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    • 5. 发明授权
    • Electrical insulating resin
    • 电绝缘树脂
    • US4882389A
    • 1989-11-21
    • US135078
    • 1987-12-18
    • Makoto DoiHiroyukio NakajimaFumiyuki MiyamotoSeiji OkaMitsuhiro Nonogaki
    • Makoto DoiHiroyukio NakajimaFumiyuki MiyamotoSeiji OkaMitsuhiro Nonogaki
    • C08F279/02H05K1/03
    • C08F279/02H05K1/0326
    • 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.
    • 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。