Patents by Inventor Dominique Lastecoueres

Dominique Lastecoueres 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).

  • Process for the controlled radical polymerization or copolymerization of (meth)acrylic, vinyl, vinylidene and diene monomers, and (co)polymers obtained
    Patent number: 5854364
    Abstract: At least one of the monomers is polymerized or copolymerized in bulk, solution, emulsion or suspension, at a temperature which may be as low as 0.degree. C., in the presence of at least one radical-generator compound and at least one metal complex catalyst of formula Ma.sub.a (L).sub.n (M=Cu, Ag or Au; A=Hal, pseudohalogen or carboxylate; L=ligands of M chosen from those of formula ##STR1## R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 =H, C.sub.1 -C.sub.10 alkyl, aromatic or heteroaromatic; Z.sup.1, Z.sup.2 and Z.sup.3 =one of the following: ##STR2## (R.sup.7 to R.sup.18 =H, C.sub.1 -C.sub.10 alkyl, aromatic or heteroaromatic; R.sup.19 and R.sup.20 =H, Hal, C.sub.1 -C.sub.10 alkyl, C.sub.1 -C.sub.10 alkoxy or --(CR.sup.21 R.sup.22)rNR.sup.23 R.sup.24, where R.sup.21, R.sup.22, R.sup.23 and R.sup.24 =H,C.sub.1 -C.sub.10 alkyl, aromatic or heteroaromatic, and r=integer from 1 to 10; it being possible also for not more than two from among Z.sup.1, Z.sup.2 and Z.sup.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: December 29, 1998
    Assignee: Elf Atochem S.A.
    Inventors: Thierry Senninger, Laurent Sanchez, Vincent Darcos, Dominique Lastecoueres, Jean-Baptiste Verlhac