METHOD FOR GRANULATING POLYAMIDE OR POLYAMIDE COMPOSITION
    2.
    发明公开
    METHOD FOR GRANULATING POLYAMIDE OR POLYAMIDE COMPOSITION 审中-公开
    VERFAHREN ZUR GRANULIERUNG VON POLYAMID ODER EINER POLYAMIDZUSAMMENSETZUNG

    公开(公告)号:EP3101054A4

    公开(公告)日:2017-09-06

    申请号:EP15743830

    申请日:2015-01-08

    摘要: The present invention provides a method for granulating a polyamide or a polyamide composition, whereby it becomes possible to granulate even a polyamide that has such a melt viscosity that the polyamide cannot be pelletized into a strand-like shape easily. In the present invention, a polyamide, whose melt viscosity at glass transition temperature + 160°C and a shear rate of 100s -1 is 3Pa·s to 200Pa·s and whose terminal amino group concentration is 5µeq/g to 70µeq/g, is melted by heating to a range of glass transition temperature + 160°C to glass transition temperature + 180°C of the polyamide, and then is solidified by dropping the molten polyamide in the form of granules onto a metallic belt, thereby producing granules.

    摘要翻译: 本发明提供一种使聚酰胺或聚酰胺组合物造粒的方法,由此甚至可以容易地制成具有聚酰胺不能造粒成线状形状的熔体粘度的聚酰胺。 在本发明中,聚酰胺的玻璃化转变温度为+ 160℃,剪切速度为100s -1时的熔融粘度为3Pa·s〜200Pa·s,末端氨基浓度为5μeq/ g〜70μeq/ g, 通过加热熔融到聚酰胺的玻璃化转变温度+ 160℃至玻璃化转变温度+ 180℃的范围内,然后通过将熔融聚酰胺以颗粒形式滴落到金属带上而固化,从而产生颗粒。