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    • 9. 发明授权
    • Exclusive access control apparatus and method
    • 独家访问控制装置和方法
    • US07243229B2
    • 2007-07-10
    • US10261767
    • 2002-10-02
    • Nobuhiro MakiNaoko IwamiHiroshi YamadaHiroshi Kurokawa
    • Nobuhiro MakiNaoko IwamiHiroshi YamadaHiroshi Kurokawa
    • H04L9/00
    • G06F3/0613G06F3/0637G06F3/067H04L67/1097Y10S707/99932
    • A computing system and an exclusive access control method are provided for preventing degraded performance of a network caused by exclusive access control, and for permitting a computer to exclusively access a storage area irrespective of whether a storage has an exclusive access control function. In the computing system in which a plurality of computers and an external storage device storing shared data are connected through a relay, exclusive access control is executed by a device other than the storage. Specifically, the relay having a virtualizing function is instructed to execute exclusive access control. The relay has information indicating whether a storage area on the storage is an exclusive access area, so that the relay determines based on this information whether an access request received from a computer requests an access to an exclusive access area, and executes exclusive access control when it is an access request.
    • 提供了一种计算系统和专用访问控制方法,用于防止由专用访问控制引起的网络性能降低,并且允许计算机独占访问存储区域,而不管存储是否具有独占访问控制功能。 在存储有共享数据的多台计算机和外部存储装置通过中继连接的计算系统中,除存储装置以外的装置执行专用访问控制。 具体地说,指示具有虚拟化功能的中继器执行独占访问控制。 继电器具有指示存储器上的存储区域是否为独占访问区域的信息,使得中继站基于该信息确定从计算机接收到的访问请求是否请求对专用访问区域的访问,并且当执行独占访问控制时 它是一个访问请求。
    • 10. 发明授权
    • Method for producing vinyl aromatic resin composition
    • 乙烯基芳族树脂组合物的制造方法
    • US4732924A
    • 1988-03-22
    • US881118
    • 1986-07-01
    • Eiichi TeradaHiroshi KurokawaShigemi Kawazoe
    • Eiichi TeradaHiroshi KurokawaShigemi Kawazoe
    • C08F279/02C08F285/00C08L51/04
    • C08F279/02C08F285/00
    • Disclosed is a method for producing a vinyl aromatic resin composition containing a rubber in a disposed state which comprises from 60 to 90% by weight of a copolymer of a vinyl aromatic monomer with an unsaturated dicarboxylic anhydride in which the content of the vinyl aromatic monomer as a monomer unit is from 70 to 98 mol % and the content of the unsaturated dicarboxylic anhydride as a monomer unit is from 2 to 30 mol %, from 10 to 35% by weight of a graft copolymer and from 0 to 9% by weight of a diene based rubber, by copolymerizing the vinyl aromatic monomer with the unsaturated dicarboxylic anhydride in the presence of the diene based rubber, wherein said method comprises.(1) mixing (i) from 2 to 25% by weight of a graft copolymer consisting of (a) from 50 to 85% by weight of a polymer main chain containing a butadiene monomer unit in an amount of 50% by weight or more, (b) from 40 to 5% by weight of a polymethacrylate side chain attached by graft-polymerization to the polymer main chain (a), and (c) from 0 to 40% by weight of a polystyrene side chain attached by graft-polymerization to the polymer main chain (a), orfrom 2 to 25% by weight in total of the graft copolymer and a diene based rubber, with (ii) from 98 to 75% by weight of a vinyl aromatic monomer,(2) adding (iii) an unsaturated dicarboxylic anhydride to the resulting mixture, and(3) continuing copolymerization reaction of the mixture until the conversion of the vinyl aromatic monomer reaches a value within the range of from 30 to 80% by weight. The resin composition produced by this method can be molded into a molded article having an excellent glossiness, impact strength and heat resistance.
    • 公开了一种含有橡胶的乙烯基芳香族树脂组合物的制造方法,其包含60〜90重量%的乙烯基芳族单体与不饱和二羧酸酐的共聚物,其中乙烯基芳族单体的含量为 单体单元为70〜98摩尔%,作为单体单元的不饱和二羧酸酐的含量为2〜30摩尔%,10〜35重量%的接枝共聚物和0〜9重量% 通过在二烯基橡胶的存在下使乙烯基芳族单体与不饱和二羧酸酐共聚而成的二烯系橡胶,其中所述方法包括。 (1)将(i)2至25重量%的接枝共聚物混合,所述接枝共聚物由(a)50-85重量%的含有50重量%以上的丁二烯单体单元的聚合物主链组成 ,(b)40-5重量%的通过接枝聚合连接到聚合物主链(a)上的聚甲基丙烯酸酯侧链,和(c)0-40重量%的通过接枝聚合物连接的聚苯乙烯侧链, 聚合物主链(a)的聚合,或接枝共聚物和二烯基橡胶的总计为2〜25重量%,(ii)98〜75重量%的乙烯基芳香族单体,(2) 向所得混合物中加入(iii)不饱和二羧酸酐,和(3)混合物的持续共聚反应,直到乙烯基芳族单体的转化率达到30至80重量%的范围内。 通过该方法制造的树脂组合物可以模塑成具有优异的光泽度,冲击强度和耐热性的模制品。