Process for preparing bisphenol sulfone derivatives
    43.
    发明授权
    Process for preparing bisphenol sulfone derivatives 失效
    制备双酚砜衍生物的方法

    公开(公告)号:US4287366A

    公开(公告)日:1981-09-01

    申请号:US128712

    申请日:1980-03-10

    CPC分类号: C07C315/02

    摘要: A process for preparing bisphenol sulfone derivatives represented by the general formula (I) ##STR1## where R stands for hydrogen, a halogen, an alkyl radical, a cycloalkyl radical, an aryl radical, an aralkyl radical, hydroxyl group, an alkoxy radical, allyloxy group, carboxyl group, or a carboalkoxy radical, m is an integer of from 1 to 3, and when m is 2 or more, R may be identical to or different from each other, and adjacent Rs may be combined to form a ring, by oxidizing with hydrogen peroxide a compound represented by the general formula (II) ##STR2## where R and m have the same meanings as defined for the formula (I), and n is zero or 1, in the presence of an alkali in an amount more than the equimolar amount thereof relative to said compound in water and/or an organic solvent which do not form any organic peracids under reaction conditions.

    摘要翻译: 一种制备由通式(I)表示的双酚砜衍生物的方法,其中R代表氢,卤素,烷基,环烷基,芳基,芳烷基,羟基, 烷氧基,烯丙氧基,羧基或烷氧羰基,m为1〜3的整数,当m为2以上时,R可以相同也可以不同,相邻的Rs可以组合成 形成环,通过用过氧化氢氧化由通式(II)表示的化合物(II)其中R和m具有与式(I)所定义相同的含义,并且n为0或1,在 在水和/或在反应条件下不形成任何有机过酸的有机溶剂中,相对于所述化合物,碱的存在量超过等摩尔量。

    Aromatic hydroxycarboxylic acid resins and their use
    44.
    发明授权
    Aromatic hydroxycarboxylic acid resins and their use 失效
    芳香族羟基羧酸树脂及其用途

    公开(公告)号:US5798422A

    公开(公告)日:1998-08-25

    申请号:US511809

    申请日:1995-08-07

    摘要: Disclosed are an aromatic hydroxycarboxylic acid resin represented by the following formula (1): ##STR1## wherein each A group is the same or different and individually represents a substituted or unsubstituted phenylene or naphthylene group, R.sup.1 represents a hydrogen atom or a C.sub.1-4 alkyl group, R.sup.2 represents a hydrogen atom or a C.sub.1-10 alkyl, C.sub.1-10 alkoxyl, nitro or hydroxyl group, l stands for an integer of 0-100, m stands for an integer of 0-20 and n stands for an integer of 0-3 with the proviso that m stands for an integer other than 0 when all of the A group represent an unsubstituted or substituted a group, a preparation process thereof and use of the same.

    摘要翻译: 公开了由下式(1)表示的芳族羟基羧酸树脂:其中每个A基团相同或不同,并且各自表示取代或未取代的亚苯基或亚萘基 R 1表示氢原子或C 1-4烷基,R 2表示氢原子或C 1-10烷基,C 1-10烷氧基,硝基或羟基,l表示0〜100的整数,m表示 0〜20的整数,n表示0-3的整数,条件是当A组全部为未取代或取代的基团时,m表示0以外的整数,其制备方法及其用途 。

    Polyimide
    45.
    发明授权
    Polyimide 失效
    聚酰亚胺

    公开(公告)号:US5484880A

    公开(公告)日:1996-01-16

    申请号:US354806

    申请日:1994-12-13

    摘要: The present invention relates to an amorphous polyimide or a polyimide copolymer having a requisite structural unit consisting of one or more recurring structural units represented by the formula (1): ##STR1## wherein X is a direct bond, oxygen atom or sulfur atom, and R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are individually a hydrogen atom or methyl, and Ar is a tetravalent radical having 6 to 27 carbon atoms and being selected from the group consisting of a monoaromatic radical, condensed polyaromatic radical and noncondensed polyaromatic radical having aromatic radicals connected to each other with a direct bond or a bridge member.Polyimide and the polyimide copolymer of the invention has excellent heat resistance, is outstanding in melt-flow stability, has greatly improved processability, and can be applied to structural materials, and electric- electronic appliances.

    摘要翻译: 本发明涉及具有必要结构单元的无定形聚酰亚胺或聚酰亚胺共聚物,所述结构单元由一个或多个由式(1)表示的重复结构单元:原子或硫原子组成,并且R 1,R 2,R 3和R 4分别为 氢原子或甲基,Ar是具有6至27个碳原子的四价基团,并且选自具有芳族基团的单芳族基团,缩合多芳族基团和具有直接键或桥键的彼此连接的非缩合多芳族基团 会员。 本发明的聚酰亚胺和聚酰亚胺共聚物具有优异的耐热性,熔体流动稳定性优异,加工性能大大提高,可应用于结构材料和电子电器。

    Color-developing compositions and their use
    46.
    发明授权
    Color-developing compositions and their use 失效
    显色组合物及其用途

    公开(公告)号:US5447901A

    公开(公告)日:1995-09-05

    申请号:US297525

    申请日:1994-08-26

    摘要: A color-developing composition comprises a multi-valent-metal-modified salicylic acid resin (Resin A) and a polycondensation resin (resin B) at a weight ratio of 90-30 to 10-70. Resin A is composed of 5-35 mole % of a structural unit (I) and 65-95 mole % of at least one structural unit (II) or 65-95 mole % of a coupled structural unit of at least one unit (II) and at least one unit (III) and has a weight-average molecular weight of 350-5,000. Resin B is composed of the unit (II) and/or the unit (III) and has a weight-average molecular weight of 350-5,000. ##STR1## wherein Z represents M/m, M being a metal ion of m valence and m being an integer; R.sub.1 and R.sub.2 represent H or a C.sub.1-12 alkyl, aralkyl, aryl or cycloalkyl group; R.sub.3 and R.sub.6 represent H or a C.sub.1-4 alkyl group; and R.sub.4 and R.sub.5 represent H or CH.sub.3.

    摘要翻译: 显色组合物包含重量比为90-30至10-70的多价金属改性水杨酸树脂(树脂A)和缩聚树脂(树脂B)。 树脂A由5-35摩尔%的结构单元(I)和65-95摩尔%的至少一种结构单元(II)或65-95摩尔%的至少一个单元(II)的偶联结构单元组成 )和至少一种单元(I​​II),并且其重均分子量为350-5,000。 树脂B由单元(II)和/或单元(III)组成,重均分子量为350-5,000。 (III)其中Z表示M / m,M是m价金属离子,m为整数; R1和R2表示H或C1-12烷基,芳烷基,芳基或环烷基; R3和R6表示H或C1-4烷基; R4和R5代表H或CH3。

    Color-developing compositions and their use
    47.
    发明授权
    Color-developing compositions and their use 失效
    显色组合物及其用途

    公开(公告)号:US5376615A

    公开(公告)日:1994-12-27

    申请号:US915175

    申请日:1992-07-20

    IPC分类号: B41M5/155 B41M5/333 B41M5/20

    摘要: A color-developing composition comprises a multi-valent-metal-modified salicylic acid resin (Resin A) and a polycondensation resin (resin B) at a weight ratio of 90-30 to 10-70. Resin A is composed of 5-35 mole % of a structural unit (I) and 65-95 mole % of at least one structural unit (II) or 65-95 mole % of a coupled structural unit of at least one unit (II) and at least one unit (III) and has a weight-average molecular weight of 350-5,000. Resin B is composed of the unit (II) and/or the unit (III) and has a weight-average molecular weight of 350-5,000. ##STR1## wherein Z represents M/m, M being a metal ion of m valence and m being an integer; R.sub.1 and R.sub.2 represent H or a C.sub.1-12 alkyl, aralkyl, aryl or cycloalkyl group; R.sub.3 and R.sub.6 represent H or a C.sub.1-4 alkyl group; and R.sub.4 and R.sub.5 represent H or CH.sub.3.

    摘要翻译: 显色组合物包含重量比为90-30至10-70的多价金属改性水杨酸树脂(树脂A)和缩聚树脂(树脂B)。 树脂A由5-35摩尔%的结构单元(I)和65-95摩尔%的至少一种结构单元(II)或65-95摩尔%的至少一个单元(II)的偶联结构单元组成 )和至少一种单元(I​​II),并且其重均分子量为350-5,000。 树脂B由单元(II)和/或单元(III)组成,重均分子量为350-5,000。 (III)其中Z表示M / m,M是m价金属离子,m为整数; R1和R2表示H或C1-12烷基,芳烷基,芳基或环烷基; R3和R6表示H或C1-4烷基; R4和R5代表H或CH3。