Patents by Inventor Dennis Paul Lorah

Dennis Paul Lorah 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: 6689824
    Abstract: Sets of prepaints useful for forming a road-marking paint line are provided. Also provided are methods which permit the person applying the road-marking paint to vary the properties of the road-marking paint at the application point to suit the ambient conditions, including temperature, humidity, traffic flow and the like.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: February 10, 2004
    Assignee: Rohm and Haas Company
    Inventors: John Michael Friel, John William Hook, III, Bernhard Helmut Lieser, Jerry William Washel, Dennis Paul Lorah, Donald Craig Schall, Ann Robertson Hermes
  • Publication number: 20030232914
    Abstract: An aqueous composition including an aqueous dispersion of polymeric nanoparticles having a mean diameter of from 1 to 50 nanometers, the particles including, as polymerized units, at least one multi-ethylenically-unsaturated monomer and at least one ethylenically unsaturated water soluble monomer is discloseded. Certain embodiments of the composition include pigment particles and other polymer particles. The aqueous compositions include aqueous coating compositions.
    Type: Application
    Filed: June 13, 2003
    Publication date: December 18, 2003
    Inventors: Wayne Devonport, Ralph Craig Even, Ann Robertson Hermes, Dennis Paul Lorah, Joseph David Tanzer, Antony Keith VanDyk
  • Publication number: 20030232918
    Abstract: New aqueous PNP dispersions are disclosed. A method of preparing an aqueous PNP dispersion from solvent-based PNPs having a diameter in the range of from 1 to 50 nanometers is disclosed. An associative thickener composition based on PNPs having an average of at least two phobes extending from the surface of said PNPs is also disclosed. The aqueous PNP dispersions are useful in aqueous-based industrial and consumer products, such as latex paint.
    Type: Application
    Filed: June 2, 2003
    Publication date: December 18, 2003
    Inventors: David Richard Amick, Robert Howard Gore, Dennis Paul Lorah, James Watson Neely
  • Publication number: 20030232916
    Abstract: A nonaqueous composition including a nonaqueous medium, a polymer soluble in the nonaqueous medium, and a dispersion of polymeric nanoparticles having a mean diameter of from 1 to 50 nanometers, the particles including, as polymerized units, at least one multiethylenically unsaturated monomer and, in certain embodiments, at least one polar ethylenically unsaturated monomer is provided. A method for providing a coating including the nonaqueous composition and the coating so prepared are also provided.
    Type: Application
    Filed: June 13, 2003
    Publication date: December 18, 2003
    Inventor: Dennis Paul Lorah
  • Publication number: 20030176569
    Abstract: A tinting composition containing a colorant component is disclosed. In addition, a method of improving the viscosity stability of a composition upon the addition of a colorant component employing an associative thickener, a macromolecular organic compound having a hydrophobic cavity, a dispersing resin and combinations thereof is disclosed.
    Type: Application
    Filed: April 4, 2003
    Publication date: September 18, 2003
    Inventors: Joseph David Tanzer, Jerome Michael Harris, Henry Jude Eichman, Homayoun Jamasbi, Ronald Carl Faulk, Dennis Paul Lorah
  • Patent number: 6613832
    Abstract: Sets of fluid premixes useful for adhesives and caulks are provided. Also provided are methods of providing adhesive lines and a caulk lines using the sets of premixes. Further provided are ranges of adhesives and caulks based on the adhesive and caulk lines. Utilizing these methods the manufacturer, seller, or user can to adjust the adhesive or caulk at the point of manufacture, sale, or use to suit the processing and end-use conditions, in addition to the other benefits offered by delayed product differentiation.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: September 2, 2003
    Assignee: Rohm and Haas Company
    Inventors: John Michael Friel, John William Hook, III, Jerry William Washel, Dennis Paul Lorah, James Alexander Costanzo
  • Publication number: 20030149165
    Abstract: An aqueous composition suitable for use, when dry, as an improved coating is provided including an aqueous emulsion polymer, the polymer having a glass transition temperature (Tg) from greater than 20° C. to 80° C., formed by the free radical polymerization of at least one ethylenically unsaturated nonionic acrylic monomer and 0-7.5%, by weight based on the total weight of the polymer, ethylenically unsaturated acid monomer in the presence of 0.01-1.0%, by weight based on the total weight of the polymer, t-alkyl hydroperoxide, t-alkyl peroxide, or t-alkyl perester wherein the t-alkyl group includes at least 5 Carbon atoms and, optionally, at least one other oxidant. A method of preparing the emulsion polymer, a method for providing a coated substrate wherein the coating contains the emulsion polymer having a Tg from −20° C. to 80° C., and a method for improving the scrub resistance of a coating by including the emulsion polymer having a Tg from −20° C. to 80° C.
    Type: Application
    Filed: January 23, 2003
    Publication date: August 7, 2003
    Inventors: Albert Benner Brown, Ralph Craig Even, Dennis Paul Lorah, Alvin Michael Maurice, Robert Victor Slone, Xun Tang
  • Patent number: 6545084
    Abstract: An aqueous composition suitable for use, when dry, as an improved coating is provided including an aqueous emulsion polymer, the polymer having a glass transition temperature (Tg) from greater than 20° C. to 80° C., formed by the free radical polymerization of at least one ethylenically unsaturated nonionic acrylic monomer and 0-7.5%, by weight based on the total weight of the polymer, ethylenically unsaturated acid monomer in the presence of 0.01-1.0%, by weight based on the total weight of the polymer, t-alkyl hydroperoxide, t-alkyl peroxide, or t-alkyl perester wherein the t-alkyl group includes at least 5 Carbon atoms and, optionally, at least one other oxidant. A method of preparing the emulsion polymer is also provided.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: April 8, 2003
    Assignee: Rohm and Haas Company
    Inventors: Albert Benner Brown, Ralph Craig Even, Dennis Paul Lorah, Alvin Michael Maurice, Robert Victor Slone, Xun Tang
  • Publication number: 20030060555
    Abstract: Processes for modifying the surface chemistry of a clay are disclosed. In one embodiment, there is provided a process for modifying the surface chemistry of a clay, wherein the process comprises: providing a clay dispersion comprising at least one unmodified clay wherein said clay has a first exchangeable cation; adding a second cation to the clay dispersion, wherein at least a portion of the second cation exchanges with at least a portion of the first cation to form a modified clay dispersion; and combining at least one polar containing agent with the modified clay dispersion to provide a modified clay.
    Type: Application
    Filed: September 25, 2002
    Publication date: March 27, 2003
    Inventors: Dennis Paul Lorah, Robert Victor Slone, George Max Lein
  • Publication number: 20030059599
    Abstract: Provided are improved coatings, polymeric dispersions, and polymeric composites, which include PNPs. Also provided are methods for forming improved coatings, polymeric dispersions, and polymeric composites, which include PNPs. The PNPs have polymerized units of at least one multi-ethylenically-unsaturated monomer have a mean diameter of from 1 to 50 nanometers. PNPs having polymerized units of at least one multi-ethylenically-unsaturated monomer and at least one surface-active monomer are also provided.
    Type: Application
    Filed: March 15, 2002
    Publication date: March 27, 2003
    Inventors: Ronald Scott Beckley, Robert Mitchell Blankenship, Albert Benner Brown, James Tinney Brown, Shang-Jaw Chiou, Anton Georges El A'mma, Susan Jane Fitzwater, Robert Howard Gore, Eric Jon Langenmayr, Dennis Paul Lorah, Warren Harvey Machleder, James Watson Neely, George Harvey Redlich, Curtis Schwartz, Frederick James Schindler, Robert Victor Slone, David William Whitman, Mark Robert Winkle
  • Publication number: 20030055178
    Abstract: Colorant, dispersants, dispersions, and inks are provided which include PNPs having a mean diameter in the range of from 1 to 50 nanometers, the PNPs including as polymerized units at least one multi-ethylenically-unsaturated monomer. Also provided are methods for preparing colorants, dispersants, dispersions, and inks which include PNPs.
    Type: Application
    Filed: March 15, 2002
    Publication date: March 20, 2003
    Inventors: Robert Howard Gore, Eric Jon Langenmayr, Warren Harvey Machleder, Dennis Paul Lorah, Antony Keith Van Dyk, Newman Mayer Bortnick
  • Patent number: 6531537
    Abstract: Methods of providing a paint line containing a latex polymeric binder are described. A range of paints can be formulated using sets of prepaints, at least one of which contains a latex polymeric binder. The paints may be applied as architectural coatings, industrial coatings, graphic arts coating, elastomeric coatings, and non-cementitious, aggregate finish coatings suitable for application on a wall directly or as a topcoat in exterior insulation finishing systems.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: March 11, 2003
    Inventors: John Michael Friel, John William Hook, III, Bernhard Helmut Lieser, Jerry William Washel, Dennis Paul Lorah, Joseph Michael Beno, Jr., Irene May Melly
  • Publication number: 20020183446
    Abstract: An aqueous composition suitable for use, when dry, as an improved coating is provided including an aqueous emulsion polymer, the polymer having a glass transition temperature (Tg) from greater than 20° C. to 80° C., formed by the free radical polymerization of at least one ethylenically unsaturated nonionic acrylic monomer and 0-7.5%, by weight based on the total weight of the polymer, ethylenically unsaturated acid monomer in the presence of 0.01-1.0%, by weight based on the total weight of the polymer, t-alkyl hydroperoxide, t-alkyl peroxide, or t-alkyl perester wherein the t-alkyl group includes at least 5 Carbon atoms and, optionally, at least one other oxidant. A method of preparing the emulsion polymer, a method for providing a coated substrate wherein the coating contains the emulsion polymer having a Tg from −20° C. to 80° C., and a method for improving the scrub resistance of a coating by including the emulsion polymer having a Tg from −20° C. to 80° C.
    Type: Application
    Filed: October 17, 2001
    Publication date: December 5, 2002
    Inventors: Albert Benner Brown, Ralph Craig Even, Dennis Paul Lorah, Alvin Michael Maurice, Robert Victor Slone, Xun Tang
  • Publication number: 20020160182
    Abstract: An aqueous composition suitable for use, when dry, as an improved elastomeric coating, caulk, sealant, fabric treatment, or pressure sensitive adhesive is provided including a predominantly acrylic aqueous emulsion polymer, the polymer having a glass transition temperature (Tg) from −90° C. to 20° C., formed by the free radical polymerization of at least one ethylenically unsaturated nonionic acrylic monomer and 0-7.5%, by weight based on the total weight of said polymer, ethylenically unsaturated acid monomer until 90-99.7% of said monomers by weight, based on the total weight of said polymer, has been converted to polymer and subsequently at least half of the remaining monomer is converted to polymer in the presence of 0.01-0.099%, by weight based on the total weight of said polymer, t-alkyl hydroperoxide, t-alkyl peroxide, or t-alkyl perester wherein the t-alkyl group includes at least 5 Carbon atoms or, alternatively, the polymer is formed in the presence of 0.01-1.
    Type: Application
    Filed: October 17, 2001
    Publication date: October 31, 2002
    Inventors: Dennis Paul Lorah, Robert Victor Slone
  • Publication number: 20020086908
    Abstract: Processes for utilizing various emulsion polymerization procedures for preparing aqueous nanocomposite dispersions are disclosed. The disclosed processes include both in-situ polymerizations in the presence of at least partially exfoliated unmodified clays as well as admixtures of polymer dispersions with at least partially exfoliated unmodified clay dispersions. The disclosed nanocomposite dispersions are useful for preparing a variety of materials, such as coatings, adhesives, caulks, sealants, plastics additives, and thermoplastic resins. Processes for preparing polymer clay nanocomposite powders and use of these powders as plastic resin and plastics additives are also disclosed.
    Type: Application
    Filed: September 17, 2001
    Publication date: July 4, 2002
    Inventors: Chuen-Shyong Chou, Edward Ewart LaFleur, Dennis Paul Lorah, Robert Victor Slone, Katerina Dukes Neglia
  • Publication number: 20020065381
    Abstract: A process for preparing an aqueous emulsion polymer including providing at least one ethylenically unsaturated monomer and a free radical redox initiator system under emulsion polymerization conditions, the redox initiator system composed of t-alkyl hydroperoxide, t-alkyl peroxide, or t-alkyl perester wherein the t-alkyl group includes at least 5 Carbon atoms and a non-formaldehyde-forming reducing agent; and effecting the polymerization of at least some of the ethylenically unsaturated monomer is provided. Also provided is a process for reducing the residual ethylenically unsaturated monomer content of an aqueous emulsion polymer.
    Type: Application
    Filed: June 22, 2001
    Publication date: May 30, 2002
    Inventors: Dennis Paul Lorah, Robert Victor Slone
  • Publication number: 20020058739
    Abstract: The present invention is directed, in part, to improved nanocomposite compositions and processes for preparing same. Specifically, in one embodiment, there is provided a process for preparing an aqueous nanocomposite dispersion, wherein the process comprises: polymerizing via suspension polymerization a suspension comprising at least one ethylenically unsaturated monomer and a hydrophobically modified clay to form the nanocomposite dispersion after polymerization, wherein the hydrophobically modified clay is dispersed in the monomer. Other embodiments include processes for preparing aqueous nanocomposite particles, colloids, and dispersions using hydrophobically modified clays in aqueous systems and compositions comprising same.
    Type: Application
    Filed: September 17, 2001
    Publication date: May 16, 2002
    Inventors: Dennis Paul Lorah, Robert Victor Slone, Thomas Glenn Madle
  • Publication number: 20020058740
    Abstract: The present invention is directed, in part, to improved nanocomposite compositions and processes for preparing same. In one embodiment, there is provided a process for preparing an aqueous nanocomposite dispersion, wherein the process comprises: providing at least one first ethylenically unsaturated monomer; providing an aqueous clay dispersion comprising an at least partially exfoliated aqueous clay having a first exchangeable cation and, optionally, at least one second ethylenically unsaturated monomer; adding a second cation to said aqueous clay dispersion, wherein at least a portion of the second cation exchanges with at least a portion of the first cation to form a modified aqueous clay dispersion; combining the first ethylenically unsaturated monomer and the modified aqueous clay dispersion; and polymerizing at least a portion of the first or second monomer to form the aqueous nanocomposite dispersion wherein at least one of the first or the second monomers comprises a polar monomer.
    Type: Application
    Filed: September 17, 2001
    Publication date: May 16, 2002
    Inventors: Dennis Paul Lorah, Robert Victor Slone
  • Publication number: 20020055581
    Abstract: Processes for utilizing various emulsion polymerization procedures for preparing aqueous nanocomposite dispersions are disclosed. The disclosed processes include both in-situ polymerizations in the presence of at least partially exfoliated, lightly modified clays as well as admixtures of polymer dispersions with at least partially exfoliated, lightly modified clay dispersions. The disclosed nanocomposite dispersions are useful for preparing a variety of materials, such as coatings, adhesives, caulks, sealants, plastics additives, and thermoplastic resins. Processes for preparing polymer nanocomposite powders and use of these powders as plastic resin and plastics additives are also disclosed.
    Type: Application
    Filed: September 17, 2001
    Publication date: May 9, 2002
    Inventors: Dennis Paul Lorah, Robert Victor Slone
  • Publication number: 20020055580
    Abstract: The present invention is directed to, in part, polymer clay nanocomposites having an acid containing monomer and clay. In one embodiment, there is provided a process for preparing an aqueous polymer clay nanocomposite dispersion, wherein the process comprises: providing an aqueous dispersion comprising at least one clay, optionally at least one ethylenically unsaturated monomer, and optionally at least one surfactant; providing a monomer mixture comprising at least 10% by weight of an acid containing monomer within the monomer mixture and optionally a surfactant; mixing the aqueous dispersion and the monomer mixture; and polymerizing the monomer to form the nanocomposite dispersion wherein the clay is at least partially exfoliated within the nanocomposite dispersion. The present invention also relates to the use of these compositions such as thickeners, dispersants, plastics additives, adhesives, coatings, flexographic inks, overprint varnishes, and dry cement powder modifiers.
    Type: Application
    Filed: September 17, 2001
    Publication date: May 9, 2002
    Inventors: Dennis Paul Lorah, Robert Victor Slone