申请人:Reith Walter
公开号:US20130005877A1
公开(公告)日:2013-01-03
The present invention relates to a process for producing a pelletized stabilizer mixture for halogen-containing plastics, comprising the following steps:
(a) heating, at from 40 to 100° C. in an extruder or kneader, a mixture comprising
(A) at least one lubricant,
(B) at least one substance having stabilizer activity, and
(C) auxiliaries and additives,
where at least 1% by weight of all of the substances, based on the total amount of the mixture, has a melting point below 100° C.,
(b) forcing the material through a pelletizing die,
(c) carrying out die-face pelletization under water,
(d) transporting the pelletized stabilizer mixture away in a stream of water,
(e) extracting the pelletized stabilizer mixture from the water, and
(f) drying the pelletized stabilizer mixture.
The present invention further relates to pelletized stabilizer mixtures producible therefrom, and also to use of these.
本发明涉及一种用于生产含卤素塑料的颗粒稳定剂混合物的工艺,包括以下步骤:(a)在挤出机或混合器中,在40至100℃下加热混合物,该混合物包括(A)至少一种润滑剂,(B)至少一种具有稳定剂活性的物质,以及(C)辅助剂和添加剂,在其中所有物质的重量百分比,基于混合物的总量,至少有1%的物质的熔点低于100℃,(b)将材料通过颗粒化模具强制压制,(c)在水下进行模面颗粒化,(d)在水流中将颗粒稳定剂混合物运送走,(e)从水中提取颗粒稳定剂混合物,以及(f)干燥颗粒稳定剂混合物。本发明还涉及由此可制备的颗粒稳定剂混合物,以及其使用。