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    • 1. 发明专利
    • Starch derivatives and its manufacturing method
    • AU1735597A
    • 1997-09-02
    • AU1735597
    • 1997-02-12
    • TAE KYUNG CO LTD
    • KWON SANG GICHO YANG RAEPARK CHAN HUNKO CHUL JONG
    • C08B31/08C08B31/10C08B31/12C08B31/00
    • Novel carboxymethyl-etherified starch derivatives and methods for manufacturing the same, and more particularly, to the novel carboxymethyl-etherified starch derivatives having a viscosity in 5% aqueous solution of 15 DIFFERENCE 600 cps, when measured by a viscometer of the Hakke rotary type; a permeability in 0.1% aqueous solution of more than 95% at 623 nm, when measured by a UV spectrophotometer; viscosity values at a maximum temperature of 95 DEG C. and at a temperature cooled to 50 DEG C. of 6 DIFFERENCE 304 BU and 6 DIFFERENCE 720 BU, respectively when measured by a Brabender viscometer. The cool water-soluble carboxymethyl-etherified starch derivatives are prepared by the following steps: starches (such as corn, potato, wheat and rice are dissolved in organic solvents, such as, lower alcohol without hydrolysis, or hydrolyzed in the presence of inorganic acids, such as, hydrochloric acid or sulfuric acid at 25 DEG to 75 DEG C. for 30 minutes to 72 hours. Then, with the addition of an etherifying agent, in the presence of alkali, some organic solvent of lower alcohol is further added to the mixture and reacted. The reactant was neutralized, purified with organic solvents and dried to give the desired product.
    • 2. 发明公开
    • STARCH DERIVATIVES AND ITS MANUFACTURING METHOD
    • 强度衍生物及其制造方法
    • EP0880546A1
    • 1998-12-02
    • EP97904642.0
    • 1997-02-12
    • Tae Kyung Co., Ltd.
    • KWON, Sang, GiCHO, Yang, RaePARK, Chan, HunKO, Chul, Jong
    • C08B31
    • C08B31/12
    • This invention relates to novel carboxymethyl-etherified starch derivatives and its manufacturing method and more particularly, to the novel carboxymethyl-etherified starch derivatives and its manufacturing method, wherein its viscosity in 5 % aqueous solution is 15≈600 cps, when measured by a viscometer in Hakke rotary type; permeability in 0.1 % aqueous solution shows more than 95 % in 625 nm, when measured by UV spectrophotometer; viscosity values at the maximum temperature of 95 °C and at the temperature cooled to 50 °C are 6≈304 BU and 6≈720 BU, respectively when measured by Brabender viscometer. According to this invention, the cool water-soluble carboxymethyl-etherified starch derivatives are prepared in the following steps: starches (such as corn, potato, wheat and rice) as main materials are dissolved in organic solvents such as lower alcohol without hydrolysis, or hydrolyzed in the presence of inorganic acids such as hydrochloric acid or sulfuric acid at 25 to 75 °C for 30 minutes to 72 hours. Then, with the addition of etherifing agent in the presence of alkali, some organic solvent of lower alcohol was further added to the mixture for reaction thereof. The reactant was neutralized, purified with organic solvents and dried to give the desired product.
    • 3. 发明授权
    • Carboxymethyl-etherified starch derivatives and process for preparing
the same
    • 羧甲基醚化淀粉衍生物及其制备方法
    • US5811541A
    • 1998-09-22
    • US799839
    • 1997-02-13
    • Sang Gi KwonYang Rae ChoChan Hun ParkChul Jong Ko
    • Sang Gi KwonYang Rae ChoChan Hun ParkChul Jong Ko
    • C08B31/08C08B31/10C08B31/12C08B31/00
    • C08B31/12
    • Novel carboxymethyl-etherified starch derivatives and methods for manufacturing the same, and more particularly, to the novel carboxymethyl-etherified starch derivatives having a viscosity in 5% aqueous solution of 15.about.600 cps, when measured by a viscometer of the Hakke rotary type; a permeability in 0.1% aqueous solution of more than 95% at 623 nm, when measured by a UV spectrophotometer; viscosity values at a maximum temperature of 95.degree. C. and at a temperature cooled to 50.degree. C. of 6.about.304 BU and 6.about.720 BU, respectively when measured by a Brabender viscometer. The cool water-soluble carboxymethyl-etherified starch derivatives are prepared by the following steps: starches (such as corn, potato, wheat and rice are dissolved in organic solvents, such as, lower alcohol without hydrolysis, or hydrolyzed in the presence of inorganic acids, such as, hydrochloric acid or sulfuric acid at 25.degree. to 75.degree. C. for 30 minutes to 72 hours. Then, with the addition of an etherifying agent, in the presence of alkali, some organic solvent of lower alcohol is further added to the mixture and reacted. The reactant was neutralized, purified with organic solvents and dried to give the desired product.
    • 新型羧甲基醚化淀粉衍生物及其制造方法,更具体地说,涉及当通过Hakke旋转型粘度计测定时,具有5%DEPFANCE 600cps的5%水溶液中的粘度的新型羧甲基醚化淀粉衍生物; 当通过紫外分光光度计测量时,在623nm处的0.1%水溶液中的渗透率大于95% 当由Brabender粘度计测量时,分别在95℃的最高温度和6℃下的粘度值分别为6分贝304和6差6倍。 冷水溶性羧甲基醚化淀粉衍生物通过以下步骤制备:将淀粉(例如玉米,马铃薯,小麦和稻米)溶解在有机溶剂如低级醇中而不水解,或在无机酸存在下水解 ,例如盐酸或硫酸,在25〜75℃下反应30分钟〜72小时,然后加入醚化剂,在碱的存在下,进一步加入一些低级醇的有机溶剂 混合物并反应,中和反应物,用有机溶剂纯化并干燥,得到所需产物。
    • 4. 发明申请
    • STARCH DERIVATIVES AND ITS MANUFACTURING METHOD
    • STARCH衍生物及其制造方法
    • WO1997030091A1
    • 1997-08-21
    • PCT/KR1997000024
    • 1997-02-12
    • TAE KYUNG CO., LTD.KWON, Sang, GiCHO, Yang, RaePARK, Chan, HunKO, Chul, Jong
    • TAE KYUNG CO., LTD.
    • C08B31/00
    • C08B31/12
    • This invention relates to novel carboxymethyl-etherified starch derivatives and its manufacturing method and more particularly, to the novel carboxymethyl-etherified starch derivatives and its manufacturing method, wherein its viscosity in 5 % aqueous solution is 15 APPROX 600 cps, when measured by a viscometer in Hakke rotary type; permeability in 0.1 % aqueous solution shows more than 95 % in 625 nm, when measured by UV spectrophotometer; viscosity values at the maximum temperature of 95 DEG C and at the temperature cooled to 50 DEG C are 6 APPROX 304 BU and 6 APPROX 720 BU, respectively when measured by Brabender viscometer. According to this invention, the cool water-soluble carboxymethyl-etherified starch derivatives are prepared in the following steps: starches (such as corn, potato, wheat and rice) as main materials are dissolved in organic solvents such as lower alcohol without hydrolysis, or hydrolyzed in the presence of inorganic acids such as hydrochloric acid or sulfuric acid at 25 to 75 DEG C for 30 minutes to 72 hours. Then, with the addition of etherifing agent in the presence of alkali, some organic solvent of lower alcohol was further added to the mixture for reaction thereof. The reactant was neutralized, purified with organic solvents and dried to give the desired product.
    • 本发明涉及新型的羧甲基醚化淀粉衍生物及其制备方法,更具体地说,涉及新型羧甲基醚化淀粉衍生物及其制备方法,其中5%水溶液中的粘度为15约600cps,当用粘度计 在Hakke旋转式; 当用紫外分光光度计测定时,在0.1%水溶液中的透过率在625nm处显示超过95% 在最高温度95℃,冷却至50℃的温度下,粘度值分别为Brappender粘度计测定时的粘度值分别为6 APPROX 304 BU和6 APPROX 720 BU。 根据本发明,冷水溶性羧甲基醚化淀粉衍生物按以下步骤制备:作为主要原料的淀粉(如玉米,马铃薯,小麦和稻米)不经水解溶解在有机溶剂如低级醇中,或 在无机酸如盐酸或硫酸存在下,在25〜75℃下水解30分钟〜72小时。 然后,通过在碱存在下加入醚化剂,进一步向混合物中加入一些低级醇的有机溶剂进行反应。 将反应物中和,用有机溶剂纯化并干燥,得到所需产物。