Patents by Inventor Robert Schijf

Robert Schijf 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: 6171636
    Abstract: Glyceride fat which comprises a mixture of glycerides originating from seed oils which have not substantially been subjected to chemical modification, which glycerides are derived from fatty acids which comprise (a) at least 10 wt. % of C18-C24 saturated fatty acids (b) which comprise stearic and/or arachidic and/or behenic acid and/or lignoceric acid (c) oleic and/or linoleic acid, while (d) the ratio of saturated C18-acid/saturated (C20+C22+C24)-acids ≧1, preferably ≧5, more preferably ≧10, which glycerides contain calculated on total fatty acid weight (e) ≦5 wt. % of linolenic acid (f) ≦5 wt. % of trans fatty acids (g) ≦75 wt. %, preferably ≦60 wt. % of oleic acid on total fatty acids on position 2 of the glyceride molecule which glycerides contain calculated on total glycerides weight (h) ≧8 wt. % HOH+HHO triglycerides (i) ≦5 wt.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: January 9, 2001
    Assignee: Van den Bergh Foods Co., division of Conopco, Inc.
    Inventors: Cornelis Laurentius Sassen, Robert Schijf, Adriaan Cornelis Juriaanse
  • Patent number: 5972412
    Abstract: Glyceride fat which comprises a mixture of glycerides originating from seed oils which have not substantially been subjected to chemical modification, which glycerides are derived from fatty acids which comprise(a) at least 10 wt. % of C.sub.18 -C.sub.24 saturated fatty acids(b) which comprise stearic and/or arachidic and/or behenic acid and/or lignoceric acid(c) oleic and/or linoleic acid, while(d) the ratio of saturated C.sub.18 -acid /saturated (C.sub.20 +C.sub.22 +C.sub.24)-acids .gtoreq.1, preferably .gtoreq.5, more preferably .gtoreq.10,which glycerides contain calculated on total fatty acid weight(e) .ltoreq.5 wt. % of linolenic acid(f) .ltoreq.5 wt. % of trans fatty acids(g) .ltoreq.75 wt. %, preferably .ltoreq.60 wt. % of oleic acid on total fatty acids on position 2 of the glyceride moleculewhich glycerides contain calculated on total glycerides weight(h) .gtoreq.8 wt. % HOH+HHO triglycerides(i) .ltoreq.5 wt. % of trisaturated triglycerides(j) which glycerides have a solids content comprising N.sub.
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: October 26, 1999
    Assignee: Van den Bergh Foods Company, Division of Conopco, Inc.
    Inventors: Cornelis Laurentius Sassen, Robert Schijf, Adriaan Cornelis Juriaanse
  • Patent number: 5547698
    Abstract: The invention relates to improvements in edible fats, in particular to improved hardstocks for use in spreads having a low content of saturated fat and to spreads containing these hardstocks. Edible spreads should contain particularly low levels of C-16 saturated fatty acids and low levels of trans fatty acids. Accordingly, the invention provides a fat blend, for use as a hardstock in an edible emulsion spread, obtainable by interesterification of a fat rich in behenic acid together with a fat rich in palmitic and/or stearic acid such that in the interesterified mixture the behenic acid content is at least 5% and the sum of palmitic and stearic acid content is at least 50%. Such hardstock fats may be obtained by interesterification of 10%-90% (by weight) wet fractionated palm stearin (80% palmitic acid) with 90%-10% (by weight) fully hydrogenated high erucic rapeseed oil. The preferred ratio of components is 60% of the behenic acid source and 40% of the palmitic and/or stearic acid source.
    Type: Grant
    Filed: June 3, 1993
    Date of Patent: August 20, 1996
    Assignee: Van Den Bergh Foods Co. Division of Conopco Inc.
    Inventors: Adrianus J. Lansbergen, Robert Schijf
  • Patent number: 4791000
    Abstract: A hardstock suitable for producing margarines and reduced fat spreads rich in polyunsaturated fatty acids and a process for producing such hardstock, which involves directed interesterification of liquid oils and random interesterification of lauric fats and long chain fatty acids, using a chemical or an enzymic catalyst.
    Type: Grant
    Filed: July 9, 1986
    Date of Patent: December 13, 1988
    Assignee: Internationale Octrooi Maatschappij "Octropa" B.V.
    Inventors: Pieter M. J. Holemans, Robert Schijf, Karel P. A. M. Van Putte, Teunis De Man
  • Patent number: 4501764
    Abstract: A margarine fat blend with a reduced tendency to sandiness and a process for reducing development of sandiness in fat blends. The fat blends consist of an oil rich in linoleic acid and a fat having a level of palmitic acid residues of at least 10%, obtained by interesterification of a fat rich in palmitic acid residues and a hydrogenated oil.
    Type: Grant
    Filed: January 19, 1983
    Date of Patent: February 26, 1985
    Assignee: Lever Brothers Company
    Inventors: Anne Gercama, Robert Schijf
  • Patent number: 4486457
    Abstract: There is disclosed a margarine fat blend comprising a liquid oil and a hardstock predominantly of triglycerides from 2 saturated C.sub.16-18 -fatty acids and 1 saturated C.sub.12-14 -fatty acid. Said hardstock can be used at levels as low as 4% by weight along with liquid oils comprising triglycerides from polyunsaturated fatty acids, for producing diet margarines.A process for producing said margarine fat blend is also disclosed, comprising interesterification of (a) triglycerides rich in C.sub.16-18 -fatty acid residues with (b) triglycerides rich in C.sub.12-14 -fatty acid residues and fractionation of the interesterified mixture.
    Type: Grant
    Filed: March 9, 1983
    Date of Patent: December 4, 1984
    Assignee: Lever Brothers Company
    Inventors: Robert Schijf, August M. Trommelen, Gabriel J. T. Lansbergen
  • Patent number: 4482576
    Abstract: A method for treating an edible oil rich in linoleic acids so as to increase its solid fat content comprises the directed interesterification under isothermal conditions of an oil containing at least 60% pufa and 12.5 to 16% safa. The method is simple to perform and produces an oil which can be employed directly in margarine manufacture. The oil can be a mixture of an oil high in pufa such as natural sunflower and safflower seed oil and an oil high in safa such as fully or partially hardened sunflower or safflower seed oil.
    Type: Grant
    Filed: March 8, 1982
    Date of Patent: November 13, 1984
    Assignee: Lever Brothers Company
    Inventors: Jacobus Boot, Adrianus Rozendaal, Robert Schijf
  • Patent number: 4396639
    Abstract: The invention is concerned with a fat blend that is suitable for the preparation of refrigerator-type margarines and low fat spreads. The fat blend contains at least 35% by weight of a randomly interesterified mixture of 20-80 parts by weight of an oil liquid at refrigerator temperature and 80-20 parts by weight of an oil that is rich in lauric acid residues.Preferably the fat blend contains up to 80% of said interesterified mixture. Furthermore, oils liquid at refrigerator temperature, oils of a melting point of 20.degree.-35.degree. C., e.g. 20-50%, and fats of a melting point of 40.degree.-45.degree. C., e.g. 5-20%, may be present.
    Type: Grant
    Filed: March 6, 1980
    Date of Patent: August 2, 1983
    Assignee: Lever Brothers Company
    Inventors: Janos Bodor, Cornelis den Hollander, Robert Schijf