Process for manufacturing thermoplastic materials containing inorganic particulates
OwnerDaniel Craig, Jeffrey Elliott +2inventors
InventorsDaniel Craig, Jeffrey Elliott, George Perakis, Harmon Ray
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Abstract
Processes are disclosed for treating an inorganic particulate to provide improved dispersibility in a thermoplastic, for example, titanium dioxide as an opacifier or colorant in a polyolefin concentrate, and for producing said pigmented thermoplastic, wherein a surface coating is deposited on the particulate which comprises at least one N,N,N-trialkyl quaternary amino acid inner salt.
Claims10
A process for improving the dispersibility of an inorganic particulate in a thermoplastic, comprising depositing a surface coating on the particulate including at least one N,N,N-trialkyl quaternary amino acid inner salt.
A process for manufacturing an inorganic particulate-containing thermoplastic, comprising a) depositing a surface coating on an inorganic particulate which comprises at least one N,N,N-trialkyl quaternary amino acid inner salt, and b) intimately mixing said treated inorganic particulate with a thermoplastic material under temperature conditions wherein the thermoplastic is at least partially melted for the duration of the mixing step.
Dependencies are inferred from the claim text.