經濟部智慧財產局員工消費合作社印製 1239233 A7 B7 五、發明說明（/ ) 本發明係關於一種控制蝸牛和赔蝓’特別是於魚池’ 稻田及類似者中之水生蝸牛和蛞蝓之組成物’及一種方法 ，及製備該組成物之方法。 水生蝸牛和蛞蝓，即生活在水中之蝸牛和蛞蝓，爲重 要的，特別是於（食植物維生的）養殖魚之池塘中或要不然 就是於浸沒作物（例如稻田）中之有害物。它們經由剝奪一 些魚的食物，或經由損害或破壞農作植物而致使產生損失 。雖然每平方公尺數千隻蝸牛和蛞蝓之族群密度在實際狀 況下並非未聽過，其容易想像它們可造成相當地破壞。雖 然用來控制陸棲蝸牛和蛞蝓之已證明及有效的組成物及方 法爲可用時，但至目前爲止幾乎沒有任何一種可被利用作 爲水中或浸沒用途。該殺軟體動物活性物質如，例如，聚 乙醛，以粉末或水性懸浮液之形式之施用通常不會達到所 欲結果，因爲該活性物質並不會以必要濃度接觸在底部之 蝸牛和蛞蝓的棲息地或在水生植物上，但在水中或即使在 水表面上則會發生散開。九形餌(“蛞蝓九”），其被成功地 使用來對抗陸棲蝸牛和蛞蝓，亦不適合，因爲，一方面， 它們不能以最理想之作爲浸沒用途之粒徑製造且，另一方 面，該水生蝸牛和蛞蝓不會自該九吸收足夠高劑量的活性 物質。 因此本發明之目的爲提供一種其適合控制水生蝸牛和 蛞蝓之組成物，其作用，事實上，係接觸蝸牛和蛞蝓且致 使吸收致死劑量的活性物質。 此目的可根據本發明藉由根據申請專利範圍第1項之 3 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） ------------Aw----r----訂---------線 (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 1239233 A7 B7 五、發明說明（上） 組成物，根據申請專利範圍第7及8項之製備方法及根據 申請專利範圍第13項之控制蝸牛和蛞蝓的方法而達到。 茲已發現該由具有密度大於1克/公分3之粒狀載體物 質及其包含作爲活性物質之聚乙醛及至少一種黏合劑的包 衣所組成之組成物爲非常適合用來控制水生蝸牛和蛞蝓。 如所欲，該載體物質之密度必須大於1克/公分3，因爲該 組成物在施用至水表面後，否則將不會沉到底部。較佳的 載體物質爲那些具有1.5克/公尺3及更大之密度的載體物 質，特別是那些具有2克/公分3及更大之密度的載體物質 。黏合劑必須確保該活性物質不會在該組成物到達蝸牛和 蛞蝓之環境前自載體表面分離。 該載體物質較佳地由砂及/或粉碎的岩石所組成。這些 物質即使在使用許多年以後及當實質量被施用時，仍爲環 境上可接受。例如，石英砂（p=2.65克/公分3)或珊瑚砂（p «2.9克/公分3)可被使用作爲砂。 特別良好的結果可獲得自作爲載體物質之具有粉碎的 石灰石。此物質具有比，例如，石英砂較少磨蝕之優點且 具有較粗糙的表面，其可改善包衣的附著。 該載體物質較佳地具有0.1至2毫米之粒徑，〇·1至1 毫米之粒徑尤其較佳。一方面，此種尺寸之顆粒足以快速 地沉至水底，另一方面，它們具有足夠的比表面積以吸收 足夠量之活性物質，且它們比較大的顆粒更允許組成物更 一致性的分布。 尤其適合作爲黏合劑的爲水溶性化合物類如，例如， 4 氏張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） "" ----------------r----訂---------線 (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 1239233 A7 B7 五、發明說明（$ ) 矽酸鈉Γ水玻璃’’)或聚丙烯樹脂。矽酸鈉另外因它的鹼性反 應而具有抑制聚乙醛分解(解聚)之優點。 根據本發明組成物之具有活性物質之包衣，較佳地包 含至少一種親水性塡充物。該後者改善包衣的一致性及可 溼性。 作爲塡充物尤其較佳的是基於頁矽酸鹽類之物質，如 黏土及黏土礦物。實施例爲高嶺土，皂土及它們的成分， 高嶺石及蒙脫石。尤其是具有高嶺土之商業上可獲得之名 爲"白陶土”可達到良好結果。 一種製備根據本發明組成物之較佳方法在，於一成粒 或壓九裝置中，其密度大於1克/公分3之粒狀載體物質與 粉狀的聚乙醛且，若適合，另外之塡充物及/或輔助劑藉由 添加一黏合劑溶液包覆及隨後乾燥該物質。 另一較佳製備根據本發明組成物之方法在，於一成粒 或壓九裝置中，其密度爲大於1克/公分3之粒狀載體物質 與包括聚乙醛之懸浮液，一黏合劑及，若適合，另外之塡 充物及/或輔助劑，且，若適合，粉狀的塡充物及/或輔助 劑包覆，及隨後乾燥該物質。此方法所需之聚乙醛懸浮液 係較佳地經由溼式碾磨於水中之聚乙醛及加入濕潤劑及分 散劑生產，且其有利地具有最高可能的聚乙醛含量爲，例 如，50重量％。 針對兩種方法之成粒或壓九裝置之適合實施例爲由不 同的製造商’特別是Eirich所供應之商業上可獲得之壓九 盤及滾筒。尤其是使用名爲Eirich混合器/成粒器之裝置可 5 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） ---------------h--- —訂---------線 (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 1239233 Δ7 Α7 Β7 五、發明說明（f) 達到良好結果。使用這些裝置，其可使用少量的水製備且 因而減少乾燥時間及所需能量。 較佳地，乾燥係在低溫下進行以避免聚乙醛之分解’ 該聚乙醛爲熱敏感性。 可能的輔助劑的實施例爲作爲標記及/或更容易地鑑％ 根據本發明組成物之濕潤劑，著色劑，或驅除劑如辛辣或 有苦味之物質，該物質爲意欲防止經由其他動物及它們白勺 潛在破壞之不欲吸收。 較佳地，該使用之載體物質係主要由砂及或粉碎的# 石所組成。作爲載體物質尤其較佳的是粉碎的石灰石。該 載體物質較佳地具有0.1至2毫米，尤其較佳地爲0.1至1 毫米之粒徑。 該使用之塡充物較佳地爲基於頁矽酸鹽之物質。 根據本發明之組成物係較佳地藉由施用至水表面而被 使用作爲控制，特別是於魚池或稻田中之水生蝸牛及蛞蝓 。該施用比率視該有害物之族群大小而定且爲，通常地， 在1及10克/公尺2 (10-100公斤/公頃)之間。 下列實施例列舉說明根據本發明之組成物的製備及用 途。該沉降行爲經由使用振動刮勺(Mettler LV 2)自10公 分之高度灑〇·1克產物在0.3%強度之氯化鈉溶液上且，在 大約5秒後，測定該已沉降顆粒之比例而被評估。 實施例1 在一壓丸板（型式:Eirich TR04)上，800克石英砂（型式: Sihelco 32，Sihelco AG，Birsfelden/瑞士，粒徑 0.125-0.50 6 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） --------------------訂---------線 (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 1239233 A7 B7 五、發明說明（（Γ ) 毫米)經由連續地噴霧在123克矽酸鈉水溶液(Na20含量爲 4_1%)上被包覆及加入〇·3%之濕潤劑IGEPAL® CO 630(辛 基苯氧基聚（乙撐氧基))乙醇，由Rh0ne Poulenc Chemie所 製造)及125克之可溼性聚乙醒粉末(型式:P〇rsnail，聚乙醒 含量爲75%，高嶺土含量爲25%，由Agchem，馬尼拉/菲 律賓所製造)及75克白陶土(高嶺土）之混合物。該生成顆 粒在30-35°C下於一循環空氣乾燥烘箱中乾燥且經由篩選( 篩孔尺寸1·〇毫米)釋出粗團聚物。該可接受顆粒（S1.0毫 米）之產率爲97.3%，且該聚乙醛之含量經由分析測定爲 8.8%。 實施例2 方法如實施例1，但使用相同量及粒徑之磨碎的石灰石取 代石英砂。該聚乙醛粉末的量爲140克，該白陶土的量爲 57克。此外，3克之Sipemat® 22 LS (高度分散沉澱二氧化 矽，由Degussa AG所製造)被混合。總量146克之矽酸鈉 溶液被使用。該可接受顆粒之產率爲97.1%，且該聚乙醛 之含量爲7.8%。 實施例3 2,400克石英砂(型式:Siheico 32)被導人一高效混合器(型式 :Eirich MPM R 02)中，且與300克矽酸鈉水溶液(Na20含 量爲6.15%)及加入0.3%之濕潤劑IGEPAL® CO 630，攪拌( 混合器及滾筒轉速設定爲1)混合。然後，420克之可溼性 聚乙醛粉末(型式:Porsnail，聚乙醛含量爲75%)及171克白 陶土(高嶺土)及9克之Sipernat® 22 LS之混合物在大約10 7 i紙張尺度適用中國國家標準(CNS)A4規格（210 X 297公釐） ------------#-1111 —訂---------線 (請先閱讀背面之注音？事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 1239233 Δ7 Α7 Β7 五、發明說明（έ) 秒之期間內被加入。混合器及滾筒轉速然後被設定爲2進 行另15秒，於是該包覆程序結束。該生成顆粒乾燥在30-35。(：下於一循環空氣乾燥烘箱中乾燥且經由篩選(篩孔尺寸 1.0毫米)釋出粗團聚物。該可接受顆粒之產率爲96.2%， 且該聚乙醛之含量爲8.6%。 實施例4 方法如於實施例3中所描述，但使用相同量之粒徑0.5-1.0 毫米之磨碎的石灰石取代石英砂且僅使用285克矽酸鈉溶 液。該生成顆粒在30-35°C下於一循環空氣乾燥烘箱中乾燥 且經由篩選(篩孔尺寸1.25毫米)釋出粗團聚物。該可接受 顆粒之產率爲98.4%，且該聚乙醛之含量爲8.8%。該產物 爲容易地濕潤且即使在鹼水中，亦快速地沉降至底部。 實施例5 2，100克磨碎的石灰石(粒徑0.1-0.7毫米)被導入一高效混 合器(型式:Eirich MPM R 02)中且與150克水性黏合劑溶液 包括 1.09%JoncrylTM 678(由 S.C. Johnson 及 Son Inc.製造之 聚丙烯酸樹脂)及〇.25%SER-AD® FX 1100(聚醚聚氨基甲酸 酯，由Servo Delden BV，Delden/荷蘭所製造)攪拌(混合 器及滾筒轉速設定爲1)混合。然後，420克之可溼性聚乙 醛粉末(型式:P〇rsnail，聚乙醛含量爲75%)及450克白陶土 (高嶺土)及30克Sipernat® 22 LS之混合物然後在大約10 秒之期間內被加入。混合器及滾筒轉速然後被設定爲2進 行另30秒，於是該包覆程序結束。該生成之相同地及完整 地包覆粒在室溫下被乾燥且經由篩選(篩孔尺寸1.0毫米)釋 8 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） ---------訂---------線 (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 1239233 Α7 Β7 五、發明說明（1 ) 出粗團聚物。該可接受顆粒之產率爲98.4%，且該聚乙醛 之含量爲9.1%。該產物之塵生成量非常低且該產物爲容易 地溼潤及在應用至水表面時快速地沉降至底部。此外，茲 觀察到該包衣，其包含活性物質，在水下短時間後，變成 與載體物質分離。 實施例6 2，160克磨碎的石灰石(粒徑0.1-0.6毫米)被導入一高速混 合器(型式:Eirich MPM R 02)中且與240克聚乙醛水性懸浮 液（50%聚乙醛，藉由溼式碾磨至小於10微米且加入 0.64%JoncrylTM及0.15%SER-AD®製備)攪拌(混合器及滾筒 轉速設定爲1)混合。一半之由573克白陶土(高嶺土)及30 克Sipernat® 22 LS所組成之粉未混合物隨後在20秒之期 間內被加入且藉由在高速下混合另20秒而被倂入。然後， 加入另外之240克聚乙醛懸浮液，且，在高速15秒後，該 剩餘一半之粉末混合物在20秒之期間內低速混合。最後， 此批次在高速下被均質化45秒。該生成顆粒在室溫下乾 燥且經由篩選(篩孔尺寸1.0毫米)釋出粗團聚物。該可接受 顆粒之產率爲99_0%，且該聚乙醛之含量爲5.9%。當被施 用至水表面時，該產物顯示優良的沉降行爲。 9 表紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公ίΤ ---------------1----訂---------線 (請先閱讀背面之注音？事項再填寫本頁)Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 1239233 A7 B7 V. Description of the invention (/) The present invention relates to a composition of aquatic snails and slugs in rice fields and the like, which is used to control snails and compensations, especially in fish ponds And a method, and a method for preparing the composition. Aquatic snails and tadpoles, that is, snails and tadpoles living in water, are important, especially in ponds that feed on fish (vegetative subsistence) or else harmful substances in submerged crops, such as rice fields. They cause losses by depriving some fish of food, or by damaging or destroying agricultural plants. Although the population density of thousands of snails and cormorants per square meter is not unheard of in actual conditions, it is easy to imagine that they can cause considerable damage. Although proven and effective compositions and methods for controlling terrestrial snails and slugs are available, almost no one has been available to date for use in water or submersion. The molluscicidal active substance such as, for example, polyacetaldehyde, is usually not applied in the form of a powder or an aqueous suspension, because the active substance does not contact the snails and slugs at the bottom in the necessary concentration. Divergence occurs in habitats or on aquatic plants, but in water or even on water surfaces. Nine-shaped bait ("蛞蝓 九"), which has been successfully used against terrestrial snails and slugs, is also unsuitable because, on the one hand, they cannot be manufactured with the optimal particle size for immersion purposes, and on the other hand, the Aquatic snails and tadpoles will not absorb sufficiently high doses of the active substance from this nine. It is therefore an object of the present invention to provide a composition which is suitable for controlling aquatic snails and tadpoles, and its effect is, in fact, to contact snails and tadpoles and cause absorption of a lethal dose of the active substance. This purpose can be achieved according to the present invention by applying the Chinese paper standard (CNS) A4 (210 X 297 mm) to the paper size according to item 3 of the scope of patent application. ------------ Aw- --- r ---- Order --------- line (Please read the notes on the back before filling this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy 1239233 A7 B7 V. Description of the invention ( Above) The composition is achieved according to the preparation method of the scope of application for items 7 and 8 and the method of controlling snails and slugs according to the scope of application for patents. It has been found that the composition consisting of a granular carrier material having a density greater than 1 g / cm3 and a coating comprising polyacetaldehyde as an active substance and at least one binder is very suitable for controlling aquatic snails and Alas. As desired, the density of the carrier material must be greater than 1 g / cm3, because the composition will not sink to the bottom after being applied to the water surface. Preferred carrier materials are those having a density of 1.5 g / cm 3 and greater, especially those having a density of 2 g / cm 3 and greater. The binder must ensure that the active substance does not separate from the surface of the carrier before the composition reaches the environment of snails and slugs. The carrier material preferably consists of sand and / or crushed rock. These substances are environmentally acceptable even after many years of use and when the actual mass is applied. For example, quartz sand (p = 2.65 g / cm3) or coral sand (p «2.9 g / cm3) can be used as the sand. Particularly good results can be obtained from pulverized limestone as a carrier material. This substance has the advantage of being less abrasive than, for example, quartz sand and has a rougher surface, which improves the adhesion of the coating. The carrier material preferably has a particle size of 0.1 to 2 mm, and a particle size of 0.1 to 1 mm is particularly preferred. On the one hand, particles of this size are sufficient to settle quickly to the bottom of the water, on the other hand, they have sufficient specific surface area to absorb a sufficient amount of active substance, and their larger particles allow more uniform distribution of the composition. Particularly suitable as a binder are water-soluble compounds such as, for example, the 4's scale is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) " " ----------- ----- r ---- Order --------- line (Please read the notes on the back before filling this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy 1239233 A7 B7 V. Invention Description ($) Sodium silicate Γ water glass '') or polypropylene resin. In addition, sodium silicate has the advantage of inhibiting the decomposition (depolymerization) of polyacetaldehyde due to its alkaline reaction. The coating with active substance of the composition according to the invention preferably contains at least one hydrophilic filler. The latter improves the consistency and wettability of the coating. Particularly preferred as fillers are phyllosilicate-based substances such as clay and clay minerals. Examples are kaolin, bentonite and their ingredients, kaolinite and montmorillonite. Especially the commercially available name "kaolin" with kaolin clay achieves good results. A preferred method for preparing the composition according to the invention is in a granulation or compaction device with a density greater than 1 gram. A granular carrier material of 3 cm and powdered polyacetaldehyde and, if appropriate, additional fillers and / or adjuvants by coating with a binder solution and subsequently drying the material. Another preferred preparation The method according to the composition of the present invention is, in a granulating or pressing device, a granular carrier material having a density of more than 1 g / cm3 and a suspension including polyacetaldehyde, a binder and, if appropriate, Additional tinctures and / or adjuvants, and, if appropriate, powdered tinctures and / or adjuvants, and subsequent drying of the substance. The polyacetaldehyde suspension required for this method is preferably Produced by wet milling of polyacetaldehyde in water and adding a wetting agent and dispersant, and which advantageously has the highest possible polyacetaldehyde content of, for example, 50% by weight. Granulation or pressing for two methods A suitable embodiment of the device is "Eirich's commercially available compact discs and rollers. Especially using a device called Eirich mixer / granulator. 5 This paper size is applicable to China National Standard (CNS) A4 specification (210 X 297 mm) --------------- h --- —order --------- line (please read the notes on the back before filling this page) Ministry of Economy Printed by the Consumer Property Cooperative of the Intellectual Property Bureau 1239233 Δ7 Α7 Β7 5. Description of the Invention (f) Good results have been achieved. Using these devices, they can be prepared with a small amount of water and thus reduce the drying time and required energy. Preferably, the drying system Performed at low temperature to avoid decomposition of the polyacetaldehyde. The polyacetaldehyde is thermally sensitive. Examples of possible adjuvants are as markers and / or easier identification of wetting agents, colorants of the composition according to the invention Or a repellent such as a spicy or bitter substance, the substance is intended to prevent undesired absorption by other animals and their potential damage. Preferably, the carrier material used is mainly composed of sand and or crushed # 石Composition. Particularly preferred as a carrier material is powder. The carrier material preferably has a particle size of 0.1 to 2 mm, particularly preferably 0.1 to 1 mm. The filler used is preferably a phyllosilicate-based material. According to the invention The composition is preferably used as a control by being applied to the water surface, especially aquatic snails and slugs in fish ponds or rice fields. The application rate depends on the size of the pest and is, in general, at 1 and 10 g / m 2 (10-100 kg / ha). The following examples illustrate the preparation and use of the composition according to the invention. The settling behavior is determined by using a vibrating spatula (Mettler LV 2) from 10 0.1 cm of product was sprinkled on 0.3% strength sodium chloride solution and, after about 5 seconds, the proportion of the settled particles was measured and evaluated. Example 1 On a pellet board (type: Eirich TR04), 800 g of quartz sand (type: Sihelco 32, Sihelco AG, Birsfelden / Switzerland, particle size 0.125-0.50 6 This paper size applies to Chinese National Standard (CNS) A4 Specifications (210 X 297 mm) -------------------- Order --------- Line (Please read the precautions on the back before filling in this Page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 1239233 A7 B7 V. Description of the invention ((Γ) mm) The 123 g sodium silicate aqueous solution (Na20 content 4_1%) is coated and added by continuous spraying. 3% wetting agent IGEPAL® CO 630 (octylphenoxy poly (ethyleneoxy)) ethanol, manufactured by Rh0ne Poulenc Chemie) and 125 g of wettable polyethylene glycol powder (type: Porsnail, Polyethylene content is 75%, kaolin content is 25%, manufactured by Agchem, Manila / Philippines) and 75 g of white clay (kaolin). The resulting particles were dried in a circulating air drying oven at 30-35 ° C and the coarse aggregates were released through screening (sieve opening size 1.0 mm). The yield of the acceptable particles (S1.0 mm) was 97.3%, and the content of the polyacetaldehyde was determined to be 8.8% by analysis. Example 2 The method was the same as in Example 1, but the ground sand of the same amount and particle size was used instead of quartz sand. The amount of the polyacetaldehyde powder was 140 g, and the amount of the white clay was 57 g. In addition, 3 grams of Sipemat® 22 LS (highly dispersed precipitated silica, manufactured by Degussa AG) were mixed. A total of 146 grams of sodium silicate solution was used. The yield of the acceptable particles was 97.1%, and the content of the polyacetaldehyde was 7.8%. Example 3 2,400 g of quartz sand (type: Siheico 32) was introduced into a high-efficiency mixer (type: Eirich MPM R 02), and 300 g of sodium silicate aqueous solution (Na20 content of 6.15%) was added to 0.3% Wetting agent IGEPAL® CO 630, mixing (mixer and drum speed set to 1) and mixing. Then, a mixture of 420 grams of wettable polyacetaldehyde powder (type: Porsnail, 75% polyacetaldehyde content) and 171 grams of white clay (kaolin) and 9 grams of Sipernat® 22 LS is suitable for China at a paper scale of about 10 7 i National Standard (CNS) A4 Specification (210 X 297 mm) ------------ #-1111 —Order --------- Line (Please read the note on the back first? Matters (Fill in this page again.) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, 1239233 Δ7 Α7 Β7 V. Description of Invention (έ) Added during the period of seconds. The mixer and drum speeds were then set to 2 for another 15 seconds, and the coating process was completed. The resulting particles are dried at 30-35. (: It is then dried in a circulating air drying oven and coarse aggregates are released through screening (sieve opening size 1.0 mm). The yield of the acceptable particles is 96.2%, and the content of the polyacetaldehyde is 8.6%. Implementation Example 4 The method was as described in Example 3, but the same amount of ground limestone with a particle size of 0.5-1.0 mm was used instead of quartz sand and only 285 grams of sodium silicate solution was used. The resulting particles were at 30-35 ° C Next, it was dried in a circulating air drying oven and coarse aggregates were released through screening (sieve size 1.25 mm). The yield of the acceptable particles was 98.4%, and the content of polyacetaldehyde was 8.8%. The product was Easily wet and settles quickly to the bottom even in alkaline water. Example 5 2,100 g of ground limestone (particle size 0.1-0.7 mm) is introduced into a high-efficiency mixer (type: Eirich MPM R 02) And 150 grams of aqueous adhesive solution including 1.09% JoncrylTM 678 (polyacrylic resin manufactured by SC Johnson and Son Inc.) and 0.25% SER-AD® FX 1100 (polyether polyurethane, by Servo Delden BV, Delden / made in the Netherlands) Stirring (mixer and drum speed set to 1) Mix. Then, a mixture of 420 grams of wettable polyacetaldehyde powder (type: Porsnail, 75% polyacetaldehyde) and 450 grams of white clay (kaolin) and 30 grams of Sipernat® 22 LS is then mixed in about It is added over a period of 10 seconds. The mixer and drum speed are then set to 2 for another 30 seconds, so the coating process ends. The resulting uniform and complete coated granules are dried at room temperature and screened (Sieve opening size 1.0mm) release 8 This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) Read the notes on the back before filling this page) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 1239233 Α7 Β7 V. Description of the invention (1) A coarse agglomerate was produced. The yield of this acceptable pellet was 98.4%, and the aggregate The content of acetaldehyde was 9.1%. The dust generation amount of this product was very low and the product was easily wetted and quickly settled to the bottom when applied to a water surface. In addition, the coating was observed to contain an active substance, After a short time under water, it becomes separated from the carrier material. Example 6 2, 160 g mill The limestone (particle size 0.1-0.6 mm) was introduced into a high-speed mixer (type: Eirich MPM R 02) and mixed with 240 g of aqueous polyacetal suspension (50% polyacetaldehyde) by wet milling to less than 10 micron and add 0.64% JoncrylTM and 0.15% SER-AD®) Stir (mixer and roller speed set to 1) and mix. Half of the powder mixture consisting of 573 grams of white clay (kaolin) and 30 grams of Sipernat® 22 LS was then added over a period of 20 seconds and poured in by mixing at high speed for another 20 seconds. Then, another 240 g of the polyacetal suspension was added, and after 15 seconds at high speed, the remaining half of the powder mixture was mixed at low speed over a period of 20 seconds. Finally, the batch was homogenized at high speed for 45 seconds. The resulting particles were dried at room temperature and coarse aggregates were released through screening (sieve opening size 1.0 mm). The yield of the acceptable particles was 99_0%, and the content of the polyacetaldehyde was 5.9%. When applied to a water surface, the product shows excellent sedimentation behavior. 9 Table paper size is applicable to China National Standard (CNS) A4 specifications (210 X 297 males) --------------- 1 ---- order --------- line (Please read the Zhuyin on the back? Matters before filling out this page)