Patents Assigned to Texas Alkyls, Inc.
  • Patent number: 5086024
    Abstract: A catalyst system for the polymerization of olefins is disclosed which comprises a metallocene component, for example, organometallic coordination compounds of a Group IVB or Group VB hydrolysis products comprising methane and C.sub.2 or higher alkanes, such as isobutane, n-butane or n-hexane.
    Type: Grant
    Filed: August 1, 1990
    Date of Patent: February 4, 1992
    Assignee: Texas Alkyls, Inc.
    Inventors: Clark C. Crapo, Dennis B. Malpass
  • Patent number: 5063188
    Abstract: A catalyst component, adapted for use in the polymerization and copolymerization of ethylene, is formed by reaction of an organomagnesium compound and a tetraaalkyl silicate, contact of the resulting product with a chlorinating reagent, and treatment of the product from the previous step with liquid titanium halide.
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: November 5, 1991
    Assignee: Texas Alkyls, Inc.
    Inventors: Dennis B. Malpass, Bor-Ping E. Wang
  • Patent number: 5059703
    Abstract: Copper alkoxy alkoxides of the formula CuOR or Cu(OR).sub.2, where R is derived from an alkoxy alkanol of from 3 to 8 carbon atoms, are superconducting ceramic precursors. They can be formed by reacting an alkoxy alkanol with a copper alkoxide. Compositions containing theser alkoxides solubilized in an organic solvent, such as toluene, can be prepared by the additional use of a barium alkoxide solubilization agent.
    Type: Grant
    Filed: April 7, 1989
    Date of Patent: October 22, 1991
    Assignee: Texas Alkyls, Inc.
    Inventors: Andrzej M. Piotrowski, Dennis B. Malpass
  • Patent number: 5041585
    Abstract: Aluminoxanes can be produced by contacting an organic solvent containing a trialkylaluminum compound with an atomized spray of water. If desired, a pore-formed aluminoxane can be present as a reaction moderator.
    Type: Grant
    Filed: June 8, 1990
    Date of Patent: August 20, 1991
    Assignee: Texas Alkyls, Inc.
    Inventors: Dennis L. Deavenport, James T. Hodges, III., Dennis B. Malpass, Nam H. Tran
  • Patent number: 5041584
    Abstract: Methylaluminoxane can be formed by the reaction of a tetraalkyldialuminoxane containing C.sub.2 or higher alkyl groups with trimethylaluminum with the trimethylaluminum being present in an amount which is not present in stoichiometric excess. Another embodiment of the present invention involves the synthesis of the methylaluminoxane by reaction of a trialkylaluminum compound or a tetraalkyldialuminoxane containing C.sub.2 or higher alkyl groups with water to form a polyalkylaluminoxane with is then reacted with trimethylaluminum. A third embodiment of the present invention involves the synthesis of the methylaluminoxane by reaction of the aforementioned polyalkylaluminoxane with trimethylaluminum and then with water.
    Type: Grant
    Filed: August 1, 1990
    Date of Patent: August 20, 1991
    Assignee: Texas Alkyls, Inc.
    Inventors: Clark C. Crapo, Dennis B. Malpass
  • Patent number: 5015750
    Abstract: Trimethylaluminum can be formed by reacting a methylaluminum chloride, such as dimethylaluminum chloride, with sodium in the presence of an effective amount of an alkali or alkaline earth metal fluoride (e.g., sodium fluoride) to enhance the reaction.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: May 14, 1991
    Assignee: Texas Alkyls, Inc.
    Inventors: Nam H. Tran, Dennis L. Deavenport, Curtis W. Post
  • Patent number: 4960878
    Abstract: Methylaluminoxane can be formed by the reaction of a tetraalkyldialuminoxane containing C.sub.2 or higher alkyl groups with trimethylaluminum with the trimethylaluminum being present in an amount which is not present in stoichiometric excess. Another embodiment of the present invention involves the synthesis of the methylaluminoxane by reaction of a trialkylaluminum compound or a tetraalkyldialuminoxane containing C.sub.2 or higher alkyl groups with water to form a polyalkylaluminoxane which is then reacted with trimethylaluminum. A third embodiment of the present invention involves the synthesis of the methylaluminoxane by reaction of the aforementioned polyalkylaluminoxane with trimethylaluminum and then with water.
    Type: Grant
    Filed: December 2, 1988
    Date of Patent: October 2, 1990
    Assignee: Texas Alkyls, Inc.
    Inventors: Clark C. Crapo, Dennis B. Malpass
  • Patent number: 4910178
    Abstract: Adducts of a trialkylaluminum or a dialkylaluminum hydride and diisoalkenyl benzene compounds have been discovered. Catalyst components for the polymerization of olefins have also been developed which comprise, as the cocatalyst, the reaction product of a trialkylaluminum or a dialkylaluminum hydride (e.g., diisobutylaluminum hydride) and an alkenyl-substituted benzene (e.g., diisopropenyl benzene).
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: March 20, 1990
    Assignee: Texas Alkyls, Inc.
    Inventors: Dennis B. Malpass, Michael J. Breen, Loyd W. Fannin
  • Patent number: 4904788
    Abstract: Hydrocarbon-soluble complexes of magnesium alkoxides with magnesium amides are described. The magnesium amide moiety is derived from an amine (e.g., an N-heterocyclic amine). The complexes can be formed by reaction between a magnesium alkyl and a mixture of aliphatic alcohols and an amine.
    Type: Grant
    Filed: June 7, 1988
    Date of Patent: February 27, 1990
    Assignee: Texas Alkyls, Inc.
    Inventors: Andrzej M. Piotrowski, Dennis B. Malpass
  • Patent number: 4885406
    Abstract: Hydrocarbon-soluble complexes of magnesium alkoxides with magnesium aryl oxides are described. The magnesium aryl oxide moiety is derived from a hindered aromatic alcohol. The complexes can be formed by reaction between a magnesium alkyl and a mixture of aliphatic alcohols and a hindered aromatic alcohol.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: December 5, 1989
    Assignee: Texas Alkyls, Inc.
    Inventors: Andrzej M. Piotrowski, Dennis B. Malpass
  • Patent number: 4875941
    Abstract: Equipment which is contaminated with an organometallic residue is treated with gaseous carbon dioxide to react with the organometallic compounds contained in the equipment.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: October 24, 1989
    Assignee: Texas Alkyls, Inc.
    Inventors: Andrzej M. Piotrowski, Joseph J. Ligi
  • Patent number: 4876318
    Abstract: Compounds of the formula ##STR1## where R is alkyl, R' is independently selected from alkyl and aryl, and n ranges from 1 to 8 are useful as coupling agents in filled polymer compositions, e.g., in filled, polar polymers such as polybutylene terephthalate.
    Type: Grant
    Filed: July 19, 1988
    Date of Patent: October 24, 1989
    Assignee: Texas Alkyls, Inc.
    Inventors: Dennis B. Malpass, Kelly B. Triplett, Andrzej M. Piotrowski
  • Patent number: 4851378
    Abstract: Aluminum-containing compositions for use particularly as olefin polymerization or copolymerization cocatalysts are produced by reaction of trialkylaluminums or dialkylaluminum hydrides with 1,3- or 1,4-pentadiene at a mole ratio of aluminum compound to pentadiene of approximately 1:1, with removal during the reaction of evolved olefin.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: July 25, 1989
    Assignee: Texas Alkyls, Inc.
    Inventors: Dennis B. Malpass, Loyd W. Fannin, Michael J. Breen
  • Patent number: 4849574
    Abstract: Ketones or aldehydes are methylenated to form the corresponding olefin by reaction with a bis(alkylchloroalumino)methane, e.g., in the form of its dietherate.
    Type: Grant
    Filed: September 2, 1988
    Date of Patent: July 18, 1989
    Assignee: Texas Alkyls, Inc.
    Inventors: Andrzej M. Piotrowski, Dennis B. Malpass
  • Patent number: 4847239
    Abstract: Copper alkoxy alkoxides of the formula CuOR or Cu(OR).sub.2, where R is derived from an alkoxy alkanol of from 3 to 8 carbon atoms, are superconducting ceramic precursors. Compositions containing these alkoxides solubilized in an organic solvent, such as toluene, can be prepared by the additional use of a barium alkoxide solubilization agent.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: July 11, 1989
    Assignee: Texas Alkyls, Inc.
    Inventors: Andrzej M. Piotrowski, Dennis B. Malpass
  • Patent number: 4841082
    Abstract: Dimethylzinc is prepared by heating a dimethylaluminum halide, e.g., dimethylaluminum chloride, and a dialkylzinc, e.g., diethylzinc, with distillative removal of dimethylzinc from the reaction mixture which results therefrom.
    Type: Grant
    Filed: August 19, 1988
    Date of Patent: June 20, 1989
    Assignee: Texas Alkyls, Inc.
    Inventors: Scott H. Eidt, Dennis L. Deavenport, Nam H. Tran
  • Patent number: 4826665
    Abstract: Aluminum alkyl vapor is removed from a gas stream by scrubbing with a hydrocarbon scrubbing liquid containing a long chain carboxylic acid dissolved therein.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: May 2, 1989
    Assignee: Texas Alkyls, Inc.
    Inventors: Loyd W. Fannin, Dennis B. Malpass, John R. Rohrer
  • Patent number: 4788367
    Abstract: Ketones are methylenated to form the corresponding olefin by reaction with a bis(alkylchloroalumino)methane, e.g., in the form of its dietherate.
    Type: Grant
    Filed: November 5, 1987
    Date of Patent: November 29, 1988
    Assignee: Texas Alkyls Inc.
    Inventors: Andrzej M. Piotrowski, Dennis B. Malpass
  • Patent number: 4788368
    Abstract: Ketones are alkylenated to form the corresponding olefin by reaction with a bis(substituted alumino)substituted methane, e.g., in the form of its dietherate.
    Type: Grant
    Filed: November 5, 1987
    Date of Patent: November 29, 1988
    Assignee: Texas Alkyls Inc.
    Inventors: Andrzej M. Piotrowski, Dennis B. Malpass, John J. Eisch, Marek P. Boleslawski
  • Patent number: 4785125
    Abstract: A process for the synthesis of bis(dichloroalumino)methane, with a lessened danger of runaway reaction, entails the gradual addition of methylene bromide to a heated mixture of aluminum and methylene chloride. An aluminum alkyl activator is also advantageously present as a scavenger for moisture and oxygen to prevent undesired oligomer formation.
    Type: Grant
    Filed: November 5, 1987
    Date of Patent: November 15, 1988
    Assignee: Texas Alkyls, Inc.
    Inventors: Andrzej M. Piotrowski, Dennis B. Malpass