Patents by Inventor Steven L. Rotz

Steven L. Rotz 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).

  • Bitumen compositions and methods of making
    Patent number: 9631094
    Abstract: A non-blown roofing grade bitumen composition comprising bitumen feedstock, polyolefin having a molecular weight of from about 800 to about 50,000 g/mol, and optionally one or more additives, wherein the softening point of the composition is above 70° C. as determined according to method ASTM D36 and the penetration of the composition is at least about 12 dmm at 25° C. as determined according to method ASTM D5. A method of making the same.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: April 25, 2017
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Steven L. Rotz, Scott Hacker, Yonghong Ruan
  • BITUMEN COMPOSITIONS AND METHODS OF MAKING
    Publication number: 20140069297
    Abstract: A non-blown roofing grade bitumen composition comprising bitumen feedstock, polyolefin having a molecular weight of from about 800 to about 50,000 g/mol, and optionally one or more additives, wherein the softening point of the composition is above 70° C. as determined according to method ASTM D36 and the penetration of the composition is at least about 12 dmm at 25° C. as determined according to method ASTM D5. A method of making the same.
    Type: Application
    Filed: September 5, 2013
    Publication date: March 13, 2014
    Applicant: Honeywell International Inc.
    Inventors: Steven L. Rotz, Scott Hacker, Yonghong Ruan
  • Rotogravure or flexographic printing ink composition containing an antiwear agent
    Patent number: 5958124
    Abstract: Disclosed is a rotogravure or flexographic printing ink composition, comprising(A) an ink comprising a pigment dispersed in a fluid vehicle, said vehicle comprising resin incorporated into an aqueous or non-aqueous solvent or a mixture of such solvents; and(B) a wear reducing amount of a metal dihydrocarbyl dithiophosphate of the formula ##STR1## wherein R.sup.1 and R.sup.2 are each independently hydrocarbyl groups containing from 3 to about 30 carbon atoms, M is a metal and a is an integer equal to the valence of M.
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: September 28, 1999
    Assignee: The Lubrizol Corporation
    Inventors: John S. Perz, Steven L. Rotz