Patents Assigned to Burmah-Castrol, Inc.
  • Process for producing lubricant material
    Patent number: 4587368
    Abstract: A process is described for the production of a synthetic hydrocarbon especially useful as a base for high performance motor oils. The material is a oligomer of alpha-olefin monomer having a uniquely selective product distribution emphasizing tetramers and pentamers. This distribution is achieved through a controlled polymerization involving an initial oligomerization step followed by the delayed addition of fresh monomer to improve the yield of the desired tetramers and pentamers.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: May 6, 1986
    Assignee: Burmah-Castrol, Inc.
    Inventor: Robert E. Pratt