Polyether-copolycarbonates for dialysis membranes
    51.
    发明授权
    Polyether-copolycarbonates for dialysis membranes 失效
    用于透析膜的聚醚 - 共聚碳酸酯

    公开(公告)号:US4735721A

    公开(公告)日:1988-04-05

    申请号:US840179

    申请日:1986-03-17

    摘要: The present invention is directed to a process for the preparation of a segmented, aliphatic-aromatic polyether-copolycarbonate containing structural units conforming to ##STR1## wherein --D-- is a diphenolate radical and units conforming to ##STR2## wherein --O--Polyether--O-- is an aliphatic polyether-diolate radical, by the phase boundary process in which aliphatic polyether diol and a mixture of dihydroxy compounds are reacted with a carbonic acid halide which is employed in molar excess in relation to the dihydroxy compounds and in which the aqueous phase is kept at a pH value of at least 13 and where the polycondensation reaction is carried out in a reactor by addition of an amine catalyst.The invention is further directed to the polyether polycarbonate which is obtained by the process and to the preparation of membranes from said polyether copolycarbonate.

    摘要翻译: 本发明涉及一种制备分段的脂族 - 芳族聚醚 - 共聚碳酸酯的方法,其包含符合的结构单元,其中-D-是二酚盐基团和符合的单元,其中-O-聚醚 - O-是脂族聚醚 - 二醇酯基,通过相位过程,其中脂族聚醚二醇和二羟基化合物的混合物与相对于二羟基化合物摩尔过量使用的碳酸卤化物反应,其中水性 相位保持在至少13的pH值,并且其中缩聚反应在反应器中通过加入胺催化剂进行。 本发明还涉及通过该方法获得的聚醚聚碳酸酯和从所述聚醚共聚碳酸酯制备膜。

    Foils of polyacetylene
    53.
    发明授权
    Foils of polyacetylene 失效
    聚乙炔箔

    公开(公告)号:US4408027A

    公开(公告)日:1983-10-04

    申请号:US288887

    申请日:1981-07-31

    摘要: Process for the production of a suspension of polyacetylene in the form of particles having a diameter of from 0.01 to 1 mm and having a great number of fibrous appendices comprising introducing acetylene in an organic suspending agent under constant stirring, in the presence of an aluminum-containing organometallic mixed catalyst in an amount corresponding to 10 to 100 m moles aluminium per liter suspending agent, at temperatures of from -100.degree. to 80.degree. C., until a maximum of 10 g, preferably 1 to 3 g of polyacetylene per liter of suspending agent have been formed.

    摘要翻译: 制备直径为0.01〜1mm,具有大量纤维附着物的聚乙炔悬浮液的方法,其包括在持续搅拌下在有机悬浮剂中,在铝 - 含有有机金属混合催化剂,其数量相当于每升悬浮剂10-100摩尔铝,在-100至80℃的温度下,直到最大值为10克,优选1至3克聚乙炔/升 悬浮剂已经形成。

    Coating compound, a process for its preparation and its use for the
production of coatings
    60.
    发明授权
    Coating compound, a process for its preparation and its use for the production of coatings 失效
    涂料化合物,其制备方法及其在涂料生产中的应用

    公开(公告)号:US5552477A

    公开(公告)日:1996-09-03

    申请号:US204183

    申请日:1994-03-04

    摘要: An aqueous two-component coating agent whose binder consists essentially of a combination of a) a polyol component present dissolved and/or dispersed in water comprising a1) at least one water-dilutable polymerisation resin or polycondensation resin with a molecular weight Mn of over 500 possessing hydroxyl groups and a2) a reactive diluent consisting of at least one water-soluble compound with a molecular weight Mn of under 500 capable of reacting with isocyanate groups and b) a polyisocyanate component with a viscosity at 23.degree. C. of from 50 to 10 000 mPa present emulsified in the aqueous solution or dispersion, a method for producing such coating agents wherein the said polyisocyanate component is emulsified in the said aqueous solution or dispersion with the optional incorporation of auxiliary substances and additives in the system prior to adding the polyisocyanate, and the use of the coating agents for the production of air-drying and/or heat-drying coatings.

    摘要翻译: PCT No.PCT / EP92 / 01983 Sec。 371日期1994年3月4日 102(e)1994年3月4日PCT PCT 1992年8月28日PCT公布。 公开号WO93 / 05087 日期1993年3月18日一种水性双组分涂布剂,其粘合剂基本上由以下组合组成:a)溶解和/或分散在水中的多元醇组分,其包含a1)至少一种水可稀释聚合树脂或缩聚树脂与分子 重量Mn超过500具有羟基,和a2)由至少一种分子量为500以下的可与异氰酸酯基反应的水溶性化合物组成的反应性稀释剂,和b)在23℃下的粘度的多异氰酸酯组分 在水溶液或分散体中乳化的50至10000立方厘米的方法,制备这种涂料的方法,其中所述多异氰酸酯组分在所述水溶液或分散体中乳化,并且可选地将辅助物质和添加剂并入系统中 在加入多异氰酸酯之前,以及使用涂布剂来生产空气干燥和/或加热干燥涂层。