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
    • 5. 发明授权
    • Microcapsules and microencapsulation process
    • 微胶囊和微胶囊化方法
    • US5160529A
    • 1992-11-03
    • US651836
    • 1991-02-06
    • Herbert B. ScherMarius Rodson
    • Herbert B. ScherMarius Rodson
    • A01N25/28A01N37/22A01N37/26A01P13/00B01J13/18
    • A01N25/28A01N37/26B01J13/18Y10S514/963Y10T428/2985
    • Microcapsules containing a substantially water-insoluble liquid material, such as an anilide herbicide, and optionally also a herbicide antidote, within a porous shell to effect a slow rate of release of said herbicide (and optionally said antidote) through said shell, are produced by a process which comprises (a) providing an organic solution comprising said material and an etherified amino resin prepolymer dissolved therein which from about 50% to about 98% of the methylol groups of said prepolymer have been etherified with a C.sub.4 -C.sub.10 alcohol; (b) creating an emulsion of said organic solution in a continuous phase aqueous solution comprising water and a surface-active agent, wherein said emulsion comprises discrete droplets of said organic solution, there being formed thereby an interface between the discrete droplets of organic solution and the surrounding continuous phase aqueous solution; and (c) causing in situ self-condensation and curing of said amino resin prepolymer in the organic phase of said discrete droplets adjacent to said interface by simultaneously heating said emulsion to a temperature between about 20.degree. C. to about 100.degree. C., and adding to said emulsion an acidifying agent and maintaining said emulsion at a pH of between about 0 to about 4 for a sufficient period of time to allow substantial completion of in situ condensation of said resin prepolymers to convert the liquid droplets of said organic solution to capsules consisting of solid permeable polymer shells enclosing said liquid material.Also disclosed are the microcapsules formed by the above-described process.
    • 在多孔壳内含有基本上不溶于水的液体物质如苯胺除草剂和任选地除草剂解毒剂的微胶囊通过所述外壳来实现所述除草剂(和任选的所述解毒剂)的缓慢释放速率,由 一种方法,其包括(a)提供包含所述材料的有机溶液和溶解在其中的醚化氨基树脂预聚物,其中约50%至约98%的所述预聚物的羟甲基已用C4-C10醇醚化; (b)在包含水和表面活性剂的连续相水溶液中产生所述有机溶液的乳液,其中所述乳液包含离散的所述有机溶液的液滴,由此形成离散的有机溶液液滴和 周围连续相水溶液; 和(c)通过将所述乳液同时加热至约20℃至约100℃的温度,使所述氨基树脂预聚物在与所述界面相邻的所述离散液滴的有机相中原位自缩合和固化, 并向所述乳液中加入酸化剂并将所述乳液保持在约0至约4的pH下足够的时间,以使基本上完成所述树脂预聚物的原位缩合以将所述有机溶液的液滴转化为 胶囊由包围所述液体材料的固体可渗透聚合物壳组成。 还公开了通过上述方法形成的微胶囊。
    • 6. 发明授权
    • Microencapsulation process
    • 微胶囊化方法
    • US4956129A
    • 1990-09-11
    • US151048
    • 1988-02-01
    • Herbert B. ScherMarius Rodson
    • Herbert B. ScherMarius Rodson
    • A01N25/28B01J13/18
    • B01J13/18A01N25/28Y10S514/963Y10T428/2985
    • A process is disclosed for the microencapsulation of a substantially water-insoluble liquid material within a porous shell to effect a slow rate of release of said material through said shell which comprises (a) providing an organic solution comprising said material and an etherified urea-formaldehyde prepolymer dissolved therein which from about 50% to about 98% of the methylol groups of said prepolymer have been etherified with a C.sub.4 -C.sub.10 alcohol; (b) creating an emulsion of said organic solution in an continuous phase aqueous solution comprising water and a surfaceactive agent, wherein said emulsion comprises discrete droplets of said organic solution dispersed in said continuous phase aqueous solution, there being formed thereby an interface between the discrete droplets of organic solution and the surrounding continuous phase aqueous solution; and (c) causing in situ self-condensation and curing of said ureaformaldehyde prepolymers in the organic phase of said discrete droplets adjacent to said interface by simultaneously heating said emulsion to a temperature between about 20.degree. C. to about 100.degree. C., and adding to said emulsion an acidifying agent and maintaining said emulsion at a pH of between about 0 to about 4 for a sufficient period of time to allow substantial completion of in situ condensation of said resin prepolymers to convert the liquid droplets of said organic solution to capsules consisting of solid permeable polymer shells enclosing said liquid material.Also disclosed are the microcapsules formed by the above-described process. f
    • 公开了一种用于在多孔壳体内微囊化基本上不溶于水的液体材料的方法,以实现所述材料通过所述壳体的缓慢释放速率,其包括(a)提供包含所述材料的有机溶液和醚化的脲 - 甲醛 其中约50%至约98%的所述预聚物的羟甲基已经用C 4 -C 10醇醚化了; (b)在包含水和表面活性剂的连续相水溶液中产生所述有机溶液的乳液,其中所述乳液包含分散在所述连续相水溶液中的所述有机溶液的离散液滴,由此形成离散的 有机溶液滴和周围连续相水溶液; 和(c)通过同时将所述乳液加热到约20℃至约100℃的温度,使所述脲甲醛预聚物在所述离子液滴的邻近所述界面的有机相中原位自缩合和固化,以及 向所述乳液中加入酸化剂并将所述乳液保持在约0至约4的pH下足够的时间,以使基本上完成所述树脂预聚物的原位冷凝以将所述有机溶液的液滴转化成胶囊 由包封所述液体材料的固体可渗透聚合物壳组成。 还公开了通过上述方法形成的微胶囊。
    • 7. 发明授权
    • Microcapsules
    • 微胶囊
    • US5332584A
    • 1994-07-26
    • US803870
    • 1991-12-09
    • Herbert B. ScherMarius Rodson
    • Herbert B. ScherMarius Rodson
    • A01N25/28B01J13/18A01N37/18
    • B01J13/18A01N25/28Y10S514/963Y10T428/2985
    • A process is disclosed for the microencapsulation of a substantially water-insoluble liquid material within a porous shell to effect a slow rate of release of said material through said shell which comprises (a) providing an organic solution comprising said material and an etherified urea-formaldehyde prepolymer dissolved therein in which from about 50% to about 98% of the methylol groups of said prepolymer have been etherified with a C.sub.4 -C.sub.10 alcohol; (b) creating an emulsion of said organic solution in an continuous phase aqueous solution comprising water and a surfaceactive agent, wherein said emulsion comprises discrete droplets of said organic solution dispersed in said continuous phase aqueous solution, there being formed thereby an interface between the discrete droplets of organic solution and the surrounding continuous phase aqueous solution; and (c) causing in situ self-condensation and curing of said ureaformaldehyde prepolymers in the organic phase of said discrete droplets adjacent to said interface by simultaneously heating said emulsion to a temperature between about 20.degree. C. to about 100.degree. C., and adding to said emulsion an acidifying agent and maintaining said emulsion at a pH of between about 0 to about 4 for a sufficient period of time to allow substantial completion of in situ condensation of said resin prepolymers to convert the liquid droplets of said organic solution to capsules consisting of solid permeable polymer shells enclosing said liquid material.Also disclosed are the microcapsules formed by the above-described process.
    • 公开了一种用于在多孔壳体内微囊化基本上不溶于水的液体材料的方法,以实现所述材料通过所述壳体的缓慢释放速率,其包括(a)提供包含所述材料的有机溶液和醚化的脲 - 甲醛 溶解在其中的预聚物,其中约50%至约98%的所述预聚物的羟甲基已用C4-C10醇醚化; (b)在包含水和表面活性剂的连续相水溶液中产生所述有机溶液的乳液,其中所述乳液包含分散在所述连续相水溶液中的所述有机溶液的离散液滴,由此形成离散的 有机溶液滴和周围连续相水溶液; 和(c)通过同时将所述乳液加热到约20℃至约100℃的温度,使所述脲甲醛预聚物在所述离子液滴的邻近所述界面的有机相中原位自缩合和固化,以及 向所述乳液中加入酸化剂并将所述乳液保持在约0至约4的pH下足够的时间,以使基本上完成所述树脂预聚物的原位冷凝以将所述有机溶液的液滴转化成胶囊 由包封所述液体材料的固体可渗透聚合物壳组成。 还公开了通过上述方法形成的微胶囊。
    • 8. 发明授权
    • Single-package agricultural formulations combining immediate and
time-delayed delivery of thiocarbamate herbicides and dichlormid as
safener
    • 单包装农药配方将硫代氨基甲酸酯除草剂和二氯甲烷的即时和时间延迟交付作为安全剂
    • US5223477A
    • 1993-06-29
    • US724264
    • 1991-07-01
    • Herbert B. ScherMarius RodsonJose L. CalvoMiguel Gimeno
    • Herbert B. ScherMarius RodsonJose L. CalvoMiguel Gimeno
    • A01N25/28
    • A01N25/28
    • Microcapsule formulations are combined with emulsions or particle dispersions in a single-package formulation which is storage-stable and provides substantially the full efficacy of each of the two forms as if applied individually. The single-package formulation is suspension having two dispersed phases--the first being an active species encapsulated in a shell of inert polymeric diffusion-limiting material (i.e., a microcapsule), and the second being an active species in water-insoluble form with no diffusion-limiting barrier at its surface. An appropriate suspension system is included to prevent the dispersed phases from agglomerating within themselves and with each other. The invention is useful in combining two different active ingredients as well as in combining immediate-delivery and delayed-delivery forms of the same active ingredient. The invention may for example involve combining a biocide with an activity modifier such as a safener, with the effect of lowering the needed amount of one or the other by removing it to a separate phase. In certain cases, a unique combination of surface-active agents maintains the phases in suspension.
    • 将微胶囊制剂与单一包装制剂中的乳剂或颗粒分散体组合,其是储存稳定的并且提供了两种形式中的每一种的基本上全部功效,如同单独应用。 单包装制剂是具有两个分散相的悬浮液 - 第一种是包封在惰性聚合物扩散限制材料(即,微胶囊)的壳体中的活性物质,第二种是不溶于水的不活泼物质的活性物质 扩散限制屏障在其表面。 包括适当的悬浮系统以防止分散相在其内部和彼此之间附聚。 本发明可用于组合两种不同的活性成分以及组合相同活性成分的即时递送和延迟递送形式。 本发明可以例如包括将杀生物剂与活性改良剂(例如安全剂)组合,其作用是通过将一种或另一种除去所需量降低至单独的相。 在某些情况下,表面活性剂的独特组合保持了悬浮状态。
    • 9. 发明授权
    • Single-package agricultural formulations combining immediate and
time-delayed delivery
    • 单包装农业配方立即和延期交货
    • US5049182A
    • 1991-09-17
    • US291723
    • 1989-02-03
    • Herbert B. ScherMarius RodsonJose L. CalvoMiguel Gimeno
    • Herbert B. ScherMarius RodsonJose L. CalvoMiguel Gimeno
    • A01N25/04A01N25/28
    • A01N25/28Y10T428/2982Y10T428/2984Y10T428/2989
    • Microcapsule formulations are combined with emulsions or particle dispersions in a single-package formulation which is storage-stable and provides substantially the full efficacy of each of the two forms as if applied individually. The single-package formulation is suspension having two dispersed phases--the first being an active species encapsulated in a shell of inert polymeric diffusion-limiting material (i.e., a microcapsule), and the second being an active species in water-insoluble form with no diffusion-limiting barrier at its surface. An appropriate suspension system is included to prevent the dispersed phases from agglomerating within themselves and with each other. The invention is useful in combining two different active ingredients as well as in combining immediate-delivery and delayed-delivery forms of the same active ingredient. The invention may for example involve combining a biocide with an activity modifier such as a safener, with the effect of lowering the needed amount of one or the other by removing it to a separate phase. In certain cases, a unique combination of surface-active agents maintains the phases in suspension.
    • 将微胶囊制剂与单一包装制剂中的乳剂或颗粒分散体组合,其是储存稳定的并且提供了两种形式中的每一种的基本上全部功效,如同单独应用。 单包装制剂是具有两个分散相的悬浮液 - 第一种是包封在惰性聚合物扩散限制材料(即,微胶囊)的壳体中的活性物质,第二种是不溶于水的不活泼物质的活性物质 扩散限制屏障在其表面。 包括适当的悬浮系统以防止分散相在其内部和彼此之间附聚。 本发明可用于组合两种不同的活性成分以及组合相同活性成分的即时递送和延迟递送形式。 本发明可以例如包括将杀生物剂与活性改良剂(例如安全剂)组合,其作用是通过将一种或另一种除去所需量降低至单独的相。 在某些情况下,表面活性剂的独特组合保持了悬浮状态。