Patents Represented by Attorney Bryan LLP Cave

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  • Propylene polymer and copolymers grafted with vinylpolybutadiene and their preparation process
    Patent number: 5541262
    Abstract: Crystalline propylene (co)polymers modified by grafting with a vinylpolybutadiene having 1,2-structure content of at least l0%.The (co)polymers are reacted with a liquid vinylpolybutadiene in the presence of a non-peroxidic radical initiator at a temperature in the range 200.degree. to 350.degree. C., the liquid vinylpolybutadiene having a 1,2-structure content of at least 10% and being generally used in amounts within the range 0.5 to 20% by weight.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: July 30, 1996
    Assignee: Centro Sviluppo Settori Impiego S.r.l.
    Inventors: Corrado Brichta, Francesco Mascia, Amodio Di Somma, Gabriele Torregiani, Antonio Addeo