Patents by Inventor Roelof Keuning

Roelof Keuning 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).

  • Process for the dry fractionation of oils and fats having a steep dilatation/temperature line and use of the fractionated fats in margarines and shortenings
    Patent number: 4360536
    Abstract: The dry fractionation of oils and fats having a steep dilatation curve (A), i.e. exhibiting a difference in dilatation value at 15.degree. C. and 25.degree. C. of at least 800 mm.sup.3 /25 grammes, in practice is difficult. This problem is solved by mixing oils and fats (A) with triglycerides (B) of such nature that the difference in dilatation of the mixture obtained diminishes substantially. The triglycerides (B) have a difference in dilatation values at 15.degree. C. and 25.degree. C. not exceeding 600 mm.sup.3 /25 g. The weight ratio between fats (A) and fats (B) varies between (10-90):(90-10), preferably (20-80):(80-20) and ideally (40-60):(60-40). The process is e.g. particularly attractive for the dry fractionation of palmkernel oil (fat A) in the presence of palm oil (fat B).
    Type: Grant
    Filed: May 26, 1981
    Date of Patent: November 23, 1982
    Assignee: Lever Brothers Company
    Inventors: Roelof Keuning, Adolf J. Haighton, Willem Dijkshoorn, Hindrik Huizinga