Patents by Inventor Robert MacFarlane, Jr.

Robert MacFarlane, Jr. 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).

  • Mineral-filled nylon molding compositions exhibiting low creep
    Patent number: 4131591
    Abstract: Polyamide molding compositions comprising a polyamide resin, about 5 to 40 percent by weight, based on the total weight of the compositions, of talc in the form of platy fine particles having a surface are of about at least about 7.sup.2 m /g; about 2 to 40 percent by weight, based on the total weight of the composition, of wollastonite; and about 5 to 25 percent by weight, based on the total weight of the composition, of fiber glass. Preferably, about 0.1 to 4 weight percent, based on the weight of the wollastonite, of a coupling agent is present. These molding compositions are capable of providing molded articles having a creep slope of .ltoreq.0.15 percent strain per log time.
    Type: Grant
    Filed: August 29, 1977
    Date of Patent: December 26, 1978
    Assignee: Allied Chemical Corporation
    Inventor: Robert MacFarlane, Jr.