Patents by Inventor Jozef Julius Sleeckx

Jozef Julius Sleeckx 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).

  • Non-linear styrenic polymer compositions and articles prepared therefrom
    Patent number: 6093781
    Abstract: Monovinyl aromatic polymer compositions with high melt strength, good flow and good heat properties which are suitable for fast injection molding, blow molding and thermoforming applications, comprising non-linear monovinyl aromatic polymers and copolymers having comb-type structures with 3 branches, star type structures with 4 to 6 branches, and/or dendritic structures in which the branches themselves have attached branched units. These compositions possess inherent melt strength and can be blow molded or thermoformed without sagging or molded into articles in shorter cycle times using less material than linear monovinyl aromatic polymers and copolymers with the same flow and heat distortion temperatures.
    Type: Grant
    Filed: April 9, 1997
    Date of Patent: July 25, 2000
    Assignee: The Dow Chemical Company
    Inventors: Mehmet Demirors, Jozef Julius Sleeckx, Peter Hendrikus Vollenberg, Chau V. Vo, Gary C. Welsh