Patents by Inventor Roberto Frigo

Roberto Frigo 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).

  • Patent number: 5116412
    Abstract: An internal mould release composition comprising:a) from 5% to 95% by weight of a metal salt of an organic acid, said metal salt having mould release properties andb) from 5% to 95% by weight of a polyol and wherein the metal salt is in the form of homogenously dispersed solid particles having a diameter of up to 200.mu..
    Type: Grant
    Filed: June 26, 1991
    Date of Patent: May 26, 1992
    Assignee: Imperial Chemical Industries PLC
    Inventors: Roberto Frigo, Gian-Carlo Bagaglio
  • Patent number: 5034427
    Abstract: A method to prepare polyurethane and/or polyurea flexible foams which comprises reacting:A. an organic polyisocyanate compositionB. an isocyanate-reactive composition containing:a. at least one high Mw isocyanate-reactive compoundb.sub.1. a primary or secondary amino-functional compound (so-called chain-extender) of Mw below 1000 in an amount of less than 1% by wt of high Mw isocyanate-reactive compound(s) orb.sub.2. a mixture of at least two chain extenders of which at least one is a primary or secondary amino-functional compound of Mw below 1000, in an amount of 0.1% to 10% by wt of high Mw isocyanate-reactive compound(s)C. H.sub.2 OD. optionally catalystsE. optionally further blowing agents which are different from H.sub.2 O.F. optionally further conventional additives.
    Type: Grant
    Filed: November 22, 1989
    Date of Patent: July 23, 1991
    Assignees: Imperial Chemical Industries PLC, Atlas Europol SpA
    Inventors: Roberto Frigo, Gian-Carlo Bagaglio, Mireille De Witte, Gabriel Verhelst
  • Patent number: RE34669
    Abstract: A method to prepare polyurethane and/or polyurea flexible foams which comprises reacting:A. an organic polyisocyanate compositionB. an isocyanate-reactive composition containing:a. at least one high Mw isocyanate-reactive compoundb.sub.1. a primary or secondary amino-functional compound (so-called chain-extender) of Mw below 1000 in an amount of less than 1% by wt of high Mw isocyanate-reactive compound(s) orb.sub.2. a mixture of at least two chain extenders of which at least one is a primary or secondary amino-functional compound of Mw below 1000, in an amount of 0.1% to 10% by wt of high Mw isocyanate-reactive compound(s)C. H.sub.2 OD. optionally catalystsE. optionally further blowing agents which are different from H.sub.2 O.F. optionally further conventional additives.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: July 19, 1994
    Assignees: Imperial Chemical Industries PLC, Atlas Europol SpA
    Inventors: Roberto Frigo, Gian-Carlo Bagaglio, Gabriel Verhelst, Mireille De Witte