Patents by Inventor Ijede van der Kooy

Ijede van der Kooy 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: 5037690
    Abstract: The invention provides a novel shaped product comprising a sheet material of polyurethane resin material reinforced with binder-free natural-fibre material, such as jute, flax, hemp, coir, ampas, ramie or cotton, possibly combined with polypropylene, polyethylene and/or glass fibres. A preferred fibre material is jute, preferably in the form of jute needled felt. The invention also provides a process for making the product. In the process, a binder-free mat of natural-fibre material having a water content of at least 4% which is impregnated with a known per se mixture thermosettable to form a polyurethane material, comprising a polyether-polyol component and an isocyanate component, followed by maintaining the temperature of the mixture at 20.degree.-50.degree. C., and setting the impregnated fibrous mat in a closed mold at a pressure of 3.5-20 kg/cm.sup.2 and a temperature of 20.degree.-75.degree. C.
    Type: Grant
    Filed: November 28, 1988
    Date of Patent: August 6, 1991
    Assignee: De Groot Automotives, B.V.
    Inventor: Ijede van der Kooy