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公开(公告)号：US20190031912A1
公开(公告)日：2019-01-31
申请号：US15780379
申请日：2016-11-30
Inventor： Raju ADHIKARI
IPC: C09D175/12 , C08G18/10 , C08G18/60 , C08G18/62 , C08G18/34 , C08G18/32 , C08G18/08 , C08G18/65 , C08G18/75 , C05G3/00 , A01G13/02
Abstract: A process for preparing a polymeric membrane for materials used in crop production comprising: a) providing an aqueous dispersion of a polyurethane or polyurethane-urea elastomer comprising segments formed from the copolymer segment of Formula I A1-[Y1]n-L-[Y2]q-A2 Formula I wherein A1 is an end capping group; A2 is hydrogen or an end capping group; each [Y1]n and [Y2]q is independently selected from a polyether macrodiol, polycarbonate macrodiol, polyester macrodiol, and wherein at least one of [Y1]n and [Y2]q is a polyester macrodiol; L is a divalent linking compound independently selected from urethane, urea, carbonate, ester, and phosphonate; n is an integer of 2 to 50; q is an integer of 2 to 50; and b) spraying the aqueous dispersion onto materials to be used in crop production to form a polymeric membrane on the materials.
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公开(公告)号：US20200031728A1
公开(公告)日：2020-01-30
申请号：US16337608
申请日：2017-09-28
Inventor： Raju ADHIKARI , Tim Harvey MUSTER , George FREISCHMIDT
Abstract: A controlled release granular fertiliser composition comprising a mixture of nitrogenous fertiliser, particulate silicate mineral filler and biodegradable ionic polyurethane.
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Patent Agency Ranking
公开(公告)号：US20180346654A1
公开(公告)日：2018-12-06
申请号：US15771719
申请日：2016-10-28
Inventor： Pathiraja Arachchillage GUNATILLAKE , Mark BOWN , Raju ADHIKARI
IPC: C08G77/458 , C08G77/46 , C08G81/02 , C08L83/12
CPC classification number: A61L27/18 , A61F2/2409 , A61F2210/0071 , A61F2240/00 , A61L2430/20 , C08G77/458 , C08G77/46 , C08L75/04
Abstract: The present disclosure provides soft block copolymer segments of Formula 1 for thermoplastic polyurethane or polyurethaneurea elastomer materials and their reaction products with divalent compounds, such as diisocyanates, chain extenders and optional additional polyols or polyamines. Also disclosed herein are methods for the production of the soft block copolymer segments, and possible applications of these materials in the formation of biomaterials for articles including medical devices such as implants, heart valves and drug delivery devices.
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公开(公告)号：US20220183238A1
公开(公告)日：2022-06-16
申请号：US17686462
申请日：2022-03-04
Inventor： Raju ADHIKARI , Philip CASEY , Keith L. BRISTOW , George FREISCHMIDT , John HORNBUCKLE
IPC: A01G13/02 , C08G18/75 , C08G18/08 , C08G18/32 , C08G18/12 , C08L75/04 , C08G18/42 , C08G18/48 , C08G18/38 , C08G18/24 , C08G18/40 , C08G18/28 , C09D175/04
Abstract: A process for preparing a polymeric membrane for soil materials used in crop production comprising providing an aqueous dispersion of polyurethane and spraying the aqueous dispersion onto soil materials to be used in crop production to form a polymeric membrane.
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公开(公告)号：US20170135292A1
公开(公告)日：2017-05-18
申请号：US15316241
申请日：2015-06-03
Inventor： Raju ADHIKARI , Philip CASEY , Keith L. BRISTOW , George FREISCHMIDT , John HORNBUCKLE
CPC classification number: A01G13/0275 , A01G2013/004 , C08G18/0814 , C08G18/0823 , C08G18/12 , C08G18/246 , C08G18/2865 , C08G18/3206 , C08G18/3228 , C08G18/3823 , C08G18/4018 , C08G18/4277 , C08G18/4825 , C08G18/755 , C08G2310/00 , C08L75/04 , C09D175/04 , C08L5/04 , C08L33/26
Abstract: A process for preparing a polymeric membrane for soil materials used in crop production comprising providing an aqueous dispersion of polyurethane and spraying the aqueous dispersion onto soil materials to be used in crop production to form a polymeric membrane.
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公开(公告)号：US20200029557A1
公开(公告)日：2020-01-30
申请号：US16337666
申请日：2017-09-28
Inventor： Nicholas EBDON , Raju ADHIKARI , Michael Shane O'SHEA , Tim Harvey MUSTER , Caroline JOHNSTON , Tri NGUYEN
IPC: A01N25/26 , C05C1/02 , C05G3/00 , C05C3/00 , C05C9/00 , C08G18/08 , C08G18/10 , C08G18/34 , C08G18/42 , C08G18/66 , C08G18/75
Abstract: A granular controlled release agrichemical composition having a matrix including an agrichemical active and a coating for providing controlled release of the agrichemical active from the granular composition, wherein the coating has at least one biodegradable polymer selected from the group consisting of aliphatic polyesters, polyanhydrides, polycarbonates, polyurethanes including aliphatic polyester segments, polyureas including aliphatic polyester segments, copolymers of two or more thereof and mixtures thereof wherein the coating composition includes a Lewis acid in an amount sufficient to enhance degradation of the coating.
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公开(公告)号：US20190055470A1
公开(公告)日：2019-02-21
申请号：US16078758
申请日：2017-03-21
Inventor： Priscilla JOHNSTON , Raju ADHIKARI , Keith L. BRISTOW
Abstract: A process for regulating the water retention of soil materials used in agriculture involving providing a composition comprising a polymer selected from the group consisting of a urethane, a urethaneurea, a thiocarbamate and mixtures thereof, said polymer comprising hydrophobic and hydrophilic segments; and applying the composition onto soil materials used in agriculture to form a polymer film thereon, wherein the hydrophobic and hydrophilic segments together provide reversible hydrophobic-hydrophilic switching in response to water, such that the film surface switches from a relatively hydrophobic state in dry conditions to a relatively hydrophilic state in response to the presence of water in contact with the film surface.
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