Patents Assigned to Nova Petrochemicals Inc.
  • Sulfenyl chloride adducts of hydrogenated nitrile rubber
    Patent number: 5043394
    Abstract: The present invention provides an adduct of a hydrogenated nitrile rubber and a sulfenyl chloride.The adducts are characterized by having a surprisingly low level of gel, as determined by the amount of adduct which is insoluble in methyl ethyl ketone after 16 hours at 30.degree. C.The adducts may be vulcanized and used to prepare seals, gaskets or mechanical goods.
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: August 27, 1991
    Assignee: Nova Petrochemicals Inc.
    Inventor: Gilles J. Arsenault
  • Cyanate ester resin composition containing an epoxy/aromatic adduct
    Patent number: 5043411
    Abstract: The present invention generally relates to a thermosettable cyanate ester resin composition which contains a fortifier that is the reaction product of an epoxy and an aromatic reactant selected from an aromatic amine and an aromatic amide. Thermoset cyanate ester resin compositions of the present invention have improved flexural strength and/or flexural modulus. The compositions of the present invention may be used to prepare circuit boards or molded parts.
    Type: Grant
    Filed: May 14, 1990
    Date of Patent: August 27, 1991
    Assignee: Nova Petrochemicals Inc.
    Inventors: Kam W. Ho, Adrian Cassola