Thermoplastic siloxane-polyester block copolymers
    1.
    发明授权
    Thermoplastic siloxane-polyester block copolymers 失效
    热塑性硅氧烷聚合物嵌段共聚物

    公开(公告)号:US3701815A

    公开(公告)日:1972-10-31

    申请号:US3701815D

    申请日:1971-01-20

    IPC分类号: C08G77/445 C08L67/02

    摘要: THIS INVENTION RELATES TO THERMOPLASTIC SILOXANE-POLYESTER BLOCK COPOLYMERS HAVING SIOLOXANE BLOCKS THAT ARE LINEAR AND CONTAIN DIHYDROCARBYLSIOLOXANE GROUPS AND POLYESTER BLOCKS THAT ARE LINEAR AND CONTAIN GROUPS DERIVED FROM AROMATIC DICARBOXYLIC ACIDS AND DIOLS. THE BLOCK COPOLYMERS OF THIS INVENTION ARE ELASTOMERIC OR RIGID, DEPENDING ON THEIR SPECIFIC COMPOSITION, EVEN THROUGH THERMOPLASTIC AND HAVE EXCEPTIONAL THERMAL AND OXIDATIVE STABILITY. THE BLOCK COPOLYMERS ARE USEFUL, FOR EXAMPLE, AS MOLDING RESINS AND EXTRUDING RESINS.

    Monoamides of monoamino diaryl sulfones
    6.
    发明授权
    Monoamides of monoamino diaryl sulfones 失效
    单胺二氧化物单体

    公开(公告)号:US3696132A

    公开(公告)日:1972-10-03

    申请号:US3696132D

    申请日:1970-04-06

    IPC分类号: C08G69/20 C07C103/12

    CPC分类号: C08G69/20

    摘要: Compounds of the structure WHEREIN Ar is a mono- or polynuclear aromatic radical, and R and R'' are C1 to C20 hydrocarbon radicals. These compounds are useful as initiators or activators in the anionic polymerization of lactam monomers.

    摘要翻译: 结构化合物WHEREIN Ar是单或多核芳族基团,R和R'是C 1至C 20烃基。 这些化合物可用作内酰胺单体的阴离子聚合中的引发剂或活化剂。