Patents Assigned to Rhone-Poulenc Inc.
  • Newtonian drift control agents
    Patent number: 5705173
    Abstract: Aerial spray or discharge drift is controlled in aqueous compositions via the use of selected non-visco-elastic amounts of guar, one or more derivatives of guar, or combinations thereof.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: January 6, 1998
    Assignee: Rhone-Poulenc Inc.
    Inventor: James Lyle Hazen
  • Methods of attracting and combatting insects
    Patent number: 5700460
    Abstract: A method for attracting and controlling insects comprising offering to said insects for ingestion an effective amount of a compound of the formula: ##STR1## wherein the structural variables are as defined in the specification.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: December 23, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventors: Thomas Charles Davidson, Georgina M. Werner
  • Process for treating red meat, poultry and seafood to control bacterial contamination and/or growth
    Patent number: 5700507
    Abstract: A process for treating animals and/or seafood comprising the step of contacting the animal and/or seafood with a treatment solution containing trialkali metal orthophosphate at a temperature of between about 90.degree. F. and about 200.degree. F. for a time period effective to remove, reduce or retard bacterial contamination without significantly depreciating the organoleptic properties of the animal and/or seafood is provided.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: December 23, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventors: Fredric G. Bender, Charles Mostoller, Evelyn Marie Frankovich
  • Carboxyalkyl substituted polygalactomannan fracturing fluids
    Patent number: 5697444
    Abstract: A novel fracturing fluid composition comprising:(1) a carboxyalkyl derivatized polygalactomannan having a degree of substitution of between about 0.01 and about 3.0;(2) a zirconium salt crosslinking agent;(3) one or more thermal stabilizing agents;(4) one or more pH buffers; and(5) water;wherein said fluid is capable of maintaining at least 10 percent of its original cross-linked viscosity after three hours at a temperature greater to or equal to 250.degree. F. is provided.
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: December 16, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventors: Ralph Moorhouse, Ian William Cottrell
  • Protection of corn
    Patent number: 5696144
    Abstract: Method of control of corn borers attacking or susceptible or expected to attack corn plants whereby an effective amount of a 1-aryl pyrazole insecticidally active ingredient is applied near the corn sown seed.Method of protection of corn plants against European corn borer, whereby an effective amount of a 1-aryl pyrazole insecticidally active ingredient is applied near the corn sown seed.
    Type: Grant
    Filed: May 1, 1995
    Date of Patent: December 9, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventors: Reed Nathan Royalty, Michael Thomas Pilato, Nicholas Mark Hamon, Vernon L. Miles
  • Pesticidal 1-arylpyrazole-3-carboximidothoic acid esters
    Patent number: 5691333
    Abstract: 1-(Substituted phenyl)-3-(thioimidate)pyrazoles having systemic activity, arthropodicidal (especially insecticidal) and nematocidal compositions comprising same and methods for controlling arthropods (especially insects) and nematodes.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: November 25, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventors: Tai-Teh Wu, Michael Thomas Pilato
  • Fuel additive metering system
    Patent number: 5685334
    Abstract: A fuel additive system is disclosed which comprises a sensing device for determining the flow rate of fuel into the system and for generating a signal in dependence upon the fuel flow rate, a control system for conditioning the signal to produce a proportional speed of a variable speed motor, a metering pump driven by the motor for dispensing an additive into the fuel flow at a rate proportionate to the speed of the motor, and a valving device for controlling the rate of increase in the fuel flow rate to permit the control system and the metering pump to respond to the variations within an effective response time to substantially maintain a predetermined ratio between the fuel flow rate and the additive dispensing rate.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 11, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventor: William Hagan
  • Leavening acid composition produced by heating monocalcium phosphate at elevated temperatures
    Patent number: 5667836
    Abstract: A composition of matter comprising a monocalcium phosphate leavening acid having a neutralizing value of between about 44 and about 63 wherein the neutralizing value is the amount by weight of sodium bicarbonate needed to neutralize 100 parts by weight of said monocalcium phosphate leavening acid.
    Type: Grant
    Filed: May 17, 1996
    Date of Patent: September 16, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventor: Frank H. Y. Chung
  • Amphoteric surfactants having multiple hydrophobic and hydrophilic groups
    Patent number: 5656586
    Abstract: According to the invention, an improved class of amphoteric surfactant having improved surfactant properties characterized as mild and environmentally safe has been provided comprising compounds of the formula: ##STR1## The amphoteric surfactant of the subject invention have at least two hydrophobic moieties and at least two hydrophilic groups per molecule and are useful as emulsifiers, detergents, dispersants and solubilizing agents.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: August 12, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventors: Ji Li, Manilal Dahanayake, Robert Lee Reierson, David James Tracy
  • Process for removing inks from waste paper
    Patent number: 5651861
    Abstract: A process for removing oil-based inks and/or waterborne inks under slightly acidic, neutral or alkaline conditions by using either a flotation technique and/or a washing technique by using a novel deinking agent having a quarternized nitrogen group is provided.
    Type: Grant
    Filed: December 18, 1995
    Date of Patent: July 29, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventors: Eric Heath Larson, Marie Odile Lafon
  • Modified polygalactomannans as oil field shale inhibitors
    Patent number: 5646093
    Abstract: Polygalactomannans containing a hydrophilic substituent and a hydrophobic substituent are useful as oil shale inhibitor compositions in oil well drilling fluids.
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: July 8, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventor: David Joseph Dino
  • Quaternary cationic surfactants having multiple hydrophobic and hydrophilic groups
    Patent number: 5643498
    Abstract: According to the invention, an improved class of quaternary cationic surfactants having two imidazolinium groups have been provided comprising compounds of the formula: ##STR1## The surfactants of the subject invention have two hydrophobic moieties and two hydrophilic groups per molecule and are useful as hair and fabric conditioners as well as biocidal agents.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: July 1, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventors: Ji Li, Manilal Dahanayake, Robert Lee Reierson, David James Tracy
  • Anionic surfactants having multiple hydrophobic and hydrophilic groups
    Patent number: 5643864
    Abstract: According to the invention, an improved class of anionic surfactants having improved surfactant properties characterized as mild and environmentally safe have been provided comprising compounds of the formula: ##STR1## The anionic surfactants of the invention have at least two hydrophobic chains and at least two hydrophilic groups per molecule and are useful as emulsifiers, detergents, dispersant and solubilizing agents.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: July 1, 1997
    Assignee: Rhone-Poulenc, Inc.
    Inventors: Ji Li, Manilal Dahanayake, Robert Lee Reierson, David James Tracy
  • Pesticidal 1-arylpyrazoles
    Patent number: 5637607
    Abstract: Compounds of the formula 1-(4-SF.sub.5 2-R.sup.2 6-R.sup.6 phenyl) 3-CN 4-S(O).sub.n R.sup.4 5-N(R.sup.1)(R.sup.3) pyrazole, pesticidal compositions comprising them and related methods of controlling pests are disclosed.
    Type: Grant
    Filed: July 31, 1996
    Date of Patent: June 10, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventors: Michael T. Pilato, Tai-Teh Wu
  • Process for treating red meat, poultry or seafood to control bacterial contamination and/or growth
    Patent number: 5635231
    Abstract: A process for treating poultry, red meat or seafood comprising the step of contacting the poultry, red meat or seafood with:(1) a treatment solution comprising trialkali metal orthophosphate; and(2) steamfor a time period effective to remove, reduce or retard bacterial contamination without significantly depreciating the organoleptic properties of the animal and/or seafood is provided.
    Type: Grant
    Filed: March 19, 1996
    Date of Patent: June 3, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventors: Fredric G. Bender, Walter Frees
  • Fast hydrating dust-free xanthan gum
    Patent number: 5633028
    Abstract: A xanthan gum composition is prepared that is useful as a thickener and suspension agent in food and pharmaceutical applications. Comprised of xanthan gum and small amount of a food grade emulsifier, the composition is both shelf stable, dust-free and fast hydrating thereby providing a product that is easily assimilated into its end product uses with fewer steps and costs of manufacture.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: May 27, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventor: Philip Wong
  • Process for removing waterborne flexographic inks from substrates
    Patent number: 5632857
    Abstract: A process for removing water borne flexographic inks from paper stock comprising the steps of (a) forming a slurry by pulping paper containing water borne flexographic inks in an aqueous medium having a pH of greater than 8 which includes: (1) one or more basic agents; (2) one or more nonionic surfactants; (3) one or more anionic polyelectrolytes; and (4) an amount of paper different from that being processed which contains inorganic fillers, coatings or mixtures thereof; and (b) subjecting the slurry produced in step (a) to a flotation cell having an aqueous medium having a pH of greater than 8 which includes: (1) one or more basic agents; (2) one or more nonionic surfactants; and (3) one or more anionic polyelectrolytes is provided.
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: May 27, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventor: Eric H. Larson
  • Process for the preparation of pesticidal 1-(haloaryl) heterocyclic compounds
    Patent number: 5631381
    Abstract: Process for preparing complex pesticidal 1-(haloaryl)heterocyclic compounds by reacting 1-(nitroaryl)heterocycles with metallic halide salts.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: May 20, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventors: Jamin Huang, Scot K. Huber, Philip H. G. Smith, John H. Wilkinson
  • Pesticidal 1-arylpyrazole-3-carboximidothioic acid esters
    Patent number: 5629335
    Abstract: 1-(Substituted phenyl)-3-(thioimidate)pyrazoles having systemic activity, arthropodicidal (especially insecticidal) and nematocidal compositions comprising same and methods for controlling arthropods (especially insects) and nematodes.
    Type: Grant
    Filed: January 30, 1996
    Date of Patent: May 13, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventors: David T. Manning, Tai-Teh Wu, Michael T. Pilato
  • Method of combatting insect eggs and ovicidal compositions
    Patent number: 5616336
    Abstract: A method of protecting a crop by killing eggs of insects, or insects at the egg stage, the insects being detrimental to the crop, said method comprising applying to a locus where the eggs of insects are located or are expected to be located or are expected to be going to be located an effective amount of a compound of formula (I), or a salt thereof,R1--X--N(R2)--C(R3).dbd.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: April 1, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventor: Hafez M. Ayad