Patents by Inventor Didier Wilheim

Didier Wilheim 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).

  • Glycerol derivatives, their preparation process, cross-linking compositions containing them, and their use in the textile industry
    Patent number: 5093518
    Abstract: Glycerol derivatives of general formula (I)CH.sub.2 --ORCH--OR.sub.1 (I)CH.sub.2 --OR.sub.2in which R=allyl, methylallyl, acryloyl or methacryloyl, R.sub.1 =R.sub.2 =glyoxyloyl, R.sub.1, R.sub.2 =H, glyoxyloyl; their preparation process, their use as cross-linking agents and cross-linking or cross-linkable compositions containing them.Application in the textile or paper industry.
    Type: Grant
    Filed: January 10, 1990
    Date of Patent: March 3, 1992
    Assignee: Societe Francaise Hoechst
    Inventors: Didier Wilheim, Fernand Cuirassier, Alain Blanc
  • Aqueous dispersions of thermally cross-linkable polymers based on alkyl (meth)acrylate, the process for their preparation and their use in particular as binders and/or impregnation agents
    Patent number: 4918139
    Abstract: These aqueous dispersions contain a copolymerizate containing 90 to 99% by weight of repeating units resulting from the polymerization of a mixture of monomers (a) based on 0.1 to 10% by weight of alpha,beta-ethylenic mono- and/or di-carboxylic C.sub.3 -C.sub.5 acid and/or their amides, 0 to 10% by weight of styrene and/or acrylonitrile, the remainder of the esters of (meth)acrylic acid with C.sub.1 -C.sub.12 alkanols; and 10 to 1% by weight of repeating units of general formula (I) ##STR1## where R=H or --CH.sub.3, R.sub.1 =H or C.sub.1 -C.sub.4 alkyl and R.sub.2 and R.sub.3 =C.sub.1 -C.sub.8 alkyl or a --CH.sub.2 --CR.sub.4 R.sub.5 --(CH.sub.2).sub.n --group in which n=0 or 1 and R.sub.4 and R.sub.5 =H or --CH.sub.3.
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: April 17, 1990
    Assignee: Societe Francaise Hoechst of Tour Roussel-Hoechst
    Inventors: Fernand Cuirassier, Didier Wilheim, Alain Blanc