Patents Assigned to SIR Industriale S.p.A.
  • Cross-linking mixtures of beta-hydroxyalkylamide and compound of formula (II) and their use thereof
    Patent number: 6767479
    Abstract: Described herein are mixtures of cross-linking agents for the preparation of powder paints wherein the binder consists of polyester resins having free carboxyl groups. The cross-linking mixture itself comprises at least one Beta-hydroxyalkylamide compound having a Beta-hydroxy functional of 4 and at least one compound of formula (II) where R is linear or branched C2-C10 alkyl group having a Beta-hydroxy functionality of 2, wherein said cross-linked mixture has a mean Beta-hydroxy functionality of between 2.1 and 3.9.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: July 27, 2004
    Assignee: SIR Industriale S.p.A.
    Inventors: Pietro Paolo Rossi, Gino Marelli, Alberto Baldini
  • Crosslinkable polyester/isocyanate compositions suitable for preparing composite manufactured articles, in particular by means of injection processes, process for preparing them and their use
    Patent number: 5596021
    Abstract: The present invention relates to a crosslinkable polyester/isocyanate composition suitable for preparing composite manufactured articles endowed with high structural mechanical properties, by means of injection processes, comprising:A--a polyfunctional isocyanate;B--an unsaturated polyester resin, or a vinyl ester resin, or a mixture of both said resins, wherein said resin can contain free hydroxy groups;C--a free-radical polymerization initiator;D--a promoter of decomposition of (C) initiator;E--a catalyst of (A) isocyanate trimerization.
    Type: Grant
    Filed: September 15, 1994
    Date of Patent: January 21, 1997
    Assignee: Sir Industriale S.p.A.
    Inventors: Andrea Adembri, Lino Credali, Giovanni Di Drusco