Patents by Inventor Janice L. Haldeman

Janice L. Haldeman 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).

  • Stabilizer for low ammonia natural rubber latex compounds
    Patent number: 4455265
    Abstract: The chemical stability of low ammonia natural rubber latices and latex compounds is improved by the addition of from 0.1 to 0.5 parts by weight solids, per 100 parts by weight of natural rubber solids, of a neutralized or partially neutralized anionic phosphate surfactant having a pH in a 20 percent aqueous solution of from 4 to 12. The resultant stabilized natural rubber latices or latex compounds are particularly suitable for use in preparing prevulcanized dipping compounds.
    Type: Grant
    Filed: March 3, 1982
    Date of Patent: June 19, 1984
    Assignee: The Firestone Tire & Rubber Company
    Inventor: Janice L. Haldeman