Patents by Inventor Walter Robert Wszolek

Walter Robert Wszolek 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).

  • Plastisol composition and container closure gasket made therefrom
    Patent number: 4093098
    Abstract: A plastisol composition containing as the resin component a copolymer of a normal .alpha.-olefin and maleic anhydride (1:1 mole ratio) having the structure ##STR1## WHEREIN B is a member of the group consisting of ##STR2## and the hydrolysis product thereof, ##STR3## R is H or C.sub.x H.sub.2x+1, x is 1 to 16 and n is 2-300, and a plasticizer for said resin component. The plastisol when fluxed can be used as a closure gasket for containers.
    Type: Grant
    Filed: January 10, 1977
    Date of Patent: June 6, 1978
    Assignee: W. R. Grace & Co.
    Inventor: Walter Robert Wszolek
  • Plastisol composition and container closure gasket made therefrom
    Patent number: 4093097
    Abstract: A plastisol composition containing as the resin component a copolymer of a normal .alpha.-olefin and maleic anhydride (1:1 mole ratio) having the structure ##STR1## WHEREIN B is a member of the group consisting of ##STR2## and the hydrolysis product thereof, ##STR3## R is H or C.sub.x H.sub.2x+1, x is 1 to 16 and n is 2-300, and a plasticizer for said resin component. The plastisol when fluxed can be used as a closure gasket for containers.
    Type: Grant
    Filed: January 10, 1977
    Date of Patent: June 6, 1978
    Assignee: W. R. Grace & Co.
    Inventor: Walter Robert Wszolek