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    • 13. 发明授权
    • Ultraviolet absorber and coating material
    • 紫外吸收剂和涂料
    • US5627227A
    • 1997-05-06
    • US609558
    • 1996-03-01
    • Masanobu SugaTsuyoshi AsanoNobuyuki Kuroda
    • Masanobu SugaTsuyoshi AsanoNobuyuki Kuroda
    • C09K3/00C07F7/08C08K5/544C09D5/00C09D5/32C09D201/00C07D249/00C08K5/3495
    • C07F7/0854C08K5/5442
    • An ultraviolet absorber contains as an effective component a compound represented by the formula: ##STR1## wherein R.sup.1 denotes a hydrogen atom, a halogen atom or an alkyl group having 1 to 10 carbon atoms, R.sup.2 denotes a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, R.sup.3 and R.sup.4 denote the same or different groups and denote an alkylene group having 1 to 10 carbon atoms, R.sup.5 to R.sup.9 denote the same or different groups and denote an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, and an aryl group having 6 to 10 carbon atoms, a hydroxyl group or a hydrogen atom, X denotes an amido bond (CONH), a urethane bond (OCONH) or an ester bond (COO), and n is an integer of n.gtoreq.0. A coating material contains the ultraviolet absorber.
    • 紫外线吸收剂作为有效成分含有由下式表示的化合物:其中,R1表示氢原子,卤素原子或碳原子数1〜10的烷基,R2表示氢原子或1价的烷基 至10个碳原子,R 3和R 4表示相同或不同的基团,表示碳原子数1〜10的亚烷基,R 5〜R 9表示相同或不同的基团,表示碳原子数1〜10的烷基,烷氧基 具有1至10个碳原子,具有6至10个碳原子的芳基,羟基或氢原子,X表示酰胺键(CONH),氨基甲酸酯键(OCONH)或酯键(COO),和 n是n> / = 0的整数。 涂料含有紫外线吸收剂。
    • 17. 发明授权
    • Process for preparing polyolefins
    • 聚烯烃的制备方法
    • US4410670A
    • 1983-10-18
    • US45961
    • 1979-06-06
    • Yoshio TajimaKazuo MatsuuraNobuyuki KurodaMituji Miyoshi
    • Yoshio TajimaKazuo MatsuuraNobuyuki KurodaMituji Miyoshi
    • C08F10/00C08F4/66
    • C08F10/00
    • This invention provides a process for preparing polyolefins using a new catalyst. According to this invention, .alpha.-olefins can be polymerized or copolymerized to have good stereoregularity and at a high activity by the use of such new catalyst. The new catalyst used in this invention consists of [A] a solid component obtained by contacting (1) a magnesium oxide, (2) an aluminum trihalide, (3) a hydroxy compound represented by the general formula ROH wherein R is an organic radical having 1 to 20 carbon atoms and (4) a titanium halide and/or an addition product of a titanium halide and an aromatic carboxylic acid ester, and [B] an organometallic compound and/or an addition product of an organometallic compound and an aromatic carboxylic acid ester; or it consists of the solid component of the above [A], the organometallic compound and/or the addition product of an organometallic compound and an aromatic carboxylic acid ester of the above [B], and [C] an aromatic carboxylic acid ester. The said catalyst is prepared, in one of the most preferred embodiments thereof, by using the solid component of the above [A] which is obtained by first co-pulverizing the compounds of the above (1),(2) and (3), then washing the co-pulverized product with an aromatic compound, separating the liquid phase to give a solid substance (a) and contacting the latter with the compound and/or the addition product of the above (4).
    • 本发明提供使用新催化剂制备聚烯烃的方法。 根据本发明,通过使用这种新的催化剂,α-烯烃可以聚合或共聚以具有良好的立构规整性和高活性。 本发明中使用的新型催化剂由[A]一种固体组分组成,该固体组分通过使(1)氧化镁,(2)三卤化铝,(3)由通式ROH表示的羟基化合物,其中R是有机基团 具有1至20个碳原子和(4)卤化钛和/或卤化钛和芳族羧酸酯的加成产物,和[B]有机金属化合物和/或有机金属化合物和芳族化合物的加成产物 羧酸酯; 或者由上述[A]的固体组分,有机金属化合物和/或上述[B]的有机金属化合物和芳族羧酸酯的加成产物和[C]芳族羧酸酯组成。 所述催化剂在其最优选的实施方案之一中,通过使用上述[A]的固体成分,其是通过首先共混上述(1),(2)和(3)的化合物而获得的, ,然后用芳族化合物洗涤共粉碎产物,分离液相,得到固体物质(a),并使其与上述(4)的化合物和/或加成产物接触。