:0.5-1 molar ratio, where X is --S-- or --O--.
    Type: Grant
    Filed: December 17, 1990
    Date of Patent: February 18, 1992
    Assignee: Air Products and Chemicals, Inc.
    Inventors: James D. Nichols, John B. Dickenson
  • Foam saturation and release coating of a fibrous substrate
    Patent number: 5089296
    Abstract: A release coating is applied to a paper web or other woven or non-woven substrate in the form of a foam. A foamed saturant can also be applied to the paper web or other substrate followed by the application of a foamed or unfoamed release coating composition to the paper web, without an intermediate drying step between the application of the foamed saturant, and the application of the release coating.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: February 18, 1992
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Richard A. Bafford, George E. Faircloth
  • Heterocyclic diorganotin catalysts for use in polyurethane systems
    Patent number: 5089583
    Abstract: Useful as catalysts for the reaction of a polyisocyanate or a partially blocked polyisocyanate with a hydroxy-containing compound are organotins of the formula ##STR1## where R is a C.sub.1 -C.sub.8 alkyl or an aryl group.Y is --CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH.sub.2 --, --CH.sub.2 CH(CH.sub.3)--, --CH.sub.2 CH(OH)CH.sub.2 --, or ##STR2## and X is a linking group which may be --S-- or --O--.Also disclosed are cationic electrodepositable compositions containing such catalysts.
    Type: Grant
    Filed: October 20, 1989
    Date of Patent: February 18, 1992
    Assignee: Air Products and Chemicals, Inc.
    Inventors: James D. Nichols, John B. Dickenson
  • Amine-boron adducts as reduced odor catalyst compositions for the production of polyurethanes
    Patent number: 5086081
    Abstract: An amine-boron composition for catalyzing the urethane reaction, particularly in preparing a polyurethane foam, consisting essentially of the addition product of a tertiary amine and a boron compound of the formula R.sub.n B(OH).sub.3-n wheren=0 or 1, andR=C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.8 cycloalkyl or C.sub.6 -C.sub.10 aryl.Preferred catalysts are prepared by mixing triethylenediamine with boric acid.
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: February 4, 1992
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Ann C. L. Savoca, Michael Louie
  • Vinyl acetate-ethylene copolymer emulsions useful as carpet adhesives
    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
  • Blowing reaction catalyst composition that provides cell opening of the resulting polyurethane foam
    Patent number: 5057480
    Abstract: A method for preparing a polyurethane foam which comprises reacting inorganic polyisocyanate and a polyol in the presence of a catalyst composition comprising a blowing catalyst and a gelling catalyst, the improvement which comprises employing a blowing catalyst consisting essentially of(a) 25 to 80 wt % pentamethyldiethylenetriamine and(b) 20 to 75 wt % bis(dimethylaminopropyl)methylamine.The catalyst composition provides the resulting polyurethane foam with improved breathability.
    Type: Grant
    Filed: March 12, 1991
    Date of Patent: October 15, 1991
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Robert G. Petrella