Color concentrate
AssigneeFerro Corporation
InventorMir L. Ali
Life of this patent
Estimating the term…
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 μm to about 150 μm. The concentrate can be utilized to color thermoplastic polymers and produce a high metallic effect.
Claims18
A color concentrate for coloring uncolored thermoplastic polymers and producing a high metallic effect, said concentrate comprising from about 7% to about 17% by weight metal particles component, from about 1% to about 10% by weight colorant material and from about 65% to about 85% by weight thermoplastic polymer, said metal particles component comprising aluminum particles having an undefined configuration and an average particle size of from about 75 to about 150 μm.
A method of forming a metal filled color concentrate for coloring thermoplastic polymers and producing a high metallic effect comprising the steps of:
- I. mixing at low intensity and low shear a mixture comprising from about 7% to about 17% by weight metal particles component, from about 1% to about 10% by weight colorant material and from about 65% to about 85% by weight thermoplastic polymer so as to form a premix;
- and
- II. melt mixing said premix of said step I in a low intensity and low shear melt mixer.
A method of forming a metal filled color concentrate for coloring thermoplastic polymers and producing a high metallic effect comprising the steps of:
- I. mixing at low intensity and low shear a mixture comprising from about 7% to about 17% by weight metal particles component, from about 1% to about 10% by weight colorant material and from about 30% to about 70% by weight powdered thermoplastic polymer so as to form a premix;
- and
- II. melt mixing said premix of said step I in a low intensity and low shear melt mixer.
Dependencies are inferred from the claim text.