Patents Assigned to Solvay & Cie
  • Process for the treatment of heavy products resulting from the manufacture of chlorohydrocarbons
    Patent number: 4362602
    Abstract: A process for the treatment of heavy products resulting from the manufacture of light hydrocarbons. The heavy products are subjected to steam distillation in the presence of a water-soluble surface-active agent.
    Type: Grant
    Filed: July 14, 1981
    Date of Patent: December 7, 1982
    Assignee: Solvay & Cie.
    Inventors: Roland Hembersin, Remy Nicaise
  • Laminated structure for furnishing, comprising at least one decorative layer combined with a support
    Patent number: 4356226
    Abstract: A laminated structure suitable for use for the interior decorating of buildings and for motor vehicle upholstery comprising at least one decorative layer of organic material, which is combined, by hot pressing, with a support consisting of a polyolefin sheet, in which the polyolefin sheet comprises from 10 to 90% by weight of cellulose fibres and from 90 to 10% by weight of a polyolefin which is modified by polar monomeric units derived from at least one monomer chosen from the group consisting of unsaturated carboxylic acids, the corresponding anhydrides and derivatives thereof.
    Type: Grant
    Filed: May 8, 1979
    Date of Patent: October 26, 1982
    Assignee: Solvay & Cie
    Inventors: Pierre Georlette, Rene Bouteille
  • Chlorobromodicarboxylic acids and processes for their manufacture and their use
    Patent number: 4352939
    Abstract: The invention relates to diacids resulting from tetrahydrophthalic acid (chlorendic acid).The diacids correspond to the formula ##STR1## in which R represents the radical ##STR2## or the radical ##STR3## They are prepared using an excess of chlorendic acid. They can be used as fireproofing additives for polymeric materials or as prepolymers for polycondensation reactions.
    Type: Grant
    Filed: August 26, 1980
    Date of Patent: October 5, 1982
    Assignee: Solvay & Cie. (Societe Anonyme)
    Inventor: Andre Paucot
  • Process for the reclamation of waste paper
    Patent number: 4347099
    Abstract: A process for the reclamation of waste paper in the presence of an aqueous alkaline solution comprises having the solution contain at least a carboxylated polymer.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: August 31, 1982
    Assignee: Solvay & Cie.
    Inventors: Jean De Ceuster, Paul Essemaeker
  • Process for the manufacture of aldonic acids by an enzymatic method
    Patent number: 4345031
    Abstract: A process for the preparation of an aldonic acid from the corresponding ose, comprising enzymatically oxidizing the ose in a reaction mixture containing oxygen. The molar ratio of oxygen to ose in the reaction mixture is greater than 0.1.
    Type: Grant
    Filed: January 15, 1980
    Date of Patent: August 17, 1982
    Assignee: Solvay & Cie.
    Inventor: Guillaume Coppens
  • Process for the manufacture of aqueous solutions of alkali metal hypochlorite
    Patent number: 4330521
    Abstract: The invention concerns a process and an apparatus for the manufacture of aqueous solutions of alkali metal hypochlorite.The apparatus comprises a reaction vessel in which chlorine is caused to react with a solution of alkali metal hydroxide and a control device adapted so as to regulate the relative weights of chlorine and alkali metal hydroxide for the reaction, as a function of the derivative, with respect to time, of the redox potential of the reaction, modulated by an instantaneous value of this potential.
    Type: Grant
    Filed: July 9, 1980
    Date of Patent: May 18, 1982
    Assignee: Solvay & Cie
    Inventor: Willy Glineur
  • Process for the production of oriented hollow bodies
    Patent number: 4317793
    Abstract: A process for producing molecularly oriented hollow bodies of thermoplastic material presenting an accurately dimensioned orifice collar, by blow molding a preform in a manner to produce the orifice collar in its definitive form and, after thermally conditioning the preform, finally blow molding the desired final hollow body while forming the lower molded part of the neck below the orifice collar. This process permits the production of oriented hollow bodies with which a closure member can form an effective seal, and which can therefore be used for packaging carbonated beverages.
    Type: Grant
    Filed: August 14, 1980
    Date of Patent: March 2, 1982
    Assignee: Solvay & Cie
    Inventors: Guy Hubert, Edmond Michel
  • Process for separating poly-.beta.-hydroxybutyrates from a biomass
    Patent number: 4310684
    Abstract: A process for separating poly-.beta.-hydroxybutyrates from a biomass by extraction using at least one liquid halogenated solvent selected from the group consisting of chloroethanes and chloropropanes.
    Type: Grant
    Filed: January 4, 1980
    Date of Patent: January 12, 1982
    Assignee: Solvay & Cie.
    Inventors: Noel Vanlautem, Jacques Gilain
  • Permeable diaphragm for an electrochemical cell
    Patent number: 4302303
    Abstract: The invention relates to a permeable diaphragm for an electrochemical cell.The diaphragm consists of a sheet of fibrous, organic polymeric material, obtained from a suspension of the said polymeric material in an organic liquid.The invention applies to permeable diaphragms for cells for the electrolysis of aqueous sodium chloride solutions.
    Type: Grant
    Filed: October 17, 1980
    Date of Patent: November 24, 1981
    Assignee: Solvay and Cie
    Inventors: Robert Guillaume, Jean-Pierre Pleska, Jean Indeherbergh
  • Polymerization of olefins
    Patent number: 4296223
    Abstract: The present invention comprises a catalyst system, catalyst complex, and a process for the polymerization and copolymerization of alpha-olefins in which the process is carried out in the presence of a catalyst system comprising an organic compound of a metal of Group Ib, IIa, IIIb, or IVb of the Periodic Table and a solid catalyst complex prepared by reacting a divalent metal halide, an organic oxygen compound of a metal of Group IVa, Va, or VIa of the Periodic Table, and an aluminum halide.
    Type: Grant
    Filed: October 8, 1980
    Date of Patent: October 20, 1981
    Assignee: Solvay & Cie
    Inventor: Eugene Berger
  • Catalyst composition for polymerization of olefins
    Patent number: 4292200
    Abstract: The present invention relates to the method of polymerizing olefinic monomers utilizing a solid catalyst composition comprising a solid catalytic complex and an activator, to the resultant high impact resistant polymers, to the method of making such catalytic complex, and to the catalytic complex; said catalytic complex comprising the reaction product of an organic oxygenated compound of a metal of groups Ia, IIa, IIb, IIIb, IVb, VIIa, and VIII of the Periodic Table, an organic oxygenated transition compound of a transition metal of groups IVa, Va, and VIa of the Periodic Table, and an aluminium halide.
    Type: Grant
    Filed: March 12, 1975
    Date of Patent: September 29, 1981
    Assignee: Solvay & Cie
    Inventors: Eugene Berger, Jean-Louis Derroitte
  • Device for drawing thermoplastic preforms during the blow molding thereof
    Patent number: 4284397
    Abstract: Device for the longitudinal drawing of thermoplastic preforms possessing a closed base and an open neck during the blow moulding of these preforms comprising a rod introduced in the preforms through their open neck and arranged so as to exert a controlled axial thrust on the base of the preforms in which the drawing rod is provided with slots and is actuated by a driving sleeve in which it can slide and with which it is rendered integral by means of retractable wedges housed in the slots and held in place by means of calibrated springs.
    Type: Grant
    Filed: August 23, 1979
    Date of Patent: August 18, 1981
    Assignee: Solvay & Cie. (Societe Anonyme)
    Inventor: Edmond Michel
  • Hollow body made of an oriented thermoplastic
    Patent number: 4276987
    Abstract: Hollow body made of an oriented thermoplastic, such as bottles, the base of which comprises a central part 4 in the form of an inset dome, which central part is joined to the side wall 2 by means of a peripheral arched moulding 3, in which hollow body the central part is provided with a plurality of hollow protuberances 6 which project outwards from the hollow body and are distributed around its longitudinal axis C-C', the protuberances 6 having the appearance of cones, the rounded vertices of which are separated from the longitudinal axis of the hollow body by a distance which is equal to at most 60% of the external diameter of the neck of the hollow body.
    Type: Grant
    Filed: January 18, 1980
    Date of Patent: July 7, 1981
    Assignee: Solvay & Cie
    Inventor: Edmond Michel
  • Stabilized compositions containing methylene chloride
    Patent number: 4263464
    Abstract: A methylene chloride composition is stabilized by hexamethylenetetramine, optionally mixed with one or more epoxides. The methylene chloride thus stabilized is very suitable for aerosol compositions containing large amounts of water.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: April 21, 1981
    Assignee: Solvay & Cie.
    Inventors: Marcel Godfroid, Roger Gerkens
  • Process for the polymerization of olefins and catalytic products
    Patent number: 4262105
    Abstract: This invention relates to the polymerization of .alpha.-olefins and to catalysts and cocatalysts for that purpose wherein the polymerization is carried out in the presence of a catalyst comprising an organometallic compound of a metal of Groups IA, IIA, IIB, IIIA, and IVA of the Periodic Table and a cocatalyst comprising the reaction product of a derivative of a transition metal of Groups IVB, VB, and VIB of the Periodic Table and a fluorinated reaction product having an atomic ratio of fluorine/divalent metal greater than 1, said fluorinated reaction product being formed by reacting a fluorinating agent with an oxygenated compound of a divalent metal at a temperature between about 150.degree. to 450.degree. C. for a time sufficient to form said reaction product. The invention also comprises the method of making the cocatalysts.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: April 14, 1981
    Assignee: Solvay & Cie
    Inventors: Andre Delbouille, Jean-Louis Derroitte
  • Method for the manufacture of crystals of sodium carbonate monohydrate
    Patent number: 4260594
    Abstract: Method for the manufacture of crystals of sodium carbonate monohydrate, comprises crystallizing sodium carbonate monohydrate from a carbonated aqueous liquor of sodium hydroxide above 35.degree. C. and separating the crystals of sodium carbonate monohydrate and a mother liquor. The sodium carbonate monohydrate is crystallized on crystalline seeds of sodium carbonate monohydrate obtained by evaporation, between 35.degree. and 107.5.degree. C., of a solution of sodium carbonate free from sodium hydroxide.
    Type: Grant
    Filed: March 24, 1978
    Date of Patent: April 7, 1981
    Assignee: Solvay & Cie.
    Inventors: Jean Verlaeten, Maurice Preumont
  • Particles based on polylactones derived from polyhydroxycarboxylic acids, and pulverulent compositions in which these particles are present
    Patent number: 4259203
    Abstract: Particles of polylactones derived from polyhydroxycarboxylic acids. The particles contain a bicarbonate derived from an alkali metal or from ammonium, and are useful in pulverulent compositions for washing, cleaning and bleaching.
    Type: Grant
    Filed: April 20, 1979
    Date of Patent: March 31, 1981
    Assignee: Solvay & Cie.
    Inventor: Robert Lorquet
  • Process and device for determining a chemical deicer on a road
    Patent number: 4259640
    Abstract: A process for determining a chemical deicer on a road comprising positioning a shell on the road, introducing a fixed amount of solvent for the deicer into the shell to form a layer of solution, and measuring an electrical parameter of the resulting layer of solution. A device for carrying out this process is also disclosed.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: March 31, 1981
    Assignee: Solvay & Cie.
    Inventors: Gaetan della Faille d'huysse, Jacques Clausse, Louis Boxus
  • Process for the polymerization of olefins
    Patent number: 4258159
    Abstract: A process for low temperature polymerization and copolymerization of alpha-olefins comprising conducting the polymerization in the presence of a catalytic system comprising an organic compound of a metal of Group IA, IIA, IIB, IIIA and IVA of the Periodic Table and a solid catalytic complex which is prepared by reacting a compound of a metal of Groups IVB, VB and VIB of the Periodic Table with a porous aluminum oxide on which a magnesium compound is deposited.
    Type: Grant
    Filed: December 4, 1975
    Date of Patent: March 24, 1981
    Assignee: Solvay & Cie
    Inventor: Charles Bienfait
  • Process and device for monitoring the change in the surface condition of a metal component in an installation containing an ionic phase
    Patent number: 4256542
    Abstract: The invention relates to a process and a device for monitoring the change in the surface condition of a metal component in an installation containing an ionic phase, by a modification of the working conditions in the installation, relative to standard working conditions. The equilibrium potential of the component in the ionic phase in the installatoin is applied to one electrode of an electrochemical measuring cell, the electrode and the cell respectively reproducing the metal component and the installation under standard working conditions, and the intensity of the resulting electric current in the measuring cell is measured. The invention applies, in particular, to the monitoring of the corrosion of the wall of a steel pipeline through which a sodium chloride brine passes.
    Type: Grant
    Filed: April 30, 1979
    Date of Patent: March 17, 1981
    Assignee: Solvay & Cie
    Inventors: Daniel Tytgat, Albert Degols, Francois Dujardin