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17 条记录 (耗时 0.014 秒)

    Hydrogen bond induced high stability porous covalent organic gel material and preparation method thereof
    5.
    发明授权
    Hydrogen bond induced high stability porous covalent organic gel material and preparation method thereof 有权

    公开(公告)号：US11897972B2

    公开(公告)日：2024-02-13

    申请号：US17317217

    申请日：2021-05-11

    申请人： SHENZHEN GREEN FIELDS ENVIRONMENTAL TECH. CO., LTD

    发明人： Jianwei Zhao ,  Zengliang Fan ,  Ying Xu ,  Liang Shao ,  Jiaming Guo

    IPC分类号： C08F132/04

    CPC分类号： C08F132/04

    摘要： A hydrogen bond induced high stability porous covalent organic gel material and a preparation method thereof are provided. The method comprises: dissolving tetrakis(4-carboxyphenyl)silane in methanol to obtain solution A; adding concentrated sulfuric acid to the solution A, then water-bath heating and re-flowing to obtain a solution B; evaporating the solution B, dissolving remaining powder with an ethyl acetate, washing and drying, filtering and then evaporating the filtrate until crystallization to obtain a colorless solid C; dissolving the colorless solid C and hydrazine hydrate in methanol, water-bath re-fluxing, filtering and collecting white powder, washing and drying to obtain a white solid D; adding the white solid D and 1,4-Phthalaldehyde to N,N-dimethyl-formamide, adding trifluoroacetic acid, and then getting the desired material. The material is has high synthesis efficiency, abundant functional groups, a large specific surface area, a good adsorption performance, and excellent chemical stability and thermal stability.

    Isomerized terpene tackifier resins
    6.
    发明授权
    Isomerized terpene tackifier resins 失效
    异构萜烯增粘剂树脂

    公开(公告)号：US4879351A

    公开(公告)日：1989-11-07

    申请号：US232024

    申请日：1988-08-15

    申请人： Robert W. Schluenz

    发明人： Robert W. Schluenz

    IPC分类号： C08F8/48

    CPC分类号： C08F8/48 ,  C08C19/10 ,  C08F132/04 ,  C08F210/14 ,  C08F236/20 ,  C09J123/0853 ,  C09J123/24 ,  C09J153/02 ,  C09J191/08 ,  C08F2800/20

    摘要： A novel copolymer resin which has excellent tackifying properties for selected elastomers useful in hot melt and pressure sensitive adhesives is produced by the copolymerization of beta-pinene with other terpenes or hydrocarbon monomers, followed by thermal catalytic isomerization of the resin produced. Typically, beta-pinene and styrene (80/20) are copolymerized at a temperature between 0.degree. to 60.degree. C. under anhydrous conditions with a Lewis acid catalyst in a solvent. After catalyst removal, the copolymer resin is isomerized with iodine as a catalyst at a temperature between 200.degree. to 260.degree. C. Excellent yields of high softening point tackifier resins are produced.

    摘要翻译： 通过β-蒎烯与其他萜烯或烃单体的共聚合，然后将所生产的树脂进行热催化异构化，得到对热熔和压敏粘合剂有用的选择的弹性体具有优异的增粘性能的新型共聚物树脂。 通常，β-蒎烯和苯乙烯（80/20）在0至60℃的温度下在无水条件下与路易斯酸催化剂在溶剂中共聚。 催化剂除去后，共聚物树脂在200〜260℃的温度下用碘作为催化剂异构化。生产出高产率的高软化点增粘树脂。