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    • 9. 发明授权
    • Graded-refractive-index optical plastic material and method for its
production
    • 渐变折射率光学塑料材料及其制造方法
    • US6166125A
    • 2000-12-26
    • US164371
    • 1998-10-01
    • Norihide SugiyamaHidenobu MurofushiTakashi OkazoeMasayuki TamuraShin TatematsuJun Irisawa
    • Norihide SugiyamaHidenobu MurofushiTakashi OkazoeMasayuki TamuraShin TatematsuJun Irisawa
    • G02B1/04G02B6/02
    • G02B1/046
    • A graded-refractive-index optical plastic material comprising an amorphous fluorine-containing polymer (A) having substantially no C--H bond, and at least one fluorine-containing polycyclic compound (B) having a refractive index higher by at least 0.005 than the fluorine-containing polymer (A), wherein the fluorine-containing polycyclic compound (B) is distributed in the fluorine-containing polymer (A) with a concentration gradient such that the concentration decreases in a direction of from the center to the periphery, and the fluorine-containing polycyclic compound (B) is at least one fluorine-containing polycyclic compound selected from the group consisting of the following compounds (B1), (B2) and (B3):(B1) a fluorine-containing non-condensed polycyclic compound having at least two fluorine-containing rings bonded by a bond containing at least one member selected from the group consisting of a triazine ring, an oxygen atom, a sulfur atom, a phosphorus atom and a metal atom, each of said fluorine-containing rings being a carbon ring or a heterocyclic ring and having a fluorine atom or a perfluoroalkyl group, said polycyclic compound having substantially no C--H bond;(B2) a fluorine-containing non-condensed polycyclic compound having at least three fluorine-containing rings bonded directly or by a bond containing a carbon atom, each of said fluorine-containing rings being a carbon ring or a heterocyclic ring and having a fluorine atom or a perfluoroalkyl group, said polycyclic compound having substantially no C--H bond;(B3) a fluorine-containing condensed polycyclic compound which is a condensed polycyclic compound composed of at least three carbon rings or heterocyclic rings, and which has substantially no C--H bond.
    • 包含基本上不含CH键的无定形含氟聚合物(A)和至少一种折射率高于含氟聚合物的折射率至少为0.005的含氟多环化合物(B)的渐变折射率光学塑料材料, 含氟聚合物(A),其中所述含氟多环化合物(B)以浓度梯度使得所述浓度从所述中心向周向的方向下降,并且所述氟 (B)是选自下列化合物(B1),(B2)和(B3)中的至少一种含氟多环化合物:(B1)含氟非缩合多环化合物,其具有 通过含有选自三嗪环,氧原子,硫原子,磷原子和金属原子中的至少一种的键的至少两个含氟环,各自为 所述含氟环是碳环或杂环,并且具有氟原子或全氟烷基,所述多环化合物基本上不含C-H键; (B2)具有至少三个含氟环的含氟非缩合多环化合物或者含有碳原子的键,所述含氟环是碳环或杂环,并且具有氟 原子或全氟烷基,所述多环化合物基本上不含CH键; (B3)由至少三个碳环或杂环构成的并且基本上不含C-H键的缩合多环化合物的含氟缩合多环化合物。
    • 10. 发明授权
    • Method for producing a hydrogen-containing chloromethane
    • 含氢氯甲烷的制造方法
    • US5334782A
    • 1994-08-02
    • US960423
    • 1992-12-23
    • Shinsuke MorikawaMasaru YoshitakeShin Tatematsu
    • Shinsuke MorikawaMasaru YoshitakeShin Tatematsu
    • B01J23/48B01J23/89C07C17/00C07C17/24C07C19/02C07C19/04
    • C07C17/23B01J23/48B01J23/8926
    • The present invention relates to a method for producing a hydrogen-containing chloromethane such as chloroform at high selectivity in good yield by reducing a polychloromethane such as carbon tetrachloride in the presence of a reduction catalyst.In the present invention, it is important to conduct the reduction reaction in a liquid phase, whereby formation of impurities such as polymers which deactivate the catalyst, can effectively be suppressed, and the high selectivity and high activity of the reduction catalyst can adequately be obtained.As the reduction catalyst, at least one member selected from elements of Groups 8, 9 and 10, such as ruthenium, rhodium, palladium and platinum, may suitably be employed. Also a catalyst comprising, as the main component, such an element and having at least one member of Group 11 elements such as copper, silver and gold added thereto, may also suitably be employed.In a case where the liquid phase reduction reaction is conducted continuously, it is preferred to adopt a fixed bed system, particularly a trickle bed system.The method of the present invention is valuable also as a method for converting carbon tetrachloride which is regulated from the standpoint of global environmental protection, to chloroform which is useful as raw material for various fluorine-containing compounds.
    • PCT No.PCT / JP92 / 00522 Sec。 371日期1992年12月23日 102(e)日期1992年12月23日PCT 1991年4月23日提交PCT公布。 第WO92 / 18447号公报 本发明涉及通过在还原催化剂的存在下还原多氯甲烷如四氯化碳,以高选择性以高产率生产含氢氯甲烷如氯仿的方法。 在本发明中,重要的是在液相中进行还原反应,从而可以有效地抑制催化剂失活的诸如聚合物等杂质的形成,能够充分获得还原催化剂的高选择性和高活性 。 作为还原催化剂,可以适当选择选自元素8,9和10中的至少一种,例如钌,铑,钯和铂。 还可以适当地使用包含作为主要成分的这种元素并且具有添加到其中的至少一种第11族元素​​如铜,银和金的元素的催化剂。 在连续进行液相还原反应的情况下,优选采用固定床系统,特别是滴流床系统。 本发明的方法作为从全球环境保护的角度将四氯化碳转化为可用作各种含氟化合物的原料的氯仿的方法也是有价值的。