Electrically conductive polyurethane elastomer
    12.
    发明授权
    Electrically conductive polyurethane elastomer 失效
    导电聚氨酯弹性体

    公开(公告)号:US5286570A

    公开(公告)日:1994-02-15

    申请号:US113629

    申请日:1993-08-31

    摘要: An electrically conductive polyurethane elastomer obtained by the reaction of a polytetramethylene ether glycol having the formula HO[(CH.sub.2).sub.4 O].sub.x H where x is from 8 to 41 and from about 20 to about 95 parts by weight per 100 parts by weight of the glycol of at least one diisocyanate, a sufficient amount of cross linking agents and chain extenders to provide a crosslinked elastomer and an amount of an asymmetric ionic quarternary ammonium salt having the formula: ##STR1## where R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are C.sub.n H.sub.2n+1 and 1.ltoreq.n.ltoreq.25 sufficient to provide a resistivity of from about 10.sup.7 to about 10.sup.11 ohm cm. In a preferred embodiment the asymmetric ionic quarternary ammonium salt is (3-lauramidopropyl) trimethylammonium sulfate.

    摘要翻译: 通过使具有式HO((CH 2)4 O)x H的聚四亚甲基醚二醇反应得到的导电聚氨酯弹性体,其中x为8至41,约20至约95重量份,相对于每100重量份的二醇 的至少一种二异氰酸酯,足量的交联剂和扩链剂以提供交联的弹性体和一定量的具有下式的不对称离子季铵盐:(*化学结构*)其中R 1,R 2,R 3,R 4, R5和R6是CnH2n + 1和1≤n≤25,足以提供约107至约1011欧姆厘米的电阻率。 在优选的实施方案中,不对称离子季铵盐是(3-月桂酰胺基丙基)三甲基硫酸铵。

    Electrically conductive elastomer
    13.
    发明授权
    Electrically conductive elastomer 失效
    导电弹性体

    公开(公告)号:US5286566A

    公开(公告)日:1994-02-15

    申请号:US113929

    申请日:1993-08-31

    摘要: An electrically conductive polyurethane elastomer obtained by the reaction of a polytetramethylene ether glycol having the formula HO[(CH.sub.2).sub.4 O].sub.x H where x is from 8 to 41 and from about 20 to about 95 parts by weight per 100 parts by weight of said glycol of at least one diisocyanate, a sufficient amount of chain extender and cross linking agents to provide a crosslinked elastomer and an amount of an asymmetric ionic quarternary ammonium salt having the formula: ##STR1## where R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are C.sub.n H.sub.2n+1 and 1.ltoreq.n.ltoreq.25 sufficient to provide a D.C. volume resistivity of from about 10.sup.7 to about 10.sup.11 ohm cm. In a preferred embodiment the asymmetric ionic quarternary ammonium salt is hexadecyl ethyl dimethyl ammonium ethyl sulfate.

    摘要翻译: 通过使式HO((CH 2)4 O)x H的聚四亚甲基醚二醇反应获得的导电聚氨酯弹性体,其中x为8至41,约20至约95重量份,相对于每100重量份所述二醇 的至少一种二异氰酸酯,足够量的增链剂和交联剂以提供交联的弹性体和一定量的具有下式的不对称离子季铵盐:(*化学结构*)其中R 1,R 2,R 3,R 4和 R5是CnH2n + 1和1≤n≤25,足以提供约107至约1011欧姆厘米的DC体积电阻率。 在优选的实施方案中,不对称离子季铵盐是十六烷基乙基二甲基铵乙基硫酸盐。

    Electrically conductive polyurethane elastomer
    14.
    发明授权
    Electrically conductive polyurethane elastomer 失效
    导电聚氨酯弹性体

    公开(公告)号:US5259990A

    公开(公告)日:1993-11-09

    申请号:US37145

    申请日:1993-03-25

    摘要: An electrically conductive polyurethane elastomer obtained by the reaction of a polytetramethylene ether glycol having the formula HO[(CH.sub.2).sub.4 O].sub.x H where x is from 8 to 41 and from about 20 to about 95 parts by weight per 100 parts by weight of the glycol of at least one diisocyanate, a sufficient amount of cross linking agents and chain extenders to provide a crosslinked elastomer and an amount of an asymmetric ionic quarternary ammonium salt having the formula: ##STR1## Where R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are C.sub.n H.sub.2n+1 and 1.ltoreq.n.ltoreq.25 sufficient to provide a resistivity of from about 10.sup.7 to about 10.sup.11 ohm cm. In a preferred embodiment the asymmetric ionic quarternary ammonium salt is (3-lauramidopropyl) trimethylammonium sulfate.

    摘要翻译: 通过使具有式HO [(CH 2)4 O] x H的聚四亚甲基醚二醇反应获得的导电聚氨酯弹性体,其中x为8至41,约20至约95重量份,相对于每100重量份的二醇 的至少一种二异氰酸酯,足量的交联剂和扩链剂以提供交联弹性体和一定量的具有下式的不对称离子季铵盐:其中R 1,R 2,R 3,R 4,R 5和R 6 是足够提供约107至约1011欧姆厘米的电阻率的Cn H2n + 1和1

    Electrically conductive elastomer
    15.
    发明授权
    Electrically conductive elastomer 失效
    导电弹性体

    公开(公告)号:US5259989A

    公开(公告)日:1993-11-09

    申请号:US37144

    申请日:1993-03-25

    摘要: An electrically conductive polyurethane elastomer obtained by the reaction of a polytetramethylene ether glycol having the formula HO[(CH.sub.2).sub.4 O].sub.x H where x is from 8 to 41 and from about 20 to about 95 parts by weight per 100 parts by weight of said glycol of at least one diisocyanate, a sufficient amount of chain extender and cross linking agents to provide a crosslinked elastomer and an amount of an asymmetric ionic quarternary ammonium salt having the formula: ##STR1## where R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are C.sub.n H.sub.2n+1 and 1.ltoreq.n.ltoreq.25 sufficient to provide a D.C. volume resistivity of from about 10.sup.7 to about 10.sup.11 ohm cm. In a preferred embodiment the asymmetric ionic quarternary ammonium salt is hexadecyl ethyl dimethyl ammonium ethyl sulfate.

    摘要翻译: 通过使具有式HO [(CH 2)4 O] x H的聚四亚甲基醚二醇反应获得的导电聚氨酯弹性体,其中x为8至41,约20至约95重量份,相对于每100重量份所述二醇 的至少一种二异氰酸酯,足够量的增链剂和交联剂以提供交联弹性体和一定量的具有下式的不对称离子季铵盐:其中R1,R2,R3,R4和R5是Cn H2n + 1和1≤n≤25足以提供约107至约1011欧姆厘米的DC体积电阻率。 在优选的实施方案中,不对称离子季铵盐是十六烷基乙基二甲基铵乙基硫酸盐。

    Liquid electrophotographic developers
    17.
    发明授权
    Liquid electrophotographic developers 失效
    液体电子照相显影剂

    公开(公告)号:US4197211A

    公开(公告)日:1980-04-08

    申请号:US510878

    申请日:1974-10-01

    IPC分类号: G03G9/13 G03G9/00

    CPC分类号: G03G9/131

    摘要: Development of an electrostatic latent image is obtained with a chemically stable, nonaqueous, ambipolar, liquid developer comprising an oleaginous vehicle, solid colorant particles, a dispersant soluble in the liquid developer which is capable of substantially supressing background deposits, and a fixing agent miscible with the liquid which penetrates the copy paper.

    摘要翻译: 通过化学稳定的非水性双极液体显影剂获得静电潜像的显影,其包含油性载体,固体着色剂颗粒,可溶于液体显影剂的分散体,其能够基本上抑制背景沉积物,以及可与 透过复印纸的液体。