Patents by Inventor Kiryll Lvovich Makovetsky

Kiryll Lvovich Makovetsky 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).

  • Method for the preparation of copolymers of ethylene/norbornene-type monomers with nickel catalysts
    Patent number: 6197984
    Abstract: A method of preparing amorphous copolymers of ethylene and at least one norbornene (NB)-type comonomer is disclosed. These polymers may be random or alternating depending on the choice of catalyst and/or the relative ratio of the monomers used. This method comprises polymerizing said monomers in a diluent or in bulk in the presence of a neutral nickel catalyst which may be represented by the formula wherein Y may be a saturated or unsaturated hydrocarbyl chain, X may be oxygen or sulfur, E may be phosphorus, arsenic, antimony, oxygen or nitrogen, R and R′ independently each is hydrogen or a hydrocarbyl group, L is a ligand containing a heteroatom P, N or O or L and R together with L may form part of a chelating structure in which case L is an ethylenic double bond.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: March 6, 2001
    Assignees: The B. F. Goodrich Company, A.V. Topchiev Institute of Petrochemical Synthesis
    Inventors: Kiryll Lvovich Makovetsky, Eugeny Shmerovich Finkelshtein, Viktor Ivanovich Bykov, Andrey Khristoforovich Bagdasaryan, Larry Funderburk Rhodes
  • Method for preparation of copolymers of ethylene/norbornene-type monomers with nickel catalysts
    Patent number: 5929181
    Abstract: A method of preparing amorphous copolymers of ethylene and at least one norbornene (NB)-type comonomer is disclosed. These polymers may be random or alternating depending on the choice of catalyst and/or the relative ratio of the monomers used. This method comprises polymerizing said monomers in a diluent or in bulk in the presence of a neutral nickel catalyst which may be represented by the formula ##STR1## wherein Y may be a saturated or unsaturated hydrocarbyl chain, X may be oxygen or sulfur, E may be phosphorus, arsenic, antimony, oxygen or nitrogen, R and R' independently each is hydrogen or a hydrocarbyl group, L is a ligand containing a heteroatom P, N or O or L and R together with L may form part of a chelating structure in which case L is an ethylenic double bond.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: July 27, 1999
    Assignees: The B.F.Goodrich Co., A.V. Topchiev Institute of Petrochemical Synthesis
    Inventors: Kiryll Lvovich Makovetsky, Eugeny Shmerovich Finkelshtein, Viktor Ivanovich Bykov, Andrey Khristoforovich Bagdasaryan, Brian Leslie Goodall, Larry Funderburk Rhodes