Patents by Inventor Pietro Paparatto

Pietro Paparatto 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).

  • Moulding compositions including a mixture of two polyesters
    Patent number: 4263195
    Abstract: Moulding composition comprising from 10 to 50% by weight of a mixture of a first polyester obtained by polycondensation of an alkylene glycol with maleic and/or fumaric acid and a second polyester obtained by polycondensation of an alkylene glycol with an aromatic dicarboxylic acid or a mixture thereof with maleic and/or fumaric acid, the first polyester being present in an amount of from 5 to 50 parts by weight for each 100 parts by weight of the sum of the first and second polyesters, from 0.2 to 2% by weight of an organic peroxide having a decomposition temperature above 70.degree. C., and one or more inert fillers.The composition can be formed into free-flowing granules, free from a tendency to agglomerate, and can be moulded by injection moulding like thermoplastic materials.
    Type: Grant
    Filed: May 1, 1979
    Date of Patent: April 21, 1981
    Assignee: Euteco S.p.A.
    Inventors: Silvio Vargiu, Pietro Paparatto, Antonio Parodi