Patents Represented by Attorney, Agent or Law Firm Stephen T. Falk
  • Patent number: 6589384
    Abstract: A solventless urethane adhesive layer which proves excellent oxygen and moisture barrier properties is formed from the reaction of A) a low molecular weight polyester formed from a single species of linear aliphatic diol and a single species of dicarboxylic acid with B) a single species of diisocyanate.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: July 8, 2003
    Assignee: Rohm and Haas Company
    Inventors: Mai Chen, Jeffrey Harold Deitch
  • Patent number: 6462163
    Abstract: A solventless urethane adhesive layer which proves excellent oxygen and moisture barrier properties is formed from the reactio of A) a low molecular weight polyester formed from a single species of linear aliphatic diol and a single species of dicarboxylic acid with B) a single species of diisocyanate.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: October 8, 2002
    Assignee: Morton International, Inc.
    Inventors: Mai Chen, Jeffrey H. Deitch
  • Patent number: 6395836
    Abstract: A copolymer containing at least two acrylic copolymers having a specific range of glass transition temperatures is disclosed. The copolymer provides a film having excellent physical properties. The process for forming the copolymer is also disclosed.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: May 28, 2002
    Assignee: Rohm and Haas Company
    Inventor: Tomohiro Shinoda
  • Patent number: 6383324
    Abstract: An insulated glass sealant having the best characteristics of polysulfides and polyurethanes rather than the worst is made from a polysulfide-based polyurethane prepared by a one-step procedure wherein a randomly copolymeric hydroxyl-terminated polysulfide polyacetal is reacted with a polyisocyanate at a ratio of from about 1:1 to about 1:1.2 on an equivalents basis. The copolymeric hydroxyl-terminated polysulfide polyacetal is made by the condensation of formaldehyde with a mixture of a dithiodialkylene glycol and an aliphatic or cycloaliphatic diol.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: May 7, 2002
    Assignee: Morton International, Inc.
    Inventors: David E. Vietti, Stephen J. Hobbs, Keith B. Potts, Arlene C. Hanson
  • Patent number: 6358357
    Abstract: A higher-barrier acrylic/chlorinated vinyl or acrylic/chlorinated vinyl/vinyl latex adhesive component and a lower-barrier acrylic or acrylic/vinyl latex adhesive component are mixed in relative proportions and used to adhere films of low-barrier material, such as films of polyolefins, thereby providing an adhesive layer of controlled gas barrier properties.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: March 19, 2002
    Assignee: Morton International, Inc.
    Inventors: Robert M. Lamber, H. Dale Sherman
  • Patent number: 6325887
    Abstract: A stable colloidal aqueous dispersion of a partially and homogeneously crosslinked polyurethane/polyurea is made by inserting an integral emulsifier and an internal dispersion stabilizer into a polyurethane having a polyester- or polycaprolactone diol backbone and chain extending and crosslinking it with a mixture of diamine and triamine having a functionality of from 2.05 to 2.18. A highly concentrated solution of a dihydroxycarboxylic acid in a solvent such as N-methyl pyrrolidone permits the hydroxyl groups to react thoroughly and quickly with an isocyanate-terminated polyurethane and, consequently, a minimal amount of the solvent is present in the adhesive after water is removed from the aqueous dispersion. The adhesive is thus heat resistant at 70° C. despite its relatively small degree of crosslinking.
    Type: Grant
    Filed: April 30, 1998
    Date of Patent: December 4, 2001
    Assignee: Morton International, Inc.
    Inventor: Charles J. Amirsakis
  • Patent number: 6322650
    Abstract: An insulated glass sealant having the best characteristics of polysulfides and polyurethanes rather than the worst is made from a polysulfide-based polyurethane which, in turn, is derived from a mixture of hydroxyl terminated polysulfides having a structure represented by the following formula: RCH2CH2OCH2OCH2CH2S[SCH2CH2OCH2OCH2CH2S]nSCH2CH2OCH2OCH2CH2R. wherein R═HO(CH2)ySS, y is from 2 to 6, and n is such that the molecular weight is from about 2500 to about 4000. The improved sealant of this invention is prepared by a one-step procedure wherein the hydroxyl terminated polysulfide of said formula is reacted with a polyisocyanate at a ratio between about 1:1 and about 1:1.2 on an equivalents basis. The hydroxyl-terminated polysulfide is made by splitting a polysulfide having a molecular weight about 30 times greater in an aqueous latex dispersion with a dithiodialkylene glycol and sodium sulfite.
    Type: Grant
    Filed: April 15, 1999
    Date of Patent: November 27, 2001
    Assignee: Morton International Inc.
    Inventors: John R. Gilmore, Steven J. Hobbs, Keith B. Potts
  • Patent number: 6306991
    Abstract: A method of crosslinking an oxidative polymer having oxidatively crosslinkable functional groups and a two-pack composition used therein. The oxidatively crosslinkable functional groups on the oxidative polymer are crosslinked by contacting the oxidative polymer with a catalytic amount of an oxidizing enzyme, such as horseradish peroxidase. The present invention is further directed to a two-pack coating composition which includes a polymeric component and a catalytic component, which are mixed together prior to use.
    Type: Grant
    Filed: August 11, 2000
    Date of Patent: October 23, 2001
    Assignee: Rohm and Haas Company
    Inventors: Gordon Charles Fischer, Gary Robert Larson
  • Patent number: 6235344
    Abstract: A method of improving an adhesive article, such tape, a label or repositionable paper, containing a paper facestock layer and an adhesive layer is disclosed. The adhesive layer contains a pressure sensitive adhesive and voided latex particles. The incorporation of the voided latex particles into the adhesive layer provides opacity and improves shear strength, without unacceptably compromising the tack and peel adhesion properties of the adhesive layer and without causing wear to processing equipment relative to conventional fillers.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: May 22, 2001
    Assignee: Rohm and Haas Company
    Inventor: John David Whiteman
  • Patent number: 6203916
    Abstract: An aqueous adhesive composition for wet lamination of substrate layers to form a laminated article includes from about 40 weight percent to about 65 weight percent solids dispersed in an aqueous medium, wherein the solids include a polymer having repeating units derived from a vinyl ester monomer and having a glass transition temperature of about −15° C. to about +15° C.; and from about 0.1 parts by weight to about 40 parts by weight of a plasticizer compound per 100 parts by weight of the polymer. A method for making a laminated article includes applying a wet layer of the aqueous laminating adhesive composition of the to a first substrate layer; covering the wet layer of adhesive composition with a second substrate layer; and drying the layer of adhesive composition to form the laminated article. A laminated article includes two substrate layers bonded together by an interposed layer of the dried adhesive composition.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: March 20, 2001
    Assignee: Rohm and Haas Company
    Inventors: Eric Karl Eisenhart, Bradley Anson Jacobs, Louis Christopher Graziano
  • Patent number: 6180242
    Abstract: An aqueous adhesive composition for wet lamination of substrate layers to form a laminated article includes from about 40 weight percent to about 65 weight percent solids dispersed in an aqueous medium, wherein the solids include a polymer having repeating units derived from a vinyl ester monomer and having a glass transition temperature of about −15° C. to about +15° C.; and from about 0.1 parts by weight to about 40 parts by weight of a plasticizer compound per 100 parts by weight of the polymer. A method for making a laminated article includes applying a wet layer of the aqueous laminating adhesive composition of the to a first substrate layer; covering the wet layer of adhesive composition with a second substrate layer; and drying the layer of adhesive composition to form the laminated article. A laminated article includes two substrate layers bonded together by an interposed layer of the dried adhesive composition.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: January 30, 2001
    Assignee: Rohm and Haas Company
    Inventors: Eric Karl Eisenhart, Bradley Anson Jacobs, Louis Christopher Graziano
  • Patent number: 6149977
    Abstract: A method of crosslinking an oxidative polymer having oxidatively crosslinkable functional groups and a two-pack composition used therein is provided. The oxidatively crosslinkable functional groups on the oxidative polymer are crosslinked by contacting the oxidative polymer with a catalytic amount of an oxidizing enzyme, such as horseradish peroxidase. The present invention is further directed to a two-pack coating composition which includes a polymeric component and a catalytic component, which are mixed together prior to use.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: November 21, 2000
    Assignee: Rohm and Haas Company
    Inventors: Gordon Charles Fischer, Gary Robert Larson
  • Patent number: 6120638
    Abstract: An improved method for forming book casing is provided through an adhesive composition. The adhesive provides surprising adhesion to both paper and plastic films with also allowing higher processing rates. Book casings produced with the adhesives are also claimed.
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: September 19, 2000
    Assignee: Rohm and Haas Company
    Inventors: Steven Michael Baxter, Bradley Anson Jacobs
  • Patent number: 6080802
    Abstract: Titanium dioxide particles are dispersed in an aqueous medium with a polymeric latex which adsorbs to the surface of the titanium dioxide to give a low-viscosity slurry or pigment grind of composite titanium dioxide-polymeric latex particles. A high glass transition polymeric latex can be used as the dispersant, and a low glass transition temperature binder latex can be added. The zeta potential of the polymeric latex can be at least about 30 millivolts more negative than the zeta potential of the titanium dioxide. The adsorbed polymeric latex provides more optimal spacing of the titanium dioxide particles in films formed from coating compositions formulated using the composite particles, and consequently greater film opacity and hiding at a given pigment volume concentration.
    Type: Grant
    Filed: December 3, 1991
    Date of Patent: June 27, 2000
    Assignee: Rohm and Haas Company
    Inventors: William David Emmons, Martin Vogel, Edward C. Kostansek, Jack C. Thibeault, Peter R. Sperry
  • Patent number: 5990363
    Abstract: The invention comprises a method for the oxidation of alkanes to alcohols and for decomposition of hydroperoxides to alcohols utilizing new compositions of matter, which are metal complexes of porphyrins. Preferred complexes have hydrogen, haloalkyl or haloaryl groups in meso positions, two of the opposed meso atoms or groups being hydrogen or haloaryl, and two of the opposed meso atoms or groups being hydrogen or haloalkyl, but not all four of the meso atoms or groups being hydrogen. Other preferred complexes are ones in which all four of the meso positions are substituted with haloalkyl groups and the beta positions are substituted with halogen atoms. A new method of synthesizing porphyrinogens is also disclosed.
    Type: Grant
    Filed: December 29, 1993
    Date of Patent: November 23, 1999
    Assignee: Sun Company, Inc.
    Inventors: Tilak Wijesekera, James E. Lyons, Paul E. Ellis, Jr.
  • Patent number: 5916693
    Abstract: A pressure-sensitive adhesive composition includes from about 30 weight percent to about 70 weight percent solids in an aqueous medium. The solids include an acrylic polymer having a glass transition temperature of from about -25.degree. C. to about -85.degree. C. and having an acid number of from about 3 to about 30 and from about 0.75 parts by weight to about 5 parts by weight of a humectant per 100 parts polymer.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: June 29, 1999
    Assignee: Rohm and Haas Company
    Inventor: Paul Ralph Van Rheenen
  • Patent number: 5861536
    Abstract: The present invention comprises a process for catalytic oxidative ammination of aromatic hydrocarbons which comprising contacting aromatic feedstock with oxidant, such as molecular oxygen, under suitable reaction conditions, in the presence of a catalyst comprising three essential components: a support; transition metal; and a mono- or binucleating ligand. In one embodiment of the invention the ligand comprises at least one nitro or nitroso group. In another embodiment, the ligand comprises a multidentate, chelating binuclear compound. The process is particularly suited, for example, to the one-step conversion of benzene to aniline.
    Type: Grant
    Filed: July 31, 1997
    Date of Patent: January 19, 1999
    Assignee: Sun Company, Inc. (R&M)
    Inventors: Vincent A. Durante, Tilak P. Wijesekera, Swati Karmakar
  • Lgt
    Patent number: 5840538
    Abstract: The invention provides Lgt polypeptides and DNA (RNA) encoding Lgt polypeptides and methods for producing such polypeptides by recombinant techniques. Also provided are methods for utilizing Lgt polypeptides to screen for antibacterial compounds.
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: November 24, 1998
    Assignee: SmithKline Beecham Corporation
    Inventor: Chantal Myriam Petit
  • Patent number: 5840560
    Abstract: The invention provides Glucose Kinase polypeptides and DNA (RNA) encoding Glucose Kinase polypeptides and methods for producing such polypeptides by recombinant techniques. Also provided are methods for utilizing Glucose Kinase polypeptides to screen for antibacterial compounds.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: November 24, 1998
    Assignee: SmithKline Beecham Corporation
    Inventors: Michael Terence Black, John Edward Hodgson, David Justin Charles Knowles, Michael Arthur Lonetto, Richard O. Nicholas, Robert King Stodola, Martin Karl Russel Burnham
  • Patent number: D400123
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: October 27, 1998
    Assignee: Asprey London Limited
    Inventor: Stefano Ricci