Patents Assigned to Solvay & Cie
  • Patent number: 4874705
    Abstract: A genomic DNA molecule having the nucleic acid sequence set forth in FIG. 1 and encoding an antigenic protein derived from Eimeria tenella has been isolated. The protein has a molecular weight of about 25,000 daltons and is composed of two polypeptides joined by a disulfide bond. One of the polypeptides is characterized by a molecular weight of about 17,000 daltons and by a blocked N-terminal amino acid and having the amino acid sequence set forth in FIG. 1. The other polypeptide is characterized by a molecular weight of about 8,000 daltons and has the amino acid sequence set forth in FIG. 1.A cDNA molecule encoding the 25,000 dalton polypeptide with a continuous amino acid sequence has been inserted into expression vectors capable of expressing the 25,000 dalton polypeptide directly or as a fused polypeptide. The polypeptides produced are used in vaccines to immunize chickens against infection by Eimeria tenella.
    Type: Grant
    Filed: December 6, 1985
    Date of Patent: October 17, 1989
    Assignee: Solvay & Cie, S.A.
    Inventors: William H. Andrews, Virginia M. Brothers, James G. Files, Irene Kuhn, Michael T. McCaman, Leland S. Paul, Stacey R. Sias, Thomas C. Gore, Karel Z. Newman, Jr., John L. Tedesco
  • Patent number: 4861926
    Abstract: Stabilized 1,1,1-trichloroethane compositions containing an epoxide compound such as epoxybutane, a nitro compound such as nitromethane, a furan compound such as 2-methylfuran, and methyl acetate. These compositions are suitable for the degreasing of metals and for the dry cleaning of textiles in the presence of an aqueous phase.
    Type: Grant
    Filed: May 31, 1984
    Date of Patent: August 29, 1989
    Assignee: SOLVAY & Cie (Societe Anonyme)
    Inventor: Michel Servais
  • Patent number: 4857292
    Abstract: An aqueous sodium hypochlorite solution (3) is added, in a quantity which is deficient relative to that required to decompose the entire amount of calcium chloride, to an aqueous calcium chloride solution (2), the sodium chloride which precipitates (6) is separated and the remaining amount (9) of the sodium hypochlorite solution is then added to the resulting mother-liquor (7). Single FIGURE.
    Type: Grant
    Filed: December 11, 1987
    Date of Patent: August 15, 1989
    Assignee: SOLVAY & Cie (Societe Anonyme)
    Inventors: Jacques Brahm, Pierre Cornu, Pierre Garnier, Jean Verlaeten, Jacques Van Diest
  • Patent number: 4853207
    Abstract: Process for the manufacture of vitreous metal oxides in which a metal alcoholate derived from an alcohol, the pka of which is less than 15.74, is hydrolysed with an aqueous medium, the pH of which is greater than 1.5. The process is applied especially to the manufacture of vitreous zirconium oxide.
    Type: Grant
    Filed: February 19, 1987
    Date of Patent: August 1, 1989
    Assignee: Solvay & Cie (Societe)
    Inventors: Henri Wautier, Franz Legrand, Luc Lerot
  • Patent number: 4849561
    Abstract: The liquid phase dehydrochlorination of haloalkanes is performed with an initiator mainly comprising decachlorobutane and/or octachloro-1-butene.The process is applicable, in particular, to the production of chloroethylenes from the corresponding polychloroethanes.
    Type: Grant
    Filed: February 18, 1987
    Date of Patent: July 18, 1989
    Assignee: Solvay & Cie (Societe Anonyme)
    Inventor: James Franklin
  • Patent number: 4830993
    Abstract: Process for the manufacture of a metal oxide powder for ceramic materials by the hydrolysis of a metal alcoholate in the presence of an acidic organic compound.The process applies to the production of metal oxide powders, such as zirconia powders, with a mean particle diameter of between 0.05 and 2 microns.
    Type: Grant
    Filed: January 6, 1987
    Date of Patent: May 16, 1989
    Assignee: Solvay & Cie (Societe Anonyme)
    Inventors: Franz Legrand, Patricia Van den Bossche-De Bruycker, Luc Lerot
  • Patent number: 4829110
    Abstract: Stabilized compositions based on alpha-olefin polymers stabilized against degradation by oxidizing liquids, based on polymers of alpha-olefins such as propylene, containing a phenolic antioxidant, a phosphonite and a sulphur-containing stabilizer chosen from the esters derived from aliphatic polyols and alkylthiodipropionic acids and from combinations of a metal sulfide with one of these esters or with an organic polysulfide and optionally also containing an organic phosphite and an anti-acid agent. These compositions exhibit outstanding resistance to the phenomenon of oxidative degradation produced particularly by the contact with hot washing products of all kinds.
    Type: Grant
    Filed: November 18, 1986
    Date of Patent: May 9, 1989
    Assignee: Solvay & Cie (Societe Anonyme)
    Inventors: Roger Van Asbroeck, Serge Blanc
  • Patent number: 4826934
    Abstract: In a first stage, a heterocyclic oxygen compound is polymerized by an ionic route in a vinyl halide and, in a second stage, the vinyl halide, to which other unsaturated monomers capable of being polymerized by a radical route may be added if desired, is polymerized by a radical route in aqueous dispersion and in the presence of the polymerization mixture originating from the first stage.
    Type: Grant
    Filed: September 15, 1987
    Date of Patent: May 2, 1989
    Assignee: Solvay & Cie (Societe Anonyme)
    Inventors: Pierre Malfroid, Qui L. Nguyen, Jean-Marie Blondin
  • Patent number: 4806622
    Abstract: Polyacetal obtained by the polymerization of trioxane, for example, suspended in an organic solvent, in the presence of a comonomer (for example, ethylene oxide), is stabilized by hydrolysis in the heated state under pressure and then, after hydrolysis, the reaction mixture is depressurized to atmospheric pressure in order to release an aqueous phase containing the polymer and a vapor phase which contains formaldehyde and trioxane. According to the invention, the latter is recycled directly into the formaldehyde trimerization stage under reduced pressure.
    Type: Grant
    Filed: June 5, 1987
    Date of Patent: February 21, 1989
    Assignee: Solvay & Cie (Societe Anonyme)
    Inventor: Nicolas Hardy
  • Patent number: 4801744
    Abstract: Process for the catalytic synthesis of nitrogen-containing organic compounds, comprising the reaction of carbon monoxide with at least one amino compound in a reaction mixture containing a catalyst based on selenium and a substituted pyridine. The process is particularly suitable for the synthesis of ureas and of their polymers.
    Type: Grant
    Filed: February 28, 1986
    Date of Patent: January 31, 1989
    Assignee: Solvay & Cie (Societe Anonyme)
    Inventors: Jean-Jacques Herman, Andre Lecloux
  • Patent number: 4800008
    Abstract: The electrolyser comprises vertical electrodes (8, 9) and a stack of vertical frames (1, 2) made of a flexible material, deployed freely over the periphery of the electrodes and elastically deformed by compression one against another between two end flanges (3, 4).The invention applies to membrane electrolysers for the electrolysis of aqueous sodium chloride solutions.
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: January 24, 1989
    Assignee: Solvay & Cie.
    Inventors: Jean-Paul Detournay, Emile Cabaraux
  • Patent number: 4797981
    Abstract: Process for the production of salt in which sodium chloride is crystallized in the form of spheres by evaporation of a sodium chloride brine and the spheres obtained are then broken up. The salt produced by the process is particularly suitable for the food industry.
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: January 17, 1989
    Assignee: Solvay & Cie (Societe Anonyme)
    Inventors: Leon Ninane, Claude Breton
  • Patent number: 4798710
    Abstract: A metal alcoholate is treated with a quantity of water such that the molar ratio of the quantity of water to the quantity of metal alcoholate is lower than the valency of the metal in the alcoholate.
    Type: Grant
    Filed: September 15, 1987
    Date of Patent: January 17, 1989
    Assignee: Solvay & Cie (Societe Anonyme)
    Inventors: Franz Legrand, Patricia De Bruycker
  • Patent number: 4795837
    Abstract: A stabilized composition of 1,1,1-trichloroethane comprising an epoxide compound, a nitro compound, and a furan compound.
    Type: Grant
    Filed: March 6, 1984
    Date of Patent: January 3, 1989
    Assignee: Solvay & Cie (Societe Anonyme)
    Inventors: Michel Servais, Roger Crochet
  • Patent number: 4786662
    Abstract: Storage-stabilized compositions based on vinylidene fluoride polymers containing a metal molybdate and, as stabilizer, an effective quantity of alkali metal or alkaline-earth metal carbonate.The compositions are most particularly suitable for the manufacture of shaped objects employed in building and in aeronautics.
    Type: Grant
    Filed: December 3, 1987
    Date of Patent: November 22, 1988
    Assignee: Solvay & Cie
    Inventors: Jean-Marie De Berraly, Anthony Simoens
  • Patent number: 4783560
    Abstract: Stabilized compositions of 1,1,1-trichloroethane containing a mixture of two dialkoxyalkanes such as dimethoxymethane and 1,2-dimethoxyethane and at least one acid acceptor such as epoxybutane, and, if appropriate, a nitrated derivative such as nitromethane.These compositions are well suited for degreasing metals and in the drycleaning of textiles.
    Type: Grant
    Filed: July 24, 1986
    Date of Patent: November 8, 1988
    Assignee: Solvay & Cie (Societe Anonyme)
    Inventors: Michel Servais, Jean Verbeyst
  • Patent number: 4781573
    Abstract: The tubular preform is injection moulded in an injection mould whose initially axially reduced injection cavity is progressively enlarged in the direction of the axis of the preform in step with its filling by the injected thermoplastic until a moulding cavity is obtained which corresponds to the volume and to the shape of the preform to be produced. To this end, the injection mould comprises external die-halves and a central core, which can be moved in relation to each other in the direction of their common lengthwise axis during the injection moulding cycle.
    Type: Grant
    Filed: February 20, 1987
    Date of Patent: November 1, 1988
    Assignee: Solvay & Cie (Societe Anonyme)
    Inventor: Michel Depreter
  • Patent number: 4774146
    Abstract: The flexible thermoplastic structures comprise a vinylidene chloride copolymer layer bonded to a plasticized vinyl chloride polymer layer through the intermediacy of a mixture of polymeric adhesives consisting of 10 to 90 parts by weight of a copolymer of vinyl acetate and ethylene and of 90 to 10 parts by weight of a copolymer of vinyl chloride and vinyl acetate and whose shear elastic modulus G' at 121.degree. C. and 10.sup.-4 cycles/second is greater than 0.5 10.sup.3 Pa.The flexible thermoplastic structures with coextruded polymeric layers may be in the form of films, sheets, tetra-packs or flexible pouches capable of being employed in the packaging field.
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: September 27, 1988
    Assignee: Solvay & CIE
    Inventors: Claude Dehennau, Jean Demey
  • Patent number: 4772662
    Abstract: Process for manufacturing oxymethylene copolymers stabilized against thermal degradation, comprising the heating of the copolymer in a medium containing water and a disubstituted cellulose ether.
    Type: Grant
    Filed: August 26, 1986
    Date of Patent: September 20, 1988
    Assignee: Solvay & Cie. (Societe Anonyme)
    Inventors: Andre Collart, Fredy Declerck
  • Patent number: 4771074
    Abstract: Pharmaceutical compositions containing a salt derived from 3-hydroxybutanoic acid, such as a sodium salt or alternatively a salt derived from an organic nitrogen base such as an amine; the amine can be an amino-acid of natural origin, such as arginine. The compositions according to the invention can be used for the prophylactic and curative treatment of cardiomyopathy of non-ischaemic and ischaemic origin.
    Type: Grant
    Filed: October 23, 1985
    Date of Patent: September 13, 1988
    Assignee: Solvay & Cie (Societe Anonyme)
    Inventors: Jacques Lammerant, Jaroslaw Kolanowski