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10 条记录 (耗时 0.013 秒)

    COPOLYAMIDE THERMOPLASTIQUE, COMPOSITION A BASE DE CELUI-CI
    1.
    发明公开
    COPOLYAMIDE THERMOPLASTIQUE, COMPOSITION A BASE DE CELUI-CI 失效
    热塑性共成型材料本

    公开(公告)号：EP0996659A1

    公开(公告)日：2000-05-03

    申请号：EP98937543.1

    申请日：1998-06-24

    申请人： Rhodia Engineering Plastics Srl

    发明人： DI SILVESTRO, Giuseppe ,  GUAITA, Cesare ,  SPERONI, Franco ,  YUAN, Cuiming ,  ZHANG, Haichun

    IPC分类号： C08G69/00 ,  C08G69/26 ,  C08G69/32 ,  C08G83/00

    CPC分类号： C08G83/003 ,  C08G69/00 ,  C08G69/265 ,  C08G69/32

    摘要： The invention concerns a thermoplastic copolyamide and a composition comprising as matrix said thermoplastic copolyamide, and a method for making such a thermoplastic copolyamide. More particularly it concerns a copolyamide of the statistical tree type resulting from the reaction between a plurifunctional monomer comprising at least three reactive functions to form an amide function, said functions being of two different types, and bifunctional monomers conventionally used in making linear polyamides. The resulting copolyamide has a very low softness index in molten state compared to the linear polyamide and improved shock-resistant properties. The invention also concerns methods for making these copolyamides and compositions for moulding, extruding or injecting parts. Said compositions comprise fillers and additives and said copolyamide as matrix.

    POLYAMIDES A FLUIDITE ELEVEE, SON PROCEDE DE FABRICATION, COMPOSITIONS COMPRENANT CE COPOLYAMIDE
    3.
    发明公开
    POLYAMIDES A FLUIDITE ELEVEE, SON PROCEDE DE FABRICATION, COMPOSITIONS COMPRENANT CE COPOLYAMIDE 有权
    具有高流动性和PRODUCING组合物本共方法聚酰胺

    公开(公告)号：EP1086161A1

    公开(公告)日：2001-03-28

    申请号：EP99926415.3

    申请日：1999-05-25

    申请人： Rhodia Engineering Plastics Srl

    发明人： DI SILVESTRO, Giuseppe ,  SPERONI, Franco ,  YUAN, Cuiming ,  ZHANG, Haichun

    IPC分类号： C08G69/14 ,  C08L77/00

    CPC分类号： C08G69/36 ,  C08G69/04 ,  C08L77/00

    摘要： The invention concerns a polyamide comprising macromolecular chains having a star-shaped configuration, a method for making said polyamide and compositions comprising same. More particularly, the invention concerns a method for making a polyamide comprising linear macromolecular chains and star-shaped macromolecular chains with control of the star-shaped chain concentration in the polymer. Said control is obtained by using besides the polyfunctional polymers and amino acids or lactams a polyfunctional comonomer comprising either acid functions or amine functions. The resulting polyamide has optimal mechanical and rheological properties for improving the speed and quality of mould filling and for producing mouldable compositions comprising high filler factors.