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    • 7. 发明授权
    • Herbicidal compositions containing 3-isoxazolylurea derivatives
    • 含有3-异丙唑基衍生物的除草剂组合物
    • US4111680A
    • 1978-09-05
    • US836238
    • 1977-09-23
    • Hisajiro YukinagaShinzaburo SumimotoIchiro IshizukaJitsuo Sugita
    • Hisajiro YukinagaShinzaburo SumimotoIchiro IshizukaJitsuo Sugita
    • C07D261/14C07D261/20A01N9/22
    • C07D261/14C07D261/20
    • Isoxazole derivatives represented by the formula: ##STR1## wherein R represents hydrogen, alkyl group, or aryl group, R.sup.1 represents hydrogen, or alkyl group, R.sup.2 represents acyl group, a ##STR2## group [R.sup.3 and R.sup.4 each represent hydrogen, alkyl group, alkenyl group, alkynyl group, aralkyl group, aryl group, alkoxy group, or alkylthio group; or optionally R.sup.3 and R.sup.4 are combined with each other directly or indirectly including another hetero atom (nitrogen, oxygen, or sulfur) to form a nitrogen-containing ring], or a --CO--Y--R.sup.5 group[R.sup.5 represents alkyl group, alkenyl group, alkynyl group, aralkyl group, or aryl group, and Y represents oxygen, or sulfur], and X represents hydrogen, alkyl group, or halogen, or R and X are optionally combined each other to form an alkylene group, said alkyl group, aralkyl group, and aryl group each being optionally substituted with one or more members selected from halogen, alkyl group, alkoxy group, nitro group, and hydroxy group, are prepared by 11 routes. The isoxazole derivatives are useful as herbicides.
    • 由下式表示的异恶唑衍生物:其中R表示氢,烷基或芳基,R 1表示氢或烷基,R 2表示酰基,基团[R 3和R 4各自表示氢,烷基 烯基,炔基,芳烷基,芳基,烷氧基或烷硫基; 或任选的R 3和R 4彼此直接或间接地包含另外的杂原子(氮,氧或硫)以形成含氮环]或-CO-Y-R 5基[R 5表示烷基,烯基 基团,炔基,芳烷基或芳基,Y表示氧或硫],X表示氢,烷基或卤素,或R和X任选地相互结合形成亚烷基,所述烷基 芳烷基,芳基,芳基,可以被选自卤素,烷基,烷氧基,硝基,羟基中的一个以上的任意一个取代。 异恶唑衍生物可用作除草剂。
    • 9. 发明授权
    • Method for producing a thermoplastic polymeric sheet
    • 热塑性聚合物片材的制造方法
    • US4594203A
    • 1986-06-10
    • US588963
    • 1984-03-13
    • Satoru HagiwaraIchiro IshizukaKazuo Okabe
    • Satoru HagiwaraIchiro IshizukaKazuo Okabe
    • B29C47/88B29C71/04
    • B29C47/888B29C47/0021B29C47/8845B29C47/887B29C47/8875B29C47/0019
    • The present invention relates to a method for producing a thermoplastic polymeric sheet, wherein a molten thermoplastic polymer is extruded from an extrusion die in the form of a sheet onto a moving quenching member, with an electric potential difference being established between the surface of the moving quenching member and the extrusion die, whereby the polymer is caused to electrostatically solidify and adhered to the surface of the quenching member. The contact area of the polymeric sheet with the moving quenching member is held in an atmosphere of a gas which posesses better insulating properties than standard air. Thus the present invention provides a useful method that can produce, at higher speeds than conventional method, polymer sheets of high surface quality which avoid the operational problems encountered in the conventional methods.
    • 本发明涉及一种用于制造热塑性聚合物片材的方法,其中将熔融的热塑性聚合物从片状的挤出模头挤出到移动的淬火构件上,在移动的表面之间建立电位差 淬火构件和挤出模头,由此使聚合物静电固化并粘附到淬火构件的表面。 聚合物片与移动淬火构件的接触面积保持在比标准空气更好的绝缘性气体的气氛中。 因此,本发明提供了一种有用的方法,其可以以比常规方法更高的速度产生高表面质量的聚合物片材,其避免了常规方法中遇到的操作问题。