会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Process for preparing a pigmented polyimide shaped article
    • 制备着色聚酰亚胺成型制品的方法
    • US5302652A
    • 1994-04-12
    • US991524
    • 1992-12-15
    • Darrell J. Parish
    • Darrell J. Parish
    • C08G73/10C08J5/00C08K9/08C08L79/08C08K3/04C04B35/00C08K9/04
    • C08K9/08
    • A process for preparing a pigmented polyimide article having a polyimide matrix with finely divided pigment particles uniformly dispersed therein. The process includes the steps of milling pigment particles in an organic solvent, pre-wetting the pigment particles with a thermoplastic polyamic acid precursor derived from 4,4'-oxydiphthalic dianhydride and an aromatic and/or aliphatic diamine, admixing the treated pigment particles with a polyamic acid polymerization mixture to form a dope, shaping the dope and thermally or chemically converting the shaped dope into a polyimide article containing the pigment particles uniformly dispersed therein.
    • 一种制备着色聚酰亚胺制品的方法,该聚酰亚胺制品具有聚酰亚胺基体,其中分散有均匀分散的细颗粒颜料颗粒。 该方法包括以下步骤:将颜料颗粒研磨在有机溶剂中,用衍生自4,4'-氧联二邻苯二甲酸二酐的芳族和/或脂族二胺的热塑性聚酰胺酸前体预润湿颜料颗粒,将经处理的颜料颗粒与 聚酰胺酸聚合混合物以形成涂料,成形该涂料,并将成形的涂料热或化学转化成含有均匀分散在其中的颜料颗粒的聚酰亚胺制品。