Coated filler for a thermoplastic composition
AssigneeECC International Limited
InventorRobert P. Higgs
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Abstract
There is disclosed a thermoplastics composition comprising a thermoplastic polymer having incorporated therein a coated particulate inorganic material. The coating on the particles of the inorganic material comprises a combination of a natural or synthetic polymeric material and a wax having a melting point not higher than the melting point of the thermoplastics polymer, and the polymeric material is present in the coating in an amount of from 1% to 10% by weight, based on the weight of dry inorganic material. The improved thermoplastic composition of the invention may be used in making moulded components for automobiles.
Claims8
A process for preparing a coated particulate inorganic material for incorporation in a thermoplastics composition which comprises the steps of (a) combining in aqueous suspension, a particulate inorganic material, a wax and a natural or synthetic latex composition in an amount such as to provide a coating on the particles of the inorganic material of from 1% to 10% by weight of latex solids, based on the weight of dry inorganic material;
- and (b) dewatering and drying the suspension.
Dependencies are inferred from the claim text.