Patents by Inventor Donald W. Twomey

Donald W. Twomey 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: 7615598
    Abstract: A method of continuously manufacturing a high viscosity polyalphaolefin product by introducing a monomer and an ionic liquid catalyst together into a reaction zone while simultaneously withdrawing from the reaction zone a reaction zone effluent that contains the high viscosity polyalphaolefin. The reaction zone is operated under reaction conditions suitable for producing the high viscosity polyalphaolefin product. The preferred high viscosity polyalphaolefin has a kinematic viscosity exceeding about 8 cSt and is the reaction product of the trimerization, oligomerization, or polymerization of an alpha olefin or a mixture of one or more product thereof. The high viscosity polyalphaolefins are useful as lubricants or lubricant additives.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: November 10, 2009
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Kenneth D. Hope, Donald A. Stern, Donald W. Twomey, J. Barry Collins
  • Publication number: 20080161623
    Abstract: A method of continuously manufacturing a high viscosity polyalphaolefin product by introducing a monomer and an ionic liquid catalyst together into a reaction zone while simultaneously withdrawing from the reaction zone a reaction zone effluent that contains the high viscosity polyalphaolefin. The reaction zone is operated under reaction conditions suitable for producing the high viscosity polyalphaolefin product. The preferred high viscosity polyalphaolefin has a kinematic viscosity exceeding about 8 cSt and is the reaction product of the trimerization, oligomerization, or polymerization of an alpha olefin or a mixture of one or more product thereof. The high viscosity polyalphaolefins are useful as lubricants or lubricant additives.
    Type: Application
    Filed: March 14, 2008
    Publication date: July 3, 2008
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: Kenneth D. Hope, Donald A. Stern, Donald W. Twomey, J. Barry Collins
  • Patent number: 7351780
    Abstract: A method of continuously manufacturing a high viscosity polyalphaolefin product by introducing a monomer and an ionic liquid catalyst together into a reaction zone while simultaneously withdrawing from the reaction zone a reaction zone effluent that contains the high viscosity polyalphaolefin. The reaction zone is operated under reaction conditions suitable for producing the high viscosity polyalphaolefin product. The preferred high viscosity polyalphaolefin has a kinematic viscosity exceeding about 8 cSt and is the reaction product of the trimerization, oligomerization, or polymerization of an alpha olefin or a mixture of one or more product thereof. The high viscosity polyalphaolefins are useful as lubricants or lubricant additives.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: April 1, 2008
    Assignee: Chevron Phillips Chemical Company, LP
    Inventors: Kenneth D. Hope, Donald A. Stern, Donald W. Twomey, J. Barry Collins
  • Patent number: 7259284
    Abstract: A process for preparing very high viscosity polyalphaolefins using an acidic ionic liquid oligomerization catalyst in the absence of an organic diluent and the products formed thereby. A method of continuously manufacturing a high viscosity polyalphaolefin product by introducing a monomer and an ionic liquid catalyst together into a reaction zone while simultaneously withdrawing from the reaction zone a reaction zone effluent that contains the high viscosity polyalphaolefin. The reaction zone is operated under reaction conditions suitable for producing the high viscosity polyalphaolefin product. The preferred high viscosity polyalphaolefin has a kinematic viscosity exceeding 8 cSt and is the reaction product of the trimerization, oligomerization, or polymerization of an alpha olefin or a mixture of one or more product thereof. The high viscosity polyalphaolefins are useful as lubricants or lubricant additives.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: August 21, 2007
    Assignee: Chevron Phillips Chemical Company, LP
    Inventors: Kenneth D. Hope, Donald W. Twomey, Michael S. Driver, Donald A. Stern, J. Barry Collins, Thomas V. Harris
  • Patent number: 6984605
    Abstract: A method for manufacturing ionic liquid compositions by use of a two-step process which includes the contacting, under first reaction conditions, an amine compound with a hydrogen halide that is preferably in the gaseous form to provide a first reaction mixture. The first reaction mixture is then contacted, under second reaction conditions, with a metal halide compound to form the ionic liquid end-product.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: January 10, 2006
    Assignee: Chevron Phillips Chemical Company, LP
    Inventors: Kenneth D. Hope, Donald A. Stern, Donald W. Twomey
  • Publication number: 20040030075
    Abstract: A method of continuously manufacturing a high viscosity polyalphaolefin product by introducing a monomer and an ionic liquid catalyst together into a reaction zone while simultaneously withdrawing from the reaction zone a reaction zone effluent that contains the high viscosity polyalphaolefin. The reaction zone is operated under reaction conditions suitable for producing the high viscosity polyalphaolefin product. The preferred high viscosity polyalphaolefin has a kinematic viscosity exceeding about 8 cSt and is the reaction product of the trimerization, oligomerization, or polymerization of an alpha olefin or a mixture of one or more product thereof. The high viscosity polyalphaolefins are useful as lubricants or lubricant additives.
    Type: Application
    Filed: April 22, 2003
    Publication date: February 12, 2004
    Inventors: Kenneth D. Hope, Donald A. Stern, Donald W. Twomey, J. Barry Collins
  • Publication number: 20040005985
    Abstract: A method for manufacturing ionic liquid compositions by use of a two-step process which includes the contacting, under first reaction conditions, an amine compound with a hydrogen halide that is preferably in the gaseous form to provide a first reaction mixture. The first reaction mixture is then contacted, under second reaction conditions, with a metal halide compound to form the ionic liquid end-product.
    Type: Application
    Filed: April 22, 2003
    Publication date: January 8, 2004
    Inventors: Kenneth D. Hope, Donald A. Stern, Donald W. Twomey