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    • 2. 发明申请
    • METHOD FOR THE MANUFACTURE OF POLY(ALIPHATIC ESTER-CARBONATE)S AND USES THEREOF
    • 制备聚(脂族酯 - 碳酸酯)S的方法及其用途
    • WO2018017150A1
    • 2018-01-25
    • PCT/US2016/067513
    • 2016-12-19
    • SABIC GLOBAL TECHNOLOGIES B.V.PATIL, Rahul
    • PATIL, RahulSUBRAMANIAN, Shankar KollengoduHOOVER, James FranklinLIN, Guangxin
    • C08G63/64C08G63/79C08G64/24
    • An interfacial process for preparing a poly(aliphatic ester-carbonate) includes providing an initial polymerization reaction mixture comprising an aliphatic C6-20 dicarboxylic acid, a bisphenol, an alkali hydroxide, and optionally a catalyst in a solvent system comprising water and an immiscible organic solvent, adding an initial portion of a carbonyl dihalide over a first time period while maintaining the reaction at a first pH from 7 to 8; and adding a second portion of the carbonyl dihalide over a second, subsequent time period while maintaining the reaction pH at a second pH from 9 to 12, to provide a product polymerization mixture, wherein the amount of alkali hydroxide in the initial polymerization reaction mixture is effective to increase the fraction of the first time period at a measured pH of 7 to 8 compared to the same reaction mixture with a higher amount of alkali hydroxide in the initial polymerization mixture.
    • 用于制备聚(脂族酯 - 碳酸酯)的界面方法包括提供包含脂肪族C 6-20二羧酸,双酚,碱金属氢氧化物和任选的催化剂的初始聚合反应混合物, 包含水和不混溶有机溶剂的溶剂体系,在第一时间段内加入初始部分的羰基二卤化物,同时保持反应在7至8的第一pH; 并在第二个随后的时间段内加入第二部分的二卤化羰,同时将反应pH保持在9-12的第二pH,以提供产物聚合混合物,其中初始聚合反应混合物中碱金属氢氧化物的量为 与在初始聚合混合物中具有更高量的碱金属氢氧化物的相同反应混合物相比,有效地增加了在7至8的测量pH下第一时间段的分数。
    • 3. 发明申请
    • METHOD TO IMPROVE REMOTE PHOSPHOR OPTICAL PROPERTIES IN POLYCARBONATE
    • 改进聚碳酸酯中远红外光学性质的方法
    • WO2018005440A1
    • 2018-01-04
    • PCT/US2017/039425
    • 2017-06-27
    • SABIC GLOBAL TECHNOLOGIES B.V.HEIN, Christopher, Luke
    • HEIN, Christopher, LukeEHRENSBECK, FranklinERMI, Brett, D.ZHOU, BingLIN, GuangxinHURST, Roger, W.
    • C08L67/00G02B1/04H01L33/50
    • The disclosure concerns compositions and methods to improve remote phosphor optical properties in polycarbonate. One method includes combining a phosphor component and a polycarbonate component to form a phosphor-polycarbonate composition; and at a fixed phosphor concentration, combining the phosphor-polycarbonate composition with a diffusing agent comprising polytetrafluoroethylene (PTFE), wherein the diffusing agent diffuses light, and wherein the phosphor-polycarbonate composition exhibits an increase in chromaticity coordinate (CIEx) as determined by CIE 1931 or increase in CIE 1976 (u',v') of at least about 5% relative to a substantially similar reference composition in the absence of PTFE. Also described are methods to increase yield and reduce product accumulation of an extruded thermoplastic polycarbonate composition through the mixing of PTFE with a phosphor-polycarbonate (PCP)to form a PCP-PTFE component as well as a method forming a phosphor-polycarbonate master batch (PPCMB) composition, and during extrusion, adding PTFE to the PPCMB composition to form a PPCMB-PTFE composition.
    • 本公开涉及改善聚碳酸酯中的远程荧光体光学性质的组合物和方法。 一种方法包括组合磷光体组分和聚碳酸酯组分以形成磷光体 - 聚碳酸酯组合物; 并且在固定的荧光粉浓度下,将所述荧光粉 - 聚碳酸酯组合物与包含聚四氟乙烯(PTFE)的扩散剂组合,其中所述扩散剂扩散光,并且其中所述荧光粉 - 聚碳酸酯组合物显示由CIE确定的色度坐标(CIEx)的增加 1931或在不存在PTFE的情况下相对于基本上相似的参考组合物的CIE 1976增加(u',v')至少约5%。 还描述了通过将PTFE与磷光体 - 聚碳酸酯(PCP)混合以形成PCP-PTFE组分以及形成磷光体 - 聚碳酸酯母料的方法来增加挤出热塑性聚碳酸酯组合物的产率和减少产物积聚的方法( PPCMB)组合物,并且在挤出期间,向PPCMB组合物中加入PTFE以形成PPCMB-PTFE组合物。