Patents Represented by Attorney J. A. Powell

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  • A redispersible core-shell polymer powder
    Patent number: 5403894
    Abstract: Redispersible polymer powders made by core-shell polymers having an alkali-soluble emulsion polymer shell and an aqueous-insoluble emulsion polymer core wherein the core and the shell polymers are chemically grafted by utilizing a polyfunctional compound. The core-shell polymers are produced by a two-stage sequential emulsion polymerization process in which an alkali-insoluble emulsion polymer core is polymerized in the presence of an alkali-solubilized emulsion polymer. When the core-shell polymer powders of this invention are employed as a cement modifier, improvements in the powder physical properties and cement mortar properties are realized.
    Type: Grant
    Filed: July 11, 1991
    Date of Patent: April 4, 1995
    Assignee: Rohm and Haas Company
    Inventors: Min-Chi Tsai, George A. Papsin, Jr., Shang-Jaw Chiou
  • Reproducing method for excluding undesirable tunes by operating a single manipulator
    Patent number: 5394384
    Abstract: An operation mode is first selected in which tunes recorded in a digital audio disk are sequentially reproduced. Reproduction-undesired tunes are selected by operating a manipulator for stopping reproduction of a currently reproduced tune and starting the next tune during every reproduction of the reproduction-undesired tunes so that their numbers are stored in a memory. In subsequent reproductions, the number of each tune going to be reproduced is compared with the numbers of the reproduction-undesired tunes stored in the memory and the tune is skipped if its number is included in the stored numbers.
    Type: Grant
    Filed: March 18, 1994
    Date of Patent: February 28, 1995
    Assignee: Pioneer Electronic Corporation
    Inventors: Yoshio Aoyagi, Hiroyuki Abe
  • Monocarboxylic acid powder coating curing systems
    Patent number: 5393846
    Abstract: A thermosetting powder coating composition having improved optical and weathering properties, such as gloss, orange peel, and Distinctness of Image (DOI), while maintaining other physical properties such as flexibility, durability, solvent and corrosive resistance, which comprises a reactable mixture of a carboxylic acid group-containing polyester, a monocarboxylic acid group-containing material and beta-hydroxyalkylamide curing agent.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: February 28, 1995
    Assignee: Rohm and Haas Company
    Inventors: David A. Hammerton, Karlheinz Kromberger
  • Aminosilanes for non-bleed aqueous liquid paper
    Patent number: 5370922
    Abstract: This invention relates to an aqueous correcting fluid, the use of which prevents bleeding of aqueous ink dyes during correction of writing errors or erasure of documents using white out. This is accomplished according to the present invention by the fact that the correcting fluid contains an anionic or non-ionic active binder plus an aminosilanes. The aminosilane-modified correcting fluid of this invention may be substituted for solvent-based fluids, without adversely affecting other properties such as water resistance, opacity and curing.
    Type: Grant
    Filed: October 6, 1993
    Date of Patent: December 6, 1994
    Assignee: Rohm and Haas Company
    Inventors: Kay C. Sanborn, Linda S. Smith
  • Method for promoting blood vessel healing
    Patent number: 5348553
    Abstract: A method of repairing a blood vessel having a narrowed portion therein comprising the steps of expanding the narrowed portion of the blood vessel so that the diameter of the blood vessel after expansion is enlarged; and then maintaining an electronegative potential on the interior surface of the expanded narrowed portion of the blood vessel to at least as great as any electropositive potential generated by the blood vessel as a result of the injury to the blood vessel caused by the expansion thereof.
    Type: Grant
    Filed: December 18, 1991
    Date of Patent: September 20, 1994
    Inventor: Douglass G. Whitney
  • Fatty acid hydroxyalkylamides as coreactable stabilizers and flow aids for powder coatings
    Patent number: 5346960
    Abstract: A thermosetting powder coating composition having improved optical properties, such as orange peel, gloss and Distinctness of Image (DOI), which includes a reactable mixture of a carboxylic acid group-containing polyester or acrylic, a fatty acid hydroxyalkylamide group-containing material and beta-hydroxyalkylamide curing agent.
    Type: Grant
    Filed: February 22, 1993
    Date of Patent: September 13, 1994
    Assignee: Rohm and Haas Company
    Inventors: Richard F. Merritt, Kurt A. Wood, Aurelia de la Cuesta Sheppard
  • Process for polymerization of itaconic acid
    Patent number: 5336744
    Abstract: Polymers of itaconic acid are formed at high conversion by an aqueous polymerization process of partially neutralized monomer solution, water, polyvalent metal ion and initiator.Polymers produced according to the process of the invention are useful as detergent additives, scale inhibitors and removers, sequestrants, yarn sizers, deflocculating agents, de-inking agents, suspending agents and dispersing agents.
    Type: Grant
    Filed: March 17, 1993
    Date of Patent: August 9, 1994
    Assignee: Rohm and Haas Company
    Inventors: Graham Swift, Kathryn M. Yocom
  • Multi-stage polymer latex cement modifier and process of making
    Patent number: 5328952
    Abstract: Multi-stage polymer process and composition having an alkali-insoluble emulsion polymer and an alkali-soluble polymer are produced by a two-stage sequential emulsion polymerization process. When the multi-stage polymers of this invention are utilized as cement modifiers, improvements in cement mortar physical properties are realized.
    Type: Grant
    Filed: February 14, 1992
    Date of Patent: July 12, 1994
    Assignee: Rohm and Haas Company
    Inventors: John G. Brodnyan, Shang-Jaw Chiou, Mark P. de Grandpre
  • Comprehensive vehicle information storage system
    Patent number: 5325082
    Abstract: A vehicle information storage system for all vehicle electronic sensors comprising a condition monitoring subsystem(7) and a storage subsystem(9). The condition monitoring subsystem(7) comprises, display(30), warning lamps(32), and a central processing unit(24) with a microprocessor and memory. The storage subsystem(9) comprising a central data processor(31) with a plurality of storage devices(16) one for each of a plurality sensor inputs(11), a plurality of remote receiving units(10), and a data routing unit(14). All the sensor inputs in the storage subsystem(7) are connected to the central data processor(31) over a single wire with the centrally located data routing unit(14) and the plurality of remote receiving units(10). Each sensor input(11) is monitored according to the information content of the associated sensor data as determined by prior analysis.
    Type: Grant
    Filed: November 19, 1992
    Date of Patent: June 28, 1994
    Inventor: Juan C. Rodriguez
  • Vinyl monomer compositions with accelerated surface cure
    Patent number: 5288807
    Abstract: This invention relates to vinyl monomer compositions having accelerated surface cure characteristics. These compositions are prepared from a vinyl monomer or monomer mixtures such as blend of isobornyl methacrylate and hydroxypropyl methacrylate, a bulk phase polymerization catalyst system, a polyvalent metal oxidative surface phase catalyst, and a diolefin rubber dispersed in the vinyl monomer as a surface cure accelerator. These compositions are useful as sealers, healers and for polymer concrete.
    Type: Grant
    Filed: July 2, 1991
    Date of Patent: February 22, 1994
    Assignee: Rohm and Haas Company
    Inventor: Frederick P. Hinz
  • Multi-stage polymer particles having a hydrophobically-modified, ionically-soluble stage
    Patent number: 5266646
    Abstract: Multi-stage polymer particles comprising at least one hydrophobically-modified, ionically-soluble polymer stage polymerized from a) hydrophobic monomer, b) ethylenically-unsaturated, ionizable monomer, c) non-ionic, ethylenically-unsaturated monomer and optionally d) multi-functional compound are improved thickeners.
    Type: Grant
    Filed: August 24, 1992
    Date of Patent: November 30, 1993
    Assignee: Rohm and Haas Company
    Inventors: Eric K. Eisenhart, Dennis P. Lorah, Susan R. Gill, Eric A. Johnson
  • Monocarboxylic acid power coating curing systems
    Patent number: 5266657
    Abstract: A thermosetting powder coating composition having improved optical and weathering properties, such as gloss, orange peel, and Distinctness of Image (DOI), while maintaining other physical properties such as flexibility, durability, solvent and corrosive resistance, which comprises a reactable mixture of a carboxylic acid group-containing polyester, a monocarboxylic acid group-containing material and beta-hydroxyalkylamide curing agent.
    Type: Grant
    Filed: May 29, 1991
    Date of Patent: November 30, 1993
    Assignee: Rohm and Haas Company
    Inventors: David A. Hammerton, Karlheinz Kronberger
  • Tire shaping pressure control system and method
    Patent number: 5256348
    Abstract: A system for controlling the shaping fluid pressure in tire bladders in a tire molding press which senses the fluid pressure in the bladder used to shape the tire being loaded into the tire press; compares the sensed fluid pressure in the bladder with the desired set point fluid pressure to be maintained in the bladder; and adjusts the fluid pressure in the bladder in response to the compared pressures to cause the fluid pressure in the bladder to be maintained at the desired set point fluid pressure.
    Type: Grant
    Filed: June 13, 1991
    Date of Patent: October 26, 1993
    Inventor: Michael V. Waller
  • Heat pump water heater control circuit
    Patent number: 5255338
    Abstract: An external circuit that works in conjunction with the existing tank thermostatic controls to control both a water heating heat pump and the existing resistance elements in a water heater. The existing resistance elements are disabled to allow the heat pump to heat the water unless a large volume of hot water is quickly withdrawn whereupon the resistance elements are re-enabled to heat the water for a faster recovery rate.
    Type: Grant
    Filed: July 12, 1991
    Date of Patent: October 19, 1993
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Glen P. Robinson, Jr., Andrew L. Blackshaw
  • Aqueous aerosol coating compositions
    Patent number: 5250599
    Abstract: An aqueous aerosol coating composition comprising a blend of neutralized acrylic dispersible polymer having a relatively high Tg, high acid number and low molecular weight, with a drying oil-modified, low molecular weight copolymer in a water-based carrier and propellant system which comprises dimethyl ether, water and a water-soluble organic solvent. Compositions containing the blend of this invention produce polymer coatings that possess improved drying time without adversely effecting other physical properties.
    Type: Grant
    Filed: July 30, 1991
    Date of Patent: October 5, 1993
    Assignee: Rohm and Haas Company
    Inventor: Andrew J. Swartz
  • Spiral flighted double walled heat exchanger
    Patent number: 5238058
    Abstract: A heat transfer coil and method of manufacture where a second piece of tubing is wound around a first piece of tubing while the first piece is straight, where the first piece of tubing is then formed to define the overall coil shape, and then the first and second pieces of tubing internally sized by internal pressurization to also force the two pieces of tubing into intimate contact with each other.
    Type: Grant
    Filed: March 18, 1991
    Date of Patent: August 24, 1993
    Inventors: Douglas M. Bodrey, Carl C. Hiller, Andrew L. Blackshaw, Glen P. Robinson, Jr.
  • Prelubricated urinary catheter and package assembly
    Patent number: 5226530
    Abstract: A prelubricated urinary catheter and package assembly for use in draining the bladder through the urethra comprising an elongate catheter tube with a lubricant on the projecting end thereof and a package assembly receiving the catheter therein an arrangement for isolating the lubricant on the projecting end of the catheter from the rest of the catheter in the catheter receiving cavity.
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: July 13, 1993
    Inventor: John H. Golden
  • Dog bed
    Patent number: D340322
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: October 12, 1993
    Inventor: Pearl O. Merritt
  • Tool belt harness
    Patent number: D348153
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: June 28, 1994
    Inventor: James R. Eldridge
  • Cat album
    Patent number: D358605
    Type: Grant
    Filed: May 19, 1994
    Date of Patent: May 23, 1995
    Inventor: Ginger L. Weems