Patents by Inventor Patrick S. Bynum

Patrick S. Bynum 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).

  • Lubricant additives
    Patent number: 5391312
    Abstract: Seals contacted with lubricants, such as poly-.alpha.-olefin lubricants, are made to swell rather than shrink by the use of novel seal-swell agents which are effective even when used in amounts constituting less than 5% of the weight of the lubricant compositions. These seal-swell agents are ester oils composed of molecules corresponding to the formula ROOC--CH.sub.2 CH.sub.2 --[(ROOC)CHCH.sub.2 ].sub.m --C(COOR).sub.2 --[CH.sub.2 CH(COOR)].sub.n --CH.sub.2 CH.sub.2 COOR in which the R's represent alkyl groups of 1-30 carbons, and each of m and n represents zero or a positive integer such that the sum of m and n in a molecule is 0-30.
    Type: Grant
    Filed: August 2, 1993
    Date of Patent: February 21, 1995
    Assignee: Albemarle Corportion
    Inventors: K. Pushpananda A. Senaratne, Patrick S. Bynum, Mahmood Sabahi
  • Preparation of cyclic ethers
    Patent number: 5241085
    Abstract: Cyclic ethers are prepared by reacting an unsaturated olefin oligomer derived from an alpha-olefin monomer containing from about 6 to 20 carbon atoms with an aldehyde in the presence of an acid catalyst.
    Type: Grant
    Filed: November 23, 1992
    Date of Patent: August 31, 1993
    Assignee: Ethyl Corporation
    Inventors: K. Pushpananda A. Senaratne, Patrick S. Bynum, Kenneth C. Lilje, Edward F. Zaweski
  • Process for alkylating salicylates with polyalphaolefin
    Patent number: 5225588
    Abstract: Hydroxybenzoates such as methylsalicylate are alkylated by reacting a hydroxybenzoate with a polyalphaolefin in the presence of a catalytic amount of SnCl.sub.4.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: July 6, 1993
    Assignee: Ethyl Corporation
    Inventors: K. Pushpananda A. Senaratne, Patrick S. Bynum
  • Preparation of cyclic ethers
    Patent number: 5196552
    Abstract: Cyclic ethers are prepared by reacting an unsaturated olefin oligomer derived from an alpha-olefin monomer containing from about 6 to 20 carbon atoms with an aldehyde in the presence of an acid catalyst.
    Type: Grant
    Filed: October 2, 1991
    Date of Patent: March 23, 1993
    Assignee: Ethyl Corporation
    Inventors: K. Pushpananda A. Senaratne, Patrick S. Bynum, Kenneth C. Lilje, Edward F. Zaweski