Patents by Inventor Egbert Veldman

Egbert Veldman 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).

  • Sulphur cement product
    Patent number: 8815005
    Abstract: A sulphur cement product comprising from 10 to 30 wt % sulphur, 70 to 90 wt % of particulate inorganic material and from 0.4 to 2 wt % wax, and comprising less than 5 wt % bitumen, wherein the weight percentages are based upon the weight of the sulphur cement product, is disclosed. Further disclosed is a process for preparing a sulphur cement product; a process for preparing a sulphur cement surfacing on a structural material; and use of a wax to improve the fouling deposit removal and/or graffiti removal properties of a sulphur cement product.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: August 26, 2014
    Assignee: Shell Oil Company
    Inventors: Guy Iode Magda Maria Verbist, Ingrid Ploegaert, Egbert Veldman
  • SULPHUR CEMENT PRODUCT
    Publication number: 20120118206
    Abstract: A sulphur cement product comprising from 10 to 30 wt % sulphur, 70 to 90 wt % of particulate inorganic material and from 0.4 to 2 wt % wax, and comprising less than 5 wt % bitumen, wherein the weight percentages are based upon the weight of the sulphur cement product, is disclosed. Further disclosed is a process for preparing a sulphur cement product; a process for preparing a sulphur cement surfacing on a structural material; and use of a wax to improve the fouling deposit removal and/or graffiti removal properties of a sulphur cement product.
    Type: Application
    Filed: May 18, 2010
    Publication date: May 17, 2012
    Inventors: Guy Iode Magda Maria Verbist, Ingrid Ploegaert, Egbert Veldman