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    • 113. 发明申请
    • MODIFIED ZIEGLER-NATTA (PRO)CATALYST AND SYSTEM
    • 改性齐格勒 - 纳塔(PRO)催化剂和体系
    • WO2018063898A1
    • 2018-04-05
    • PCT/US2017/052601
    • 2017-09-21
    • DOW GLOBAL TECHNOLOGIES LLC
    • CHEN, LinfengDEMIRORS, Mehmet
    • C08F10/00C08F4/654
    • A modified Ziegler-Natta procatalyst that is a product mixture of modifying an initial Ziegler-Natta procatalyst with a molecular (pro)catalyst, and optionally an activator, the modifying occurring before activating the modified Ziegler-Natta procatalyst with an activator and before contacting the modified Ziegler-Natta procatalyst with a polymerizable olefin. Also, a modified catalyst system prepared therefrom, methods of preparing the modified Ziegler-Natta procatalyst and the modified catalyst system, a method of polymerizing an olefin using the modified catalyst system, and a polyolefin product made thereby.
    • 一种改性的齐格勒 - 纳塔主催化剂,其是将初始齐格勒 - 纳塔主催化剂与分子(pro)催化剂和任选的活化剂改性的产物混合物,所述改性在活化改性的齐格勒 - 纳塔 在催化剂与可改性的齐格勒 - 纳塔主催化剂与可聚合烯烃接触之前与催化剂接触。 此外,由其制备的改性催化剂体系,制备改性齐格勒 - 纳塔主催化剂和改性催化剂体系的方法,使用改性催化剂体系聚合烯烃的方法以及由此制备的聚烯烃产物。
    • 116. 发明申请
    • ORGANOSILOXANE COMPOSITIONS AND USES THEREOF
    • 有机硅氧烷组合物及其用途
    • WO2016022332A1
    • 2016-02-11
    • PCT/US2015/042402
    • 2015-07-28
    • DOW CORNING CORPORATION
    • SWIER, StevenWEI, Yanhu
    • C08L83/04C08G77/04C08K3/00C08J5/00
    • C09D183/16C04B26/32C04B2111/00482C04B2111/00844C08G77/12C08G77/14C08G77/20C08K3/00C08L83/04C08L83/06C09D5/00C09D183/06Y02W30/94C04B14/022C04B14/041C04B14/064C04B14/066C04B14/30C04B14/32C04B14/34C04B18/146C08K5/56C08L83/00
    • The present disclosure provides methods of making organosiloxane polymer compositions from hydrosilylation curable compositions comprising at least the components (a) and (b) and at least one of components (c) and (d): (a) an organosiloxane resin material comprising aliphatic unsaturation; and (b) an organosiloxane crosslinker comprising multiple silicon atom-bonded hydrogen atoms (e.g., an "SiH siloxane"); in combination with at least one of (c) at least one organosiloxane comprising at least two silicon atom-bonded hydrogen atoms; and (d) at least one organosiloxane comprising at least two silicon atom-bonded hydrocarbyl groups comprising aliphatic unsaturation (e.g., a "di-vinyl functional siloxane"). Such hydrosilylation curable compositions have, in some instances, significantly faster cure speed, relative to their condensation curable counterparts. A faster cure speed can be important for encapsulating electronic devices, such as light-emitting diode (LED) chip devices, including devices having tall structures.
    • 本公开提供了由至少包含组分(a)和(b)和至少一种组分(c)和(d))的氢化硅烷化可固化组合物制备有机硅氧烷聚合物组合物的方法:(a)包含脂肪族不饱和度的有机硅氧烷树脂材料 ; 和(b)包含多个与硅原子键合的氢原子的有机硅氧烷交联剂(例如“SiH硅氧烷”); 与(c)至少一种包含至少两个硅原子键合的氢原子的有机硅氧烷中的至少一种的组合; 和(d)至少一种包含至少两个包含脂族不饱和键的硅原子键合的烃基的有机硅氧烷(例如“二乙烯基官能的硅氧烷”)。 在某些情况下,这种氢化硅烷化可固化组合物相对于其可缩合固化的对应物具有显着更快的固化速度。 更快的固化速度对于封装诸如发光二极管(LED)芯片器件的电子器件(包括具有高结构的器件)是重要的。