Patents Examined by Kat. Wyrozebki-Lee
  • Color concentrate
    Patent number: 6646038
    Abstract: The present invention provides a new and improved color concentrate comprising from about 5% to about 20% by weight metal particles component, from about 1% to about 15% by weight colorant material and from about 60% to about 90% by weight thermoplastic polymer. The metal particles component comprises aluminum particles having an undefined configuration and an average particle size of from about 75 &mgr;m to about 150 &mgr;m. The concentrate can be utilized to color thermoplastic polymers and produce a high metallic effect.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: November 11, 2003
    Assignee: Ferro Corporation
    Inventor: Mir L. Ali