专利名称：LASER MARKABLE MATERIALS COMPRISING
水笔画顺序怎么写A POLYAMIDE COMPONENT AND CARBON关于扶贫的作文
人的起源BLACK
发明人：Huifeng YU,Jianmin Yang,Fei Teng,Florian
Hermes,Rainer Göring,Chenyu Ye
申请号：US17250084
申请日：20180525
里的笔顺笔画
公开号：US20210213717A1
公开日：
20210715
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专利附图：
摘要：A lar markable polymer composite contains (a) a polyamide component as the matrix and (b) carbon black as a lar-nsitive additive. The polyamide component has, bad on the total weight thereof, at least 50 wt % a poly amide lected from a linear aliphatic polyamide (a1) or (a2), a cycloaliphatic polyamide (a3), a mi-aromatic
polyamide (a4) or (a5), and the compound or copolymer thereof. The carbon black is prent in an amount of 50-300 ppm, bad on the total weight of the polymer composite. The composite results in better chemical resistance than conventional polycarbonate as the matrix, in addition to a desired quality of lar marking, specifically sharpness and resolution. This composite can also be ud for a moulded article made of the lar markable polymer composite, a layered structure with at least one layer made of the lar markable polymer composite, and a curity and/or valuable document with the layered structure.
申请人：Evonik Operations GmbH,Evonik Specialty Chemicals (Shanghai) Co., Ltd.
地址：Esn DE,Shanghai CN
嫁衣歌词>五价
国籍：DE,CN
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