会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 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。
    • 2. 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。
    • 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。
    • 10. 发明授权
    • Data retrieval system using compression scheme especially for serial
data stream
    • 使用压缩方案的数据检索系统特别适用于串行数据流
    • US5406280A
    • 1995-04-11
    • US112569
    • 1993-08-26
    • Douglas N. CoganBurkhardt T. HufnagelYan Gu
    • Douglas N. CoganBurkhardt T. HufnagelYan Gu
    • G06T9/00H03M7/30H03M7/46
    • H03M7/46G06T9/005H03M7/3086
    • A data retrieval system using a compression scheme especially for serial transmission, which does not inadvertently generate typical flow control codes, such as ASCII values less than 32. A personal computer with a modem is used to access a remote mainframe database. Retrieved data is compressed according to the scheme and transmitted over telephone lines. Compression is achieved by encoding a compressed byte pair in place of a recurring sequence of data longer than two bytes. The byte pair contains information as to the length and offset into the transmitted packet of a previous occurrence of the recurring sequence, so that it may be copied from previously received bytes. The length and offset are stored in the byte pair such that neither byte has an ASCII value typical of those used for controlling modems.
    • 使用特别用于串行传输的压缩方案的数据检索系统,其不会无意地生成典型的流控制代码,例如小于32的ASCII值。具有调制解调器的个人计算机用于访问远程主机数据库。 检索的数据根据​​方案进行压缩并通过电话线传输。 通过对压缩字节对进行编码来代替长于两个字节的循环数据序列来实现压缩。 字节对包含关于重复序列的先前出现的发送分组的长度和偏移的信息,使得其可以从先前接收的字节复制。 长度和偏移量存储在字节对中,使得两个字节都不具有用于控制调制解调器的ASCII值。