Patents by Inventor Peter Idelman

Peter Idelman 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).

  • Procedure for producing poly-alpha-olefine-type lubricants
    Patent number: 4956512
    Abstract: In producing lubricants by oligomerizing alpha-olefins with the aid of a catalyst of a BF.sub.3 and alcohol or carboxylic acid cocatalyst, the utilized catalyst complex can be recovered by distillation and reused as catalyst in a similar oligomerizing process.
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: September 11, 1990
    Assignee: Neste Oy
    Inventors: Fredrik Nissfolk, Salme Koskimies, Peter Idelman, Matti Nurminen, Salla Roni
  • Procedure for producing stearyl-.beta.-(3,5-dibutyl-4-hydroxyphenyl) propionate and bis-(.beta.(3,5-dibutyl-4-hydroxybenzyl)-methylcarboxyethyl)sulphide
    Patent number: 4694099
    Abstract: A procedure for producing stearyl-.beta.-(3,5-dibutyl-4-hydroxyphenyl)propionate and bis-(.beta.-(3,5-dibutyl-4-hydroxybenzyl)-methylcarboxyethyl)sulphide. In the procedure, a titanate-catalysis exchange esterification reaction is carried out with propionic acid ester conforming to formula (IV) and stearyl alcohol or thiodiglycol. ##STR1## where Bu is an n-butyl, secondary butyl, isobutyl or tertiary butyl group and R.sub.2 is a methyl, ethyl, propyl or butyl group.
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: September 15, 1987
    Assignee: Neste Oy
    Inventors: Matts Ahlfors, Salme Koskimies, Leila Lahtinen, Peter Idelman