Patents by Inventor Martine Cerf

Martine Cerf has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7135539
    Abstract: The present invention relates to novel novolac resins obtained by coupling at least one aromatic compound (A) comprising at least two hydroxyl groups and at least one aldehyde (B) in the presence of an acid catalyst and in the presence of water and/or an organic solvent, followed by a step of alkylating the coupling resin thus obtained with at least one unconjugated diene (C), preferably containing no indene. These novolac resins are advantageously used in vulcanized and crosslinked elastomeric compositions since their viscosity, which is lower than that of the resins of the prior art, allows them to be handled easily. They are also used as adhesion promoters for improving the adhesion of rubber to reinforcing materials such as organic fibres made in particular of rayon, polyesters, polyamides or aramids, and metal cords made of steel, in particular brass steel or galvanized steel.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: November 14, 2006
    Assignee: Schenectady International Inc.
    Inventors: Martine Cerf, Stéphane Fouquay, Isabelle Silberzan, Bonnie Stuck, Jean-Jacques Troslard
  • Patent number: 6825301
    Abstract: The invention concerns a water-in-oil polymer emulsion containing in an organic and continuous phase practically non-miscible in water, finely comminuted water soluble polymers or capable of being swollen in water, a water-in-oil emulsifying agent and optionally wetting agents. The invention also concerns a method for preparing said emulsion. More particularly, it concerns a method for invert emulsion in the presence of one or several initiators belonging a specific family of azacarboxylic acid esters.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: November 30, 2004
    Assignee: ATOFINA, Elf Atochem, S.A.
    Inventors: Martine Cerf, Karine Triballier, Françoise Benard
  • Publication number: 20040068069
    Abstract: The invention concerns a method for making acrylonitrile fibers. More particularly, it concerns a method for making acrylonitrile fibers characterized in that it is carried out in the presence of at least an azocarboxylic acid ester.
    Type: Application
    Filed: February 28, 2003
    Publication date: April 8, 2004
    Applicant: ATOFINA, S.A.
    Inventors: Martine Cerf, Damien Colombie, Tembou Denis N'Zudie
  • Publication number: 20040059039
    Abstract: The present invention relates to novel novolac resins obtained by coupling at least one aromatic compound (A) comprising at least two hydroxyl groups and at least one aldehyde (B) in the presence of an acid catalyst and in the presence of water and/or an organic solvent, followed by a step of alkylating the coupling resin thus obtained with at least one unconjugated diene (C), preferably containing no indene. These novolac resins are advantageously used in vulcanized and crosslinked elastomeric compositions since their viscosity, which is lower than that of the resins of the prior art, allows them to be handled easily. They are also used as adhesion promoters for improving the adhesion of rubber to reinforcing materials such as organic fibres made in particular of rayon, polyesters, polyamides or aramids, and metal cords made of steel, in particular brass steel or galvanized steel.
    Type: Application
    Filed: March 7, 2003
    Publication date: March 25, 2004
    Applicant: ATOFINA, S.A.
    Inventors: Martine Cerf, Stephane Fouquay, Isabelle Silberzan, Bonnie Stuck, Jean-Jacques Troslard
  • Patent number: 6642306
    Abstract: The invention concerns a method for preparing stable (co)polymer dispersions in a polyol by polymerising in situ a monomer or a mixture of ethylenically unsaturated monomers, in the presence of one or several azocarboxylic acid ester(s).
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: November 4, 2003
    Assignee: Atofina
    Inventors: Martine Cerf, Mieczyslaw Wnuk
  • Patent number: 6576342
    Abstract: Multilayered article including a functionalized and vulcanized elastomer adherent by itself to a thermoplastic chosen from polyamides, PBT, mixtures containing polyvinylidene fluoride and ethylene/vinyl alcohol and ethylene/tetrafluoroethylene copolymers. Composite tubular article made up of an outer sheath of vulcanized elastomer adherent to a hydrocarbon-barrier thermoplastic or associated with an inner layer for producing imperviousness.
    Type: Grant
    Filed: October 19, 1995
    Date of Patent: June 10, 2003
    Assignee: Elf Atochem S.A.
    Inventors: Martine Cerf, Olivier Denizart, Christian Dousson
  • Patent number: 6361730
    Abstract: The present invention relates to a process for forming composite shaped articles used for athletic shoe soles, tubes, pipes, transmission belts and conveyor belts, comprising a vulcanized elastomer directly or autogenously bonded, that is, essentially in the absence of adhesive, to a thermoplastic elastomer comprising recurring polyamide-6 and polyether structural units, such as thermoplastic polyetheresteramide elastomers, are provided. The article is prepared by a process comprising placing a thermoplastic elastomer component into a vulcanization mold, overmolding onto at least a portion of the surface area of one face surface of the thermoplastic elastomer component with a vulcanizable elastomer component, and vulcanizing the vulcanizable elastomer component at a temperature below the melting point of the thermoplastic elastomer component but over a wide temperature range, which can be about 40° C. or higher.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: March 26, 2002
    Assignee: Elf Atochem S.A.
    Inventors: Patrick Alex, Christian Dousson, Loic Tron, Martine Cerf
  • Patent number: 6242549
    Abstract: This composition, which is useful as a binder in the preparation of synthetic resin concretes or mortars, bonding primers or finishing coats, comprises (A) a system of monomers comprising: (a1) 50-90 parts of a dicyclopentenyloxyalkyl eater: where R=H or CH3; n=1 or 2; and R1=C2-C6 alkylene; (a2) 0-25 parts of at least one heavy (meth)acrylate giving a homopolymer with a Tg higher than that of a homopolymer of (a1); (a3) 0-25 parts of at least one heavy (meth)acrylate giving a homopolymer with a Tg lower than that of a homopolymer of (a1); (a4) 0-25 parts of at least one monomer containing at least two (meth)acrylic unsaturations; and (B) 5-30 parts of at least one poly(allyl glycidyl ether); and (C) an initiating system chosen from (C1) to (C4): (C1) 0.1-3 parts of at least one organic peroxide derived from a C3-C18 hydrocarbon compound and 0.1-2 parts of at least one aromatic amine; (C2) 0.
    Type: Grant
    Filed: April 15, 1996
    Date of Patent: June 5, 2001
    Assignee: Elf Atochem, S.A.
    Inventors: Didier Vanhoye, Martine Cerf, Yves Barbier, Mieczyslaw Wnuk
  • Patent number: 6217961
    Abstract: Composite including a rubber/thermoplastic blend adherent by itself to a thermoplastic material; the blend is in the form of a thermoplastic matrix containing rubber nodules functionalized and vulcanized during the mixing with the thermoplastic. Composite articles obtained by overmolding the vulcanized rubber/thermoplastic blend onto the thermoplastic.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: April 17, 2001
    Assignee: Altofina
    Inventors: Marius Hert, Patrick Alex, Martine Cerf, Christian Dousson
  • Patent number: 5985392
    Abstract: Composite including a rubber/thermoplastic blend adherent by itself to a thermoplastic material; the blend is in the form of a thermoplastic matrix containing rubber nodules functionalized and vulcanized during the mixing with the thermoplastic. Composite articles obtained by overmoulding the vulcanized rubber/thermoplastic blend onto the thermoplastic.
    Type: Grant
    Filed: January 2, 1997
    Date of Patent: November 16, 1999
    Assignee: Elf Atochem S.A.
    Inventors: Marius Hert, Patrick Alex, Martine Cerf, Christian Dousson
  • Patent number: 5760157
    Abstract: Compounds of the formula?P!(ACH.sub.2 NH.sub.2).sub.xin which P denotes a partially hydrogenated 1,3-diene oligomer residue, x is practically equal to 2 and A denotes a divalent residue such as ##STR1## are obtained by selective hydrogenation of compounds of formula ?P.sub.1 !(ACN)x in which P.sub.1 denotes a 1,3-diene oligomer residue.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: June 2, 1998
    Assignee: Elf Atochem, S.A.
    Inventors: Martine Cerf, Stephane Fouquay, Joel Perthuis
  • Patent number: 5663401
    Abstract: Compounds represented by the formulae (I) and (II) in which:R.sup.1 =H or CH.sub.3 ;X=O or S;R.sup.2 =C.sub.1-12 straight-chain or branched alkylene groups, monocyclic or polycyclic cycloalkylene and heterocycloalkylene groups, alkylarylene and arylalkylene groups;R.sup.6 =H or C.sub.1-12 alkyl and aryl radicals;R.sup.3 =C.sub.1-20 alkyl and aryl radicals, --(CH.sub.2).sub.p SR.sup.4 groups where p=integer from 2 to 12 and R.sup.4 =C.sub.1-20 alkyl, and ##STR1## where q is an integer from 2 to 12 and R.sup.5 =H or CH.sub.3.
    Type: Grant
    Filed: January 6, 1995
    Date of Patent: September 2, 1997
    Assignee: Atochem
    Inventors: Martine Cerf, Jean Luc Mieloszynski, Daniel Paquer
  • Patent number: 5637407
    Abstract: Composite including a rubber/thermoplastic blend adherent by itself to a thermoplastic material; the blend is in the form of a thermoplastic matrix containing rubber nodules functionalized and vulcanized during the mixing with the thermoplastic. Composite articles obtained by overmoulding the vulcanized rubber/thermoplastic blend onto the thermoplastic.
    Type: Grant
    Filed: November 10, 1994
    Date of Patent: June 10, 1997
    Assignee: Elf Atochem S. A.
    Inventors: Marius Hert, Patrick Alex, Martine Cerf, Christian Dousson
  • Patent number: 5412138
    Abstract: These acrylic and methacrylic compounds are chosen from those of the formula: ##STR1## in which R.sup.1 is H or CH.sub.3 ; A is (CH.sub.2).sub.n or n is an integer from 2 to 12 or --(CH.sub.2 CH.sub.2 O).sub.d --CH.sub.2 CH.sub.2 --, d is an integer from 1 to 20; X is S or O; Y is S or O, under the condition that X is S and Y is O when A is --(CH.sub.2 CH.sub.2 O).sub.d --CH.sub.2 CH.sub.2 --; R is C.sub.1 --C.sub.20 alkyl or --(CH.sub.2).sub.p SR.sup.3 where p is an integer from 3 to 12 and R.sup.3 is C.sub.1 -C.sub.20 -alkyl; m is an integer from 1 to 3; and Z is H, R.sup.2 QH, or R.sup.2 is C.sub.2 -C.sub.12 -alkyl and Q is O or S, and the atoms of the metals from Groups IA, IIA, IIIA, IB, IIB, VIB, VIIB and VIII of the Periodic Table, on condition that Z is H or R.sup.2 OH when m is 1 and m is the valence of Z when Z is a metal.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: May 2, 1995
    Assignee: Elf Atochem S.A.
    Inventors: Martine Cerf, Jean-Luc Mieloszynski, Daniel Paquer
  • Patent number: 5399733
    Abstract: Compounds represented by the formulae (I) and (II) in which:R.sup.1 =H or CH.sub.3 ;X=O or S;R.sup.2 =C.sub.1-12 straight-chain or branched alkylene groups, monocyclic or polycyclic cycloalkylene and heterocycloalkylene groups, alkylarylene and arylalkylene groups;R.sup.6 =H or C.sub.1-12 alkyl and aryl radicals;R.sup.3 =C.sub.1-20 alkyl and aryl radicals, --CH.sub.2).sub.p SR.sup.4 groups where p=integer from 2 to 12 and R.sup.4 =C.sub.1-20 alkyl, and ##STR1## where q is an integer from 2 to 12 and R.sup.5 =H or CH.sub.3.
    Type: Grant
    Filed: March 8, 1993
    Date of Patent: March 21, 1995
    Assignee: Atochem
    Inventors: Martine Cerf, Jean-Luc Mieloszynski, Daniel Paquer