Electrical insulating resin
    5.
    发明授权
    Electrical insulating resin 失效
    电绝缘树脂

    公开(公告)号:US4882389A

    公开(公告)日:1989-11-21

    申请号:US135078

    申请日:1987-12-18

    IPC分类号: C08F279/02 H05K1/03

    CPC分类号: C08F279/02 H05K1/0326

    摘要: A resin having a low dielectric constant obtained by heat-curing 100 parts by weight of a butadiene polymer containing in its polymer chain at least 50 mol% of a 1,2-butadiene unit having a double bond in its side chain and from 10 to 100 parts by weight of a vinyl compound having at least 3 vinyl groups in one molecule in the presence of an organic peroxide. Also disclosed is a resin having flame resistance obtained by heat-curing a blend of an organic peroxide with a composition comprising 100 parts by weight of a butadiene polymer containing in its polymer chain at least 50 mol% of a 1,2-butadiene unit having a double bond in its side chain, from 10 to 100 parts by weight of a vinyl compound having at least 3 vinyl groups in one molecule and at least one member selected from the compounds of the formulas I-IV: ##STR1## wherein X is H or CH.sub.3, Y is Br or Cl, A is --, --o--, --CO--, SO.sub.2, --CH.dbd.CH--, --C(CH.sub.3).sub.2 --or --(CH.sub.2 .sub.a --, ad each of m, n and a is an integer of from 1 to 4, in an amount of from 25 to 100 parts by weight in the case of the formulas I to III and from 25 to 200 parts by weight in the case of the formula IV.

    摘要翻译: 通过将100重量份的在其聚合物链中含有至少50摩尔%的侧链中具有双键的1,2-丁二烯单元的丁二烯聚合物加热固化而得到的介电常数低的树脂为10〜 100重量份在有机过氧化物存在下,在一个分子中具有至少3个乙烯基的乙烯基化合物。 还公开了具有阻燃性的树脂,其通过将有机过氧化物的共混物热固化,所述组合物包含100重量份的在其聚合物链中含有至少50摩尔%的具有至少50摩尔%的1,2-丁二烯单元的丁二烯聚合物, 其侧链中的双键,10至100重量份在一个分子中具有至少3个乙烯基的乙烯基化合物和至少一种选自式I-IV的化合物:(I) (IV)其中X为H或CH 3,Y为Br或Cl,A为 - , - , - CO - ,SO 2,-CH = CH- ,-C(CH 3)2 - 或 - (CH 2 - ,m,n和a各自为1至4的整数,其量为25至100重量份,在式I至 在式IV的情况下为25至200重量份。

    Process for producing a hermetic electric compressor
    8.
    发明授权
    Process for producing a hermetic electric compressor 失效
    密闭式电动压缩机的制造方法

    公开(公告)号:US5984647A

    公开(公告)日:1999-11-16

    申请号:US52982

    申请日:1998-04-01

    摘要: A process for producing a hermetic electric compressor for a refrigerating or air-conditioning apparatus using a refrigerant having a hydrofluorocarbon base which comprises a motor unit, a compressing unit driven by the motor unit and a sealed housing enclosing the motor unit and the compressing unit and stores a refrigeration oil on the bottom of the sealed housing, wherein a solventless varnish comprising a thermosetting resin having at least two (meth)acryloyl groups in one molecule, a low-viscosity vinyl or 1-alkylvinyl monomer having an ether or ester linkage as a reactive diluent and an organic peroxide as a reaction initiator is used as an insulating varnish to insulate and fix the magnet wires of the stator of the motor unit, and the solventless varnish is cured by heating at a temperature of from 153 to 180.degree. C. for from 0.5 to 3.5 hours.

    摘要翻译: 一种使用具有氢氟烃基底的制冷剂的制冷或空气调节装置的密闭式电动压缩机的制造方法,该制冷剂或空气调节装置包括马达单元,由马达单元驱动的压缩单元和封闭马达单元和压缩单元的密封壳体, 在所述密封壳体的底部存储冷冻机油,其中,包含在一分子中具有至少两个(甲基)丙烯酰基的热固性树脂的无溶剂清漆,具有醚或酯键的低粘度乙烯基或1-烷基乙烯基单体作为 使用反应性稀释剂和作为反应引发剂的有机过氧化物作为绝缘漆,以使马达单元的定子的电线绝缘和固定,并且将无溶剂清漆通过在153-180℃的温度下加热而固化 0.5至3.5小时。