Polymers containing repeating cycloketonic units, and method for
obtaining them
    2.
    发明授权
    Polymers containing repeating cycloketonic units, and method for obtaining them 失效
    含有重复环丙基单元的聚合物及其获得方法

    公开(公告)号:US5369187A

    公开(公告)日:1994-11-29

    申请号:US71517

    申请日:1993-06-03

    CPC分类号: C08C19/00 C08C19/10

    摘要: Polymers having a very good combination of chemical, mechanical and process properties, and particularly useable either alone or as mixtures, as high-tenacity thermoplastic polymer and as elastomers or elastomeric modifiers, contain, randomly distributed along their chain, repeating cycloketonic structural units having the following general formula (I): ##STR1## wherein: A represents a tetravalent aliphatic or cycloaliphatic, substituted or non-substituted moiety containing a total number of from 4 to 50, preferably from 4 to 20, carbon atoms.Such polymers can be prepared by means of a process which comprises reacting, in a liquid media, a polydiene containing adjacent structural units derived from the 1,4-cis polymerization of conjugated dienes, with carbon monoxide, in the presence of free radical generating compounds and, optionally, a compound capable of acting as a hydrogen donor.

    摘要翻译: 作为高韧性热塑性聚合物和弹性体或弹性体改性剂,具有非常好的化学,机械和加工性能的组合,特别是可单独使用或作为混合物使用的聚合物包含沿着它们的链无规分布的重复的环酮结构单元, 通式(I):其中:A表示含有总数为4至50,优选4至20个碳原子的四价脂族或脂环族,取代或未取代的部分。 这样的聚合物可以通过一种方法制备,该方法包括使液体介质中含有衍生自共轭二烯的1,4-顺式聚合的相邻结构单元的聚二烯与一氧化碳在存在自由基产生化合物 和任选的能够充当氢供体的化合物。

    Polyester compositions with a high crystallization rate
    3.
    发明授权
    Polyester compositions with a high crystallization rate 失效
    具有高结晶速率的聚酯组合物

    公开(公告)号:US5334343A

    公开(公告)日:1994-08-02

    申请号:US850041

    申请日:1992-03-12

    CPC分类号: C08K5/12

    摘要: Polyester compositions with a high crystallization rate obtained by mixing, at a high temperature, a polyester resin with at least one organic compound having the general formula:ROOC--Ar--OOC--Ar'--COO--Ar--COOR (I)where R represents a hydrogen atom or a C.sub.1 -C.sub.4 alkyl radical whereare Ar and Ar', either the same or different, represent a simple or condensed aromatic radical containing from 6 to 12 carbon atoms, and cooling the mixture thus obtained to room temperature.

    摘要翻译: 通过在高温下将聚酯树脂与至少一种具有以下通式的有机化合物:ROOC-Ar-OOC-Ar'-COO-Ar-COOR(I)混合而获得的具有高结晶速率的聚酯组合物,其中R表示 氢原子或C1-C4烷基,其中Ar和Ar'相同或不同,表示含有6至12个碳原子的简单或缩合的芳族基团,并将由此获得的混合物冷却至室温。

    Process for coating, with inorganic films, the surface of bodies
fabricated from polymeric materials
    4.
    发明授权
    Process for coating, with inorganic films, the surface of bodies fabricated from polymeric materials 失效
    用无机膜涂覆由聚合材料制成的主体表面的方法

    公开(公告)号:US5279853A

    公开(公告)日:1994-01-18

    申请号:US811968

    申请日:1991-12-23

    IPC分类号: C23C14/10 B05D5/06

    CPC分类号: C23C14/10

    摘要: A process for coating the surface of bodies fabricated from polymeric materials with inorganic films by depositing on the polymeric bodies a thin layer obtained by thermal evaporation, under vacuum, of glass/silicon mixtures. The process provides for improved control of surface-depending properties, such as wettability, haze resistance, gas and weight barrier properties and selective absorption of ultraviolet light.

    摘要翻译: 通过在聚合物体上沉积由玻璃/硅混合物在真空下热蒸发获得的薄层来涂覆由聚合材料制成的主体表面的方法。 该方法提供了改善表面依赖性质的控制,例如润湿性,防雾性,气体和重量阻隔性能以及紫外光的选择性吸收。

    Catalytic system and system for copolymerizing carbon monoxide with one
or more olefins
    6.
    发明授权
    Catalytic system and system for copolymerizing carbon monoxide with one or more olefins 失效
    用于将一氧化碳与一种或多种烯烃共聚的催化体系和系统

    公开(公告)号:US5346873A

    公开(公告)日:1994-09-13

    申请号:US29476

    申请日:1993-03-11

    CPC分类号: C08G67/02

    摘要: A catalyst active in the preparation of alternating olefin/carbon monoxide (CO) copolymers is constituted by:(a) at least one salt of a metal of Group IB of the Periodic System,(b) a mono or bidentate ligand base containing one or two nitrogen or phosphorus atoms capable of linking to the metal atom by means of dative bonds,(c) a mineral or organic oxidizer agent.Also disclosed are the preparation of the catalyst and the use of said catalyst in alternated copolymerization of ethylene (C2) and/or other olefins with carbon monoxide (CO).

    摘要翻译: 在制备交替烯烃/一氧化碳(CO)共聚物中有活性的催化剂由以下组成:(a)至少一种周期系统IB族金属的盐,(b)含有一个或多个 能够通过二价键与金属原子连接的两个氮或磷原子,(c)矿物或有机氧化剂。 还公开了催化剂的制备和所述催化剂在乙烯(C2)和/或其它烯烃与一氧化碳(CO)的交替共聚中的用途。