ABS = Acrylonitrile–Butadiene-Styrene copolymer

ABS is one type of Engineering plastics (工程塑料)

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Note added at 1 day11 hrs (2006-04-05 23:18:43 GMT)
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See http://www.freepatentsonline.com/4902749.html

EXAMPLE 1

13.3 parts of the modified ABS pellets were mixed with 26.7 parts of the virgin ABS (Blendex.RTM. 201) and 60 parts of amine terminated nylon 6 (formic acid viscosity=58; [amine]=72 meq g.sup.-1) and the blend was re-extruded on the twin-screw extruder at 230.degree. C. and a throughput rate of 20 lbs/hr. The blend extrudate was cooled, pelletized and dried.


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Note added at 1 day18 hrs (2006-04-06 06:25:43 GMT)
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"Pellets of modified ABS engineering plastics" should be ok. ABS pellets are made from ABS powders on a machine called extruder pelletizer (挤压造粒机).
1970年代初，我在兰州化学工业公司合成橡胶厂的丁苯橡胶车间工作。该车间有一套我国自行开发的ABS生产装置。这是中国的第一套ABS生产装置。我们用丁苯橡胶掺入ABS以生产改性ABS。当时的产品主要用于生产探雷器无法探测的地雷外壳。1980年代初，该厂从日本引进了一套ABS生产装置。