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    • 2. 发明专利
    • Acid-induced release microcapsule
    • 酸诱导释放微生物
    • JP2011037864A
    • 2011-02-24
    • JP2010212856
    • 2010-09-22
    • Syngenta Ltdシンジェンタ リミテッド
    • VAN KOPPENHAGEN JUANITA ESCHER HERBERT BENSONLEE KUO-SHINSHIRLEY IAN MWADE PHILIP PFOLLOWS RICHARD R
    • A01N25/28A01N25/04A01N43/40A01N47/12A01P13/00B01J13/16
    • A01N25/28B01J13/16
    • PROBLEM TO BE SOLVED: To provide a microcapsule which is acid-induced or acid-sensitive and which is useful for the controlled release of a physiologically active substance and an agrochemical substance, preferably of a pesticide for the treatment of leaves.
      SOLUTION: This microcapsule is formed with a polyurea shell wall containing at least one oligomer acetal part expressed by formula (I) and an encapsulated component which is included inside this shell wall [in the formula, R is (a) a (5-about 40)C carbon chain which may be substituted, (b) a (4-about 40)C carbon chain having one or more internally-bonded oxygen atoms or the like, or (c) an ethylene chain or propylene chain which may be substituted; Z is a phenyl group which may be substituted or a 1C-20C alkyl group which may be substituted; and n is 1 when R is (a) or (b), and n is 2-20 when R is (c)].
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供酸诱导或酸敏感的微胶囊,其可用于控制释放生理活性物质和农药物质,优选农药用于治疗叶子。 解决方案:该微胶囊由含有至少一种由式(I)表示的低聚物缩醛部分的聚脲壳壁和包含在该壳壁内部的包封组分形成[在式中,R是(a)a( 5〜40)C碳链,(b)具有一个或多个内部键合的氧原子等的(4-约40)C碳链,或(c)乙烯链或丙烯链, 可以替代; Z是可以被取代的苯基或可以被取代的1C-20C烷基; 当R为(a)或(b)时,n为1,当R为(c)时,n为2-20)。 版权所有(C)2011,JPO&INPIT
    • 3. 发明专利
    • DE69905903T2
    • 2003-11-06
    • DE69905903
    • 1999-07-28
    • SYNGENTA LTD
    • VAN KOPPENHAGEN JUANITA ESCHER HERBERT BENSONLEE KUO-SHINSHIRLEY IAN MWADE PHILIP PFOLLOWS RICHARD R
    • A01N25/04A01N25/28B01J13/16
    • Microcapsules of a microcapsule formed of a polyurea shell wall and an encapsulated ingredient or ingredients enclosed within the wall, the wall comprising at least one oligomeric acetal having the moiety represented by formula (I) in which R is (a) a moiety containing a chain of from 5 to about 40 optionally substituted carbon atoms, (b) a moiety containing a chain of from 4 to about 40 carbon atoms and one or more internally linked oxygen or sulfur atoms or -NH-groups, or (c) an optionally substituted ethylene or propylene moiety. Z is (a) an optionally substituted phenyl group, (b) an optionally substituted C1-C20 alkyl, C2-C20 alkenyl, C3-C8 cycloalkyl or C5-C8 cycloalkenyl group, or (c) benzoyl, and n is 1 if R is (a) or (b), or is 2-20 if R is (c). The microcapsules are acid-sensitive and the capsule walls are relatively readily degraded or disintegrated by contacting the microcapsules with an acidic substance, preferably an organic or inorganic acid whereby the encapsulated ingredient or ingredients are released into the surrounding environment. The invention is particularly suitable for encapsulation of biologically active substances and agrochemicals, and most preferably pesticides for foliar treatment.
    • 4. 发明专利
    • ES2190235T3
    • 2003-07-16
    • ES99936789
    • 1999-07-28
    • SYNGENTA LTD
    • VAN KOPPENHAGEN JUANITA ESCHER HERBERT BENSONLEE KUO-SHINSHIRLEY IAN MWADE PHILIP PFOLLOWS RICHARD R ZENECA
    • A01N25/04A01N25/28B01J13/16
    • Microcapsules of a microcapsule formed of a polyurea shell wall and an encapsulated ingredient or ingredients enclosed within the wall, the wall comprising at least one oligomeric acetal having the moiety represented by formula (I) in which R is (a) a moiety containing a chain of from 5 to about 40 optionally substituted carbon atoms, (b) a moiety containing a chain of from 4 to about 40 carbon atoms and one or more internally linked oxygen or sulfur atoms or -NH-groups, or (c) an optionally substituted ethylene or propylene moiety. Z is (a) an optionally substituted phenyl group, (b) an optionally substituted C1-C20 alkyl, C2-C20 alkenyl, C3-C8 cycloalkyl or C5-C8 cycloalkenyl group, or (c) benzoyl, and n is 1 if R is (a) or (b), or is 2-20 if R is (c). The microcapsules are acid-sensitive and the capsule walls are relatively readily degraded or disintegrated by contacting the microcapsules with an acidic substance, preferably an organic or inorganic acid whereby the encapsulated ingredient or ingredients are released into the surrounding environment. The invention is particularly suitable for encapsulation of biologically active substances and agrochemicals, and most preferably pesticides for foliar treatment.
    • 7. 发明专利
    • AT234004T
    • 2003-03-15
    • AT99936789
    • 1999-07-28
    • SYNGENTA LTD
    • VAN KOPPENHAGEN JUANITA ESCHER HERBERT BENSONLEE KUO-SHINSHIRLEY IAN MWADE PHILIP PFOLLOWS RICHARD R
    • A01N25/04A01N25/28B01J13/16
    • Microcapsules of a microcapsule formed of a polyurea shell wall and an encapsulated ingredient or ingredients enclosed within the wall, the wall comprising at least one oligomeric acetal having the moiety represented by formula (I) in which R is (a) a moiety containing a chain of from 5 to about 40 optionally substituted carbon atoms, (b) a moiety containing a chain of from 4 to about 40 carbon atoms and one or more internally linked oxygen or sulfur atoms or -NH-groups, or (c) an optionally substituted ethylene or propylene moiety. Z is (a) an optionally substituted phenyl group, (b) an optionally substituted C1-C20 alkyl, C2-C20 alkenyl, C3-C8 cycloalkyl or C5-C8 cycloalkenyl group, or (c) benzoyl, and n is 1 if R is (a) or (b), or is 2-20 if R is (c). The microcapsules are acid-sensitive and the capsule walls are relatively readily degraded or disintegrated by contacting the microcapsules with an acidic substance, preferably an organic or inorganic acid whereby the encapsulated ingredient or ingredients are released into the surrounding environment. The invention is particularly suitable for encapsulation of biologically active substances and agrochemicals, and most preferably pesticides for foliar treatment.