Patents Assigned to Rhone-Poulenc Industries
  • Patent number: 4420582
    Abstract: High impact strength, improved bending modulus composites are comprised of a polymeric matrix, e.g., elastomer or synthetic polymer of polypropylene or polyamide type, said matrix having highly dispersed therein a reinforcing amount of relatively small synthetic zeolitic filler particulates, e.g., of types A, 4A and Na-P, and the mean size of the elementary particles thereof advantageously closely approximating those of the secondary particles.
    Type: Grant
    Filed: June 9, 1981
    Date of Patent: December 13, 1983
    Assignee: Rhone-Poulenc Industries
    Inventors: Pierre Canard, Bertrand Latourrette, Gilbert Schorsch
  • Patent number: 4419282
    Abstract: Scents and perfumed compositions include, as an odorant therefor, an olfactory affecting amount of N,N-dimethyloctanamide.
    Type: Grant
    Filed: September 15, 1981
    Date of Patent: December 6, 1983
    Assignee: Rhone-Poulenc Industries
    Inventor: Claude Breant
  • Patent number: 4419356
    Abstract: Thiazolo[3,2-a]pyrimidine derivative of the formula: ##STR1## wherein R represents phenyl, alkyl of 1 through 4 carbon atoms, alkyl of 1 through 4 carbon atoms substituted by 1 through 3 halogen atom, alkenyl of 2 through 4 carbon atoms, or cycloalkyl of 3 through 6 carbon atoms and R.sub.1 represents hydrogen, or R and R.sub.1 each represent phenyl or unsubstituted alkyl of 1 through 4 carbon atoms, or R and R.sub.1 together represent an alkylene radical of 4 or 5 carbon atoms, and R.sub.2 and R.sub.3 each represent hydrogen or unsubstituted alkyl of 1 through 4 carbon atoms, or R and R.sub.1 each represent hydrogen, and one of R.sub.2 and R.sub.3 represents hydrogen and the other represents unsubstituted alkyl of 1 through 4 carbon atoms, or R.sub.2 and R.sub.3 both represent unsubstituted alkyl of 1 through 4 carbon atoms, are new compounds possessing pharmacological properties. They are especially useful in the treatment of rheumatic disease or allergic states, or as analgesics.
    Type: Grant
    Filed: July 22, 1981
    Date of Patent: December 6, 1983
    Assignee: Rhone-Poulenc Industries
    Inventors: Francois Debarre, Jean-Louis Fabre, Daniel Farge, Claude James
  • Patent number: 4419281
    Abstract: Scents and perfumed compositions include, as an odorant therefor, an olfactory affecting amount of N,N-diethylheptanamide.
    Type: Grant
    Filed: September 15, 1981
    Date of Patent: December 6, 1983
    Assignee: Rhone-Poulenc Industries
    Inventor: Claude Breant
  • Patent number: 4418007
    Abstract: Mixed oxide active catalysts having the formula:A.sub.a Mo.sub.c W.sub.d B.sub.b O.sub.xwherein:A is at least one of the metals cobalt, nickel, manganese and/or lead;B is at least one of the metals iron, bismuth, chromium and/or thallium;a is the sum of the values indicating the amounts present of each of the metals A, and is a number ranging from greater than 0 to about 12;c and d are numbers each equal to or greater than 0 and ranging to 12, with the sum c+d being about 12;b is the sum of the values indicating the amounts present of each of the metals B, and is a number ranging from greater than 0 to about 1.
    Type: Grant
    Filed: October 9, 1981
    Date of Patent: November 29, 1983
    Assignee: Rhone-Poulenc Industries
    Inventor: Jean-Yves Derrien
  • Patent number: 4415735
    Abstract: The invention provides new cephalosporins of the general formula: ##STR1## in which n=0 or 1, R.sub.4 is an amine-protecting radical, R.sup.a.sub.5 and R.sup.b.sub.5, which are identical or different, are hydrogen atoms or alkyl radicals, or form an alkylene radical of 2 or 3 carbon atoms, R.sup.c.sub.5 is a hydrogen atom or an acid-protecting radical and R.sub.2 is an acid-protecting radical or a radical which can easily be removed by an enzymatic method. The compounds of formula (I) are in the form of a 3-oxoethyl-bicyclooct-2-ene or -bicyclooct-3-ene or a 3-oxoethylidenebicyclooctane if n=0, and in the form of a 3-oxoethylbicyclooct-2-ene or a 3-oxoethylidenebicyclooctane if n=1. They are useful as intermediates for the preparation of pharmaceutically active cephalosporins.
    Type: Grant
    Filed: November 19, 1981
    Date of Patent: November 15, 1983
    Assignee: Rhone-Poulenc Industries
    Inventors: Daniel Farge, Pierre L. Roy, Claude Moutonnier, Jean-Francois Peyronel
  • Patent number: 4415562
    Abstract: New cephalosporins of the general formula: ##STR1## in which R is alkyl, L-2-amino-2-carboxyethyl, phenyl or various heterocyclic rings, R' is a hydrogen atom or a radical of the general formula: ##STR2## and R.degree. is hydrogen, alkyl, vinyl, cyanomethyl or a carboxyalkyl radical of the general formula: ##STR3## and also their salts, their preparation and the pharmaceutical compositions in which they are present.
    Type: Grant
    Filed: November 19, 1981
    Date of Patent: November 15, 1983
    Assignee: Rhone-Poulenc Industries
    Inventors: Daniel Farge, Pierre L. Roy, Claude Moutonnier, Jean-Francois Peyronel
  • Patent number: 4415447
    Abstract: Separatory, e.g., ultrafiltration apparatus including a plurality of semi-permeable membranes and a plurality of ridge ribbed support members therefor, is provided with means for anchoring said membranes to and between successive supports.
    Type: Grant
    Filed: September 14, 1981
    Date of Patent: November 15, 1983
    Assignee: Rhone-Poulenc Industries
    Inventors: Jacques Foucras, Georges Rodet
  • Patent number: 4413107
    Abstract: Thermosetting compositions comprising an N,N'-diphenylene-bis-imide of an unsaturated carboxylic acid and at least one non-imido comonomer copolymerizable therewith, are storage-stabilized against recrystallization of the bis-imide therefrom, by formulating same in the presence of a recrystallization preventing amount of an N,N'-toluene-bis-maleimide.The resultant compositions are useful solventless casting resins; also as coating/impregnating compositions.
    Type: Grant
    Filed: February 6, 1981
    Date of Patent: November 1, 1983
    Assignee: Rhone-Poulenc Industries
    Inventor: Jean-Louis Locatelli
  • Patent number: 4412925
    Abstract: An aqueous composition is provided, suitable for direct use in waterflood oil recovery processes, which comprises the clarified fermentation fluid obtained by(a) culturing a polysaccharide-producing microorganism in an aqueous culture medium to produce an aqueous culture containing dissolved polysaccharide therein; and(b) clarifying the resultant aqueous culture from (a) by at least one of centrifugation and filtration, introducing therein at least one bactericidal agent, and recovering the resultant clarified fermentation fluid;said aqueous composition being obtained without precipitation and recovery of a solid polysaccharide and dissolution thereof in an aqueous medium.The above composition can be pumped into oil formations without substantial clogging thereof.
    Type: Grant
    Filed: June 29, 1978
    Date of Patent: November 1, 1983
    Assignees: Institut Francais du Petrole, Rhone-Poulenc Industries
    Inventors: Daniel Ballerini, Odile Chaude, Guy Chauveteau, Norbert Kohler, Jean-Paul Vandecastele
  • Patent number: 4410738
    Abstract: Meta-chlorophenols useful as intermediates in various organic syntheses are prepared by selectively catalytically hydrodechlorinating a polychlorophenol in liquid phase in an acid solvent medium which is at least partially aqueous, in the presence of a Group VIII noble metal catalyst and at least one Group 1b to 5a heavy metal, said polychlorophenol bearing chlorine substituents in both the meta- and ortho- and/or para-positions.
    Type: Grant
    Filed: December 21, 1981
    Date of Patent: October 18, 1983
    Assignee: Rhone-Poulenc Industries
    Inventor: Georges Cordier
  • Patent number: 4410739
    Abstract: Meta-chlorophenols useful as intermediates in various organic syntheses are prepared by selectively catalytically hydrodechlorinating a polychlorophenol in liquid organic phase and in the presence of a nobel metal catalyst and a Lewis acid, said polychlorophenol bearing chlorine substituents in both the meta- and ortho- and/or para-positions.
    Type: Grant
    Filed: December 21, 1981
    Date of Patent: October 18, 1983
    Assignee: Rhone-Poulenc Industries
    Inventor: Georges Cordier
  • Patent number: 4410737
    Abstract: Meta-chlorophenols useful as intermediates in various organic syntheses are prepared by selectively catalytically hydrodechlorinating a polychlorophenol in liquid phase in an acid solvent medium which is at least partially aqueous and which comprises halide ions, in the presence of a Group VIII noble metal catalyst, said polychlorophenol bearing chlorine substituents in both the meta- and ortho- and/or para-positions.
    Type: Grant
    Filed: December 21, 1981
    Date of Patent: October 18, 1983
    Assignee: Rhone-Poulenc Industries
    Inventor: Georges Cordier
  • Patent number: 4409356
    Abstract: Mechanically/thermally improved, filler reinforced organosilicic elastomers, e.g., organopolysiloxanes, are comprised of a reinforcing amount of precipitated silica particulates having the properties:______________________________________ (i) BET surface area 190 to 340 m.sup.2 /g (ii) CTAB surface area 180 to 280 m.sup.2 /g (iii) ##STR1## 0.9 to 1.2 (iv) Residual sodium content <500 ppm (v) pH 3.5 to 6.0 (vi) Specific volume V.sub.o >4.2 (vii) Amount of particles of <0.05% a size as will not pass through a 45.mu.
    Type: Grant
    Filed: December 19, 1980
    Date of Patent: October 11, 1983
    Assignee: Rhone-Poulenc Industries
    Inventors: Robert Lagarde, Georges Vrisakis
  • Patent number: 4408075
    Abstract: A process of preparing tris-(ether-amines) of the formula:N--[A--O--(B--O).sub.n --R].sub.3in which R represents a hydrocarbon radical, A and B represent alkanediyl radicals, and n is a whole number between zero and 4, by ammonolysis of an alkylene glycol mono-ether of the formula:HO--A--O--(B--O).sub.n --Rin the presence of 10 to 40 percent by weight of a hydrogenation-dehydrogenation catalyst, based on weight of said alkylene glycol monoether.The tris-(ether-amines) produced, such as tris-(3,6-dioxa-octyl)amine, tris-(3,6,9-trioxaundecyl)amine, tris-(3,6-dioxaheptyl)amine, and tris-(3,6-dioxadecyl)amine.
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: October 4, 1983
    Assignee: Rhone-Poulenc Industries
    Inventors: Gerard Soula, Louis Linguenheld
  • Patent number: 4407780
    Abstract: Uranium values are recovered from a wet-process phosphoric acid solution by extracting said solution with a first organic extractant, reductively stripping the resulting first organic phase of its uranium values with a strip solution including and in which ferrous ion is utilized to reduce uranyl ions in said first organic phase to uranous ions therein, disengaging the strip solution from said first organic extractant and oxidizing same to convert the uranous ions therein to uranyl ions, next extracting said oxidized strip solution and the uranium values contained therein with a second organic extractant, and then stripping said uranium values from the resulting second organic phase, said recovery featuring (i) washing with an iron-free aqueous wash solution, and upstream of the reductive stripping thereof, the organic phase resulting from said first extraction, and (ii) utilizing effluent, iron-free wash solution from the step (i) to wash the organic phase resulting from said second extraction and concomitan
    Type: Grant
    Filed: May 22, 1980
    Date of Patent: October 4, 1983
    Assignee: Rhone-Poulenc Industries
    Inventors: Dominique Foraison, Alain Leveque
  • Patent number: 4404073
    Abstract: High molecular weight water-soluble polymers essentially devoid of residual monomer content and well adapted for use as flocculating agents, are prepared by photopolymerizing a thin layer of a deoxygenated aqueous solution of an olefinically unsaturated monomer continuously deposited upon a travelling support substrate, said aqueous solution containing a photopolymerization photoinitiator and said photoinitiator comprising benzil dimethylacetal.
    Type: Grant
    Filed: September 3, 1981
    Date of Patent: September 13, 1983
    Assignee: Rhone-Poulenc Industries
    Inventors: Alain Bartissol, Jean Boutin, Francois Wachowski
  • Patent number: 4404174
    Abstract: Highly pure (>99.99%) aqueous solutions of gallium chloride are obtained by a process having two major stages. The first stage, effected by passage of an aqueous acid solution containing gallium over a strongly basic ion exchange resin, makes it possible to eliminate an appreciable quantity of metal ions, such as Ca, Mg, Cr, V, Co, Zn and Pb, and further serves to concentrate the initial solution. In the second stage, the remaining ions, such as Al, Na and particularly Fe.sup.+++ are eliminated by a two-phase extraction with an organic extractant, preferably a C.sub.4 to C.sub.10 alcohol or a quaternary ammonium chloride.
    Type: Grant
    Filed: November 30, 1981
    Date of Patent: September 13, 1983
    Assignee: Rhone-Poulenc Industries
    Inventors: Alain Leveque, Michel Triollier
  • Patent number: 4399135
    Abstract: New oxacephalosporins of the general formula (I), in which R is optionally N-oxidised pyridyl, pyrimidin-2-yl, substituted pyridazin-3-yl, 5,6-dioxo-1,4,5,6-tetrahydro-1,2,4-triazin-3-yl substituted in the 4-position, substituted 1-alkyl-1,3,4-triazol-5-yl or 1,2,4-triazol-5-yl, 5,6-dioxo-1,4,5,6-tetrahydro-1,2,4-triazin-3-yl substituted in the 1-position, 5,6-dioxo-1,4,5,6-tetrahydro-1,2,4-triazin-3-yl substituted in the 2-position, substituted or unsubstituted 2-alkyl-2,5-dihydro-5-oxo-1,2,4-triazin-3-yl, 1-amino-1,2-dihydro-2-oxo-pyrimidin-4-yl, substituted 1,3,4-thiadiazol-5-yl or tetrazol-5-yl substituted in the 1-position, R' is a substituted 2-(2-aminothiazol-4-yl)-acetyl radical or an .alpha.-carboxyarylacetyl radical and R" is a hydrogen atom or a methoxy radical in the 7.alpha.-position, and also their salts, their preparation and the medicaments in which they are present.
    Type: Grant
    Filed: November 19, 1981
    Date of Patent: August 16, 1983
    Assignee: Rhone-Poulenc Industries
    Inventors: Daniel Farge, Pierre L. Roy, Claude Moutonnier, Bernard Plau, Jean-Francois Peyronel
  • Patent number: 4399301
    Abstract: Methylenically-substituted undecadiene compounds having the structural formula: ##STR1## wherein X is selected from the group consisting of lower acyloxy, aryloxy having from 6 to 14 carbon atoms, lower alkoxy and hydroxy, and R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, R.sub.10, R.sub.11, R.sub.12, R.sub.13, R.sub.14, R.sub.15 and R.sub.16 are independently selected from the group consisting of hydrogen and lower alkyl, with the proviso that at least one of R.sub.3, R.sub.5 and R.sub.6 and at least one of R.sub.9, R.sub.10, R.sub.11 and R.sub.12 must be hydrogen, are prepared by reacting a diene having the structural formula: ##STR2## with a conjugated diene having the structural formula: ##STR3## in the presence of a rhodium/trivalent phosphorus catalyst, with the atomic ratio of the trivalent phosphorus to the rhodium therein being at least 1.5. The compounds can be hydrogenated and saponified to form known alcohols which are precursors for biodegradable detergents.
    Type: Grant
    Filed: September 13, 1979
    Date of Patent: August 16, 1983
    Assignee: Rhone-Poulenc Industries
    Inventor: Didier Morel