Patents by Inventor Cheryl L. Weckle

Cheryl L. Weckle 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).

  • Vacuum thermoformed, extruded sheeting with improved reduced gloss
    Patent number: 8431651
    Abstract: The present invention is directed to an elastomer composition having at least two phases, one phase comprising a very low density polyethylene “VLDPE” component and another phase comprising a propylene polymer component wherein the propylene polymer component comprises at least one branched polypropylene and the VLDPE phase is continuous. Preferably, the VLDPE component has a melt tan delta between about 0.7 and 8 as measured by parallel plate rheometer at 0.1 radians per second, 180° C., and 10 percent strain; and the ratio of the melt tan delta of the VLDPE to the melt tan delta of the propylene component is from 0.5 to 4. The invention also provides a method of making such compositions, and to low gloss articles prepared from the same.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: April 30, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Mary Ann Jones, Cheryl L. Weckle
  • VACUUM THERMOFORMED, EXTRUDED SHEETING WITH IMPROVED REDUCED GLOSS
    Publication number: 20120101232
    Abstract: The present invention is directed to an elastomer composition having at least two phases, one phase comprising a very low density polyethylene “VLDPE” component and another phase comprising a propylene polymer component wherein the propylene polymer component comprises at least one branched polypropylene and the VLDPE phase is continuous. Preferably, the VLDPE component has a melt tan delta between about 0.7 and 8 as measured by parallel plate rheometer at 0.1 radians per second, 180° C., and 10 percent strain; and the ratio of the melt tan delta of the VLDPE to the melt tan delta of the propylene component is from 0.5 to 4. The invention also provides a method of making such compositions, and to low gloss articles prepared from the same.
    Type: Application
    Filed: July 2, 2010
    Publication date: April 26, 2012
    Inventors: Mary Ann Jones, Cheryl L. Weckle
  • Polyurethane Polymer
    Publication number: 20100184938
    Abstract: A rigid thermoplastic polyurethane made by reacting a diisocyanate with a diol, wherein the diisocyanate includes a mixture of positional and geometric isomers of bis(isocyanatomethyl) cyclohexane.
    Type: Application
    Filed: May 19, 2008
    Publication date: July 22, 2010
    Applicant: LUBRIZOL ADVANCED MATERIALS, INC.
    Inventors: Daphne N. Robinson, John M. Warakomski, John N. Argyropoulos, Cheryl L. Weckle
  • Flow carbonate polymer blends
    Patent number: 6306962
    Abstract: Disclosed is a polymer blend composition containing an aromatic carbonate polymer and a rubber-modified monovinylidene aromatic copolymer comprising a star-branched rubber and optionally, a linear rubber. The polymer blend compositions according to the invention have a desirable balance of processability and when molded, impact strength.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: October 23, 2001
    Assignee: The Dow Chemical Company
    Inventors: Hoang T. Pham, Cheryl L. Weckle, Jamie J. Stanley, Joseph M. Ceraso