Patents Represented by Attorney, Agent or Law Firm Stephen T. Falk
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Patent number: 6589384Abstract: 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: GrantFiled: March 15, 2001Date of Patent: July 8, 2003Assignee: Rohm and Haas CompanyInventors: Mai Chen, Jeffrey Harold Deitch
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Patent number: 6462163Abstract: 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: GrantFiled: March 14, 2001Date of Patent: October 8, 2002Assignee: Morton International, Inc.Inventors: Mai Chen, Jeffrey H. Deitch
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Patent number: 6395836Abstract: 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: GrantFiled: September 20, 2000Date of Patent: May 28, 2002Assignee: Rohm and Haas CompanyInventor: Tomohiro Shinoda
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Patent number: 6383324Abstract: 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: GrantFiled: November 24, 1999Date of Patent: May 7, 2002Assignee: Morton International, Inc.Inventors: David E. Vietti, Stephen J. Hobbs, Keith B. Potts, Arlene C. Hanson
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Patent number: 6358357Abstract: 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: GrantFiled: July 7, 1997Date of Patent: March 19, 2002Assignee: Morton International, Inc.Inventors: Robert M. Lamber, H. Dale Sherman
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Patent number: 6325887Abstract: 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: GrantFiled: April 30, 1998Date of Patent: December 4, 2001Assignee: Morton International, Inc.Inventor: Charles J. Amirsakis
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Patent number: 6322650Abstract: 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: GrantFiled: April 15, 1999Date of Patent: November 27, 2001Assignee: Morton International Inc.Inventors: John R. Gilmore, Steven J. Hobbs, Keith B. Potts
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Patent number: 6306991Abstract: 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: GrantFiled: August 11, 2000Date of Patent: October 23, 2001Assignee: Rohm and Haas CompanyInventors: Gordon Charles Fischer, Gary Robert Larson
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Patent number: 6235344Abstract: 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: GrantFiled: January 11, 2000Date of Patent: May 22, 2001Assignee: Rohm and Haas CompanyInventor: John David Whiteman
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Patent number: 6203916Abstract: 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: GrantFiled: April 14, 2000Date of Patent: March 20, 2001Assignee: Rohm and Haas CompanyInventors: Eric Karl Eisenhart, Bradley Anson Jacobs, Louis Christopher Graziano
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Patent number: 6180242Abstract: 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: GrantFiled: April 14, 2000Date of Patent: January 30, 2001Assignee: Rohm and Haas CompanyInventors: Eric Karl Eisenhart, Bradley Anson Jacobs, Louis Christopher Graziano
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Patent number: 6149977Abstract: 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: GrantFiled: April 6, 1999Date of Patent: November 21, 2000Assignee: Rohm and Haas CompanyInventors: Gordon Charles Fischer, Gary Robert Larson
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Patent number: 6120638Abstract: 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: GrantFiled: September 17, 1997Date of Patent: September 19, 2000Assignee: Rohm and Haas CompanyInventors: Steven Michael Baxter, Bradley Anson Jacobs
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Patent number: 6080802Abstract: 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: GrantFiled: December 3, 1991Date of Patent: June 27, 2000Assignee: Rohm and Haas CompanyInventors: William David Emmons, Martin Vogel, Edward C. Kostansek, Jack C. Thibeault, Peter R. Sperry
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Patent number: 5990363Abstract: 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: GrantFiled: December 29, 1993Date of Patent: November 23, 1999Assignee: Sun Company, Inc.Inventors: Tilak Wijesekera, James E. Lyons, Paul E. Ellis, Jr.
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Patent number: 5916693Abstract: 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: GrantFiled: April 11, 1997Date of Patent: June 29, 1999Assignee: Rohm and Haas CompanyInventor: Paul Ralph Van Rheenen
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Patent number: 5861536Abstract: 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: GrantFiled: July 31, 1997Date of Patent: January 19, 1999Assignee: Sun Company, Inc. (R&M)Inventors: Vincent A. Durante, Tilak P. Wijesekera, Swati Karmakar
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Patent number: 5840538Abstract: 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: GrantFiled: August 6, 1997Date of Patent: November 24, 1998Assignee: SmithKline Beecham CorporationInventor: Chantal Myriam Petit
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Patent number: 5840560Abstract: 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: GrantFiled: July 17, 1997Date of Patent: November 24, 1998Assignee: SmithKline Beecham CorporationInventors: Michael Terence Black, John Edward Hodgson, David Justin Charles Knowles, Michael Arthur Lonetto, Richard O. Nicholas, Robert King Stodola, Martin Karl Russel Burnham
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Patent number: D400123Type: GrantFiled: February 27, 1997Date of Patent: October 27, 1998Assignee: Asprey London LimitedInventor: Stefano Ricci