Method of making polyimide foam precursor
    2.
    发明公开
    Method of making polyimide foam precursor 失效
    一种用于生产聚酰亚胺泡沫前体的过程。

    公开(公告)号:EP0141481A2

    公开(公告)日:1985-05-15

    申请号:EP84302921.6

    申请日:1984-05-01

    摘要: Methods of making low density modified polyimide! polyimide-amide foams and the resulting compositions. An N-substituted aliphatic imide is prepared by reacting a suitable aromatic dianhydride with a suitable oxime. A polyimide forming material is prepared by dissolving the N-substituted aliphatic imide in an esterifying solvent, then adding a suitable aromatic diamine. This material is dried to a powder. A suitable hydrated compound which is stable up to at least about 100°C. is mixed with the powder. A foam is then produced by heating the material to reaction temperature for a period sufficient to produce a stable foam. The material melts, then spontaneously expands into a foam which becomes self supporting and cures to a resilient flexible foam. The addition of the hydrated compound is found to result in an exceptionally low density foam. Depending upon heating conditions, a polyimide, polyimide- amide or mixture thereof may be produced, resulting in foams having selectively variable physical properties.

    Method of making bisimide coating compositions
    3.
    发明公开
    Method of making bisimide coating compositions 失效
    制备双组分涂料组合物的方法

    公开(公告)号:EP0191966A3

    公开(公告)日:1988-09-28

    申请号:EP85303096

    申请日:1985-05-01

    CPC分类号: C08G73/14

    摘要: A method of making a bisimide coating composition comprises:
    (a) mixing at least one lactam and/or amino acid (component A) with at least one dianhydride (component B) in a mole ratio of A:B of from 0.01:1 to 10:1 to form an N,N'-disubstituted bisimide dicarboxylic acid, (b) dissolving the product from step (a) in a water-miscible solvent, (c) mixing water with the solution from step (b) to form a solution comprising from 10% to 80% by weight of water, (d) mixing at least one aromatic diamine (component C) with the solution from step (c), and (e) mixing at least one tertiary amine (component D), in an amount of from 2% to 20% by weight based on the water added in step (c), with the solution from step (d) to give the coating composition.

    Method of making bisimide coating compositions
    4.
    发明公开
    Method of making bisimide coating compositions 失效
    Verfahren zur Herstellung von Bisimid-Überzugsmischungen。

    公开(公告)号:EP0191966A2

    公开(公告)日:1986-08-27

    申请号:EP85303096.3

    申请日:1985-05-01

    CPC分类号: C08G73/14

    摘要: A method of making a bisimide coating composition comprises:

    (a) mixing at least one lactam and/or amino acid (component A) with at least one dianhydride (component B) in a mole ratio of A:B of from 0.01:1 to 10:1 to form an N,N'-disubstituted bisimide dicarboxylic acid,
    (b) dissolving the product from step (a) in a water-miscible solvent,
    (c) mixing water with the solution from step (b) to form a solution comprising from 10% to 80% by weight of water,
    (d) mixing at least one aromatic diamine (component C) with the solution from step (c), and
    (e) mixing at least one tertiary amine (component D), in an amount of from 2% to 20% by weight based on the water added in step (c), with the solution from step (d) to give the coating composition.

    摘要翻译: 制备双酰亚胺涂料组合物的方法包括:(a)将至少一种内酰胺和/或氨基酸(组分A)与至少一种二羧酸(组分B)以摩尔比A:B混合为0.01:1 (b)将来自步骤(a)的产物溶于水混溶性溶剂中,(c)将水与步骤(b)的溶液混合, 以形成包含10重量%至80重量%的水的溶液,(d)将至少一种芳族二胺(组分C)与步骤(c)的溶液混合,和(e)将至少一种叔胺 (组分D),相对于步骤(c)中添加的水,其含量为2重量%至20重量%,得到涂料组合物。

    Method of making polyimide foams
    6.
    发明公开
    Method of making polyimide foams 失效
    Verfahren zur Herstellung vonPolyimidschäumen。

    公开(公告)号:EP0192869A2

    公开(公告)日:1986-09-03

    申请号:EP85303940.2

    申请日:1985-06-04

    IPC分类号: C08J9/02 C08L79/08 C08G73/10

    摘要: A method of making a resilient, flame resistant, non-friable polyimide foam comprises:

    (a) mixing at least one aromatic dianhydride with an alcohol and heating the resulting mixture to form a half-ester,
    (b) mixing a diamine component comprising at least one aliphatic diamine and at least one aromatic diamine with the product from step (a),
    (c) drying the resulting mixture, and
    (d) heating the resulting solid to give a polyimide foam.

    摘要翻译: 一种制备弹性,阻燃,不易碎聚酰亚胺泡沫的方法包括:(a)将至少一种芳族二酐与醇混合并加热得到的混合物以形成半酯,(b)将二胺组分 包括至少一种脂族二胺和至少一种芳族二胺与来自步骤(a)的产物,(c)干燥所得混合物,和(d)加热得到的固体,得到聚酰亚胺泡沫。

    Modified polyimides; production thereof, bonding therewith and production of composite articles therefrom
    8.
    发明公开
    Modified polyimides; production thereof, bonding therewith and production of composite articles therefrom 失效
    改性聚酰亚胺; 其生产和复合材料制品的粘接和制造。

    公开(公告)号:EP0143127A1

    公开(公告)日:1985-06-05

    申请号:EP83307240.8

    申请日:1983-11-28

    IPC分类号: C08G73/10 C09J3/16 B32B7/00

    摘要: Modified polyimide coatings and adhesives useful for high efficiency bonding at moderate temperatures. Basically, the coatings and adhesives are prepared by reacting suitable quantities of an oxime, and one or more aromatic tetracarboxylic acid dianhydrides, dissolving or esterifying the resulting bisimide with a reactive solvent esterifying agent and mixing therewith a suitable diamine. This polyimide may be dried to a selected viscosity before or after coating onto one or both surfaces to be bonded together. When the surfaces are heated for a suitable period at a temperature in the range or about 230 to 320 °C an excellent, flexible coating is obtained, or when coated surfaces are pressed together under moderate pressure a high peel strength bond with excellent resistance to high temperatures results.

    摘要翻译: 改性聚酰亚胺涂层和用于在中等温度结合高效率有用的粘合剂。 基本上,涂层和粘合剂是通过使肟,和一种或多种芳族四羧酸二酐的量合适,溶解或与反应性溶剂酯化剂酯化所得的双酰亚胺和用合适的二胺的混合有制备。 该聚酰亚胺前或涂覆到一个或两个表面被粘结在一起之后进行干燥,以所选择的粘度。 当表面被加热一段适当的时间在该范围内的温度或约230至320℃的优良的,柔性的涂层获得,或者当涂覆表面在中等压力下压在一起高剥离强度粘合具有高优异的耐 温度的效果。

    Polyimides
    9.
    发明公开
    Polyimides 失效
    聚酰亚胺。

    公开(公告)号:EP0048080A2

    公开(公告)日:1982-03-24

    申请号:EP81303041.8

    申请日:1981-07-03

    IPC分类号: C08G73/10

    摘要: Terpolyimides are prepared from tetracarboxylic acid esters and combinations of heterocyclic, aromatic, and aliphatic diamines. Precursors, and methods of converting them to the corresponding terpolymers are described. The terpolyimides are useful as foams.

    摘要翻译: 三聚酰亚胺由四羧酸酯和杂环芳族和脂族二胺的组合制备。 描述了前体和将它们转化成相应的三元共聚物的方法。 三聚酰亚胺可用作泡沫。