Imide-containing polymers made by bulk polymerization
    4.
    发明授权
    Imide-containing polymers made by bulk polymerization 失效
    通过本体聚合制备的含酰亚胺的聚合物

    公开(公告)号:US6066710A

    公开(公告)日:2000-05-23

    申请号:US182129

    申请日:1998-10-29

    IPC分类号: C08G73/10

    摘要: Disclosed is a method of making an imide-containing polymer by bulk or melt polymerizing monomers. A mixture is formed of (1) a cyclic compound that contains an anhydride group and a second group which is an anhydride, a carboxylic acid, or an ester and (2) a diamine in an amount stoichiometric .+-.5 mole % of stoichiometric with the amount of cyclic compound. An end capper may also be included in the mixture to control the molecular weight but no solvent is used. A polyimidesiloxane can be made by using a siloxane-containing diamine. The mixture is heated to a temperature above the T.sub.g or T.sub.m of the polymer but below its degradation temperature.

    摘要翻译: 公开了通过本体制造含酰亚胺的聚合物或熔融聚合单体的方法。 混合物由(1)含有酸酐基团的环状化合物和作为酸酐,羧酸或酯的第二基团形成,和(2)化学计量的+/- 5摩尔%的化学计量的二胺 与环状化合物的量。 混合物中也可以包括封端剂以控制分子量,但不使用溶剂。 聚硅氧烷可以通过使用含硅氧烷的二胺制成。 将混合物加热到高于聚合物的Tg或Tm但低于其降解温度的温度。

    Polymer blends with improved hydrolytic stability
    6.
    发明授权
    Polymer blends with improved hydrolytic stability 失效
    具有改进的水解稳定性的聚合物共混物

    公开(公告)号:US4444960A

    公开(公告)日:1984-04-24

    申请号:US203765

    申请日:1980-11-03

    IPC分类号: C08G75/24 C08L67/02 C08L81/08

    CPC分类号: C08L67/02 C08G75/24 C08L81/08

    摘要: This invention relates to substantially transparent solid solution polymer blends having improved hydrolytic stability, and flexibility which comprise, in admixture, (1) a linear aromatic polyester of a dicarboxylic acid and a bisphenol, and (2) a linear aromatic polysulfonate of a bisphenol and a disulfonic acid. The polyblends are useful in preparation of films and molded articles.

    摘要翻译: 本发明涉及具有改进的水解稳定性和柔性的基本透明的固溶聚合物共混物,其包含(1)二羧酸和双酚的线性芳族聚酯和(2)双酚的线性芳族聚磺酸酯和 二磺酸。 聚合物共混物可用于制备膜和模塑制品。

    Stabilization of aromatic polyesters with mercaptobenzothiazole
    7.
    发明授权
    Stabilization of aromatic polyesters with mercaptobenzothiazole 失效
    用巯基苯并噻唑稳定芳族聚酯

    公开(公告)号:US4803236A

    公开(公告)日:1989-02-07

    申请号:US135480

    申请日:1987-12-21

    IPC分类号: C08K5/47 C08K5/34

    CPC分类号: C08K5/47

    摘要: An aromatic polyester composition comprising an aromatic polyester derived from terephthalic acid and/or isophthalic acid and a bisphenol and a stabilizer comprising mercaptobenzothiazole.

    摘要翻译: 一种芳族聚酯组合物,其包含衍生自对苯二甲酸和/或间苯二甲酸的芳族聚酯和双酚以及包含巯基苯并噻唑的稳定剂。

    Polyester composition, process therefor and molded articles therefrom
    9.
    发明授权
    Polyester composition, process therefor and molded articles therefrom 失效
    聚酯组合物,其制备方法及其成型制品

    公开(公告)号:US4278785A

    公开(公告)日:1981-07-14

    申请号:US45464

    申请日:1979-06-04

    CPC分类号: C08G63/20

    摘要: There are described linear aromatic polyesters of a bisphenol and a dicarboxylic acid having terminal carboxylate ester substituents of an aliphatic monofunctional alcohol of 8 to 45 carbons. The polyesters have enhanced hydrolytic stability compared to conventional polyesters of bisphenol and a dicarboxylic acid. Low molecular weight polyesters of the invention have improved stability on processing compared to comparable conventional polyesters of a bisphenol and a dicarboxylic acid. Processes for preparing the polyesters are also disclosed.

    摘要翻译: 描述了具有8至45个碳原子的脂肪族单官能醇的具有末端羧酸酯取代基的双酚和二羧酸的线性芳族聚酯。 与双酚和二羧酸的常规聚酯相比,聚酯具有增强的水解稳定性。 与相当于双酚和二羧酸的常规聚酯相比,本发明的低分子量聚酯具有改进的加工稳定性。 还公开了制备聚酯的方法。

    Polyimidesiloxane adhesive
    10.
    发明授权
    Polyimidesiloxane adhesive 失效
    聚酰亚胺硅氧烷胶

    公开(公告)号:US06218496B1

    公开(公告)日:2001-04-17

    申请号:US08220562

    申请日:1994-03-31

    IPC分类号: C08G7726

    摘要: Disclosed is a polyimidesiloxane adhesive made by reacting in a solution of an organic solvent a dianhydride selected from the group consisting of biphenyl dianhydride and oxydiphthalic anhydride with an approximately stoichiometric amount of a diamine. The diamine is a mixture of about 5 to about 30 mole % of a siloxane-containing diamine and about 70 to about 95 mole % of a non-siloxane containing diamine. The non-siloxane containing diamine is a mixture of about 10 to about 90 mole % each of at least two of the diamines 2,2-bis(4[4-aminophenoxy]phenyl) propane, &agr;,&agr;′-bis(4-aminophenyl)-1,4-diisopropylbenzene, 3,3′-diaminophenylsulfone, and 1,3-bis(3-aminophenoxy)benzene. The adhesive can be made into one, two, and three-layer tapes (or dispensed in other ways) which have a high Tg and a relatively low bonding temperature.

    摘要翻译: 公开了一种聚酰亚胺硅氧烷粘合剂,其通过在有机溶剂中选择联苯二酐和氧联二邻苯二甲酸酐的二酐与约化学计量的二胺反应制得。 二胺是约5至约30摩尔%的含硅氧烷的二胺和约70至约95摩尔%的含硅氧烷的二胺的混合物。 不含硅氧烷的二胺是每种至少两种二胺2,2-双(4 [4-氨基苯氧基]苯基)丙烷,α,α'-双(4- 氨基苯基)-1,4-二异丙基苯,3,3'-二氨基苯基砜和1,3-双(3-氨基苯氧基)苯。 粘合剂可以制成具有高Tg和相对低的粘合温度的一层,两层和三层带(或以其它方式分配)。