Method of preparing a soluble high molecular weight aromatic polyamide imide composition
    2.
    发明授权
    Method of preparing a soluble high molecular weight aromatic polyamide imide composition 失效
    制备可溶高分子量芳族聚酰胺酰亚胺组合物的方法

    公开(公告)号:US3860559A

    公开(公告)日:1975-01-14

    申请号:US33487673

    申请日:1973-02-22

    CPC classification number: C08G73/14

    Abstract: A soluble solution of high molecular weight aromatic polyamide imide composition, having a degree of imidization of at least about 95%, is obtained directly in a one step heating process by reacting, at 200*-350*C, certain aromatic tricarboxylic acid and aromatic diamines with phosphorus compound as catalyst in a selected solvent, at a reactant concentration of 40-90%, and then diluting the reaction media with additional solvent as the reaction progresses.

    Abstract translation: 直接在一步加热过程中通过在200-350℃下使某些芳香族三羧酸和芳香族三羧酸反应获得具有至少约95%酰亚胺化度的高分子量芳族聚酰胺酰亚胺组合物的可溶解溶液 在选择的溶剂中用磷化合物作为催化剂二胺,反应物浓度为40-90%,然后随着反应进行,用另外的溶剂稀释反应介质。

    Polyimide solution and method of preparing same
    3.
    发明授权
    Polyimide solution and method of preparing same 失效
    聚酰亚胺溶液及其制备方法

    公开(公告)号:US3673145A

    公开(公告)日:1972-06-27

    申请号:US3673145D

    申请日:1969-09-02

    CPC classification number: C08J3/091 C08J2379/08

    Abstract: Novel polyimide solutions are provided which are obtained by reacting 1,2,3,4-butane tetracarboxylic acid or a functional derivative thereof with an organic diamine for example an aromatic diamine such as diaminodiphenyl ether in certain reaction solvents for example phenols, nitrobenzenes, pyridines, quinolines, N-alkyl lactams and cyanobenzenes at a temperature of from 100* C. to the boiling point of the reaction mixture until a polyimide solution is obtained having an imidization ratio of 5098 percent is obtained. The products thus obtained can be employed as varnishes, to make film coating for electric cable, as adhesives or blended with pigments and the like to make pains.

    Abstract translation: 提供了通过使1,2,3,4-丁烷四羧酸或其官能衍生物与有机二胺例如二氨基二苯醚等芳族二胺在某些反应溶剂中反应而得到的新型聚酰亚胺溶液,例如苯酚,硝基苯,吡啶 ,喹啉,N-烷基内酰胺和氰基苯,在100℃至反应混合物的沸点,直至获得具有50-98%亚酰胺化率的聚酰亚胺溶液。 由此获得的产品可以用作清漆,制成电缆的薄膜涂层,作为粘合剂或与颜料等混合以产生疼痛。

    Thermally stable thermosetting resin
    4.
    发明授权
    Thermally stable thermosetting resin 失效
    热稳定型热固树脂

    公开(公告)号:US3669930A

    公开(公告)日:1972-06-13

    申请号:US3669930D

    申请日:1969-11-05

    CPC classification number: C08G73/121

    Abstract: The present invention provides a thermosetting resin excellent in thermal stability, mechanical properties and electrical properties which is obtained by reacting dimaleimide with an amide in molten state.

    Abstract translation: 本发明提供了通过使二马来酰亚胺与熔融状态的酰胺反应获得的热稳定性,机械性能和电性能优异的热固性树脂。

    7.
    发明专利
    未知

    公开(公告)号:DE1645525A1

    公开(公告)日:1970-12-17

    申请号:DE1645525

    申请日:1967-09-22

    Abstract: 1,203,603. Stabilizing polyethylene terephthalates. TORAY INDUSTRIES Inc. 5 July, 1967 [24 Sept., 1966; 15 April, 1967], No. 30995/67. Heading C3R. Polyesters in which the recurring units consist wholly or predominantly of ethylene terephthalate units are stabilized against heat and oxidation by adding to them from 0.001 to 5% of at least one nitrogen containing compound of formula (a) where R 1 is hydrogen, a C 1-10 hydrogen group or a C 1-10 hydroxyalkyl group, R 2 and R 3 are hydrogen or C 1-10 hydrocarbon groups and n is 1 or 2; (b) where R 1 , R 2 , R 3 and n are as above and R is a di- or tri-valent benzene ring group; (c) where R 4 is a C 1-10 hydrocarbon group, R 5 is hydrogen, a C 1-10 hydrocarbon group or an alkoxyaryl group containing 1-10 carbon atoms in the alkyl moiety, R 6 is an alkoxyaryl group containing 1-10 carbon atoms in the alkyl moiety, and X is hydrogen, a hydroxyl group or the group (d) where R 7 is an alkylene or alkenylene group or a 1,2 - phenylene or 1,8 - naphthalene group whose nuclei may be substituted (e.g. by alkyl, halogen, carboxyl, alkoxycarbonyl or hydroxyalkoxycarbonyl), R 8 is a hydrogen atom, an acyl group, a hydrocarbon group which may be substituted by a carboxy, hydroxyl, alkoxycarbonyl or hydroxyalkoxycarbonyl group and n is 1 or 2; (e) where R 9 and R 10 are hydrogen atoms, phenyl groups or C 1-10 alkyl groups; or (f) where R 1 and R 2 are as defined above, R 14 is hydrogen or a C 1-10 hydrocarbon group and m is 1, 2 or 3. The stabilizers may be added before or during the preparation of the polyester or to the final product.

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