利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

12 条记录 (耗时 0.018 秒)

    Preparation of poly(ester carbonate) by interfacial method
    3.
    发明授权
    Preparation of poly(ester carbonate) by interfacial method 失效
    通过界面法制备聚（碳酸酯）

    公开(公告)号：US4255556A

    公开(公告)日：1981-03-10

    申请号：US29422

    申请日：1979-04-12

    申请人： Leon Segal ,  Bruce T. DeBona

    发明人： Leon Segal ,  Bruce T. DeBona

    IPC分类号： C08G63/00 ,  C08G63/64

    CPC分类号： C08G63/64

    摘要： Poly(ester carbonate) polymers are prepared by reaction of bifunctional phenolates in an aqueous phase with phosgene and with the acyl halide of a bifunctional carboxylic acid halide such as terephthaloyl chloride in an organic solvent such as dichloromethane. At least a portion of the phosgene is reacted with the phenolate before or during reaction of the acid chloride with the phenolate to avoid the formation of polyester blocks which have limited solubility in the organic solvent. After reaction is complete, or at any stage wherein oligomers are formed, the aqueous phase can be cleanly removed and easily separated from the organic phase, and the organic phase readily washed free of by-products. The final polymer product is recovered from the washed organic phase and is colorless, substantially amorphous and melt processable, and has a high glass transition temperature.

    摘要翻译： 聚（碳酸酯）聚合物通过在水相中的双功能酚盐与光气和双官能羧酸卤化物如对苯二甲酰氯的酰卤在有机溶剂如二氯甲烷中反应来制备。 在酸酰胺与酚盐反应之前或期间，光气的至少一部分与酚盐反应，以避免在有机溶剂中溶解度有限的聚酯嵌段的形成。 反应完成后，或在其中形成低聚物的任何阶段，水相可以被干净地除去并容易地与有机相分离，并且有机相容易地被洗涤而不含副产物。 从洗涤的有机相中回收最终的聚合物产物，是无色的，基本上无定形的和可熔融加工的，并且具有高的玻璃化转变温度。

    Temperature stable thermotropic poly(ester carbonate) derived from t-butylhydroquinone
    4.
    发明授权
    Temperature stable thermotropic poly(ester carbonate) derived from t-butylhydroquinone 失效
    衍生自叔丁基氢醌的温度稳定的热致聚（碳酸酯）

    公开(公告)号：US4398018A

    公开(公告)日：1983-08-09

    申请号：US333228

    申请日：1981-12-21

    申请人： Murali K. Akkapeddi ,  Bruce T. DeBona ,  Yu-Chin Lai ,  Dusan C. Prevorsek

    发明人： Murali K. Akkapeddi ,  Bruce T. DeBona ,  Yu-Chin Lai ,  Dusan C. Prevorsek

    IPC分类号： C08G63/64

    CPC分类号： C08G63/64

    摘要： A thermotropic poly(ester carbonate) containing diacyl moieties such as terephthalate and carbonate moieties as well as dihydroxy-derived moieties is useful for forming fibers or films. The dihydroxy-derived moieties are at least 40% derived from t-butylhydroquinone, with hydroquinone and methylhydroquinone being exemplary second components. The polymers can be prepared by melt, solution or interfacial polymerization, are liquid crystalline in the melt and have glass transition temperatures above 100.degree. C.

    摘要翻译： 含有二酰基部分如对苯二甲酸酯和碳酸酯部分的热致聚（酯碳酸酯）以及二羟基衍生的部分可用于形成纤维或膜。 二羟基衍生的部分至少40％来自叔丁基氢醌，其中氢醌和甲基氢醌是示例性的第二组分。 聚合物可以通过熔融，溶液或界面聚合制备，在熔体中为液晶，玻璃化转变温度高于100℃。

    Polymers of p-(1,1-dimethyl-2-hydroxyethyl)benzoic acid and preparation thereof
    5.
    发明授权
    Polymers of p-(1,1-dimethyl-2-hydroxyethyl)benzoic acid and preparation thereof 失效
    对 - （1,1-二甲基-2-羟乙基）苯甲酸的聚合物及其制备方法

    公开(公告)号：US4310655A

    公开(公告)日：1982-01-12

    申请号：US153361

    申请日：1980-05-27

    申请人： Herbert K. Reimschuessel ,  Bruce T. DeBona

    发明人： Herbert K. Reimschuessel ,  Bruce T. DeBona

    IPC分类号： C08G63/06 ,  C08G63/664

    CPC分类号： C08G63/664 ,  C08G63/06 ,  C08G63/065

    摘要： The subject polymers are novel homopolymers and copolymers. The homopolymers are characterized by relatively high T.sub.g of about 120.degree. C. relative to their T.sub.m of about 250.degree. C., whereby they can readily be fabricated into fibers, films and like structures from the melt, and retain strength above 100.degree. C. The copolymers have T.sub.g 's intermediate between those of the homopolymers of the constituent monomers, and can be fabricated as for the subject homopolymers.Novel processes of obtaining the monomer, p-(1,1-dimethyl-2-hydroxyethyl)benzoic acid, are disclosed.

    摘要翻译： 主题聚合物是新的均聚物和共聚物。 均聚物的特征在于相对于它们的Tm约为250℃的约120℃的相对高的Tg，由此它们可以容易地从熔体制成纤维，薄膜和类似结构，并保持高于100℃的强度。 共聚物的Tg在构成单体的均聚物之间的中间体，并且可以与目标均聚物一样制备。 公开了获得单体对 - （1,1-二甲基-2-羟乙基）苯甲酸的新方法。

    Interfacial production of poly(ester carbonate) or polyester including acid chloride synthesis
    7.
    发明授权
    Interfacial production of poly(ester carbonate) or polyester including acid chloride synthesis 失效
    聚（碳酸酯）或聚酯的界面生产，包括酰氯合成

    公开(公告)号：US4311822A

    公开(公告)日：1982-01-19

    申请号：US145901

    申请日：1980-05-02

    申请人： Gerald J. Dege ,  Leon Segal ,  Bruce T. DeBona ,  Robert S. Cooke

    发明人： Gerald J. Dege ,  Leon Segal ,  Bruce T. DeBona ,  Robert S. Cooke

    IPC分类号： C08G63/00 ,  B01J31/00 ,  C07C51/00 ,  C07C51/58 ,  C07C51/60 ,  C07C67/00 ,  C08G63/19 ,  C08G63/64 ,  C08G64/22 ,  C08G64/26 ,  C08G63/62

    CPC分类号： C08G63/64 ,  C07C51/60

    摘要： A process for producing poly(ester carbonates) and polyesters by reacting an aromatic or cycloaliphatic dicarboxylate salt such as sodium terephthalate with phosgene in an organic solvent in the presence of a catalytic amount of a tertiary nitrogen compound such as pyridine, optionally separating the suspended by-product inorganic salt and then interfacially reacting with a bisphenol such as bisphenol A. Excess phosgene in the diacid chloride synthesis can be carried over to the polymerization if a poly(ester carbonate) is to be produced or removed if a polyester is to be produced. Certain low levels of a tertiary nitrogen compound with a pyridine nucleus in the organic solution do not interfere with the interfacial polymerization.

    摘要翻译： 通过使芳族或脂环族二羧酸盐如对苯二甲酸钠与光气在有机溶剂中在催化量的叔氮化合物如吡啶的存在下反应来制备聚（碳酸酯）和聚酯的方法，任选将由 - 产物无机盐，然后与双酚如双酚A进行界面反应。如果要生产或除去聚酯（如果要生产聚酯），则二酰氯合成中的过量光气可以转移到聚合反应 。 某些低水平的有机溶液中含有吡啶核的叔氮化合物不会干扰界面聚合。

    Melt processable poly(ester carbonate) with high glass transition temperature
    8.
    发明授权
    Melt processable poly(ester carbonate) with high glass transition temperature 失效
    具有高玻璃化转变温度的可熔融加工的聚（碳酸酯）

    公开(公告)号：US4310652A

    公开(公告)日：1982-01-12

    申请号：US133228

    申请日：1980-03-24

    申请人： Bruce T. DeBona ,  Dusan C. Prevorsek

    发明人： Bruce T. DeBona ,  Dusan C. Prevorsek

    IPC分类号： C08G63/00 ,  C08G63/64

    CPC分类号： C08G63/64

    摘要： Poly(ester aromatic dihydric alcohol) polymers having carbonate moieties, aromatic or cycloaliphatic dicarboxylic acid moieties and carbonate moieties and having high glass transition temperatures (over 100.degree. C.) and being melt processable. At least part of the aromatic dihydric alcohol moieties have the 4-carbon of each of two phenoxies covalently bonded to the same ring carbon of a carbocyclic or heterocyclic moiety. Representative poly(ester carbonates) are formed from bisphenol-A, phenolphthalein, terephthaloyl chloride and phosgene.

    摘要翻译： 具有碳酸酯部分，芳族或脂环族二羧酸部分和碳酸酯部分并具有高玻璃化转变温度（超过100℃）并且可熔融加工的聚（酯芳族二元醇）聚合物。 至少部分芳族二元醇部分具有共价键合到碳环或杂环部分的相同环碳上的两个苯氧基中的每一个的4-碳。 代表性的聚（碳酸酯）由双酚A，酚酞，对苯二甲酰氯和光气形成。

    Process for the production of cyanate ester resins having unique composition
    9.
    发明授权
    Process for the production of cyanate ester resins having unique composition 失效
    用于生产具有独特组成的氰酸酯树脂的方法

    公开(公告)号：US5756592A

    公开(公告)日：1998-05-26

    申请号：US751083

    申请日：1996-11-15

    申请人： William B. Bedwell ,  Raymond J. Swedo ,  Bruce T. DeBona ,  George D. Green

    发明人： William B. Bedwell ,  Raymond J. Swedo ,  Bruce T. DeBona ,  George D. Green

    IPC分类号： B01J19/24 ,  C08G8/28 ,  C08G73/06 ,  C08G85/00 ,  C08G65/48

    CPC分类号： B01J19/2415 ,  C08G8/28 ,  B01J2219/00058 ,  B01J2219/00099 ,  B01J2219/00166 ,  B01J2219/00186

    摘要： A continuous process for the production of a phenolic-based cyanate ester resin is provided and includes the steps of: feeding a phenolic organic compound, a trialkylamine and a cyanogen halide into a continuous, plug-flow type reactor; causing the reactants to flow through and react in the reactor over a period of time defined as a residence time; continuously reacting the phenolic organic compound, the triallckylamine and the cyanogen halide in the reactor; and maintaining a temperature in the reactor of between about -75.degree. C. to about 0.degree. C. The reactor has a length which is equal to or greater than ten times its internal diameter. The mol equivalent concentration of the cyanogen halide is greater than the mol equivalent concentration of the trialkylamine, and the mol equivalent of the trialkylamine is greater than the mol equivalent of the phenolic organic compound. The reactants are resident for a long enough time in the reactor to achieve at least substantial conversion of the phenol groups to cyanate ester groups, but for short enough a time to substantially suppress undesirable side reactions. The phenolic-based cyanate ester resins prepared by the continuous process may contain as much as 95 percent by weight or more cyanate ester groups.

    摘要翻译： 提供了一种生产酚基氰酸酯树脂的连续方法，包括以下步骤：将酚类有机化合物，三烷基胺和氰卤化物进料到连续的流动型反应器中; 使反应物在定义为停留时间的时间内流过并在反应器中反应; 在反应器中使酚类有机化合物，三环戊胺和氰卤化物连续反应; 并将反应器中的温度保持在约-75℃至约0℃之间。反应器的长度等于或大于其内径的十倍。 氰卤化物的摩尔当量浓度大于三烷基胺的摩尔当量浓度，三烷基胺的摩尔当量大于酚类有机化合物的摩尔当量。 反应物在反应器中驻留足够长的时间以实现酚基团至少基本上转化为氰酸酯基团，但足够短的时间以基本上抑制不期望的副反应。 通过连续方法制备的酚基氰酸酯树脂可以含有多达95重量％或更多个氰酸酯基团。