Triazine compounds
    2.
    发明授权
    Triazine compounds 有权
    三嗪化合物

    公开(公告)号:US07045517B2

    公开(公告)日:2006-05-16

    申请号:US10656360

    申请日:2003-09-05

    摘要: This invention relates to triazine compounds of formula (I): R1 is , aryl, or heteroaryl; each of R2, R4, and R5, independently, is Rc, halogen, nitro, nitroso, cyano, azide, isothionitro, SRc, or ORc; R3 is Rc, alkenyl, alkynyl, aryl, heteroaryl, cyclyl, heterocyclyl, ORc, OC(O)Rc, SO2Rc, S(O)Rc, S(O2)NRcRd, SRc, NRcRd, NRcCORd, NRcC(O)ORd, NRcC(O)NRcRd, NRcSO2Rd, CORc, C(O)ORc, or C(O)NRcRd; n is 0, 1, 2, 3, 4, 5, 6, or 7; X is O, S, S(O), S(O2), or NRc; Y is a covalent bond, CH2, C(O), C═N—Rc, C═N—ORc, C═N—SRc, O, S, S(O), or S(O2); Z is N; and W is O, S, S(O), S(O2), NRC, or NC(O)Rc; in which each of Ra and Rb, independently, is H, alkyl, aryl, heteroaryl; and each of Rc and Rd, independently, is H, alkyl, or alkylcarbonyl.

    摘要翻译: 本发明涉及式(I)的三嗪化合物:R 1是,芳基或杂芳基; R 2,R 4和R 5各自独立地是R c,卤素,硝基, 亚硝基,氰基,叠氮化物,异硫脲,叔丁醇,或或其盐。 R 3是R c,烯基,炔基,芳基,杂芳基,环基,杂环基,或OC(O)R S(O)R O,S(O)R O,S(O)R c, )NR c,R d,R c,R c,R d,R d, C(O)或C(O),NR C,O,C,O, C(O)NR c R d,C 1,C 2 O 2, C(O)OR C或O,或C(O)NR C d O; n为0,1,2,3,4,5,6或7; X是O,S,S(O),S(O 2 2)或NR c。 Y是共价键,CH 2,C(O),CNR C,O,CN-OR C,CN-SR O,S,S(O)或S(O 2 2); Z是N; 并且W是O,S,S(O),S(O 2)2,NR C或NC(O)R c。 其中R a,R b和R b各自独立地是H,烷基,芳基,杂芳基; 且R“和R”各自独立地为H,烷基或烷基羰基。

    Lightweight precision optical mirror substrate and method of making
    3.
    发明授权
    Lightweight precision optical mirror substrate and method of making 有权
    轻质精密光学镜面基板及其制作方法

    公开(公告)号:US06206531B1

    公开(公告)日:2001-03-27

    申请号:US09318489

    申请日:1999-05-25

    IPC分类号: G02B508

    CPC分类号: G02B7/183 G02B5/08 Y10S359/90

    摘要: A high precision composite optical mirror substrate comprising a lightweight reticulated foam core which is less than about 25 percent dense, an initially separate dense or small pore size faceplate mounted to the core, and a continuous formed in situ encapsulating coating. The coating fully encapsulates the ligaments throughout the reticulated foam core, the juncture between the core and the faceplate, and the faceplate, including the exposed face of the faceplate (the mirror surface). The exposed face of the dense faceplate is shaped to about the desired mirror surface shape. The deposit of coating material on the exposed face of the faceplate is near net shape to the desired mirror surface. The physical characteristics of the composite substrate are dominated by the properties of the coating material. When the coating material is a chemical vapor deposit of silicon carbide, the interlayer is preferably graphite with a thermal expansion coefficient that closely matches that of the silicon carbide. The silicon carbide encapsulated substrate is very strong, rigid, and thermally and structurally stable.

    摘要翻译: 一种高精度复合光学镜基板,包括小于约25%密度的轻质网状泡沫芯,安装在芯上的最初分开的致密或小孔径面板,以及连续形成的原位封装涂层。 涂层完全包裹整个网状泡沫核心,芯部和面板之间的接合处,以及面板,包括面板(镜面)的暴露面。 致密面板的暴露面被成形为大约所需的镜面形状。 涂层材料在面板的暴露面上的沉积物与所需镜面接近净形状。 复合基板的物理特性由涂层材料的性质决定。 当涂层材料是碳化硅的化学气相沉积时,中间层优选是具有与碳化硅的热膨胀系数近似匹配的热膨胀系数的石墨。 碳化硅封装的基材非常坚固,刚性,热和结构稳定。