Aromatic diamine and polyimide, and preparation pr

专利名称：Aromatic diamine and polyimide, and

preparation process of same

发明人：Yamashita, Wataru,Sakata,

Yoshihiro,Kataoka, Toshiyuki,Okawa,Yuichi,Oikawa, Hideaki,Asanuma,Tadashi,Matsuo, Mitsunori,Ishida,

Tsutomu,Yamaguchi, Keizaburo,Yamaguchi,Akihiro

申请号：EP93302719.5申请日：19930407公开号：EP0565352B1公开日：19970730

摘要：This invention relates to fluorine containing polyimide, a novel aromatic diaminewhich has a perfluoroalkyl radical and can be used as a raw material monomer of thepolyimide, and a process for preparing the same. The polyimide comprise a requisitestructural unit having one or more recurring structural units of the formula: such as thestructural units of the formula Further, the present invention relates to a novel aromaticdiamine which has a perfluoro radical and can be used as a raw material monomer of thepolyimide, and a process for preparing the same. The present invention can providepolyimide which has an extremely low dielectric constant and is colorless, transparentand excellent in processability and heat resistance, and also provides an aromatic diaminewhich is useful as a raw material monomer of the polyimide or a raw material of othervarious engineering plastics.

申请人：MITSUI TOATSU CHEMICALS

地址：JP

国籍：JP

代理机构：Nicholls, Kathryn Margaret

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