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    • 37. 发明授权
    • Process for preparing a copolymer aqueous solution from which a catalyst
residue is removed
    • 制备除去催化剂残余物的共聚物水溶液的方法
    • US4433098A
    • 1984-02-21
    • US312821
    • 1981-10-19
    • Hiroyuki ItohTeruaki YamanashiHirosuke Imai
    • Hiroyuki ItohTeruaki YamanashiHirosuke Imai
    • C08F6/00C08F6/02C08F6/06C08F6/08C08F220/00C08F220/04C08F222/00C08F222/06C08F236/00C08F236/06
    • C08F6/02
    • A process involves preparing an aqueous solution of a diolefin-maleic anhydride copolymer prepared by solution polymerization, said aqueous solution being free of tetramethylsuccinonitrile (TMSN), a by-product resulting from the decomposition of azobisisobutyronitrile (AIBN) used as a polymerization initiator for the copolymerization of the diolefin-maleic anhydride copolymer. The aqueous solution free of TMNS is obtained without the separation of the copolymer from the polymerization liquid in which the copolymer was prepared. The process is composed of the two distillation steps, the first distillation being for the removal of a solvent for polymerization and the second distillation being for the removal of water as well as TMSN. The first and second distillation steps can be carried out in a continuous or discontinuous manner. The first distillation step is carried out after and/or during the addition of water or a basic aqueous solution, and the second distillation can be effected with or without the addition of such liquid. This process is particularly effective for removal of TMSN which is highly toxic and causes problems from the safety point of view.
    • 一种方法包括制备通过溶液聚合制备的二烯烃 - 马来酸酐共聚物的水溶液,所述水溶液不含作为用作聚合引发剂的偶氮二异丁腈(AIBN)分解产生的副产物四甲基琥珀腈(TMSN) 二烯烃 - 马来酸酐共聚物的共聚合。 在不将共聚物与制备共聚物的聚合液体分离的情况下得到不含TMNS的水溶液。 该方法由两个蒸馏步骤组成,第一次蒸馏用于除去聚合用溶剂,第二次蒸馏用于除去水以及TMSN。 第一和第二蒸馏步骤可以以连续或不连续的方式进行。 第一蒸馏步骤在加入水或碱性水溶液之后和/或之后进行,第二蒸馏可以在添加或不添加这种液体的情况下进行。 该方法对于去除高毒性并从安全角度引起问题的TMSN特别有效。
    • 38. 发明授权
    • Method for treating olefin polymer for removing catalyst
    • 处理烯烃聚合物以除去催化剂的方法
    • US4369306A
    • 1983-01-18
    • US240404
    • 1981-03-04
    • Akinori ToyotaNorio Kashiwa
    • Akinori ToyotaNorio Kashiwa
    • C08F6/00C08F4/62C08F6/02C08F6/06C08F10/00C08F6/08
    • C08F6/02
    • A method for treating an olefin polymer, which comprises contacting an olefin polymer obtained by polymerizing an olefin in the presence of a catalyst composed of (A) a highly active transition metal compound, (B) an organoaluminum compound and (C) a carbonyl- or Si-containing electron donor, with (D) an organometallic compound of a metal of Groups I to III of the periodic table after the polymerization. This method can markedly reduce the amount of an electron donor remaining in an olefin polymer after polymerization, the electron donor being an ingredient of a catalyst used in the polymerization and constituting the main cause of an offensive odor which the resulting polymer gives off.
    • 一种处理烯烃聚合物的方法,其包括在由(A)高活性过渡金属化合物,(B)有机铝化合物和(C)羰基化合物)组成的催化剂存在下使通过聚合烯烃获得的烯烃聚合物接触, 或含Si的电子给体,与(D)聚合后的元素周期表第I至III族金属的有机金属化合物。 该方法可以显着降低聚合后残留在烯烃聚合物中的电子给体的量,电子给体是聚合中使用的催化剂的成分,并且构成所得聚合物发出的恶臭的主要原因。
    • 39. 发明授权
    • Process for the purification of highly crystalline polyolefins
    • 纯化高结晶性聚烯烃的方法
    • US4195145A
    • 1980-03-25
    • US959806
    • 1978-11-13
    • Akinobu ShigaKiyoshi MatsuyamaMasahiro KakugoTakatoshi Suzuki
    • Akinobu ShigaKiyoshi MatsuyamaMasahiro KakugoTakatoshi Suzuki
    • C08F6/00C08F6/02C08F6/06C08F6/26C08F6/28
    • C08F6/26C08F6/02
    • A process for purifying propylene homopolymers or copolymers which comprises:(i) polymerizing or copolymerizing propylene with other unsaturated hydrocarbon monomers in liquid propylene in the presence of a catalyst system consisting essentially of (a) an activated titanium trichloride obtained by reducing titanium tetrachloride with an organo-aluminum compound followed by activation and (b) an organo-aluminum compound;(ii) introducing the resulting polymer slurry into an upper portion of a counter-current washing tower to counter-currently contact the polymer slurry with a C.sub.3 -C.sub.8 alcohol and liquid propylene, whereby said catalyst is deactivated and at the same time the propylene homopolymers or copolymers dissolved in the polymer slurry and the catalyst are removed by washing, wherein said alcohol is used in an amount 0.1 to 50 times by mole based on said organo-aluminum compound (b) and is supplied to the washing tower lower than the point of introduction of said polymer slurry, and said liquid propylene is supplied to a lower portion of the washing tower; and(iii) then after removing volatile monomers by flashing, contacting the powdery propylene homopolymers or copolymers with a gaseous epoxide at a temperature lower than melting point of said polymer or copolymer.
    • 一种用于纯化丙烯均聚物或共聚物的方法,其包括:(i)在液体丙烯中,在催化剂体系存在下,将丙烯与其它不饱和烃单体聚合或共聚,所述催化剂体系基本上由(a)通过将四氯化钛还原成四氯化钛得到的活化三氯化钛 有机铝化合物,然后活化,(b)有机铝化合物; (ii)将所得聚合物浆料引入逆流洗涤塔的上部,以与C3-C8醇和液体丙烯反应地接触聚合物浆料,由此所述催化剂失活,同时丙烯均聚物 或溶解在聚合物浆料中的共聚物和催化剂通过洗涤除去,其中所述醇的用量相对于所述有机铝化合物(b)为0.1至50倍摩尔量,并且供应至低于该点的洗涤塔 引入所述聚合物浆料,并将所述液态丙烯供应到洗涤塔的下部; 和(iii)然后在通过闪蒸除去挥发性单体之后,在低于所述聚合物或共聚物的熔点的温度下使粉末丙烯均聚物或共聚物与气态环氧化物接触。