Ethylene-alkyne copolymers, their preparation and their use as additives
to petroleum distillates
    8.
    发明授权
    Ethylene-alkyne copolymers, their preparation and their use as additives to petroleum distillates 失效
    乙烯 - 炔烃共聚物,它们的制备及其作为石油馏分添加剂的用途

    公开(公告)号:US4417038A

    公开(公告)日:1983-11-22

    申请号:US327727

    申请日:1981-12-04

    摘要: Ethylene-alkyne copolymers and ethylene-alkyne-alkene terpolymers. The copolymers and terpolymers have a number-average molecular weight, determined by vapor phase osmometry, of from 500 to 500,000 and contain, as copolymerized units,(A) from 70 to 99 percent by weight of ethylene and(B) an acetylenically unsaturated compound of the formula (I)H--C.tbd.C--R.sup.1 Iwhere R.sup.1 is (OCH.sub.2 CH.sub.2).sub.n H or CH.sub.2 -R.sup.2, n is 1-20, R.sup.2 is -OH, -OCOR.sup.3 or -COOR.sup.3 and R.sup.3 is straight-chain or branched C.sub.1 -C.sub.10 -alkyl. The terpolymers contain, as copolymerized units, from 50 to 99 percent by weight of (A), from 0.5 to 30 percent by weight of (B) and, in addition, (C) from 0.5 to 49.5 percent by weight of an olefinically unsaturated ester of the formula (II) ##STR1## where R.sup.4 is H or CH.sub.3, R.sup.5 is -OOC-R.sup.6 or -COOR.sup.6 and R.sup.6 is straight-chain or branched C.sub.1 -C.sub.10 -alkyl. The copolymers and terpolymers are prepared in a continuous or batchwise polymerixation system at from 150.degree. to 350.degree. C. under a pressure of from 500 to 3,000 bar in the presence of from 200 to 4,000 mole ppm, based on monomers, of an organic peroxide which decomposes into free radicals. The copolymers and terpolymers can be used as additives to petroleum distillates.

    摘要翻译: 乙炔 - 炔共聚物和乙烯 - 炔烃三元共聚物。 共聚物和三元共聚物的数均分子量通过气相渗透压测定为500至500,000,并且包含作为共聚单元的(A)70-99重量%的乙烯和(B)炔属不饱和化合物 (I)HC 3BOND C-R1 I其中R1是(OCH2CH2)nH或CH2-R2,n是1-20,R2是-OH,-OCOR3或-COOR3,R3是直链或支链C1- C10烷基。 三元共聚物含有50〜99重量%的(A),0.5〜30重量%的(B),以及(C)0.5〜49.5重量%的烯属不饱和单体 式(II)的酯其中R4是H或CH3,R5是-OOC-R6或-COOR6,R6是直链或支链C1-C10-烷基。 共聚物和三元共聚物在连续或分批聚合体系中,在150-350℃的压力下,在200-4000摩尔ppm的存在下,基于单体,有机过氧化物 其分解成自由基。 共聚物和三元共聚物可用作石油馏分的添加剂。