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公开(公告)号：US11414359B2
公开(公告)日：2022-08-16
申请号：US15985656
申请日：2018-05-21
IPC分类号： C05F11/08 , C05G3/90 , C05C9/00 , C05C1/00 , C05C3/00 , C07C251/00 , C05C9/02 , C05C11/00 , C05F3/00 , C05F17/00
摘要： Disclosed are compositions and methods of making a liquid fertilizer additive of biodegradable polymeric and/or oligomeric nitrification inhibitors comprised of utilizing a non-aqueous polar, aprotic organo liquid (NAPAOL) as the reaction medium for the reaction of aldehyde(s) with cyano-containing nitrification inhibitors that have one or more aldehyde reactive groups selected from the group consisting of a) primary, b) secondary amines, c) amides, d) thiols, e) hydroxyls and f) phenols.
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公开(公告)号：US20220250997A1
公开(公告)日：2022-08-11
申请号：US17564047
申请日：2021-12-28
发明人： Yaqing Liu , Yang Xiang , Guizhe Zhao
摘要： The present invention discloses a highly efficient and environment-friendly reactive extrusion integrated continuous preparation process for a biodegradable polymeric multi-nutrient elements nano slow/controlled-release fertilizer and a biodegradable polymeric multi-nutrient elements nano slow/controlled-release fertilizer prepared by the process consisting of urea-formaldehyde macromolecular chains and nano-phosphate. Firstly preparing a methylolurea solution, and then feeding the same into a reactive extrusion integrated machine, adding a phosphate, starting the reaction unit of the reactive extrusion integrated machine to carry out the reaction, and simultaneously starting the vacuumizing devolatilization apparatus to remove moisture from the reaction system; after completing the reaction, starting the extrusion unit of the reactive extrusion integrated machine, extruding to obtain a strip-shaped product, and drying and granulating the same to obtain a finished product. The present invention can achieve forced discharge of the output end of the reaction unit by integrating the extrusion unit and the reaction unit, thereby realizing continuous production of the biodegradable polymeric multi-nutrient nano slow/controlled-release fertilizer. The biodegradable polymeric multi-nutrient nano slow/controlled-release fertilizer prepared by the present invention is firmly bonded between macromolecular chains of urea-formaldehyde through hydrogen bonding, which could impart excellent slow-release performances to nitrogen, phosphorus, potassium and other medium and trace elements; thereby the nutrient use efficiency of the fertilizer is greatly improved.
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13.发明申请公开(公告)号：US20220144718A1
公开(公告)日：2022-05-12
申请号：US17378485
申请日：2021-07-16
摘要： This invention relates to water-soluble/dispersible film system with embedded/entrapped water dispersible materials. Said invention discloses water dispersible film system with crop and vegetables seed strip with embedded/entrapped therein such as to provide precise and desired release of actives ingredients there from and its method of manufacturing for diverse applications, in which a variety of substances such as Fertilizers, Micronutrients, Organic fertilizer, Plant growth hormones, Bio-pesticides, Bioinsecticides, Bio fungicide, Organic Soil Conditioners, Plant growth promoter, Neem pesticides, Humicacid, Weed control (herbicide, preemergence herbicide) including treatments for the removal of dormancy. The invention further discloses novel online and offline process for the manufacture of such multi layered water dispersible film with or without liners and of desired shapes to selectively entrap interacting/non-interacting materials and their combinations.
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公开(公告)号：US11208360B2
公开(公告)日：2021-12-28
申请号：US16083660
申请日：2017-03-10
IPC分类号： C05G1/00 , C05C11/00 , C05C9/00 , C05D9/00 , C05D9/02 , C05G3/00 , C05C9/02 , C05C3/00 , C05C5/00 , C05G5/23 , C05C1/00 , C05F11/00 , A01C15/02 , A01C21/00
摘要： Compositions of a slow-release nitrogen-containing fertilizer and iron chelated to an aminopolycarboxylic acid or a polycarboxylic acid. The composition can be useful as a fertilizer for rapid greening of turfgrass.
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公开(公告)号：US20210380496A1
公开(公告)日：2021-12-09
申请号：US17404932
申请日：2021-08-17
发明人： Gary David McKnight , David Bruce Parker , Yang Zehni , Ray Perkins , Wei Xu
摘要： An improved solvent system for the formulation and application of N-alkyl thiophosphoric triamide urease inhibitors. These formulations provide safety and performance benefits relative to existing alternatives and enable storage, transport and subsequent coating or blending with urea based or organic based fertilizers. These formulations are comprised primarily of environmentally friendly aprotic and protic solvents (particularly dimethyl sulfoxide and alcohols/polyols) to stabilize the urease inhibitor.
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16.发明申请公开(公告)号：US20210371349A1
公开(公告)日：2021-12-02
申请号：US17403475
申请日：2021-08-16
发明人： Harold E. THOMPSON
摘要： Methods of forming a fertilizer composition having slow-release nitrogen compounds with a molten process are disclosed. The methods include mixing of a crystalline polyethylene wax with urea and formaldehyde to form a molten methylene urea mixture. The contents of the molten methylene urea mixture react to form slow-release nitrogen compounds. Fertilizer compositions formed of or including the slow-release nitrogen compounds are also disclosed.
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17.发明申请公开(公告)号：US20210292252A1
公开(公告)日：2021-09-23
申请号：US17207538
申请日：2021-03-19
发明人： Harold E. Thompson , Curtis James MacDonald , Stephanie Von Ville Velez , David Patrick Inglish , Kwame Owusu-Adom
摘要： Methods of forming a fertilizer composition having slow-release nitrogen compounds with a molten process are disclosed. The methods include mixing of a polyethylene wax with urea, formaldehyde, and one or more of an acid catalyst and emulsifier to form a molten methylene urea mixture. The contents of the molten methylene urea mixture react to form slow-release nitrogen compounds. Fertilizer compositions formed of, or including, the slow-release nitrogen compounds are also disclosed.
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公开(公告)号：US20210269372A1
公开(公告)日：2021-09-02
申请号：US17262171
申请日：2019-07-23
摘要： Fertilizers that contain urea-aldehyde condensates. The fertilizer can be spherical and can be formed using a granulation and/or spheronization technique and optionally can be an extruded fertilizer that is spheronized.
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19.发明授权公开(公告)号：US11091404B2
公开(公告)日：2021-08-17
申请号：US16393164
申请日：2019-04-24
发明人： Harold E. Thompson
摘要： Methods of forming a fertilizer composition having slow-release nitrogen compounds with a molten process are disclosed. The methods include mixing of a crystalline polyethylene wax with urea and formaldehyde to form a molten methylene urea mixture. The contents of the molten methylene urea mixture react to form slow-release nitrogen compounds. Fertilizer compositions formed of or including the slow-release nitrogen compounds are also disclosed.
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公开(公告)号：US20200002238A1
公开(公告)日：2020-01-02
申请号：US16570090
申请日：2019-09-13
发明人： Taylor PURSELL , Arthur R. SHIRLEY, JR. , Keith D. COCHRAN , Joseph M. MILLER , Timothy G. HOLT , Gregory S. PEEDEN
摘要： A fertilizer supplying animal nutrients including a core particle having an outer surface and comprising compounds containing animal nutrients, and a coating of urea on the outer surface of the core particle, and further a process of making the fertilizer including the steps of: screening animal nutrient core particles comprising a powdered substance containing an animal nutrient, to a preselected particle size; spraying melted urea onto the surface of the nutrient core particles to produce a coating on the nutrient core particles; granulating the nutrient core particles with sprayed melted urea to produce nutrient core granules; and cooling the nutrient core granules.
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