Polyamides and objects obtained from them
    1.
    发明授权
    Polyamides and objects obtained from them 失效
    聚酰胺和从中获得的物体

    公开(公告)号:US5422418A

    公开(公告)日:1995-06-06

    申请号:US999485

    申请日:1992-12-30

    CPC分类号: C08G69/36 C08L77/10

    摘要: The present invention relates to new polyamides comprising, on a mass basis:(a) 45 to 75% of an x,T unit, x being between 4 and 12 inclusive, the x,T unit being the condensation product of a diamine having x carbon atoms and of terephthalic acid, and(b) 55 to 25% of an aliphatic unit -HN-(CH.sub.2).sub.n -CO, n being between 6 and 14 inclusive. and the terpolyamides obtained by including a monomeric unit (c) such as the unit 6 or 6,I as a replacement for part of the aliphatic unit (b).The polyamide compositions thus obtained exhibit a Tg lower than 130.degree. C., a Tm higher than 230.degree. C. and a good crystallizability.

    摘要翻译: 本发明涉及新的聚酰胺,其包括:(a)45至75%的x,T单元,x在4和12之间,其中x,T单元是具有x的二胺的缩合产物 碳原子和对苯二甲酸,和(b)55〜25%的脂族单元-HN-(CH2)n-CO,n在6和14之间,包括端值。 以及通过包括单体单元(c)如单元6或6,I作为脂族单元(b)的一部分的替代物而获得的三聚酰胺。 由此得到的聚酰胺组合物的Tg低于130℃,Tm高于230℃,结晶性良好。

    Process for the preparation of polyamides with oligomer formation
    2.
    发明授权
    Process for the preparation of polyamides with oligomer formation 失效
    用低聚物形成制备聚酰胺的方法

    公开(公告)号:US5310860A

    公开(公告)日:1994-05-10

    申请号:US999484

    申请日:1992-12-30

    IPC分类号: C08G69/36 C08L77/10 C08G69/16

    CPC分类号: C08G69/36 C08L77/10

    摘要: A process for the manufacture of polyamides consisting essentially of the stages of:(i) reacting 10 to 90% by weight of the aliphatic and/or cycloaliphatic and/or aromatic-aliphatic diamines (c) with a lactam and/or corresponding amino acid (a) or the substantially stoichiometric combination of one or more aliphatic diamine(s) and of one or more dicarboxylic aliphatic acid(s) and with the aromatic diacid (b); and(ii) reacting the remainder of the aliphatic and/or cycloaliphatic and/or aromatic-aliphatic diamine (c) with the oligomer produced in stage (i) in one or more substages.

    摘要翻译: 将制备聚酰胺的方法基本上由以下步骤组成:(i)将10至90重量%的脂族和/或脂环族和/或芳族 - 脂族二胺(c)与内酰胺和/或相应的氨基酸 (a)或一种或多种脂族二胺和一种或多种二羧酸脂肪酸和芳族二酸(b)的基本上化学计量的组合; 和(ii)使剩余的脂族和/或脂族和/或芳族 - 脂族二胺(c)与在阶段(i)中制备的低聚物在一个或多个分段中反应。

    Transparent polyamide compositions having high resistance to chemical
agents
    3.
    发明授权
    Transparent polyamide compositions having high resistance to chemical agents 失效
    透明聚酰胺组合物,具有高耐化学试剂性

    公开(公告)号:US5416172A

    公开(公告)日:1995-05-16

    申请号:US993720

    申请日:1992-12-18

    CPC分类号: C08L77/06 C08L77/00

    摘要: Transparent polyamide compositions having high resistance to chemical agents, as well as the process for their preparation and the articles obtained from said compositions. The present polyamide compositions contain from 1 to 99% by weight, preferably 40 to 90% by weight, of a first polyamide consisting of aliphatic units containing at least 7 carbon atoms, isophthalic and terephthalic diacids, the latter being predominant, and cycloaliphatic diamine units, and from 99 to 1% by weight, preferably 60 to 10%, of a semi-crystalline polyamide consisting of at least 35%, preferably 50%, by weight of an aliphatic unit containing at least 7 carbon atoms.

    摘要翻译: 对化学试剂具有高耐性的透明聚酰胺组合物,以及其制备方法和由所述组合物获得的制品。 本发明的聚酰胺组合物含有1至99重量%,优选40至90重量%的由含有至少7个碳原子的脂肪族单元组成的第一聚酰胺,间苯二甲酸和对苯二甲酸二酸,后者为主要的脂环族二胺单元 ,和99至1重量%,优选60至10重量%的由至少35重量%,优选50重量%的含有至少7个碳原子的脂族单元组成的半结晶聚酰胺。

    Transparent copolyamide from oligomeric amide and cycloaliphatic diamine
and process for the production thereof
    4.
    发明授权
    Transparent copolyamide from oligomeric amide and cycloaliphatic diamine and process for the production thereof 失效
    来自低聚酰胺和脂环族二胺的透明共聚酰胺及其制备方法

    公开(公告)号:US4898896A

    公开(公告)日:1990-02-06

    申请号:US249376

    申请日:1988-09-26

    CPC分类号: C08G69/36

    摘要: A transparent polyamide containing terephthalic acid radicals or radicals of the mixture of terephthalic and isophthalic acids and a cycloaliphatic diamine radical and having the chain formations: ##STR1## in which: y.sub.1 +y.sub.2 is between 10 and 200 with y.sub.1 /(y.sub.1 +y.sub.2)>0.5;m, p, m' and p' are whole numbers equal to or greater than zero, such that: ##EQU1## is between 0.5 and 10, taken statistically over the marcomolecule; Z and Z' are the same or different and are either a polymethylene segment --(CH.sub.2)--.sub.n where n is a whole number equal to or greater than 6 or a sequence containing an amide resulting from condensation of an aliphatic diamine containing at least 6 carbon atoms between the amine functions and an aliphatic dicarboxylic acid containing at least 4 carbon atoms between the acid functions;A and B are the same or different and represent hydrogen or a methyl, ethyl, or isopropyl radical;X and Y are the same or different and represent hydrogen or a methyl radical; andq is a whole number between 0 to 6. The process of making such polyamide comprises a first stage wherein terephthalic acid or a mixture of terephthalic and isophthalic acids containing more than 50 mol. % terephthalic acid are reacted with a lactam followed by a second stage where the oligomeric diacid obtained is reacted with a cycloaliphatic diamine.

    摘要翻译: 含有对苯二甲酸基团或对苯二甲酸和间苯二甲酸的混合物的基团的透明聚酰胺和脂环族二胺基团,并且具有链状形成:其中:y1 + y2在10和200之间,y1 /(y1 + y2)> 0.5; m,p,m'和p'是等于或大于零的整数,使得:在0.5和10之间,统计学上超过了分子; Z和Z'相同或不同,并且是多亚甲基 - (CH 2)-n,其中n是等于或大于6的整数或包含由包含至少6个的脂族二胺缩合产生的酰胺的序列 胺官能团之间的碳原子和在酸官能团之间含有至少4个碳原子的脂族二羧酸; A和B相同或不同,表示氢或甲基,乙基或异丙基; X和Y相同或不同,代表氢或甲基; q是0至6之间的整数。制备这种聚酰胺的方法包括第一阶段,其中对苯二甲酸或对苯二甲酸和间苯二甲酸的混合物含有大于50mol。 %对苯二甲酸与内酰胺反应,然后与获得的低聚二酸与脂环族二胺反应的第二阶段进行反应。

    Block polyetheramides
    5.
    发明授权
    Block polyetheramides 失效
    块状聚乙烯

    公开(公告)号:US5166309A

    公开(公告)日:1992-11-24

    申请号:US851798

    申请日:1992-03-16

    IPC分类号: C08G69/40 C08G69/44

    摘要: Novel block polyetheramides, well adapted for the usual thermoplastic elastomer applications, e.g., as molded or extruded shaped articles, films, sheaths, composites and the like, have the following general formula: ##STR1## in which D is the residue of an oligoamidediacid having an Mn ranging from 300 to 8,000 and/or the residue of the diacidic polymer chain limiter, PE is the residue of a polyetherdiol having an Mn ranging from 200 to 5,000, X is a linear or branched, (cyclo)aliphatic or aromatic hydrocarbon having form 3 to 20 carbon atoms, R.sub.1 and R.sub.2, which may be identical or different, are either OH or H, n is a number ranging from 0.1 to 10, and m is an average number ranging from 2 to 50, and are prepared by reacting, in the molten state, an oligoamidediacid A with an oligotherdiol B and a low molecular weight diacidic coupler C, the respective molar percentages a, b and c of which being such that:-5.ltoreq.a+c-b.ltoreq.5 and c.gtoreq.3.

    摘要翻译: 适用于通常的热塑性弹性体应用的新型嵌段聚醚酰胺,例如作为模制或挤出成型制品,膜,护套,复合材料等具有以下通式:其中D是具有 Mn为300至8000,和/或二酸聚合物限制剂的残基,PE为Mn范围为200至5,000的聚醚二醇的残基,X为直链或支链的(环)脂族或芳族烃,其具有 形成3至20个碳原子,可以相同或不同的R 1和R 2为OH或H,n为0.1至10的数,m为2至50的平均数,并且由 在熔融状态下使低聚乙二醇A与低聚二醇B和低分子量二酸偶合剂C反应,其摩尔百分数a,b和c分别为:a = 和c> / = 3。

    Block copolyetheramides
    9.
    发明授权
    Block copolyetheramides 失效
    嵌段共聚物

    公开(公告)号:US5213891A

    公开(公告)日:1993-05-25

    申请号:US828150

    申请日:1992-01-30

    摘要: Block copolyetheramides, well adopted for conversion into a wide variety of useful thermoplastic elastomer shaped articles, have the formula: ##STR1## in which D is the residue of a diacid oligamide having an Mn ranging from 300 to 3,000 and/or the residue of the diacid chain limiter, PE is the residue of a polyetherdiol having an Mn ranging from 200 to 5,000,.times.is a straight or branched chain (cyclo)aliphatic or aromatic hydrocarbon having from 4 to 20 carbon atoms, n is a number ranging from 1 to 4, and m is an average number ranging from 2 to 50; these are prepared by polycondensing a multiblock polymer having the formula: ##STR2## with a diamine H.sub.2 N--X--NH.sub.2.

    摘要翻译: 用于转化成多种有用的热塑性弹性体成形制品的嵌段共聚醚酰胺具有下式:其中D是具有300-3000的上限和Mn的二酸低聚酰胺的残基,和/或 二酸链限制剂,PE是具有200-5,000的&upbar&Mn的聚醚二醇的残基,x是具有4至20个碳原子的直链或支链(环)脂族或芳族烃,n是1 至4,m为2至50的平均数; 通过将具有下式的多嵌段聚合物与二胺H 2 N-X-NH 2缩聚来制备这些聚合物。