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    • 5. 发明申请
    • TUNABLE HOLLOW POLY (VINYLIDENE DIFLUORIDE) MICROSPHERES
    • 可移动中空聚(乙烯基二氟)微球
    • WO2017112724A1
    • 2017-06-29
    • PCT/US2016/067913
    • 2016-12-21
    • THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    • BROCKWAY, Lance, RobertBERRYMAN, Liam, ChristopherTAYLOR, Hayden, Kingsley
    • C08F114/22B29D22/04B01J13/04C08J3/14C08J9/32B29D7/01
    • C08J3/14B01J13/06B29D7/01B29D22/04C08F114/22C08J5/18C08J9/32C08J2327/16
    • According to the present disclosure, a method for synthesizing hollow poly(vinylidene difluoride) microspheres is provided. The method, comprises the steps of (i) adding a first non-solvent to a polymer solution comprising poly(vinylidene difluoride) dissolved in an organic solvent to form a ternary mixture without inducing phase separation of the poly(vinylidene difluoride), and (ii) contacting the ternary mixture with a second non-solvent to induce phase separation to thereby form the hollow poly(vinylidene difluoride) microspheres. According to the present disclosure, a hollow poly(vinylidene difluoride) microsphere comprising a hollow core and a shell layer surrounding the hollow core, wherein the shell layer consists of poly(vinylidene difluoride) and comprises an external surface having no apertures that extend from the external surface towards the hollow core is also provided. A film comprising a plurality of hollow poly(vinylidene difluoride) microspheres obtained by the method as described above dispersed on at least one surface of a substrate is also disclosed herein.
    • 根据本公开,提供了一种用于合成中空聚偏二氟乙烯微球的方法。 该方法包括以下步骤:(i)向包含溶解于有机溶剂中的聚偏二氟乙烯的聚合物溶液添加第一非溶剂以形成三元混合物而不引起聚偏二氟乙烯的相分离;以及 ii)使三元混合物与第二种非溶剂接触以诱导相分离,从而形成中空聚偏二氟乙烯微球。 根据本公开,一种中空聚偏二氟乙烯微球体,其包含中空核心和围绕所述中空核心的外壳层,其中所述外壳层由聚偏二氟乙烯组成并且包含外表面,所述外表面没有从所述 还提供朝向中空芯的外表面。 本文还公开了包含通过如上所述的方法获得的分散在基材的至少一个表面上的多个中空聚(偏二氟乙烯)微球体的膜。
    • 7. 发明申请
    • SPHEROIDAL POLYESTER POLYMER PARTICLES
    • SPHEROIDAL POLYESTER聚合物颗粒
    • WO2006028749A3
    • 2007-01-25
    • PCT/US2005030535
    • 2005-08-29
    • EASTMAN CHEM CO
    • WEINHOLD STEPHENCOLHOUN FREDERICK LESLIEEKART MICHAEL PAULGAMBLE BENJAMIN BRADFORD
    • C08G63/02B29D22/04C08F6/00C08G63/16C08J3/00
    • C08G63/88Y10T428/1334Y10T428/1355
    • Spheroidal polyester polymer particles, as well as preforms and stretch blow molded bottles made from the spheroidal particles, are provided which have: A) an lt.V. of at least 0.72 dL/g, and either B) at least two melting peaks (on a DSC first heating scan), wherein one of said at least two melting peaks is a low peak melting point having a peak temperature within a range of 140 °C to 220 °C and having a melting endotherm area of at least the absolute value of 1 J/g, or C) a low degree of crystallinity within a range of at least 20% and a maximum degree of crystallinity T cmax defined by the equation: T cmax = 50% - CA - OH where CA is the total mole % of all carboxylic acid residues other than terephthalic acid residues, based on 100 mole % of carboxylic acid residues in the polyester polymer, and OH is the total mole % of hydroxyl functional compound residues other than ethylene glycol residues, based on 100 mole % of the hydroxyl functional compounds residues; or both B) and C); and optionally but: preferably D) 10 ppm or less of residual acetaldehyde.
    • 提供球形聚酯聚合物颗粒,以及由球形颗粒制成的预成型件和拉伸吹塑瓶,其具有:A) 至少0.72dL / g,和B)至少两个熔融峰(在DSC第一次加热扫描上),其中所述至少两个熔融峰中的一个是具有峰值温度在140℃范围内的低峰值熔点 ℃至220℃,熔融吸热面积至少绝对值为1J / g,或C)在至少20%和最大结晶度T T范围内的低结晶度, cmax 由下式定义:其中CA是除对苯二甲酸残基之外的所有羧酸残基的总摩尔%,基于100摩尔% 聚酯聚合物中的羧酸残基,OH是除了乙二醇残基之外的羟基官能化合物残基的总摩尔%,基于100摩尔%的羟基官能化合物残基; 或B)和C); 并且任选地但优选D)10ppm或更少的残留乙醛。