Patents by Inventor P. Stuart Bollen

P. Stuart Bollen 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).

  • Process to produce sheet molding compound using a polyamide release film
    Patent number: 4568505
    Abstract: Disclosed is a polyamide film of low crystallinity suitable for use in the manufacture of sheet molding compound (SMC). The sheet is produced from a blend comprising a polyamide selected from the group consisting of polyepsiloncaprolactam, polyhexamethylene adipamide or mixtures thereof, and about 10 to 30 wt. %, based on the total weight of said blend, of a polyolefin compound, or copolymer thereof, such as ethylene-vinyl acetate copolymer. The film has a tear strength of at least about 400 grams in the longitudinal direction as measured by ASTM D-1004-66.
    Type: Grant
    Filed: January 23, 1984
    Date of Patent: February 4, 1986
    Assignee: Allied Corporation
    Inventors: P. Stuart Bollen, Alfieri Degrassi, William Sacks
  • Polyamide release film for sheet molding compound
    Patent number: 4444829
    Abstract: Disclosed is a polyamide film of low crystallinity suitable for use in the manufacture of sheet molding compound (SMC). The sheet is produced from a blend comprising a polyamide selected from the group consisting of polyepsiloncaprolactam, polyhexamethylene adipamide or mixtures thereof, and about 10 to 30 wt. %, based on the total weight of said blend, of a polyolefin compound, or copolymer thereof, such as ethylene-vinyl acetate copolymer. The film has a tear strength of at least about 400 grams in the longitudinal direction as measured by ASTM D-1004-66.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: April 24, 1984
    Assignee: Allied Corporation
    Inventors: P. Stuart Bollen, Alfieri Degrassi, William Sacks