Patents by Inventor Christian G. Lenoble

Christian G. Lenoble 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).

  • Road paving binders
    Patent number: 5627225
    Abstract: This invention provides for novel road paving binder compositions and the method of making them. One embodiment is a road paving binder composition of a storage stable blend of a sulfonated, unhydrogenated random copolymer of styrene and butadiene having a sulfonation level of from 1 to 100 meq S0.sub.3 H/100 g of polymer and a sulfonated asphalt. Another is a method of making a storage stable polymer modified asphalt composition by combining a sulfonated unhydrogenated random styrene butadiene copolymer having a sulfonation level of from about 1 to 100 meq S0.sub.3 H per 100 g of polymer and a sulfonated asphalt at a temperature of at least about 180.degree. C. to produce a storage stable polymer modified asphalt. Yet another is a method of making a storage stable polymer modified asphalt by combining a sulfonated unhydrogenated random styrene and butadiene copolymer having a sulfonation level of from about 1 to 100 meq S0.sub.
    Type: Grant
    Filed: October 31, 1995
    Date of Patent: May 6, 1997
    Assignee: Exxon Research and Engineering Company
    Inventors: Martin L. Gorbaty, Christian G. Lenoble, Nicholas C. Nahas, Dennis G. Peiffer