Patents Represented by Attorney Ellen P. Trevors
  • Patent number: 4187219
    Abstract: A pigment coating composition for paper and process for the production of the coating composition by cooking a specially-treated starch product and mixing with clay, wherein the specially-treated starch is characterized as a substantially non-birefringent cold-water swelling, granular starch product.
    Type: Grant
    Filed: December 15, 1977
    Date of Patent: February 5, 1980
    Assignee: CPC International Inc.
    Inventor: Thomas K. Maher
  • Patent number: 4180674
    Abstract: Butyl-p-benzoylbenzoates are prepared by reacting a 4-(trichloromethyl) benzophenone with a butanol in the presence of an acid catalyst. These butyl-p-benzoylbenzoates are valuable photoinitiators for the polymerization of ethylenically unsaturated monomers.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: December 25, 1979
    Assignee: Stauffer Chemical Company
    Inventor: James M. Photis
  • Patent number: 4146453
    Abstract: A stabilized photopolymerizable composition comprising photopolymerizable ethylenically unsaturated monomeric compounds, a photoinitiator and at least one epoxide compound as a stabilizer.
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: March 27, 1979
    Assignee: Stauffer Chemical Company
    Inventor: Francis A. Via
  • Patent number: 4134442
    Abstract: A resin for coating sand and a resin-coated sand produced therefrom wherein the resin is prepared by incorporating furan into a phenolic novolak resin. In the preferred practice, the resin is produced by reaction of furfuryl alcohol with a phenolic compound at an acid pH to give a furfuryl-phenolic intermediate in a first step, and then, in a second step, reacting the furfuryl-phenolic intermediate with a lower aliphatic aldehyde to produce the resin. The resin-coated sands of the present invention provide unexpectedly improved shakeout and collapsibility characteristics in the shell process.
    Type: Grant
    Filed: July 12, 1977
    Date of Patent: January 16, 1979
    Assignee: CPC International Inc.
    Inventor: Robert Laitar
  • Patent number: 4100230
    Abstract: Mono- and disubstituted mercaptophosphorothionochloridates are prepared by reacting a disubstituted sulfide having the formulaR.sub.2 Swherein each R is an independently selected alkyl, cycloalkyl or benzyl, with phosphorus pentasulfide and thiophosphorus trichloride at a temperature from about 150.degree. to about 300.degree. C. A molar ratio of R.sub.2 S to P.sub.4 S.sub.10 to P(S)Cl.sub.3 of 6:1:8 is preferred where the monosubstituted compound is desired, while a ratio of 6:1:2 is preferred where the disubstituted compound is desired. The compounds are useful as intermediates for compounds which exhibit biocidal properties, particularly insecticides and herbicides.
    Type: Grant
    Filed: August 4, 1976
    Date of Patent: July 11, 1978
    Assignee: Stauffer Chemical Company
    Inventors: Eugene H. Uhing, Arthur D. F. Toy
  • Patent number: 4077860
    Abstract: A stabilized photopolymerizable composition comprising photopolymerizable ethylenically unsaturated monomeric compounds, a photoinitiator and at least one organic ammonium salt of phosphorus acid as a stabilizer.
    Type: Grant
    Filed: December 29, 1976
    Date of Patent: March 7, 1978
    Assignee: Stauffer Chemical Company
    Inventor: Francis A. Via
  • Patent number: 4067857
    Abstract: A polycondensation catalyst system comprising an antimony-containing polycondensation catalyst and selected ethylenically unsaturated compounds, such as pentaerythritol triacrylate. The ethylenically unsaturated compound stabilizes tne antimony-containing catalyst.
    Type: Grant
    Filed: May 21, 1976
    Date of Patent: January 10, 1978
    Assignee: Stauffer Chemical Company
    Inventor: Ronald Lee Muntz
  • Patent number: 4067856
    Abstract: A polycondensation process employing a catalyst system comprising an antimony-containing polycondensation catalyst and selected ethylenically unsaturated compounds, such as allyl glycidyl ether. The ethylenically unsaturated compound stabilizes the antimony-containing catalyst.
    Type: Grant
    Filed: May 21, 1976
    Date of Patent: January 10, 1978
    Assignee: Stauffer Chemical Company
    Inventors: Ronald L. Muntz, Francis A. Via
  • Patent number: 4046822
    Abstract: An improved ethylene oxychlorination process wherein the unreacted ethylene in the process off-gas is dried and reacted with chlorine in the presence of a non-reactive liquid to form ethylene dichloride, (1,2-dichloroethane) recovering the ethylene dichloride. The improved process includes a method for drying the gas by contact with ethylene dichloride.
    Type: Grant
    Filed: November 20, 1973
    Date of Patent: September 6, 1977
    Assignee: Stauffer Chemical Company
    Inventor: Frank Titus Severino
  • Patent number: 4042612
    Abstract: Polymeric alkoxysilanes which comprise a polymer network of the average formula ##STR1## WHEREIN EACH R is an independently selected hydrocarbon or hydrocarbon ether radical, each R' is an independently selected hydrocarbon radical, all of said radicals being free of aliphatic unsaturation, a has a value from 1 to 3; and b has a value from 0.0001 to 1.0. These polymers are made by reacting an alkoxysilane of the formula ##EQU1## WITH WATER AND WITH AN ORGANOSULFONIC ACID OF THE FORMULA R.sup.1 SO.sub.3 H. These polymers are useful in zinc-rich paints and in binders for investment castings.
    Type: Grant
    Filed: January 3, 1977
    Date of Patent: August 16, 1977
    Assignee: Stauffer Chemical Company
    Inventor: Walter L. Magee, Jr.
  • Patent number: 4038164
    Abstract: The present invention relates to the use of arylglyoxalate, ring substituted arylglyoxalate and heterocyclic glyoxalate compounds as photoinitiators in the photopolymerization of monomeric and polymeric compositions under the influence of actinic radiation.
    Type: Grant
    Filed: September 18, 1975
    Date of Patent: July 26, 1977
    Assignee: Stauffer Chemical Company
    Inventor: Francis A. Via
  • Patent number: 4015439
    Abstract: The present invention relates to the provision for cooling in systems where above ambient cooling temperatures are indicated, for at least certain system services, while water as a coolant therein is contraindicated.
    Type: Grant
    Filed: June 2, 1975
    Date of Patent: April 5, 1977
    Assignee: Stauffer Chemical Company
    Inventor: Sidney Simon Stern
  • Patent number: 3998967
    Abstract: A method for inhibiting the growth of bacteria and fungi by exposing same to an effective amount of a salt of nitrilotriacetic acid with a higher aliphatic amine containing from about 8 to about 60 carbon atoms. The nitrilotriacetic acid is reacted with an amine containing alkyl, alkenyl and/or cycloalkyl radicals to provide the desired salt.
    Type: Grant
    Filed: July 14, 1975
    Date of Patent: December 21, 1976
    Assignee: Stauffer Chemical Company
    Inventor: Edward D. Weil
  • Patent number: 3991008
    Abstract: Dental compositions having improved color stability are prepared by employing a redox catalyst system consisting of a hydroperoxide oxidizing agent and a substituted thiourea reducing agent. The composition also comprises a methacrylate monomer, and optionally, a filler and a coupling agent.
    Type: Grant
    Filed: August 12, 1974
    Date of Patent: November 9, 1976
    Assignee: The Kendall Company
    Inventors: Samuel C. Temin, Mildred C. Richards
  • Patent number: 3969298
    Abstract: Lipophilic aminimides containing ethylenically-unsaturated moieties and carboxylic acid groups are disclosed. These compounds are useful as monomeric emulsion stabilizers, and may be polymerized with various co-monomers to provide pressure-sensitive adhesives.
    Type: Grant
    Filed: November 8, 1974
    Date of Patent: July 13, 1976
    Assignee: The Kendall Company
    Inventor: Robert C. Gasman
  • Patent number: 3964920
    Abstract: A method for sealing two ceramic pieces, a lead frame and a semiconductor chip together involving the application of pressure to a layer of sealing glass composition which remains vitreous throughout the sealing process is disclosed. The sealing glass composition comprises a mixture of sealing glass and zirconium silicate in the volume percentage amounts of 50-62 percent of glass and 50-38 percent of zirconium silicate. The glass components comprise, as a percentage weight of the glass alone, SiO.sub.2 about 0-2 percent, PbO about 65-72 percent, ZnO about 5-10 percent, PbF.sub.2 about 2-10 percent, CdO about 1-5 percent, TiO.sub.2 about 0.5-3 percent and B.sub.2 O.sub.3 about 10-14 percent.
    Type: Grant
    Filed: October 26, 1973
    Date of Patent: June 22, 1976
    Assignee: Motorola, Inc.
    Inventors: Earl K. Davis, Kent W. Hansen, Duane C. Silvis
  • Patent number: 3959040
    Abstract: There is provided a method and apparatus for use in fabrication of emitter-coupled logic circuits in integrated circuit form in which the base regions for transistor-transistor logic transistors and tub regions for emitter resistors for use in these circuits are fabricated utilizing a compound diffusion process. The use of the compound diffusion process both reduces spiking problems prevalent with emitter resistors while at the same time enabling the appropriate doping concentrations in the bases of both the ECL transistors and the TTL transistors to be established by opening up these regions during specified portions of the fabrication process.
    Type: Grant
    Filed: September 1, 1971
    Date of Patent: May 25, 1976
    Assignee: Motorola, Inc.
    Inventor: Phillip W. Robertson
  • Patent number: 3959562
    Abstract: A flexible, solvent-resistant film backing for pressure-sensitive adhesives is disclosed. The backing comprises a thermoplastic essentially linear polyester-urethane elastomer and a thermoplastic phenoxy resin having the formula ##SPC1##Wherein n is an integer from 50 to 150, the phenoxy resin being present in an amount from about 35 to about 100 parts per 100 parts by weight of the polyester-urethane elastomer.
    Type: Grant
    Filed: November 6, 1973
    Date of Patent: May 25, 1976
    Inventor: Robert H. Hackhel
  • Patent number: 3959355
    Abstract: Quaternary ammonium salts having a lipophilic group covalently linked to the quaternary nitrogen through hydroxysuccinyloxy or hydroxysuccinylamino radicals are disclosed. These quaternary ammonium salts are useful as monomeric emulsion stabilizers.
    Type: Grant
    Filed: June 6, 1974
    Date of Patent: May 25, 1976
    Inventors: Carlos M. Samour, Mildred C. Richards
  • Patent number: 3935768
    Abstract: An improved self-containable disposable diaper wherein a portion of the disposal pouch is slit so as to form integral, oppositely extending wings, the wings preferably having means thereon for completing the attachment of the diaper to an infant. A method is provided for forming the improved diaper featuring folding, slitting and refolding the portion thereof which is to define the pouch and wings.
    Type: Grant
    Filed: June 6, 1974
    Date of Patent: February 3, 1976
    Assignee: Colgate-Palmolive Company
    Inventor: Charles H. Schaar