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    • 22. 发明授权
    • Process for preparing methacrylimide-containing polymers
    • 制备含甲基丙烯酰亚胺的聚合物的方法
    • US4816524A
    • 1989-03-28
    • US857163
    • 1986-04-29
    • Hisao AnzaiHideaki MakinoIsao SasakiKozi NishidaMasaru Morimoto
    • Hisao AnzaiHideaki MakinoIsao SasakiKozi NishidaMasaru Morimoto
    • C08F8/32
    • C08F8/32
    • Methacrylimide-containing polymers are continuously produced by introducing 10 to 60 wt. % of an inert solvent, 90 to 40 wt. % of methacrylic acid, a methacrylic acid ester or a monomer mixture comprising at least 50 wt. % of methacrylic acid or a methacrylic acid ester, and a radical polymerization initiator and a molecular weight modifier into a polymerization reaction zone, converting at least 80 wt. % of the charged monomer to a polymer at 60.degree.-170.degree. C., adding a compound represented by the formula:R--NH.sub.2wherein R represents a hydrogen atom, an alkyl group having 1-12 carbon atoms, a cycloalkyl group having 7-11 carbon atoms or an aryl group having 6-10 carbon atoms,to the polymerization reaction liquid, carrying out reaction of the resulting mixture at 150.degree. to 300.degree. C. in an imidization reaction zone, and finally separating volatile substances from the reaction fluid.
    • 含有甲基丙烯酰胺的聚合物通过引入10至60wt。 %的惰性溶剂,90〜40wt。 %的甲基丙烯酸,甲基丙烯酸酯或包含至少50wt。 %的甲基丙烯酸或甲基丙烯酸酯,以及自由基聚合引发剂和分子量调节剂进入聚合反应区,将至少80wt。 加入到60℃-170℃的聚合物的%,加入由式R-NH 2表示的化合物,其中R表示氢原子,具有1-12个碳原子的烷基,具有7个 -11个碳原子或具有6-10个碳原子的芳基,在聚合反应液中,在酰亚胺化反应区中将所得混合物在150-300℃下进行反应,最后从反应中分离出挥发性物质 流体。
    • 30. 发明授权
    • Impact-resistant thermoplastic polyorganosiloxane-based graft copolymer
and process for producing same
    • 耐冲击热塑性聚有机硅氧烷基接枝共聚物及其制备方法
    • US4690986A
    • 1987-09-01
    • US904463
    • 1986-09-08
    • Isao SasakiAkira YanagaseYasunori KawachiTetsuya MayuzumiToshio ObaFumio Okada
    • Isao SasakiAkira YanagaseYasunori KawachiTetsuya MayuzumiToshio ObaFumio Okada
    • C08F30/00C08F30/08C08F283/00C08F283/12C08F290/00C08F299/08C09D151/08
    • C08F283/124C09D151/085
    • A polyorganosiloxane-based high-impact thermoplastic graft copolymer superior in impact resistance, light resistance, surface gloss and color fastness produced by the emulsion graft polymerization of at least one vinyl monomer on an emulsion-polymerized polyorganosiloxane which consists of90 to 99.8 mole % of an organosiloxane unit represented by the formulaR'.sub.2 SiO.sub.2/2 (I) wherein R' is the same or different and denotes methyl, ethyl, propyl, or phenyl,0.1 to 10 mole % of a unit derived from a graft-linking agent, said unit being represented by the formula ##STR1## wherein; R.sup.2 denotes methyl, ethyl, propyl, or phenyl; n denotes a number of 0, 1, and 2; and p denotes a number of 1 to 6, and0.1 to 10 mole % of a unit derived from a tetrafunctional silane crosslinking agent, said unit being represented by the formulaSiO.sub.4/2 (III),said polyorganosiloxane showing a degree of swelling of 5 to 15 in toluene, andsaid graft copolymer containing said polyorganosiloxane in an amount of 10 to 70% by weight; and a process for producing the said graft copolymer.
    • 通过在乳液聚合的聚有机硅氧烷上由至少一种乙烯基单体的乳液接枝聚合产生的抗冲击性,耐光性,表面光泽和色牢度优异的基于聚有机硅氧烷的高冲击热塑性接枝共聚物,其由90-99.8摩尔% 由式R'2SiO2 / 2(I)表示的有机硅氧烷单元,其中R'相同或不同,表示甲基,乙基,丙基或苯基,0.1-10摩尔%衍生自接枝交联剂的单元, 所述单元由式(II)表示,其中: R2表示甲基,乙基,丙基或苯基; n表示0,1和2的数; p表示1〜6的数,0.1〜10摩尔%的来自四官能性硅烷交联剂的单元,所述单元由式SiO 4/2(III)表示,所述聚有机硅氧烷的膨胀度为5 至15,并且所述含有所述聚有机硅氧烷的接枝共聚物的量为10-70重量%; 以及所述接枝共聚物的制造方法。