Ultra-fine-grained thermoplastics

Details Ultra-fine-grained thermoplastics Ultra-fine-grained thermoplastics

1999-03-05

2000-07-18

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...

524436, 524437, 524430, C08J 510, C08K 326, C08L 2300

Patent

active

060908785

ABSTRACT:
Ultra-fine-grained thermoplastics such as polyolefins, for example, having an average particle size D.sub.50 of less than 400 .mu.m and are present in a mixture along with a filler where the amount of filler material in the mixture amounts to 40 to 90% with respect to the mixture. As such ultra-fine-grained thermoplastics cannot be obtained by means of the normal milling process of if so then only with considerable expenditure, the process for manufacturing ultra-fine-grained thermoplastics is performed in such a manner that a mixture containing 10 to 60 wt. % thermoplastics with respect to the mixture and 40 to 90 wt. % filler material with respect to the mixture is ground e.g. in an impact pulverizer, as a result of which thermoplastic particles with an average particle size D.sub.50 less than 400 .mu.m are produced.

REFERENCES:
patent: 5091508 (1992-02-01), Khanna et al.

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