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    Method for continuous production of tetraalkoxysilane
    2.
    发明授权
    Method for continuous production of tetraalkoxysilane 有权

    公开(公告)号：US10968237B2

    公开(公告)日：2021-04-06

    申请号：US16861300

    申请日：2020-04-29

    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

    Inventor： Bok Ryul Yoo ,  Daejin Kim

    IPC: C07F7/02 ,  B01J31/12

    Abstract: A method for producing tetraalkoxysilane includes reacting a compound represented by Chemical Formula 1 below with an alkali metal at a molar ratio ranging from 1.0:1.0 to 1.0:1.1 and in the absence of a solvent to produce a basic catalyst represented by Chemical Formula 2 below; and mixing the basic catalyst represented by Chemical Formula 2, silicon metal, and an alcohol represented by Chemical Formula 3 below to produce tetraalkoxysilane:
    Chemical Formula 1 R1O(CHR2CH2O)n—H, Chemical Formula 2 R1O(CHR2CH2O)n-M, and Chemical Formula 3 R3OH, where M is alkali metal, R1 represents a C1-C5 linear hydrocarbon group or a C3-C5 branched hydrocarbon group, R2 represents H or a C1-C3 linear hydrocarbon group, R3 represents a C1-C2 alkyl group, and n is an integer of 2-3. Thus, it is possible to increase the proportion of the catalyst in the process, and to minimize production of impurities caused by solvent decomposition.

    Functional reinforcing fillers modified with alkenylalkoxysilane and preparing method of the same
    3.
    发明授权
    Functional reinforcing fillers modified with alkenylalkoxysilane and preparing method of the same 有权
    用烯基烷氧基硅烷改性的功能性增强填料及其制备方法

    公开(公告)号：US09127167B2

    公开(公告)日：2015-09-08

    申请号：US14030197

    申请日：2013-09-18

    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

    Inventor： Bok Ryul Yoo ,  Joon Soo Han ,  Dong Euy Jung

    IPC: C09C3/12 ,  C08K9/06 ,  C07F7/18 ,  C08G77/04 ,  C08K5/5425 ,  C09C1/36 ,  C09C1/40 ,  C09C1/04 ,  C09C1/30

    CPC classification number: C09C3/12 ,  C07F7/18 ,  C08G77/045 ,  C08K5/5425 ,  C08K9/06 ,  C09C1/043 ,  C09C1/30 ,  C09C1/3607 ,  C09C1/407 ,  C08L21/00 ,  C08L9/00 ,  C08L9/06

    Abstract: Disclosed are a functional reinforcing filler including inorganic particles surface-modified with an alkenylsilanol obtained by hydrolyzing an alkenylalkoxysilane compound, and a method for preparing the same. Since the disclosed functional reinforcing filler has a functional group having a double bond, it has good reactivity for styrene-butadiene rubber and sulfur. Thus, when used as a functional reinforcing filler in the manufacture of rubber, it allows improvement of physical properties through adjustment of the addition amount of sulfur without additional use of the coupling agent. In addition, because of superior hydrolysis reactivity, the problem of alcohol can be solved and a rubber mixture with long scorch time can be prepared. In particular, when the functional reinforcing filler of the present invention is used in the manufacture of tires, improvement in modulus, tensile strength, rotational resistance and wet traction performance can be expected.

    Abstract translation: 公开了包含通过水解烯基烷氧基硅烷化合物而获得的烯基硅烷醇表面改性的无机粒子的功能性增强填料及其制备方法。 由于所公开的功能性增强填料具有双键的官能团，因此对苯乙烯 - 丁二烯橡胶和硫具有良好的反应性。 因此，当在橡胶制造中用作功能性增强填料时，其可以通过调节硫的添加量来改善物理性能，而不需要额外使用偶联剂。 此外，由于优异的水解反应性，可以解决醇的问题，并且可以制备具有长焦烧时间的橡胶混合物。 特别地，当本发明的功能性增强填料用于轮胎的制造中时，可以预期模量，拉伸强度，旋转阻力和湿牵引性能的提高。

    Phosphor powder and method of manufacturing the same
    4.
    发明授权
    Phosphor powder and method of manufacturing the same 有权

    公开(公告)号：US10196563B2

    公开(公告)日：2019-02-05

    申请号：US15178889

    申请日：2016-06-10

    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

    Inventor： Joon Soo Han ,  So Hye Cho ,  Bok Ryul Yoo ,  Seung Yong Lee

    IPC: C09K11/02 ,  C09K11/56

    Abstract: There is provided a phosphor powder which includes a wavelength converting material and a silica-based inorganic substance surrounding the wavelength converting material and represented by the following Formula 1, wherein a content of a hydrosilyl group (Si—H) is greater than or equal to 10 ppm by weight, based on the total weight of the silica-based inorganic substance: wherein X represents oxygen (O) or an amine group (NH), Y represents hydrogen (H), a hydroxyl group (OH), an amino group (NH2), or an alkyl group containing heteroelements, and the heteroelements include at least one selected from the group consisting of phosphorus (P), nitrogen (N), sulfur (S), oxygen (O), and a halogen element.

    METHOD FOR CONTINUOUS PRODUCTION OF TETRAALKOXYSILANE
    5.
    发明申请
    METHOD FOR CONTINUOUS PRODUCTION OF TETRAALKOXYSILANE 审中-公开

    公开(公告)号：US20200339609A1

    公开(公告)日：2020-10-29

    申请号：US16861300

    申请日：2020-04-29

    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

    Inventor： Bok Ryul Yoo ,  Daejin Kim

    IPC: C07F7/02 ,  B01J31/12

    Abstract: The present disclosure relates to a method for producing tetraalkoxysilane continuously through direction of silicon metal with alcohol. In the method, a basic catalyst prepared in the absence of a solvent is used. Thus, it is possible to increase the proportion of the catalyst in the process, and to minimize production of impurities caused by solvent decomposition. In addition, it is possible to improve reaction efficiency and to simplify the purification process as compared to the method based on direct reaction according to the related art, and thus to produce tetraalkoxysilane with significantly higher cost efficiency as compared to the related art.

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