Organo(block- amide-siloxane)-(block-amide-imide) polymers
    6.
    发明授权
    Organo(block- amide-siloxane)-(block-amide-imide) polymers 失效
    有机(嵌段 - 酰胺 - 硅氧烷) - (嵌段酰胺 - 酰亚胺)聚合物

    公开(公告)号:US3887636A

    公开(公告)日:1975-06-03

    申请号:US42202473

    申请日:1973-12-05

    Applicant: GEN ELECTRIC

    CPC classification number: C08G69/00 C08G18/3821 C08G18/615 C08G77/455

    Abstract: Novel organo(block-amide-siloxane)-(block-amide-imide) polymers are prepared by a novel process comprising contacting an organodicarboxyterminated imide with an organodicarboxyterminated polysiloxane in the presence of an organodiisocyanate coupling agent. The resulting polymers are high molecular weight polymers having essentially linear recurring units comprising short chain amide-imide polymer blocks having the general formulas:

    OR,

    AND A LONG CHAIN AMIDE-SILOXANE POLYMER BLOCKS HAVING THE FORMULA:

    WHEREIN BOTH A AND B ARE POSITIVE NUMBERS, THE RATIO OF A/A+ B IS WITHIN THE RANGE OF FROM ABOUT 0.01 TO ABOUT 0.99, C IS A POSITIVE NUMBER WITHIN THE RANGE OF FROM ABOUT 0 TO ABOUT 500, AND X IS A POSITIVE NUMBER WITHIN THE RANGE OF FROM ABOUT 4 TO ABOUT 10,000. The novel polymers are readily dissolved in suitable solvents for the application of a protective polymer coating on wire and cable substrates, or for the application of polymer films which have improved adhesion to glass.

    Abstract translation: 新的有机(嵌段 - 酰胺 - 硅氧烷) - (嵌段 - 酰胺 - 酰亚胺)聚合物通过新的方法制备,包括在有机二异氰酸酯偶联剂存在下使有机二羧基封端的酰亚胺与有机二羧基封端的聚硅氧烷接触。 所得聚合物是具有基本线性重复单元的高分子量聚合物,其包含具有以下通式的短链酰胺 - 酰亚胺聚合物嵌段:

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