Patents by Inventor Eric Paul Wasserman

Eric Paul Wasserman 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: 6258904
    Abstract: There is provided a catalyst containing a transition metal precursor having the formula (C5R15)MX3, an alcohol, a substituted bulky phenol, an aluminoxane, and optionally a support or spray drying material. There is also provided a polymerization process employing the catalyst composition, a polymer produced using the catalyst, and a cable produced therefrom.
    Type: Grant
    Filed: August 17, 1999
    Date of Patent: July 10, 2001
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Eric Paul Wasserman, Xinlai Bai, Elizabeth Clair Fox
  • Patent number: 6159889
    Abstract: There is provided a catalyst comprising: (A) a titanium metal compound represented by the formula: (C.sub.5 R.sup.1.sub.5)TiX.sub.2 Y; (B) a compound having the formula: R.sup.2 H, wherein R.sup.2 is an alkoxy, thiolato, carboxyl, or amino group; (C) an aluminoxane, and optionally a support or spray drying material (D). There is also provided a polymerization process employing the catalyst, a polymer produced using the catalyst, and a cable produced therefrom.
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: December 12, 2000
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventor: Eric Paul Wasserman
  • Patent number: 6127302
    Abstract: There is provided a catalyst containing a transition metal precursor having the formula (C.sub.5 R.sup.1.sub.5)MQ.sub.3, a bulky non-phenolic compound, an aluminoxane, and optionally a Br.phi.nsted acid and/or a support or spray drying material. There is also provided a polymerization process employing the catalyst composition, a polymer produced using the catalyst, and a cable produced therefrom.
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: October 3, 2000
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventor: Eric Paul Wasserman
  • Patent number: 6028151
    Abstract: A process for producing an olefin polymer, which comprises contacting at least two olefin monomers under polymerization conditions with a catalyst composition comprising A) an aluminoxane-impregnated support prepared by contacting an aluminoxane with an inert carrier material and heating to a temperature of at least about 80.degree. C.; B) a metallocene of the formula:(L).sub.y (L')MY.sub.(x-y-1)wherein M is a metal from groups IIIB to VIII of the Periodic Table; each L and L' is independently a cycloalkadienyl group bonded to M; each Y is independently hydrogen, an aryl, alkyl, alkenyl, alkylaryl, or arylalkyl radical having 1-20 carbon atoms, a hydrocarboxy radical having from 1-20 carbon atoms, a halogen, RCO.sub.2 --, or R.sub.2 N--, wherein R is a hydrocarbyl group containing 1 to about 20 carbon atoms; y is 0, 1, or 2; x is 1, 2, 3, or 4; and x-y.gtoreq.1; C) a bulky aluminum alkyl of the formula:AlR.sup.1.sub.x R.sup.2.sub.(3-x)wherein R.sup.
    Type: Grant
    Filed: February 25, 1998
    Date of Patent: February 22, 2000
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Eric Paul Wasserman, Sun Chueh Kao, Frederick John Karol
  • Patent number: 5962362
    Abstract: There is provided a catalyst containing a transition metal precursor having the formula (C.sub.5 R.sup.1.sub.5)MX.sub.3, an alcohol, a substituted bulky phenol, an aluminoxane, and optionally a support or spray drying material. There is also provided a polymerization process employing the catalyst composition, a polymer produced using the catalyst, and a cable produced therefrom.
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: October 5, 1999
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Eric Paul Wasserman, Xinlai Bai, Elizabeth Clair Fox
  • Patent number: 5852143
    Abstract: Polyethylene having a broad molecular weight distribution, a narrow comonomer distribution and excellent processability is easily and cost effectively made using stereoisomeric mixtures of bridged metallocene catalysts containing cycloalkadienyl ligands with facial chirality.
    Type: Grant
    Filed: April 16, 1997
    Date of Patent: December 22, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Purna Chand Sishta, Eric Paul Wasserman, Frederick John Karol
  • Patent number: 5756416
    Abstract: A catalyst composition comprising A) an aluminoxane-impregnated support prepared by contacting an aluminoxane with an inert carrier material and heating to a temperature of at least about 80.degree. C.; B) a metallocene of the formula:(L).sub.y (L')MY.sub.(x-y-1)wherein M is a metal from groups IIIB to VIII of the Periodic Table; each L and L' is independently a cycloalkadienyl group bonded to M; each Y is independently hydrogen, an aryl, alkyl, alkenyl, alkylaryl, or arylalkyl radical having 1-20 carbon atoms, a hydrocarboxy radical having from 1-20 carbon atoms, a halogen, RCO.sub.2 --, or R.sub.2 N--, wherein R is a hydrocarbyl group containing 1 to about 20 carbon atoms; n and m are each 0, 1, 2, 3, or 4; y is 0, 1, or 2; x is 1, 2, 3, or 4; and x-y.gtoreq.1; C) a bulky aluminum alkyl of the formula:AlR.sup.1.sub.x R.sup.2.sub.(3-x)wherein R.sup.1 is a hydrocarbyl group having 1 to 12 carbon atoms; x is an integer from 0 to 2; R.sup.2 is a hydrocarbyl group of the formula --(CH.sub.2).sub.y -- R.sup.
    Type: Grant
    Filed: November 28, 1995
    Date of Patent: May 26, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Eric Paul Wasserman, Sun Chueh Kao, Frederick John Karol
  • Patent number: 5674795
    Abstract: Metallocene-containing catalyst compositions that include inert filler, a method for their preparation, and a method for their use in production of polyolefins are disclosed and claimed. The catalyst compositions contain solid particles of a mixture comprising a) a metallocene catalyst; b) a cocatalyst capable of activating said metallocene catalyst; and c) particulate filler material having an average particle size of less than about 10 micrometers that is unreactive with the metallocene catalyst and the cocatalyst. They are prepared by spray drying a slurry of the constituents.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 7, 1997
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Eric Paul Wasserman, Mark Wilton Smale, Timothy Roger Lynn, Robert Converse Brady, III, Frederick John Karol
  • Patent number: 5672669
    Abstract: Metallocene-containing catalyst compositions that include inert filler, a method for their preparation, and a method for their use in production of polyolefins are disclosed and claimed. The catalyst compositions contain solid particles of a mixture comprising a) a metallocene catalyst; b) a cocatalyst capable of activating said metallocene catalyst; and c) particulate filler material having an average particle size of less than about 10 micrometers that is unreactive with the metallocene catalyst and the cocatalyst. They are prepared by spray drying a slurry of the constituents.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 30, 1997
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Eric Paul Wasserman, Mark Wilton Smale, Timothy Roger Lynn, Robert Converse Brady III, Frederick John Karol
  • Patent number: 5648310
    Abstract: Metallocene-containing catalyst compositions that include inert filler, a method for their preparation, and a method for their use in production of polyolefins are disclosed and claimed. The catalyst compositions contain solid particles of a mixture comprising a) a metallocene catalyst; b) a cocatalyst capable of activating said metallocene catalyst; and c) particulate filler material having an average particle size of less than about 10 micrometers that is unreactive with the metallocene catalyst and the cocatalyst. They are prepared by spray drying a slurry of the constituents.
    Type: Grant
    Filed: June 26, 1995
    Date of Patent: July 15, 1997
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Eric Paul Wasserman, Mark Wilton Smale, Timothy Roger Lynn, Robert Converse Brady, III, Frederick John Karol