Patents Represented by Attorney B. C. Cadenhead
  • Patent number: 4144213
    Abstract: Organic amides, solutions of polymers thereof, which polymers are subject to hydrolysis and degradation in the presence of amines, and polymers isolated therefrom are stabilized by the presence of aromatic sulfonic acid esters of aliphatic, arylaliphatic and alicyclic alcohols and polyols.
    Type: Grant
    Filed: May 17, 1977
    Date of Patent: March 13, 1979
    Assignee: Exxon Research & Engineering Co.
    Inventor: Tad L. Patton
  • Patent number: 4113806
    Abstract: A polypropylene impact blend having a good overall balance of mechanical properties, particularly high impact strength, and surprisingly high clarity is disclosed which includes about 70 to about 90% by weight of a polypropylene, about 1 to about 18% by weight of a low density polyethylene and about 2 to about 24% by weight of an amorphous ethylene-propylene copolymer elastomer, with or without a non-conjugated diene, having a high combined ethylene content. The polypropylene impact blends are useful for making molded or extruded shaped articles and the like which are essentially clear.
    Type: Grant
    Filed: August 30, 1976
    Date of Patent: September 12, 1978
    Assignee: Exxon Research & Engineering Co.
    Inventors: Albert T. Watson, Robert L. Hull