TW565583B - An aqueous dispersion of a particulate solid having a hydrophobic outer surface and films produced thereby - Google Patents

An aqueous dispersion of a particulate solid having a hydrophobic outer surface and films produced thereby Download PDF

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TW565583B
TW565583B TW87102921A TW87102921A TW565583B TW 565583 B TW565583 B TW 565583B TW 87102921 A TW87102921 A TW 87102921A TW 87102921 A TW87102921 A TW 87102921A TW 565583 B TW565583 B TW 565583B
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aqueous dispersion
scope
item
hydrophobic
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TW87102921A
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Dennis G Sekutowski
Gary J Puterka
David Michael Glenn
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Engelhard Corp
Us Agriculture
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G7/00—Botany in general
    • A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G7/00—Botany in general
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/20—Forcing-frames; Lights, i.e. glass panels covering the forcing-frames
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
    • A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/26—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests in coated particulate form
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/06—Aluminium; Calcium; Magnesium; Compounds thereof
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/006—Anti-reflective coatings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S424/00—Drug, bio-affecting and body treating compositions
    • Y10S424/10—Insect repellent
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S47/00—Plant husbandry
    • Y10S47/11—The application of protective coatings to plants
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/4935—Impregnated naturally solid product [e.g., leather, stone, etc.]
    • Y10T428/662—Wood timber product [e.g., piling, post, veneer, etc.]

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Zoology (AREA)
  • Dentistry (AREA)
  • Plant Pathology (AREA)
  • Pest Control & Pesticides (AREA)
  • Agronomy & Crop Science (AREA)
  • Forests & Forestry (AREA)
  • Ecology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Organic Chemistry (AREA)
  • Botany (AREA)
  • Toxicology (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Fertilizers (AREA)
  • Catching Or Destruction (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Paints Or Removers (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Cultivation Of Plants (AREA)
  • Paper (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pretreatment Of Seeds And Plants (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Description

經濟部中央標準局員工消費合作社印製 565583 kl B7 五、發明説明ί ) 發明範圍 本發明係針對具疏水性外表面的粒狀固體之水性分散 液，它適合用在底質上以於其上形成連續疏水性薄膜。本 發明的薄膜應用包括塗覆表面以使它們具有防水性。 發明背景 以前的技術已經知道使用惰性粒狀固體作爲殺蟲劑， 此可參考，如：Diggers，B.F··，"Experiments with Talc and Otehr Dusts Used Against Recently Hatched Larvae of the Oriental and Codling MothsM, J.Econ.Ent.,22,327-334(1 929) •’ Hunt C.R., "Toxicity of Insecticide Dust Diluents and Carriers to Larvae of the Mexican Bean Beetle", J.Econ, Ent.,40,215-2 1 9( 1 947);和 US patent 3，1 59，536( 1 964)，茲 將其中的每一者倂入本文中以資參考。 這些參考文獻都描述將粒狀固體以乾燥細粒形式用於 葉片或昆蟲上。雖然乾燥細粒在實驗室實驗中有用，但卻 無法用於大規模農業用途上。乾燥細粒之使用因爲顆粒極 細（通常約小於3 0微米，顆粒尺寸中間値基本上介於 0 . 5和3 . 0微米之間），所以容易飄浮，因此對環境 有相當不利的衝擊。乾燥顆粒也無法良好地黏附在目標底 質（如：植物）上。基本上只有1 0 %至2 0 %的乾燥細 粒丨殿積在目標上（Pesticide Application Methods, G.A. M a t h e w s L ο n g m a n S c i e n t i f i c & T e c h n i c a 1，第 2 版（1 9 9 2))。 已經測定出疏水性粒狀固體可以液體組成物形式用於 (請先閱讀背面之注意事項再填寫本頁)
本紙張尺度適用中國國家標準（CNS ) A4規格（210X29*7公f ) -4 - 經濟部中央標準局員工消費合作社印製 565583 A7 B7 五、發明説明？) 底質而形成疏水性塗層。此處，粒狀物質與具親水性末端 和親油性末端的分散劑合倂，之後加入水中而形成水性分 散液。此分散劑濃縮物於位於疏水性物質和水之間的內相 處，分散劑的親脂性末端靠近疏水性物質，而親水性末端 靠近水。 一般類型的分散劑以化學官能性（如：陽離子性、陰離 子性、兩性離子性、非離子性）分成不同種類。典型的界面 活性劑的例子包括皂（羧酸鹽）、磺酸鹽、硫酸化的醇乙氧化 物、烷基酚乙氧·化物、羧酸和聚氧乙烯醚、胺類、咪唑啉 及四級銨鹽。已有包含數百種市售分散劑的詳細列表（請參 考 McCutcheon's Emulsifiers Detergents N.Amer.Ed.( 1 995) )° 但是，分散劑之使用會使得粒狀疏水性物質變成親水 性並在乾燥之後維持此親水性。因此。將這樣的分散劑置 於底質上時，會使它們含水。水會造成許多底質的表面受 損，其中損及包括農作物和其他植物（疾病）、木料（腐敗）、 '混凝土（凍裂）、土壤（侵蝕）、織品、固態化學品（如：肥料（ 滲漏））之類。據此，使用分散劑來施用疏水性粒狀固體分散 液以保護表面有其問題存在。 因此，將疏水性粒狀固體施用在底質上以使底質具有 粒狀固體的連續薄膜並維持疏水性有著顯著的優點。所得 的薄膜必須使得底質實質上不會因水而受損。 發明槪述 本紙張尺度適用中國國家標準（〇奶）八4規掊（210'/ 297公麓）-5 - (請先閱讀背而之注意事項再填寫本頁)
經濟部中央標準局負工消費合作社印製 565583 A7 五、發明説明$ ) 本發明一般係關於水性分散液，及關於由彼所形成的 連續膜’其中，至少具有疏水性外表面的粒狀固體以水性 分散液形式形成，之後塗覆在底質上而形成連續膜並維持 其疏水性。 特別地，本發明係關於包含下列物種的分散液： a) 具疏水性外表面的粒狀固體； b) 低沸點有機液體，其量足以使得粒狀固體在水中形 成分散液並在乾燥之後維持其疏水性外表面；及 c) 水。 本發明的另一特點中，.提出一種在底質上形成疏水性 連續膜的方法，包含： a) 將具疏水性外表面的粒狀固體加至其量足以形成漿 狀物的低沸點有機液體中； b) 將該漿狀物加至水中而形成該粒狀固體的水性分散 液； c) 將該水性分散液施用在底胃上；及 d) 乾燥此水性分散液，藉此在底質上形成該粒狀固體 的疏水性連續膜。 發明詳述 本發明之疏水性細粒狀固體可以是本身具疏水性者（如 :滑石、石墨）或可以是藉由施用適當的疏水性潤濕劑外塗 層而使其具有疏水性的固體（如：具有非疏水性核心和疏水 性外表面的粒狀固體）？這樣的物劑在此技藝中已爲習知’ 本紙張尺度適用中國國家標準（CNS ) Λ4規枱（210X 297公嫠）-6 - (請先閲讀背面之注意事項再填寫本頁)
565583 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明f ) 常見的例子包括：鉻化合物，如：得自DuPont的Volvan®和 Quilon® ;有機鈦酸鹽，如：得自Tioxide Chemicals的 Tilcom® ;得自 KenrichPetrochemical的有機鍩酸鹽或銘酸 鹽偶合劑；有機官能性矽烷，如：得自Witco的Silciuest®或 得自PCR的Prosil® ;經修飾的矽酮流體，如：得自Shin Etsu的 DM-Fluids ;及脂肪酸，如：得自 Witco Corporation 的 Hystrene® 或Industrene® 或得自 Henkel Corporation 的 Emersol®產品（硬脂酸和硬脂.酸鹽是使顆粒表面維持疏水性 之特別有效的脂肪酸）。 許多類型的細粒狀固體事先以疏水性潤濕劑處理以其 表面具有疏水性，因此顆粒在用於非水性基質（如：用於塑 膠、橡膠和有機塗層）時會潤濕而能有較好的分散結果。市 售之經疏水性處理之典型的粒狀固體包括：無機物（如：碳 酸鈣、雲母、滑石、高嶺土、膨潤土、黏土、活性白土、. 葉蠟石、鈣矽石、矽石、長石、砂、石英、白堊、石灰石 、沉積的碳酸鈣、矽藻土和重晶石）、官能性塡料（如：微球 粒（陶瓷、玻璃和有機物）、三水合鋁、熱解的矽石、陶瓷纖 維和玻璃纖維）及顏料（如：著色劑或二氧化鈦）。較佳的市 售疏水性粒狀固體的例子是由Engelhard Corporation，Iselin， NJ以Translink®註冊名稱銷售的顆粒。 此處所謂的a細粒〃是以標準圖或雷射光散射法測得 之顆粒尺寸中間値低於約1 0微米（以低於3微米爲佳） 的顆粒。較佳的情況是：粒狀固體材料的顆粒尺寸分佈中 ，高至0 %的顆粒之顆粒尺寸低於約1 0微米。 本紙張尺度適用中國國家標準（CNS ) Λ4規格（210X 297公楚)"""7jl (請先閱讀背而之注意事項再填寫本頁)
經濟部中央標準局員工消費合作社印製 565583 A7 B7 五、發明説明p ) 本發明中所用的低沸點有機液體以具有1至6個碳原 子者爲佳。此處所謂的、、低沸點〃是指有機液體的沸點通 常不超過1 〇 〇 °c。這些液體使得粒狀固體維持細粒狀態 而不會有明顯結塊的情況發生。這樣的低沸點有機液體的 例子有：醇類（如：甲醇、乙醇、丙醇、異丙醇、異丁醇 之類）、酮類（如：丙酮、丁酮之類）和環狀醚類（如： 環氧乙烷、環氧丙烷和四氫呋喃）。也可以倂用前述液體 。較佳的液體是甲醇。 此低沸點有機液體的用量足以形成粒狀固體材料的分 散液。低沸點有機液體的用量基本上高至水性分散液之約 3 0體積％，以約3至5體積％爲佳，約3 · 5至 4 · 5體積％更佳。較佳的情況是：此疏水性粒狀固體加 至低沸點有機液體中而形成漿狀物，之後漿狀物以水稀釋 而形成水性分散液。所得的漿狀物維持顆粒的細粒形式， 其中大部分的顆粒分散至顆粒尺寸低於1 0微米。 下列實例說明本發明之實施例，不欲以其限制本發明 ，本發明之範圍由所附的申請專利範圍定義。 實例1 3克的疏水性黏土（Tfanslink® 77，Engelhard Corporation製造）分別以2、4、6、8和10毫升甲醇 稀釋。之後，樣品以去離子水稀釋至總體積爲1 0 0毫升 ，得到一系列分別含有2、4、6、8和1 0重量％甲醇 的漿狀物。 本紙張尺度適用中國國家標準（匚奶）六4規格（210乂 297公漦）· 8 - (請先閲讀背面之注意事項再填寫本頁)
經濟部中央標率局負工消費合作社印製 565583 B7__ 五、發明説明$ ) 此甲醇/水漿狀物靜置2 4小時，之後將有兩面環繞 黏合帶的玻片浸泡在漿狀物中。藉由測定由疏水性顆粒的 水性分散液製得之乾燥顆粒薄膜的接觸角度以定出疏水性 。此處所用的靜態接觸角度是藉由畫出接觸點上的切線而 測得之介於液體和固體之間的平衡角度。以Wilhelmy技巧 ，動態接觸角度分析器記錄在玻片或另一面離開或浸入液 體中時的前進和後退接觸角度。潤濕力和接觸角度之間的 關係由下面所示之經修飾的Y 〇 u n g s等式表示： F = rpcos0 其中，F =潤濕力；r =液體表面張力；而p =潤濕周邊長度 此處所有的測定皆在水中使用有黏合帶環繞的玻片或 經粒狀固體塗覆的雙面膠帶進行。使用鉑片進行水表面張 力之校正。 角度小於90度視爲親水性，而角度大於90度視爲疏水 性。各種乾燥的顆粒薄膜之接觸角度以Cahn DCA(Dynamic Contact Angle動態接觸角）儀器測定。其結果示於表1。所 有根據本發明形成的薄膜皆具疏水性，其接觸角皆遠大於 9 0度。 以與前述相同的方式但未使用甲醇地製得對照組樣品 。未使用甲醇，疏水性黏土浮在水面上，即使劇烈振動也 不會被潤濕。 實例2 3 克的 Translink® 77 (Engelhard Corporation 製造）分別 本紙張尺度適用中國國家標準（CNS ) A4規格（21 OX 297公釐）~ΓοΊ (請先閱讀背面之注意事項再填寫本頁)
565583 A7 B7 五、發明説明θ ) 以2、4、6、8和1 0毫升乙醇稀釋。之後，樣品以去 離子水稀釋至總體積爲1 0 0毫升，得到一系列分別含有 2、4、6、8和1 0重量％乙醇的漿狀物。以實例1所 述的方式測定接觸角度。其結果列於表1。含有乙醇的漿 狀物之接觸角皆遠大於9 0度。因此，根據本發明形成的 每個樣品皆保有疏水性。 表1 醇％ 實例1#角 實例^角 2 164° 148° 4 151° 153° 6 147° 140° 8 130° 167° 10 155° 157° 經濟、邵中央標準局員工消費合作社印繁 實例3 Translink® 77分散在如表2所示之含有乙醇和/或甲醇 的溶液中，樣品以水稀釋後得到含有4體積％乙醇/甲醇混 合物分散液的漿狀物。製得分散液之後的1、8、24小時及 比24小時長的時間製得乾燥的顆粒薄膜。以實例1所述的方 式測定接觸角度。其結果列於表2。如表2所示者，本發明 的一系列中的每一者之接觸角皆遠大於90度，顯示此乾燥 的顆粒薄膜呈疏水性。此分散劑的安定時間也超過24小時 (請先閱讀背面之注意事項再填寫本頁}
本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -10- 565583 A7 B7 --- 五'發明説明& ) 表2 & % 乙醇 m 接Μ 接觸g 24小時 >24小時 4 0 158° 156° 142° 152° 3 、1 138° 153° 139° 143° 2 卜2 132° 136° 154° 141° 1 3 149° 155° 157° 153° 0 4 159° 133° 150° 147° 實例4- 於低剪截混合條件下在水中製得四個含4克Translinl^ 77的分散液。第一個分散液使用4%甲醇作爲分散劑。第二 個分散液以相同方式製得，但甲醇以四滴烷氧化的脂肪胺< Ethomeen 0/12，Akzo Nobel Chemicals，Inc.銷售）代替。第 三個分散液以相同方式製得，但使用四滴牛油羥基乙基咪 Π坐啉（Monazloline T，MONA Industries, Inc.銷售）。第四個 分散液以相同方式製得，但使用四滴環氧丙烷環氧乙烷團 聯共聚物（Pluronic L-62，BASF Corporation銷售）。 測定所得漿狀物的顆粒尺寸分佈，其結果列於表3。 (請先閱讀背面之注意事項再填寫本頁)
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經濟部中央標率局貝工消費合作社印紫 本紙张尺度適用中國國家標率（CNS)A4規格（210X 297公釐）· 565583 A7 B7 、發明説明自） 表3 分散劑 __ 粒徑分佈 <10% <50% 00¾ 甲醇 0.92 3.0 9.1 Ethomeen 0/12 2.0 7.3 114.0 Monazline T 2.3 7.4 87.3 Pluronic L-62 2.3 7.8 90.1 (請先閱讀背面之注意事項再填寫本頁)
經濟部中央標準局員工消費合作社印繁 如表3所示者’根據本發明而形成的水性分散液的顆 粒比由工業上使用之典型的分散劑所形成的分散液細得多 。例如，本發明之分散液中，高至9 〇 %的顆粒的粒徑爲 9 · 1或以下，而最接近的比較例有高至9 0 %的顆粒粒 徑爲8 7 · 3。 前述分散液中的每一者噴灑在經塗覆的玻片上並使其 乾燥。之後，將一滴水置於玻片上。根據本發明，在玻片 上的液滴仍呈珠狀且不會分散，顯示此塗層具疏水性。位 於其他玻片上的水滴渙散，顯示顆粒薄膜具親水性。 實例5 如實例4地在高剪截速率下製得四種漿狀物。特別地， 這些漿狀物以Cowles高速刮刀在Premier Mill Corporation高 速分散機中硏磨30分鐘。測定漿狀物的顆粒尺寸，過濾剩 -ϋϋ i -*V ϋ ϋ_ϋ —.^1 -\\口
本紙張尺度適用中國國家標率（CNS ) Α4規格（210Χ 297公釐）-- 565583 A7 B7 I、發明説明(ίο ) 下的漿狀物，測定乾燥顆粒的接觸角。其結果列於表4。 表4 分散劑 顆粒尺寸粒徑分佈中間值 接觸角度 甲醇 2.1 160.0 Ethomeen 0/12 37.0 76.0 Monazline T 62.2 53.5 Pluronic L-62 3.3 48.3 (請先閱讀背面之注意事項再填寫本頁) in 如表4中所示者，許多附聚物在高速條件下破碎。但陵 了使用甲醇的樣品之外，顆 粒不再具有疏水性。 實例6 此實例證明本發明在農業方面的用途。100磅 Translink® 7 7在塑膠桶中以攪拌刀溫和地攪入1 6加侖刊 售甲醇中。然後將此混合物移至循環噴灑槽中並以水稀釋 至4 0 0加侖，形成3% Translink® 7 7和4 %甲醇於水中 之漿狀物。混合5分鐘之後，分散液已可用於噴灑。以配 備有標準扇形噴嘴的Friendly®水力噴灑裝置噴灑水蜜桃和 蘋果園。噴灑之後，由水滴在葉面上呈珠狀得知經噴灑的 樹葉在乾燥之後具疏水性。 本紙张尺度適用中國國家標準（CNS ) A4規格（210X 297公釐）_ 13 -
經濟部中央標率局員工消費合作社印¾ 經濟部中央標枣局員工消費合作社印聚 565583 A7 — B7 五、發明説明（11 )
MTL 重覆實例6，但甲醇以 1 %Safer®Soap(Safer Incorporated 銷售’其爲脂肪酸鉀，一般作爲農用界面活性劑和殺蟲劑） 代替。以如實例6所述方式噴灑果園。乾燥之後，噴在葉面 的水滴渙散·，由此得知樹葉具親水性。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）_ 14 - (讀先閱讀背面之注意事項再填寫本頁)

Claims (1)

  1. >年(月ψ
    565583 六、申請專利範圍 ;公告本 附件一（A ): ----------—~ 第871 02921號專利申請案 中文申請專利範圍修正本 民國90年4月修正 1 · 一種水性分散液，其包含： a ) —種具疏水性外表面的粒狀固體材料，該粒 狀固體材料係選自碳酸鈣、高嶺土、以及葉蠟石所組成之 群；， b )至多達約3 0體積％之醇，其可以使得粒狀 固體材料在水中形成分散液並在乾燥之後維持其疏水性外 表面；及 c )水。 2 ·如申請專利範圍第1項之水性分散液，其中，粒 狀固體材料包含一非疏水性核心和一疏水性外表面。 3 ·如申請專利範圍第1項之水性分散液，其中，該 醇的量是以水性分散液計之約3至5體積％。 4 ·如申請專利範圍第1項之水性分散液，其中，該 醇的量是以水性分散液計之約3 · 5至4 · 5體積％。 5 ·如申請專利範圍第1項之水性分散液，其中，該 醇具1至6個碳原子。 6 ·如申請專利範圍第5項之水性分散液，其中，該 醇爲甲醇。 7 ·如申請專利範圍第1項之水性分散液，其中，粒 狀固體材料的顆粒尺寸分佈中，最多達到9 0%的顆粒具 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公缝） (請先閱讀背面之注意事項再 1裝-- 本育 、1T 565583 Λ8 B8 C8 D8 _ 六、申請專利範圍 有顆粒尺寸低於約1 〇微米。 8 · —種在底質上形成疏水性連續膜的方法’其包含 a )將具有一疏水性外表面以及一非疏水性核心 的粒狀固體材料加至一其量足以形成漿狀物的低沸點有機 液體中，其中該低沸點有機液體具有不超過1 0 0 °C之沸 點； b )將該漿狀物加至水中而形成該粒狀固體材料 的水性分散液； c )將該水性分散液施用在底質上；及 d )乾燥此水性分散液，藉此在底質上形成該粒 狀固體材料的疏水性連續膜。 .. 9 ·如申請專利範圍第8項之方法’其中’低沸點有 機液體的量最多達到水性分散液的約3 0體積％。 1 0 ·如申請專利範圍第8項之方法，其中，步驟（ d )包含蒸發此水性分散液。 經濟部智慧財.4/»7a(工消費合作钍印製 1 1 .如申請專利範圍第8項之方法，其中，低沸點 有機液體具有1至6個碳原子。 1 2 ·如申請專利範圍第1 1項之方法，其中，低沸 點有機液體選自醇類、酮類、環狀醚類及它們的混合物所 組成之群^ 1 3 ·如申請專利範圍第1 2項之方法，其中，低沸 點有機液體是甲醇。 1 4 ·如申請專利範圍第8項之方法，其中，底質選 一 2- 本紙張尺度適用中國國家標準（CNS ) A4現格（210X297公釐） 565583 A8 B8 C8 D8六、申請專利範圍 自包括農作物、樹、植物、木料、混凝土、土壤、織品和 固態化學品。 1 5 · —種連續疏水性薄膜，其特徵爲其製自如申請 專利範圍第8項之方法。 (請先閱讀背面之注意事項再本頁) 裝' 、11 線--1, 木紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）.3-
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