Patents by Inventor Paola Canova

Paola Canova 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).

  • Stabiliser composition for polypropylene, comprising triazine compounds containing piperidine groups, and metal compounds
    Patent number: 5180762
    Abstract: The present invention relates to a stabiliser composition for polypropylene, comprising:A) one or more triazine compounds containing groups of the formula (I) in which R is hydrogen, C.sub.1 -C.sub.4 alkyl, O.cndot., OH, C.sub.1 -C.sub.8 alkoxy, C.sub.5 -C.sub.8 cycloalkoxy, C.sub.3 -C.sub.6 alkenyl, C.sub.7 -C.sub.9 phenylalkyl or C.sub.1 -C.sub.8 acyl, andB) one or more oxides and hydroxides of Mg, Ca, Ba, Zn, Al and Sn, preferably Mg and Zn.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: January 19, 1993
    Assignee: Ciba-Geigy Corporation
    Inventor: Paola Canova