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
    • 4. 发明授权
    • Stable suspensions and powders of stable microcapsules and their
preparation
    • 稳定的悬浮液和稳定的微胶囊粉末及其制备方法
    • US4376113A
    • 1983-03-08
    • US181359
    • 1980-08-26
    • Jean-Claude SugliaColette Meinard
    • Jean-Claude SugliaColette Meinard
    • A61K9/64A01N25/28A61K9/50A61K39/12B01J13/02B01J13/10C12N11/04A61K9/34
    • C12N11/04A01N25/28A61K9/5047A61K9/5057B01J13/10C12N2710/14051Y10T428/2984
    • A process for the preparation of stable suspensions and powders of stable microcapsules containing at least one active material having a variable porosity comprising preparing a colloidal solution of equal parts by weight of gelatin and acacia gum with a total concentration of 4 to 6% by weight of the final emulsion, preparing an oil solution, suspension or emulsion of the active material at a concentration of 1 to 5% by weight of the final emulsion and containing a variable amount of organosoluble ethyl hydroxyethylcellulose, mixing the said two compositions with stirring at a temperature near 50.degree. C. in the presence of an emulsifying agent to form an "oil in water" emulsion, effecting consecutively coacervation and microencapsulation of the emulsified droplets containing the active material by adjusting the pH to 4.2 to 4.4 by addition of an acid and then cooling the mixture to about 20.degree. C. with stirring, reticulating the walls of the formed microcapsules by reaction with glutaric aldehyde and tannin with stirring at about 20.degree. C. and either forming a concentrated suspension of microcapsules by slow addition at 20.degree. C. of a water soluble ethyl hydroxyethylcellulose to the eticulated microcapsules or adding an antiagglomeration agent with stirring to the reticulated microcapsules at 20.degree. C. and drying the resulting powder and the microcapsules produced thereby which are stable with respect to physico chemical influences and to exterior elements generally, such as sunlight and temperature changes so that the encapsulated active material maintains its activity.
    • 制备稳定的悬浮液和稳定的微胶囊的粉末的方法,所述稳定的微胶囊含有至少一种具有可变孔隙率的活性物质,包括制备等份重量的明胶和阿拉伯树胶的胶体溶液,其总浓度为4至6重量% 最终乳液,以最终乳液的1至5重量%的浓度制备活性物质的油溶液,悬浮液或乳液,并含有可变量的有机溶剂乙基羟乙基纤维素,在搅拌下将所述两种组合物在温度 在乳化剂存在下接近50℃以形成“水包油”乳液,通过加入酸将pH调节至4.2至4.4,从而连续地凝聚和微囊化包含活性物质的乳化液滴,然后 在搅拌下将混合物冷却至约20℃,通过与戊二烯反应将形成的微胶囊的壁网状化 在约20℃搅拌下,通过在20℃下缓慢加入水溶性乙基羟乙基纤维素形成微胶囊的浓缩悬浮液,并在搅拌下向搅拌下加入抗凝聚剂至网状微胶囊 干燥得到的粉末和由此产生的微胶囊,其相对于物理化学影响是稳定的,并且通常包括阳光和温度变化,从而使包封的活性材料保持其活性。
    • 5. 发明授权
    • Light-stable pesticidal compositions
    • US4440756A
    • 1984-04-03
    • US271989
    • 1981-06-09
    • Jean-Jacques HerveJean-Claude SugliaColette Meinard
    • Jean-Jacques HerveJean-Claude SugliaColette Meinard
    • A01N53/02A01N25/22A01N37/34A01N53/00A01N53/04A01N53/06A01N53/08
    • A01N25/22A01N53/00Y10S514/97Y10S514/972
    • Novel light-stable pyrethrinoid pesticidal compositions comprising (a) at least one liquid vehicle, (b) at least one surface-active agent soluble in the said liquid vehicle, (c) at least one azodyestuff stabilizer selected from the group consisting of a mixture of 1-[{4-(phenylazo)-phenyl)}-azo]-3-naphthalenol and 4-[{4-(phenylazo)-phenyl}-azo]-phenol (a component of Scarlet R), 1-[4-(4-phenylazo-phenyl)-azo]-naphthalene (Red organol BS), 1-[{2-methyl-4-(2-methylphenylazo)-phenyl}-azo]-2-naphthalenol (Red Sudan IV), 1-[(2-methoxyphenol)-azo]-2-naphthaphenol (Vermillion organol); 1-[(1-naphthalenyl)-azo]-2-naphthalenol (Scarlet 2R for fat), 1-(phenylazo)-2-naphthalenol (Sudan I), 1-[(2-hydroxy-4-methyl-phenyl)-azo]-2-naphthalenol (Sudan II), 1-[{dimethyl-4-[(dimethyl)-phenyl]-azo}-phenylazo]-2-naphthalenol (Red to fat 5B), N-ethyl-1-[{4-(phenylazo)-phenyl}-azo]-2-naphthalenylamine (Red to fat 7B), 1-[{1-naphthalenyl}-azo]-2,4-benzene-diamine (Brown RR to fat), 2-[(2-methoxyphenyl)-azo]-phenol (Red to fat G), disodium 4-hydroxy-3-[(4-sulfo-1-naphthalenyl)-azo]-1-naphthalene sulfonate (azo ruby), 4-[(4-ethoxyphenyl)-azo]-1-naphthalenol (Brown to fat B), 2,4-dihydro-5-methyl-2-phenyl-4-(phenylazo)-3H-pyrazol-3-one (Yellow to fat 3G), N,N-diethyl-4-(phenylazo)-benzeneamine (Yellow to fat GGN), 2,3-dihydro-2,2-dimethyl-6-[(4-phenylazo)-1-naphthalenyl]-azo-1H-perimidine (Black to fat HB), N-[4-phenyl)-(4-phenylamino)-1-naphthalenyl]-azo methylene-2,5-cyclohexadien-1-ylidene-N-methyl-methaniminium chloride (Blue to fat B) and 1-[{4-(phenylazo)-phenyl}-azo]-2-naphthalenol and (d) at least one ester of the formula ##STR1## wherein Y is selected from the group consisting of ##STR2## in its various stereoisomeric forms and mixtures thereof, Z is alkyl of 1 to 6 carbon atoms, Y is selected from the group consisting of hydrogen, halogen, --CN, --NO.sub.3, alkyl of 1 to 4 carbon atoms and alkoxy of 1 to 4 carbon atoms, n is 0, 1, 2 or 3, W is selected from the group consisting of ##STR3## X.sub.1 is selected from the group consisting of hydrogen, fluorine, chlorine and bromine, X.sub.2 is selected from the group consisting of fluorine, chlorine and bromine, X.sub.3 is selected from the group consisting of chlorine, bromine and iodine, X.sub.4 is a halogen and X.sub.5 is a halogen optionally other than that of X.sub.4 and due to asymetric carbon atom in W, the compounds are in the A isomer or B isomer form or mixtures thereof and R is selected from the group consisting of ##STR4## and benzyl optionally substituted with at least one member of the group consisting of alkyl of 1 to 4 carbon atoms, alkenyl of 2 to 6 carbon atoms, alkenyloxy of 2 to 6 carbon atoms, alkadienyl of 4 to 8 carbon atoms, methylenedioxy, benzyl and halogens, R.sub.1 is selected from the group consisting of hydrogen and methyl, R.sub.2 is selected from the group consisting of monocyclic aryl and --CH.sub.2 --C.tbd.CH, R.sub.3 is an aliphatic of 2 to 6 carbon atoms having at least one carbon-carbon insaturation, R.sub.4 is selected from the group consisting of hydrogen, --CN, CH.sub.3 and --C.tbd.CH, R.sub.5 is selected from the group consisting of chlorine and methyl, n is 0, 1 or 2, R.sub.6, R.sub.7, R.sub.8 and R.sub.9 are individually selected from the group consisting of hydrogen, chlorine and methyl and S/I indicates that the ring may be aromatic, dihydro or tetrahydro the alcoholic moiety R-OH being capable of containing one or more asymetric carbon atoms and of existing in the form of various stereoisomers and their use to combat pests.