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公开(公告)号:PL3664984T3
公开(公告)日:2024-02-26
申请号:PL18749778
申请日:2018-08-01
Applicant: BASF SE
Inventor: KUMAR RAJESH , WUJCIK STEVEN E , LEBEDINSKI NIKOLAY , MILANTONI CHRISTOPHER J
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公开(公告)号:MY180356A
公开(公告)日:2020-11-28
申请号:MYPI2015002364
申请日:2014-03-13
Applicant: BASF SE
Inventor: ROH YEONSUK , KUMAR RAJESH , TANGUAY CHRISTOPHER M
Abstract: A proppant includes a particle present in an amount of from 90 to 99.5 percent by weight and a polymeric coating disposed about the particle and present in an amount of from 0.5 to 10 percent by weight, based on the total weight of the proppant. The polymeric coating is formed from a curable composition comprising an isocyanate, an acrylate, and a polyol. A method of forming the proppant includes the steps of combining the isocyanate, the acrylate, and the polyol to form the curable composition, coating the particle with the curable composition, and curing the curable composition to form the polymeric coating.
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公开(公告)号:NZ712164A
公开(公告)日:2020-11-27
申请号:NZ71216414
申请日:2014-03-13
Applicant: BASF SE
Inventor: ROH YEONSUK , TANGUAY CHRISTOPHER , KUMAR RAJESH
IPC: C09K8/80 , C09K8/62 , E21B43/267
Abstract: A proppant includes a particle present in an amount of from 90 to 99.5 percent by weight and a polymeric coating disposed about the particle and present in an amount of from 0.5 to 10 percent by weight, based on the total weight of the proppant. The polymeric coating is formed from a curable composition comprising an isocyanate, an acrylate, and a polyol. A method of forming the proppant includes the steps of combining the isocyanate, the acrylate, and the polyol to form the curable composition, coating the particle with the curable composition, and curing the curable composition to form the polymeric coating.
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公开(公告)号:ES2729527T3
公开(公告)日:2019-11-04
申请号:ES16708499
申请日:2016-02-01
Applicant: BASF SE
Inventor: KUMAR RAJESH , WU HAI , LEBEDINSKI NIKOLAY , GRANDHEE SUNITHA
IPC: C09D175/00
Abstract: Un sistema con base en solvente para formar un recubrimiento de n-acil urea sobre un sustrato, comprendiendo dicho sistema con base en solvente: A. un hibrido de policarbodiimida-poliuretano que tiene la estructura:**Fórmula** en la que cada n es independientemente un numero de 1 a 20; en la que cada Y es independientemente un grupo alcoxi o polialcoxi que tiene (w) atomos de oxigeno, en la que cada w es independientemente al menos 1; en la que cada z es independientemente un numero de 0 a (w-1); y en la que x, Y, y un total de dichos grupos CnH2n + 1 estan presentes en una proporcion de (4 a 5):(0.5 a 1.5):(2.5 a 4.5), respectivamente, B. un polimero con funcion acida; y C. un solvente organico, en el que dicho sistema con base en solvente comprende menos de o igual a 10 por ciento en peso de agua con base en un peso total de dicho sistema con base en solvente, y en el que dicho sistema con base en solvente incluye menos de 100 partes en peso de diisocianato de tolueno por un millon de partes en peso de dicho sistema con base en solvente.
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公开(公告)号:PL3105275T3
公开(公告)日:2019-07-31
申请号:PL15706627
申请日:2015-02-12
Applicant: BASF SE
Inventor: WILLIAMS-HARRY MICHELE , KUMAR RAJESH
IPC: C08G18/76 , C07C267/00 , C07C271/28 , C08G18/02
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公开(公告)号:AU2016215599A1
公开(公告)日:2017-08-24
申请号:AU2016215599
申请日:2016-02-01
Applicant: BASF SE
Inventor: KUMAR RAJESH , WU HAI SHENG , LEBEDINSKI NIKOLAY , GRANDHEE SUNITHA
IPC: C09D175/00
Abstract: This disclosure provides a solvent-borne system for forming an n-acyl urea coating on a substrate. In one embodiment, the solvent-borne system comprises a polycarbodiimide-polyurethane hybrid. The solvent-borne system also comprises an acid functional polymer and an organic solvent, and comprises less than or equal to 10 weight percent of water based on a total weight of said solvent-borne system. The solvent-borne system also comprises less than about 100 parts by weight of toluene diisocyanate per one million parts by weight of the solvent-borne system.
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公开(公告)号:AU2014235135A1
公开(公告)日:2015-10-08
申请号:AU2014235135
申请日:2014-03-13
Applicant: BASF SE
Inventor: TANGUAY CHRISTOPHER M , ROH YEONSUK , KUMAR RAJESH
IPC: C09K8/80 , C09K8/62 , E21B43/267
Abstract: A proppant includes a particle present in an amount of from 90 to 99.5 percent by weight and a polymeric coating disposed about the particle and present in an amount of from 0.5 to 10 percent by weight, based on the total weight of the proppant. The polymeric coating is formed from a curable composition comprising an isocyanate, an acrylate, and a polyol. A method of forming the proppant includes the steps of combining the isocyanate, the acrylate, and the polyol to form the curable composition, coating the particle with the curable composition, and curing the curable composition to form the polymeric coating.
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公开(公告)号:AU2014249741A1
公开(公告)日:2015-09-17
申请号:AU2014249741
申请日:2014-03-04
Applicant: BASF SE
Inventor: YANG MICHAEL , KUMAR RAJESH
IPC: C07F9/6568
Abstract: A method of producing a phospholene oxide is disclosed. A dihalohydrocarbylphosphine, 2-methyl-l,3-butadiene, and a halogenated hydrocarbon solvent are combined to form an adduct via an addition reaction in a homogenous system wherein the ratio of the 2-methyl- 1,3 -butadiene to the dihalohydrocarbylphosphine is from 1.0 to 2.0 and wherein the solvent is present in an amount of greater than 200 mL per mole of dihalohydrocarbylphosphine. The adduct is combined with alcohol and a carbonate or with a solution of metal hydroxide and water to form the phospholene oxide.
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公开(公告)号:CA2940288A1
公开(公告)日:2015-08-27
申请号:CA2940288
申请日:2015-02-19
Applicant: BASF SE
Inventor: KUMAR RAJESH , LEBEDINSKI NIKOLAY
IPC: C08G18/71 , C08G18/02 , C08G18/28 , C08G18/32 , C08G18/42 , C08G18/48 , C08G18/69 , C08G18/76 , C08L75/16
Abstract: A composition for forming a polyiso-urea includes a capped polycarbodiimide and a polyol. The capped polycarbodiimide comprises the reaction product of a diisocyanate and a monoisocyanate in the presence of an oxygen scavenger and a carbodiimidization catalyst and in the absence of solvent, has 0.25 wt. % or less of free isocyanate groups, and is a liquid at 25°C. A polyiso-urea comprises the reaction product of the capped polycarbodiimide and the polyol.
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公开(公告)号:CA2940285A1
公开(公告)日:2015-08-27
申请号:CA2940285
申请日:2015-02-19
Applicant: BASF SE
Inventor: KUMAR RAJESH , LEBEDINSKI NIKOLAY
Abstract: A process of preparing a post-modified polycarbodiimide, the process includes combining a diisocyanate, a moisture scavenger, a monoisocyanate, and a catalyst in a reaction vessel; and heating the reaction vessel to a temperature and a time sufficient to form a capped polycarbodiimide wherein the capped polycarbodiimide has 0.25 wt% or less of free isocyanate groups; and the combining and heating are conducted in the absence of a solvent.
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