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    • 3. 发明授权
    • Preparation method of pimaric acid type resin acid
    • 海松酸型树脂酸的制备方法
    • US08680232B2
    • 2014-03-25
    • US13254774
    • 2010-03-18
    • Zhendong ZhaoYuxiang ChenLiangwu BiYan GuDongmei LiJing WangYanju Lu
    • Zhendong ZhaoYuxiang ChenLiangwu BiYan GuDongmei LiJing WangYanju Lu
    • C09F1/02
    • C07C61/08C07C51/42C07C51/43C07C51/44C07C51/487C07D307/77C07D307/89C09F1/04
    • A method for preparing pimaric acid type resin acids includes the following steps: step (1) adding refined resin acid, turpentine, or rosin along with maleic anhydride at a mass ratio of 1:0.3-1.5 into a reaction bottle, dissolving the ingredients into a C1-C10 lower fatty acid solvent, the mass ratio of the C1-C10 low fatty acid to refined resin acid is 0.05-30:1, then carrying out additional reaction by heating directly or with assistance of a microwave, subsequently cooling, crystallizing, filtering, and washing; and step (2) combining the filtrates collected in step (1), stripping the solvent by vacuum distillation to obtain pimaric acid type resin acid coarse product, dissolving the resulting coarse product in NaOH aqueous solution to prepare aqueous solution of pimaric acid type resin acid salt, adjusting the pH level to 6-14 with a mineral acid or an organic acid while stirring, and either directly purifying or acidifying followed by purifying, the resulting precipitation to obtain the final product. The method has the characteristics of high yield, high product content, low cost, and low environmental pollution.
    • 制备海松酸型树脂酸的方法包括以下步骤:步骤(1)将精制树脂酸,松节油或松香与马来酸酐以1:0.3-1.5的质量比加入到反应瓶中,将成分溶解成 C1-C10低级脂肪酸溶剂,C1-C10低级脂肪酸与精制树脂酸的质量比为0.05-30:1,然后直接加热或在微波辅助下进行附加反应,随后冷却,结晶 ,过滤和洗涤; 和步骤(2)将步骤(1)中收集的滤液合并,通过真空蒸馏除去溶剂,得到海松酸型树脂酸粗产物,将所得粗产物溶解在NaOH水溶液中,制备海松酸型树脂酸水溶液 盐,在搅拌下用无机酸或有机酸将pH值调节至6-14,直接纯化或酸化,然后纯化,得到沉淀,得到最终产物。 该方法具有产量高,产品含量高,成本低,环境污染少的特点。
    • 4. 发明授权
    • Process for preparing isopimaric acid
    • 异海松酸的制备方法
    • US08946469B2
    • 2015-02-03
    • US12927097
    • 2010-11-04
    • Zhendong ZhaoXingdi LiLiangwu BiYuxiang ChenYan GuDongmei LiJing Wang
    • Zhendong ZhaoXingdi LiLiangwu BiYuxiang ChenYan GuDongmei LiJing Wang
    • C07C61/29C07C51/43
    • C07C61/29C07C51/43C07C2603/22C07C61/35
    • Disclosed is a process for preparing isopimaric acid, comprising the following steps: First step: dissolving thermally isomerized rosin in acetone, adding in drops a solution of isobutanolamine in acetone to form a precipitate, standing, filtering, washing with ethanol, and drying to obtain crude ammonium salt of isopimaric acid; recrystallizing the crude ammonium salt of isopimaric acid according to multi-recrystallization, and drying to obtain purified crystal of ammonium salt of isopimaric acid; Second step: dissolving the purified crystal of ammonium salt of isopimaric acid obtained in the first step in ether, adding hydrochloric acid in portions until the crystal of ammonium salt of isopimaric acid disappears, removing a water layer and washing the ether layer with water to neutral, evaporating the ether, dissolving the residue in acetone, adding water slowly into the solution dropwise until crystals cease to grow, then filtering and drying to obtain purified isopimaric acid.
    • 公开了一种制备异海松酸的方法,包括以下步骤:第一步:将热异构松香溶解在丙酮中,滴加异丁醇胺的丙酮溶液形成沉淀,静置,过滤,用乙醇洗涤,并干燥得到 异海松酸的粗铵盐; 根据多重结晶重结晶异海松酸的粗铵盐,干燥,得到异海松酸铵盐的纯化结晶; 第二步:将纯化的第一步获得的异海松酸铵盐的结晶溶解在乙醚中,分几次加入盐酸,直到异海松酸的铵盐结晶消失,去除水层,用水洗涤乙醚层至中性 蒸发乙醚,将残余物溶解在丙酮中,慢慢加入水中直到晶体停止生长,然后过滤并干燥,得到纯化的异海松酸。
    • 5. 发明申请
    • Process for preparing isopimaric acid
    • 异海松酸的制备方法
    • US20110060160A1
    • 2011-03-10
    • US12927097
    • 2010-11-04
    • Zhendong ZhaoXingdi LiLiangwu BiYuxiang ChenYan GuDongmei LiJing Wang
    • Zhendong ZhaoXingdi LiLiangwu BiYuxiang ChenYan GuDongmei LiJing Wang
    • C07C51/43
    • C07C61/29C07C51/43C07C2603/22C07C61/35
    • Disclosed is a process for preparing isopimaric acid, comprising the following steps: First step: dissolving thermally isomerized rosin in acetone, adding in drops a solution of isobutanolamine in acetone to form a precipitate, standing, filtering, washing with ethanol, and drying to obtain crude ammonium salt of isopimaric acid; recrystallizing the crude ammonium salt of isopimaric acid according to multi-recrystallization, and drying to obtain purified crystal of ammonium salt of isopimaric acid; Second step: dissolving the purified crystal of ammonium salt of isopimaric acid obtained in the first step in ether, adding hydrochloric acid in portions until the crystal of ammonium salt of isopimaric acid disappears, removing a water layer and washing the ether layer with water to neutral, evaporating the ether, dissolving the residue in acetone, adding water slowly into the solution dropwise until crystals cease to grow, then filtering and drying to obtain purified isopimaric acid.
    • 公开了一种制备异海松酸的方法,包括以下步骤:第一步:将热异构松香溶解在丙酮中,滴加异丁醇胺的丙酮溶液形成沉淀,静置,过滤,用乙醇洗涤,并干燥得到 异海松酸的粗铵盐; 根据多重结晶重结晶异海松酸的粗铵盐,干燥,得到异海松酸铵盐的纯化结晶; 第二步:将纯化的第一步获得的异海松酸铵盐的结晶溶解在乙醚中,分几次加入盐酸,直到异海松酸的铵盐结晶消失,去除水层,用水洗涤乙醚层至中性 蒸发乙醚,将残余物溶解在丙酮中,慢慢加入水中直到晶体停止生长,然后过滤并干燥,得到纯化的异海松酸。
    • 6. 发明授权
    • Two-way shock proof and shock absorbing towing coupling
    • 双向防震和减震牵引联轴器
    • US5050901A
    • 1991-09-24
    • US438076
    • 1989-11-20
    • Zhendong Zhao
    • Zhendong Zhao
    • B60D1/18B60D1/50B61G9/04
    • B61G9/04B60D1/182B60D1/50
    • Two-way shock proof and shock absorbing towing coupling, including two opposite planar chain holders, each holder having at least two equally spaced lugs; at least four pairs of chains, each pair having two chain sections, each chain section having a plate link and a joint connected by a pin, two ends of each pair of chains being connected with the opposite lugs on the opposite planar chain holders by pins respectively; two towing frames for connecting with two neighboring vehicles, each frame having at least two arms, each of the arms being connected pivotally with another end of each chain section in each pair of chains, at least one shock proof bearing spring provided between two planar chain holders and the spring being coaxial with the two towing frames, the two nds of the spring abutting against an inner surface of the planar chain holders respectively, and a piston sleeve.This towing coupling may be used for connecting combination vehicles of water or land transportation so as to increase efficiency and benefit of transportation and service life and safety of transportation facilities.
    • 双向防震和减震牵引联轴器,包括两个相对的平面链架,每个支架具有至少两个相等间隔的凸耳; 至少四对链,每对具有两个链节,每个链节具有板连接件和由销连接的接头,每对链条的两端通过销钉与相对的平面链架上的相对的凸耳连接 分别; 两个牵引框架,用于与两个相邻的车辆连接,每个框架具有至少两个臂,每个臂与每对链条中的每个链条的另一端枢转连接;至少一个防冲击轴承弹簧,设置在两个平面链条 支架和弹簧与两个牵引架同轴,弹簧的两个弹簧分别抵靠平面链支架的内表面和活塞套。 该牵引联轴器可用于连接水陆交通工具,以提高运输效率和效益,提高运输设施的使用寿命和安全。
    • 7. 发明申请
    • PREPARATION METHOD OF PIMARIC ACID TYPE RESIN ACID
    • 树脂酸型树脂酸的制备方法
    • US20120004390A1
    • 2012-01-05
    • US13254774
    • 2010-03-18
    • Zhendong ZhaoYuxiang ChenLiangwu BiYan GuDongmei LiJing WangYanju Lu
    • Zhendong ZhaoYuxiang ChenLiangwu BiYan GuDongmei LiJing WangYanju Lu
    • C09F1/04
    • C07C61/08C07C51/42C07C51/43C07C51/44C07C51/487C07D307/77C07D307/89C09F1/04
    • A method for preparing pimaric acid type resin acids includes the following steps: step (1) adding refined resin acid, turpentine, or rosin along with maleic anhydride at a mass ratio of 1:0.3-1.5 into a reaction bottle, dissolving the ingredients into a C1-C10 lower fatty acid solvent, the mass ratio of the C1-C10 low fatty acid to refined resin acid is 0.05-30:1, then carrying out additional reaction by heating directly or with assistance of a microwave, subsequently cooling, crystallizing, filtering, and washing; and step (2) combining the filtrates collected in step (1), stripping the solvent by vacuum distillation to obtain pimaric acid type resin acid coarse product, dissolving the resulting coarse product in NaOH aqueous solution to prepare aqueous solution of pimaric acid type resin acid salt, adjusting the pH level to 6-14 with a mineral acid or an organic acid while stirring, and either directly purifying or acidifying followed by purifying, the resulting precipitation to obtain the final product. The method has the characteristics of high yield, high product content, low cost, and low environmental pollution.
    • 制备海松酸型树脂酸的方法包括以下步骤:步骤(1)将精制树脂酸,松节油或松香与马来酸酐以1:0.3-1.5的质量比加入到反应瓶中,将成分溶解成 C1-C10低级脂肪酸溶剂,C1-C10低级脂肪酸与精制树脂酸的质量比为0.05-30:1,然后直接加热或在微波辅助下进行附加反应,随后冷却,结晶 ,过滤和洗涤; 步骤(2)将步骤(1)中收集的滤液合并,通过真空蒸馏除去溶剂,得到海松酸型树脂酸粗产物,将所得粗产物溶解在NaOH水溶液中,制备海松酸型树脂酸水溶液 盐,在搅拌下用无机酸或有机酸将pH值调节至6-14,直接纯化或酸化,然后纯化,得到沉淀,得到最终产物。 该方法具有产量高,产品含量高,成本低,环境污染少的特点。