Fullerene-polymer compositions
    1.
    发明授权
    Fullerene-polymer compositions 失效
    富勒烯聚合物组合物

    公开(公告)号:US5281653A

    公开(公告)日:1994-01-25

    申请号:US797525

    申请日:1991-11-25

    CPC分类号: C08K3/04 Y10S977/753

    摘要: The present invention relates to novel compositions of matter comprising fullerenes and polymers, wherein the fullerenes are combined with the polymer in an amount sufficient to result in a change or modification in the viscoelastic properties of the resulting composition from that of the unmodified polymer typically within the range of from about 0.01 wt. % to about 85 wt. %. Also included in the present invention is the process for making the novel fullerene-polymer compositions and the products produced by the process disclosed therein. The novel compositions show changes in the viscoelastic properties in comparison to the unmodified polymer, and hence, have utility in any application in which the unmodified polymer may be used, but wherein the application would benefit from the resulting change in the viscoelastic properties.

    摘要翻译: 本发明涉及包含富勒烯和聚合物的新型物质组合物,其中富勒烯与聚合物结合的量足以导致所得组合物的粘弹性性质与未改性聚合物的粘弹性性质的改变或改性, 范围为约0.01重量% %至约85重量% %。 本发明还包括制备新型富勒烯聚合物组合物和通过其中公开的方法制备的产品的方法。 与未改性的聚合物相比,该新型组合物显示出粘弹性性能的变化,因此在可以使用未改性聚合物的任何应用中具有实用性,但是其应用将受益于所得到的粘弹性质的变化。

    Disentangled chain telechelic polymers
    5.
    发明授权
    Disentangled chain telechelic polymers 失效
    断开链式遥爪聚合物

    公开(公告)号:US5238634A

    公开(公告)日:1993-08-24

    申请号:US817573

    申请日:1992-01-07

    摘要: The present invention provides a process for producing high elongation elastomers and highly oriented films and fibers from polymers having specific associative groups, such that the end groups on each macromolecule tend to associate with one another after the macromolecules are in a disentangled state, i.e., in the form of a semi-dilute solution. This association is of a force strong enough to prevent the macromolecular chains from slipping past one another and reentangling when the polymer is moderately heated or further concentrated in solution. The association may be manipulated, i.e., is reversible, under a change in parameter such as temperature, pH, polarity of the solvent medium and like parameters. The associated polymer macromolecules can be drawn as a gel from a semi-dilute solution into a highly aligned disentangled polymer to yield shaped articles.

    摘要翻译: 本发明提供了一种用于由具有特定缔合基团的聚合物制备高伸长弹性体和高取向膜和纤维的方法,使得每个高分子上的端基在大分子处于解缠状态之后倾向于相互结合,即,在 半稀释溶液的形式。 该缔合是具有足够强度的力,以防止大分子链彼此滑动并且当聚合物适度加热或进一步在溶液中浓缩时重新连接。 可以在诸如温度,pH,溶剂介质的极性等参数的变化等操作,即可逆的关联。 相关联的聚合物大分子可以作为凝胶从半稀释溶液中拉伸成高度对准的解缠结聚合物以产生成型制品。

    Preparation of polymer incorporating masked functional group-containing
monomers
    6.
    发明授权
    Preparation of polymer incorporating masked functional group-containing monomers 失效
    含有掩蔽的含官能团单体的聚合物的制备

    公开(公告)号:US4987200A

    公开(公告)日:1991-01-22

    申请号:US59711

    申请日:1987-06-08

    CPC分类号: C08F210/00 C08F210/16

    摘要: Polymers of olefin monomers and a substantially uniform concentration of carboxyl, hydroxyl, thio, amino, cabonyl and imino functional group-containing monomers. Polymers of olefin monomers and carboxyl, hydroxyl, thio, amino, carbonyl and imino functional group-containing monomers substantially devoid of halogen. Method for preparing polymers by reacting carboxyl, hydroxyl, thio, amino, carbonyl and imino functional group-containing monomers with non-halogenated organometallic compounds to form masked, functional group-containing monomers and polymerizing polymer chain monomers with the masked, functional group-containing monomers to produce a polymer chain. Method for forming masked, functional group-containing monomers by reacting carboxyl, hydroxyl, thio, amino, carbonyl and imino functional group-containing monomers with non-halogenated organometallic compounds. Masked, carboxyl, hydroxyl, thio, amino, carbonyl and imino functional group-containing monomers.

    Easy processing ethylene propylene elastomers
    7.
    发明授权
    Easy processing ethylene propylene elastomers 失效
    易加工乙烯丙烯弹性体

    公开(公告)号:US4722971A

    公开(公告)日:1988-02-02

    申请号:US18198

    申请日:1987-02-24

    IPC分类号: C08L23/16

    CPC分类号: C08L23/16 C08L2312/00

    摘要: By selecting the composition and intermolecular compositional distribution with respect to ethylene and diene content and the molecular weight and molecular weight distribution, ethylene-propylene-diene terpolymers can have both improved processing properties and compound vulcanizate physical properties. The lower molecular weight fractions of 10.sup.4 to about 5.times.10.sup.5 have at least 2 times the diene content of the higher molecular weight fractions and an ethylene content of 30-80 wt. %. The higher molecular weight fractions of 2.times.10.sup.5 to about 10.sup.7 have a higher ethylene content than the lower molecular weight fractions and are less than 90 wt. % ethylene.

    摘要翻译: 通过选择相对于乙烯和二烯含量以及分子量和分子量分布的组成和分子间组成分布,乙烯 - 丙烯 - 二烯三元共聚物可以具有改进的加工性能和复合硫化物的物理性能。 104至约5×10 5的较低分子量级分具有至少2倍于较高分子量级分的二烯含量,并且乙烯含量为30-80wt。 %。 2x105至约107的较高分子量级分具有比较低分子量级分更高的乙烯含量,并且小于90wt。 % 乙烯。

    Process for sulfonating polymers
    8.
    发明授权
    Process for sulfonating polymers 失效
    磺化聚合物的方法

    公开(公告)号:US4303766A

    公开(公告)日:1981-12-01

    申请号:US859288

    申请日:1977-12-12

    IPC分类号: C08C19/20 C08F8/36 C08C19/22

    CPC分类号: C08C19/20 C08F8/36

    摘要: A process for sulfonating polymers which are prepared by solution polymerization using a Friedel-Crafts or Ziegler-type catalyst is disclosed. The reactor effluent containing polymer, unreacted light monomers, diluent-solvent and active catalyst is first treated to remove substantially all unreacted light monomer, e.g. by flashing. The effluent is then treated with a sulfonating agent (e.g. acetyl sulfate and acetic acid) which simultaneously deactivates catalyst. Thereafter, the sulfonated polymer is neutralized, e.g. by exposure to metal salts, organic amines, etc., and subjected to normal finishing operations, e.g. deashing, steam stripping, stabilizing and drying.

    摘要翻译: 公开了通过使用Friedel-Crafts或Ziegler型催化剂的溶液聚合制备的磺化聚合物的方法。 首先处理含有反应器流出物的聚合物,未反应的轻单体,稀释剂 - 溶剂和活性催化剂,以除去基本上所有未反应的轻单体,例如, 通过闪烁。 然后用同时使催化剂失活的磺化剂(例如乙酰硫酸盐和乙酸)处理流出物。 此后,中和磺化聚合物,例如 通过暴露于金属盐,有机胺等,并进行正常的精加工操作,例如, 脱水,汽提,稳定和干燥。

    Coating a substrate with an ionomer
    10.
    发明授权
    Coating a substrate with an ionomer 失效
    用离聚物涂覆基材

    公开(公告)号:US5190797A

    公开(公告)日:1993-03-02

    申请号:US720042

    申请日:1991-06-24

    IPC分类号: B01J2/00 B01J2/28 C05G3/00

    CPC分类号: B01J2/28 B01J2/006 C05G3/0029

    摘要: The present invention relates to a process for the encapsulation of a solid substrate with a neutralized sulfonated polymer, which comprises the steps of: (a) forming a solution of a non-conjugated, diene polymer in a solvent selected from the group consisting of aliphatic, aromatic hydrocarbons and mixtures thereof; (b) contacting the solution of the unsaturated polymer with a sulfonating agent at a sufficient temperature and for a sufficient period of time to form a solution of a sulfonated polymer containing free acid; (c) forming a solution of a base selected from the group consisting of alkali metal hydroxides and mixtures thereof in a mixtrue of an aliphatic alcohol and a hydrocarbon, the hydrocarbon being selected from the group consisting of aliphatic and aromatic hydrocarbons and mixtures thereof; (d) adding the solution of base to the solution of sulfonated polymer in an amount sufficient to neutralize the polymer and the free acid, thereby forming a coating solution; (e) contacting the solid substrate with the coating solution while removing the solvent therefrom, thereby forming an encapsulated substrate. In a preferred embodiment, the solvent removed during step (e) is recovered and distilled to separate the solvent into at least two fractions, a fraction containing substantially hydrocarbon and an alcohol containing fraction. The separated solvents are then recycled to dissolve the polymer in step (a) and to dissolve the base in step (c).

    摘要翻译: 本发明涉及用中和的磺化聚合物包封固体基质的方法,其包括以下步骤:(a)在选自脂肪族的溶剂中的溶剂中形成非共轭二烯聚合物的溶液 ,芳族烃及其混合物; (b)在足够的温度下将不饱和聚合物的溶液与磺化剂接触足够的时间以形成含有游离酸的磺化聚合物的溶液; (c)在脂族醇和烃的混合物中形成选自碱金属氢氧化物及其混合物的碱的溶液,所述烃选自脂族和芳族烃及其混合物; (d)将碱溶液以足以中和聚合物和游离酸的量向磺化聚合物溶液中加入,从而形成涂布溶液; (e)将固体基质与涂布溶液接触,同时从其中除去溶剂,由此形成封装的基材。 在优选的实施方案中,回收步骤(e)中除去的溶剂并蒸馏以将溶剂分离成至少两个馏分,基本上含有烃和含醇的馏分。 然后将分离的溶剂再循环以在步骤(a)中溶解聚合物并在步骤(c)中溶解碱。