Aromatic diamine and polyimde, and preparation process of same
申请人:MITSUI TOATSU CHEMICALS, Inc.
公开号:EP0565352A2
公开(公告)日:1993-10-13
This invention relates to fluorine containing polyimide, a novel aromatic diamine which has a perfluoroalkyl radical and can be used as a raw material monomer of the polyimide, and a process for preparing the same.
The polyimide comprise a requisite structural unit having one or more recurring structural units of the formula :
such as the structural units of the formula
Further, the present invention relates to a novel aromatic diamine which has a perfluoro radical and can be used as a raw material monomer of the polyimide, and a process for preparing the same.
The present invention can provide polyimide which has an extremely low dielectric constant and is colorless, transparent and excellent in processability and heat resistance, and also provides an aromatic diamine which is useful as a raw material monomer of the polyimide or a raw material of other various engineering plastics.
This invention relates to a novel thermoplastic and amorphous polyimide which is readily soluble in organic solvent, a novel aromatic diamino compound used for the polyimide, and a preparation process thereof.
The polyimide comprise a requisite structural unit having one or more recurring structural units of the formula:
wherein m and n are individually an integer of 0 or 1, and R is
The polyimide of the invention is essentially amorphous, excellent in melt flow stability in the decreased temperature as compared with conventionally known polyimide and has greatly improved processability.
The polyimide of the invention obtained by using a novel aromatic diamino compound as a monomer can control various properties such as melt flow ability and solubility in solvents by side chains and not by principal chain of polyimide. Thus, excellent melt flow property and solubility in solvents can be obtained while maintaining high heat resistance and adhesive property which are derived from benzophenone structure of the diamino compound of the the invention.
本发明涉及一种易溶于有机溶剂的新型热塑性无定形聚酰亚胺、一种用于聚酰亚胺的新型芳香族二氨基化合物及其制备工艺。
该聚酰亚胺包括一个必要的结构单元,该结构单元具有一个或多个式中的重复结构单元:
其中 m 和 n 分别是 0 或 1 的整数,R 是
本发明的聚酰亚胺基本上是无定形的,与传统已知的聚酰亚胺相比,在温度降低时熔体流动稳定性极佳,而且加工性能大大提高。
使用新型芳香族二氨基化合物作为单体得到的本发明聚酰亚胺可以通过侧链而不是聚酰亚胺的主链来控制熔体流动能力和在溶剂中的溶解度等各种性能。因此,在保持本发明二氨基化合物的二苯甲酮结构所产生的高耐热性和粘合性的同时,还能获得优异的熔体流动性能和在溶剂中的溶解性。
Polyimide-based resin composition
申请人:MITSUI TOATSU CHEMICALS, Inc.
公开号:EP0639621A2
公开(公告)日:1995-02-22
The present invention relates to a polyimide-based resin composition comprising a thermoplastic polyimide having good solubility in general purpose organic solvents and a fibrous reinforcement such as carbon fiber, glass fiber, aromatic polyamide fiber and/or a potassium titanate fiber, a process for preparing the resin composition and an injection molded article of the resin composition, and further relates to a polyimide-based composite obtained by molding the above soluble and thermoplastic polyimide in combination with a fibrous reinforcement and a process for molding the same.
The polyimide used for the invention can be applied as a surface modifier for the fibrous reinforcement particularly in the form of a solution and provide a fibrous reinforcement having a surface modified with the above polyimide.
Optical component and spirobiindan polymer therefor
申请人:MITSUI TOATSU CHEMICALS, INCORPORATED
公开号:EP0822545A2
公开(公告)日:1998-02-04
There is provided a low-birefringent organic optical component comprising a polymer prepared by polymerizing a racemic mixture of the monomer with an asymmetric spiro ring represented by general formula (1) as an essential ingredient;
wherein ring A represents a monocyclic or polycyclic organic group, wherein two ring As are mutually bound each other via a spiro bond to form a spiro ring which has a molecular asymmetric structure; n is an integer of 0 to 10; X1 and Y1 are binding groups; Z1 is a polymerization-active group.
The component has excellent transparency, mechanical strength and heat resistance, as well as a low birefringence.
本发明提供了一种低双折射有机光学元件,其包含一种聚合物,该聚合物是通过聚合以通式(1)为代表的不对称螺环为基本成分的单体外消旋混合物而制备的;
其中,环 A 代表单环或多环有机基团,两个环 As 通过螺键相互结合形成具有分子不对称结构的螺环;n 为 0 至 10 的整数;X1 和 Y1 为结合基团;Z1 为聚合活性基团。
该成分具有出色的透明度、机械强度和耐热性,以及较低的双折射。
An organic optical component
申请人:MITSUI TOATSU CHEMICALS, INCORPORATED
公开号:EP0826717A1
公开(公告)日:1998-03-04
There is disclosed an organic optical component prepared from a resin essentially comprising one or more repetitive structural units selected from the group consisting of structures represented by general formula (1);
wherein A is either of the groups below.
This invention provides an organic optical component with excellent transparency, heat resistance and mechanical strength as well as a low birefringence. This invention also provides a novel aromatic polyamide with a low permitivity and excellent transparency, processability and thermal stability, besides excellent heat resistance inherent in an aromatic polyamide.
本发明公开了一种有机光学元件,由基本上包含一个或多个重复结构单元的树脂制备而成,这些重复结构单元选自由通式(1)所代表的结构组成的组;
其中 A 为以下任一基团。
本发明提供了一种具有优异透明度、耐热性和机械强度以及低双折射的有机光学元件。本发明还提供了一种新型的芳香族聚酰胺,除了具有芳香族聚酰胺固有的优异耐热性外,还具有较低的容许率和优异的透明度、加工性和热稳定性。