Patents Assigned to Agence Nationale de Valorisation de la Recherche (ANVAR)
  • Patent number: 4334054
    Abstract: The polymer films of the invention contain reactive groups and are obtained from phenols of the formula ##STR1## in which R denotes an acyl group with 1 to 7 carbon atoms, a hydroxy, carboxy, alkoxycarbonyl, amino, alkylamino or phenylamino group, andn is an integer, which may be 0 in the case where R is an acyl group.The films are prepared by electrolytic polymerisation on metallic surfaces and can be used to graft various materials reacting therewith, as intermediate layers.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: June 8, 1982
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Jacques E. Dubois, Minh-Chau Pham, Pierre C. Lacaze
  • Patent number: 4329241
    Abstract: New ferrofluids.They consist essentially of an aqueous sol of polyoxyanions of Fe(III) and at least one metal of oxidation degree II from the first series of transition metals, with an associated cation, notably selected from H.sup.+,N (CH.sub.3).sub.4.sup.+ and N(C.sub.2 H.sub.5).sub.4.sup.+.Application for example for obtaining levitation or self-sustentation systems, as well as for forming contactors or rotating paths.
    Type: Grant
    Filed: July 10, 1980
    Date of Patent: May 11, 1982
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventor: Rene Massart
  • Patent number: 4328318
    Abstract: Glasses containing fluorine. These glasses are characterized by the fact that they contain at least 25% in moles, approximately, of a fluoride or a mixture of fluorides MX(X.sub.1).sub.2, in which:X and X.sub.1 each represent a fluorine atom,and M then represents a metal chosen from among the group consisting ofgallium, iron, chromium, vanadium, indium, and the rare earths,or X represents an oxygen atom,X.sub.1 represents a fluorine atom,and M then represents a titanium atom, it being understood that the said glasses contain no hydrofluoric acid as a network former and that, in the case in which M represents a gallium or indium atom, the glasses do not contain more than 15% in moles of BaPO.sub.3 F.Application notably in obtaining glasses containing various cations conferring particular optical or magneto-optical properties.
    Type: Grant
    Filed: March 20, 1980
    Date of Patent: May 4, 1982
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Jean-Pierre Miranday, Charles Jacoboni, Robert de Pape
  • Patent number: 4320973
    Abstract: A highly luminous device for interferential spectrometry, comprises a birefringent beam-splitting interferometer combined with an optical system supplying localized fringes. As the beam-splitter element, it has at least one birefringent prism mounted along the optical axis of the device and producing an angular splitting, such as a Wollaston prism, of materials suitable for the construction of such prisms and selected as a function of birefringence and transparent over a wide range of wave lengths. The beam-splitter is placed between a polarizer and an analyzer of variable orientation to obtain flux modulation.
    Type: Grant
    Filed: December 11, 1979
    Date of Patent: March 23, 1982
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Gerard Fortunato, Robert A. Marechal, Marc G. Y. Menetrier
  • Patent number: 4317773
    Abstract: The invention relates to new chemical compounds corresponding to the followings formula ##STR1## in which R is a non-hydrolyzable radical and Az represents aziridinyl ##STR2## These compounds may be used as medicaments.
    Type: Grant
    Filed: June 25, 1980
    Date of Patent: March 2, 1982
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Jean-Francois Labarre, Francois Sournies, Johan C. van de Grampel, Andriaan A. van der Huizen
  • Patent number: 4316796
    Abstract: Dienic and/or aromatic hydrocarbons are separated from hydrocarbon fractions employing known liquid-liquid extraction and/or extractive distillation procedures and at least one sulfonamide solvent conforming to the general formula ##STR1## wherein R', R" and 4'" can be linear or branched, saturated or unsaturated, aliphatic groups possessing from 1 to 18 carbon atoms, wherein two or three of groups R', R" and R'" can be identical, wherein one of the groups R" and R'" can be replaced with a hydrogen atom, and wherein at least one of groups R', R" and R'" is unsaturated.
    Type: Grant
    Filed: September 12, 1980
    Date of Patent: February 23, 1982
    Assignees: Compagnie Francaise de Raffinage, Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Martial Atlani, Roben Loutaty, Claude Wakselman, Charles Yacono
  • Patent number: 4316383
    Abstract: Apparatus for determining rheological parameters of viscoelastic fluids is provided. The apparatus comprises two similar cylinder-piston assemblies ending at identical flow orifices. The pistons are pushed conjointly by a motor at an adjusted speed. A differential manometer is arranged between the cylinders immediately upstream of the orifices. One of the cylinders contains fluid to be studied and the other a Newtonian comparison fluid. The strain rates of the fluids are defined by the adjusted flow rates, and the pressure differential expresses elongation stress of the viscoelastic fluid. This apparatus is applicable in the rheological study of dilute solutions of macromolecular compositions.
    Type: Grant
    Filed: January 14, 1980
    Date of Patent: February 23, 1982
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Daniel Fruman, Marshall Tulin
  • Patent number: 4314462
    Abstract: A tube of flexible material moving longitudinally undergoes transition between annular cross section and flattened straight cross section, without change in the length of perimeter of its cross sections, by one stage of changing between the annular cross section and a rectangular cross section, and another stage of changing between that rectangular cross section and the flattened cross section through successively longer and narrower rectangular cross sections. The method is applicable to material produced by a circular knitting machine. Preferably there is a polyhedral guide within the tube.
    Type: Grant
    Filed: January 25, 1979
    Date of Patent: February 9, 1982
    Assignees: Institut Textile de France, Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Jean-Paul Ducol, Jacques Mesny, Julien Warret
  • Patent number: 4313822
    Abstract: The method consists of subjecting said muds to a particle size grading to concentrate the lead and zinc contained notably in the fines, and recovering said fraction containing the lead and the zinc, the other fraction being recyclable to the blast furnaces. The invention is useful in the preparation of feed materials for Waelz-Berzelius furnaces.
    Type: Grant
    Filed: July 24, 1980
    Date of Patent: February 2, 1982
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Jean M. Cases, Georges Valence, Olivier Lietard
  • Patent number: 4314076
    Abstract: The invention relates to new chemical compounds.The compounds according to the invention are compounds of the following formula ##STR1## in which one of the substituents A and B is hydrogen and the other is the radical --N.dbd.O.These compounds are suitable for use as medicaments.
    Type: Grant
    Filed: June 17, 1980
    Date of Patent: February 2, 1982
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Joel Oiry, Jean-Louis Imbach
  • Patent number: 4312592
    Abstract: For continuous measurement of the linear speed of relative travel of an object 11 in front of a measuring device 10 two fixed zones 21,22 in the path of the object are illuminated by means of two parallel laser beams emitted by a single source 15, images of the two zones illuminated are formed upon one and the same transducer 17 the output signal from which is processed electronically by autocorrelation in order to determine the time of travel of a point on the object in going from one illuminated zone to the other.
    Type: Grant
    Filed: February 28, 1980
    Date of Patent: January 26, 1982
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Jacques Sabater, Serge Bauduin
  • Patent number: 4311818
    Abstract: New organo-lithium initiators, their synthesis, and their use. The initiators have the formula: ##STR1## in which R" is either a hydrogen atom or a methyl radical; either n is 1, in which case R'=H and m and p are integers, the sum of which is between 0 and 10 inclusive, or n is 2, R' then being an alkyl radical of 2 to 8 carbon atoms and m=p=o; and R is an alkyl radical of 1 to 4 carbon atoms.The initiators are prepared by reacting compounds of the formula; ##STR2## with an alkyl-lithium RLi in a non-polar solvent in the absence of any polar solvent or complexing agent.The initiators are used to prepare polydienes of high stereoregularity by reacting with a diene, and the polydiene is used to prepare a three-block or star copolymer by reacting with an anionically polymerizable monomer.
    Type: Grant
    Filed: July 3, 1980
    Date of Patent: January 19, 1982
    Assignees: Societe Chimique des Charbonnages-Cdf. Chimie, Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Pierre Sigwalt, Patrick Guyot, Michel Fontanille
  • Patent number: 4311659
    Abstract: Organ prostheses are manufactured starting from a support preformed in the shape of the prosthesis to be formed on which a sol giving on cooling a gel enabling a surface state approximating to that of a liquid-air interface is deposited, a hardenable flexible material compatible with body tissues is deposited thereon and the prosthesis removed from the mould. Ureter, bladder, vascular and cardiac prostheses made by this method are disclosed.
    Type: Grant
    Filed: September 7, 1979
    Date of Patent: January 19, 1982
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Pierre Rey, Jacqueline Leandri, Clement Abbou
  • Patent number: 4311770
    Abstract: Process for making a novel ferromagnetic chromium dioxide and rhodium dioxide material in the form of a solid solution Cr.sub.1-x Rh.sub.x O.sub.2 where x is a number between 0 and 0.5.It essentially comprises oxidation, under suitable conditions of temperature and pressure, of hydrated or anhydrous Cr.sub.2 O.sub.3 or of a precursor of Cr.sub.2 O.sub.3, in the presence of (1) an appropriate amount of a compound of rhodium III able to give RhO.sub.2 under reaction conditions and (2) of an oxidizing agent consisting of an oxygenated compound free from metallic cations other than chromium and having, under the reaction conditions, a partial oxygen pressure at least equal to that corresponding, under the same conditions of temperature and pressure, to the equilibria Cr.sub.2 O.sub.3 +1/2O.sub.2 .revreaction.2CrO.sub.2 and Rh.sub.2 O.sub.3 +1/2O.sub.2 .revreaction.2RhO.sub.
    Type: Grant
    Filed: September 22, 1978
    Date of Patent: January 19, 1982
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Gerard Demazeau, Patrick Maestro, Theophile Plante, Michel Pouchard, Paul Hagenmuller
  • Patent number: 4310667
    Abstract: Derivatives of 9-hydroxy ellipticine, preparation thereof, and use thereof for the treatment of leukemias and solid tumors.
    Type: Grant
    Filed: September 15, 1978
    Date of Patent: January 12, 1982
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Jean-Bernard Le Pecq, Claude Paoletti
  • Patent number: 4307100
    Abstract: Compounds with antitumoral activity corresponding to the formula (I): ##STR1## wherein R'.sub.1 is a hydrogen atom or an alkoxy, acyl, formyl or haloacyl radical; R'.sub.2 is a hydrogen atom or an alkyl radical; R'.sub.3 and R".sub.3 are a hydrogen atom, hydroxyl radical or an alkanoyloxy radical, and together are a carbonyl group, and R'.sub.3 and R'.sub.5 together are an epoxy bridge or a double bond; R'.sub.4 is a hydrogen atom or an alkyloxycarbonyl, hydroxymethyl, alkanoyloxymethyl or acetamido radical; R'.sub.5 and R".sub.5 are a hydrogen atom or a hydroxyl, alkanoyloxyl, ethyl or 2-hydroxyethyl radical; R'.sub.6 is a hydrogen atom or an ethyl, 2-hydroxyethyl or acetyl radical; R.sub.1 is a hydrogen atom or an alkyl, formyl or acyl radical; R.sub.2 is a hydrogen atom or alkoxy radical; R.sub.3 is a hydrogen atom or a hydroxyl or alkanoyloxyl radical, and together with R.sub.4 is an epoxy bridge or a double bond; R.sub.4 is a hydrogen atom or a hydroxyl, alkanoyloxyl radical, and together with R.sub.
    Type: Grant
    Filed: August 20, 1979
    Date of Patent: December 22, 1981
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Nicole Langlois, Yves Langlois, Ratremaniaina Z. Andriamialisoa, Pierre Potieo, Pierre Mangeney
  • Patent number: 4305875
    Abstract: The invention provides a process for the preparation of leurosidine or vinblastine, which comprises hydroxylating and reducing .DELTA..sup.
    Type: Grant
    Filed: December 5, 1979
    Date of Patent: December 15, 1981
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Pierre Potier, Pierre Mangeney, Nicole Langlois, Yves Langlois
  • Patent number: 4303748
    Abstract: Invention concerning an electrochemical generator producing current, the electrolyte 2 of which is constituted by a solid solution of an alkali salt M.sup.+ X.sup.- within a plastic, macromolecular material, constituted by homo and/or copolymers essentially with non-cross-linked chains derived from one or several monomers comprising an heteroatom, notably oxygen or nitrogen. The negative electrode is constituted by a material liable to supply an alkali ion M.sup.+, and the positive electrode is liable to incorporate into itself the metal M corresponding to the ion M.sup.+.
    Type: Grant
    Filed: November 20, 1979
    Date of Patent: December 1, 1981
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Michel B. Armand, Michel Duclot
  • Patent number: 4300360
    Abstract: The invention provides a small-size hermetic refrigeration stage containing helium 3 and easily incorporated in a conventional helium 4 metal cryostat.The stage consists essentially of a metallic enclosure containing a certain volume of helium 3 and having a first receptacle constituting the pumping chamber and consisting a mass of an adsorbing body for the helium 3 at a very low temperature, a second receptacle constituting a condenser for the cooled helium 3 and a duct.The stage of the invention is particularly suited for maintaining the sensitive element of an infrared detector at a temperature of less than 1.degree. K.
    Type: Grant
    Filed: February 19, 1980
    Date of Patent: November 17, 1981
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Gerald Chanin, Jean-Pierre Torre
  • Patent number: 4301065
    Abstract: The invention is concerned with novel polypeptides and processes for the synthesis thereof.It is concerned with compounds having the sequenceX-Gln-Gly-Gly-Yin which Y represents -Ser-Asn and X represents Ser-, Lys-Ser-, Ala-Lys-Ser-, Glx-Ala-Lys-Ser-; Glx representing Pyro-Glu or Gln; and when X represents Glx-Ala-Lys-Ser-, Y may in addition represent -Ser; as well as their derivatives comprising one or two modified amino acids, with the exception of the unmodified compound PyroGlu-Ala-Lys-Ser-Gln-Gly-Ser-Asn.These polypeptides are useful as medicines.
    Type: Grant
    Filed: May 24, 1978
    Date of Patent: November 17, 1981
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Jean-Francois Bach, Mireille Dardenne, Jean-Marie Pleau, Jean Hamburger, Evanghelos Bricas, Jean Martinez, Didier Blanot, Genevieve Auger