Patents by Inventor Jean Dumoulin

Jean Dumoulin 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: 4052331
    Abstract: A surface active composition which comprises by weight:A. 45 to 90% of at least one n-alkyl monoether of a polyethylene glycol, containing 4 to 9 --CH.sub.2 CH.sub.2 O-- units, the n-alkyl radicals containing 5 to 15 carbon atoms,B. 5 to 35% of a sodium dialkylsulphosuccinate, the linear or branched alkyl radicals containing 6 to 12 carbon atoms,C. 2 to 17% of at least one acid selected from oleic, linoleic, linolenic and ricinoleic acid andD. 1.5 to 12% of at least one amine selected from triethanolamine and N-hydroxyethylmorpholine;Is used as an emulsifier with diorganopolysiloxanes to form transparent micro-emulsions or transparent gels or to introduce silane cross-linking agents into catalyzed aqueous polysiloxane emulsions to cross-link the emulsion.
    Type: Grant
    Filed: April 13, 1976
    Date of Patent: October 4, 1977
    Assignee: Rhone-Poulenc S.A.
    Inventor: Jean Dumoulin
  • Patent number: 4028298
    Abstract: Storage-stable organosilicon compositions are provided which are characterized in that, apart from 100 parts by weight of a diorganopolysiloxane polymer mixture and 1 to 15 parts by weight of an organohydrogenopolysiloxane polymer,they contain 0.001 to 0.1 part by weight of platinum in the form of a complex of the formula: ##STR1## in which the symbols R and R', which may be identical or differen, each represents a monovalent hydrocarbon radical having from 1 to 8 carbon atoms, or two of these radicals, together with the nitrogen atom to which they are attached, form a monovalent heterocyclic radical.
    Type: Grant
    Filed: August 29, 1975
    Date of Patent: June 7, 1977
    Assignee: Rhone-Poulenc Industries
    Inventors: Jean Dumoulin, Parasko Nicou
  • Patent number: 4018734
    Abstract: Organosilicon compositions which impart good and immediate non-stick properties to cellulosic and synthetic materials are provided comprising a mixture of dimethylpolysiloxane polymer, a catalyst, an epoxy silane, a crosslinking system and organic solvent, the crosslinking system comprising 70 to 95% of at least one organosilicon compound possessing at least 3 acyloxy groups bonded to one or more silicon atoms, which is a silane of the formula RSi(OCOR").sub.3, a disilane, a disiloxane or a disilylalkane of the formula (R"COO).sub.3.sub.-d.sub.' R.sub.d.sub.' Si(X).sub.f SiR.sub.d (OCOR").sub.3.sub.-d, in which R and R" are as defined above, X represents an oxygen atom or the alkylene radical --(CH.sub.2).sub.h --, each of d and d', which may be identical or different, represents zero, 1 or 2, the sum d + d' being 2 or 3, f represents zero or 1 and h represents 2 or 4, and 2) 5 to 30% of at least one hexaalkoxymethylmelamine, the alkoxy groups each having 1 to 4 carbon atoms.
    Type: Grant
    Filed: June 6, 1975
    Date of Patent: April 19, 1977
    Assignee: Rhone-Poulenc Industries
    Inventor: Jean Dumoulin
  • Patent number: 3975294
    Abstract: A surface active composition comprises by weight:A. 45 to 90% of at least one n-alkyl monoether of a polyethylene glycol, containing 4 to 9 --CH.sub.2 CH.sub.2 O-- units, the n-alkyl radicals containing 5 to 15 carbon atoms,B. 5 to 35% of a sodium dialkylsulphosuccinate, the linear or branched alkyl radicals containing 6 to 12 carbon atoms,C. 2 to 17% of at least one acid selected from oleic, linoleic, linolenic and ricinoleic acid andD. 1.5 to 12% of at least one amine selected from triethanolamine and N-hydroxyethylmorpholine.The composition may be used as an emulsifier with diorganopolysiloxanes to form transparent micro-emulsions or transparent gels or to introduce silane cross-linking agents into catalyzed aqueous polysiloxane emulsions to cross-link the emulsion.
    Type: Grant
    Filed: November 2, 1973
    Date of Patent: August 17, 1976
    Assignee: Rhone-Poulenc S.A.
    Inventor: Jean Dumoulin
  • Patent number: 3936578
    Abstract: Sheets or films are rendered non-stick towards tacky substances by applying a coating composition containing specified quantities of (a) an .alpha.,.omega.-dihydroxydimethylpolysiloxane polymer, with a viscosity of at least 25,000 cPo at 25.degree.C, containing at most 0.1% by weight of hydroxyl groups, (b) a dimethylpolysiloxane rubber terminated at each end of its chain by a unit of the formula (CH.sub.3).sub.3 SiO.sub.0.5 or (CH.sub.3).sub.2 CH.sub.2 =CHSiO.sub.0.5, with a viscosity of at least 1 million cPo at 25.degree.C, (c) a crosslinking agent of the general formula (Q).sub.4.sub.-n Si[(OCH.sub.2 CH.sub.2).sub.p OQ'].sub.
    Type: Grant
    Filed: December 7, 1973
    Date of Patent: February 3, 1976
    Assignee: Rhone-Poulenc S.A.
    Inventors: Jean Dumoulin, Louis Linguenheld