Method for treating a talc powder with a view to incorporating i

Details Method for treating a talc powder with a view to incorporating i Method for treating a talc powder with a view to incorporating i

1996-06-18

1998-10-27

Seidleck, James J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

264148, 264109, C08J 510, C08K 334, C08L 2902

Patent

active

058279172

ABSTRACT:
Method of incorporation a talcum powder into a material, in particular a thermoplastic material. The method consists in (a) mixing the talcum powder with water and a polyethylene glycol, a polypropylene glycol or a copolymer of these compounds, (b) pressing the mixture through dies and sectioning it to obtain granules of an average size exceeding that of the grains of the initial powder, (c) incorporating in the material the product obtained, (d) subjecting the dispersion to mechanical action to break up the granules and to release and distribute in the mass the grains of the initial powder. The invention is characterized by incorporating small particle-sized talcum powders into materials, especially thermoplastic materials, without the practical problem involved in incorporating small particle-sized powders.

REFERENCES:
patent: 4241001 (1980-12-01), Lamond et al.
patent: 4814019 (1989-03-01), Weber
patent: 5176751 (1993-01-01), Findley

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