公开(公告)号：CA2906562C

公开(公告)日：2021-04-20

申请号：CA2906562

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.

公开(公告)号：CA2834711C

公开(公告)日：2021-01-12

申请号：CA2834711

申请日：2012-05-04

Applicant: BASF SE

Inventor： NEFF RAYMOND ,  GERSHANOVICH ALEXANDER ,  MENTE DONALD C ,  KUMAR RAJESH

IPC: C05G3/20 ,  C09K3/22

Abstract: A dust suppressing aggregate includes a core particle and a dust suppressing agent. The dust suppressing agent comprises polycarbodiimide and is disposed about the core particle for suppressing dusting of the core particle. A method of forming the dust suppressing aggregate includes the steps of reacting isocyanates in the presence of a catalyst to form the polycarbodiimide and encapsulating the core particle with the polycarbodiimide to form the dust suppressing agent. A system for producing the dust suppressing aggregate includes the core particle, the isocyanates, and the catalyst.

公开(公告)号：CA2834551C

公开(公告)日：2020-07-07

申请号：CA2834551

申请日：2012-05-04

Applicant: BASF SE

Inventor： NEFF RAYMOND ,  GERSHANOVICH ALEXANDER ,  MENTE DONALD C ,  KUMAR RAJESH

IPC: C05G5/35 ,  B01J13/02 ,  C05G3/40

Abstract: An encapsulated particle including a core particle, a base layer, and an outer layer is provided. The base layer is disposed about the core particle and comprises polycarbodiimide. The outer layer is disposed about the base layer and comprises wax. A method of forming the encapsulated particle including the steps of reacting an isocyanate in the presence of a catalyst to form the polycarbodiimide, encapsulating the core particle with the polycarbodiimide to form the base layer, and encapsulating the base layer with the wax to form the outer layer is also provided.

公开(公告)号：PL3253834T3

公开(公告)日：2019-08-30

申请号：PL16708499

申请日：2016-02-01

Applicant: BASF SE

Inventor： KUMAR RAJESH ,  WU HAI SHENG ,  LEBEDINSKI NIKOLAY ,  GRANDHEE SUNITHA

IPC: C09D175/00

公开(公告)号：AU2016215599B2

公开(公告)日：2019-07-11

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.

公开(公告)号：CA2834830C

公开(公告)日：2018-06-19

申请号：CA2834830

申请日：2012-04-26

Applicant: BASF SE

Inventor： TANGUAY CHRISTOPHER ,  KUMAR RAJESH

IPC: C09K8/70 ,  C02F1/00 ,  C09K8/80

Abstract: A proppant comprises a particle and a polymeric coating disposed about the particle. The polymeric coating comprises the reaction product of a novolac polyol, an isocyanate, and an azole. The novolac polyol has a number average molecular weight of from about 200 to about 1000 g/mol. A method of forming the proppant comprises the steps of providing the particle, providing the novolac polyol, providing the isocyanate, and providing the azole. The method also includes the steps of combining the novolac polyol, the isocyanate, and the azole to react and form the polymeric coating and coating the particle with the polymeric coating to form the proppant.

公开(公告)号：CA2687898C

公开(公告)日：2018-01-02

申请号：CA2687898

申请日：2009-12-04

Applicant: BASF SE

Inventor： SAVINO THOMAS G ,  LEBEDINSKI NIKOLAY ,  KUMAR RAJESH ,  PEELER CALVIN T

IPC: C08G18/12 ,  C08G18/72

Abstract: A prepolymer system has a monomeric isocyanate content of no greater than about 10% by weight based on 100 parts by weight of the prepolymer system. The prepolymer system comprises a diluent component and a prepolymer component different than and separate from the diluent component. The diluent component has an excess of isocyanate (NCO) functional groups, and comprises the reaction product of a monohydric isocyanate-reactive component and an excess of a first isocyanate component. The first isocyanate component comprises monomeric isocyanates reactive with the monohydric isocyanate-reactive component. The prepolymer component also has an excess of NCO functional groups, and comprises the reaction product of a polyol component and an excess of a second isocyanate component. The prepolymer system can be used to prepare foams via reaction with water. The foams have low density and have excellent adhesion and sound dampening properties for use in cavities of automobile bodies.

公开(公告)号：CA2994250A1

公开(公告)日：2017-02-09

申请号：CA2994250

申请日：2016-07-29

Applicant: BASF SE

Inventor： KUMAR RAJESH ,  GOLDMAN VINCENT ,  GRANDHEE SUNITHA

IPC: C09D5/08 ,  C09D7/00 ,  C09D175/00

Abstract: This disclosure provides a pigmented primer composition for forming an n-acyl urea coating on a substrate. The pigmented primer composition includes a polycarbodiimide-polyurethane hybrid. The pigmented primer composition also includes an acid functional polymer and an organic solvent, and includes less than or equal to 10 weight percent of water based on a total weight of the pigmented primer composition. The pigmented primer composition also includes a pigment, an inorganic filler, and less than about 100 parts by weight of toluene diisocyanate per one million parts by weight of the pigmented primer composition. The n-acyl urea coating exhibits corrosion resistance of 2 to 10 as determined using ASTM B117 and ASTM D-1654-08 on a substrate that is unpolished cold rolled steel, aluminum, or galvanized steel.

公开(公告)号：CA2975513A1

公开(公告)日：2016-08-11

申请号：CA2975513

申请日：2016-02-01

Applicant: BASF SE

Inventor： KUMAR RAJESH ,  WU HAI SHENG ,  LEBEDINSKI NIKOLAY ,  GRANDHEE SUNITHA

IPC: C09D175/12 ,  C09D7/12

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.

公开(公告)号：MX2015012964A

公开(公告)日：2015-12-01

申请号：MX2015012964

申请日：2014-03-13

Applicant: BASF SE

Inventor： KUMAR RAJESH ,  TANGUAY CHRISTOPHER M ,  ROH YEONSUK

IPC: C09K8/80 ,  C09K8/62 ,  E21B43/267

Abstract: Un agente de soporte incluye una partícula presente en una cantidad de 90 a 99.5 por ciento en peso y un revestimiento polimérico dispuesto alrededor de la partícula y presente en una cantidad de 0.5 a 10 por ciento en peso, basándose en el peso total del agente de soporte. El revestimiento polimérico se forma a partir de una composición curable que comprende un isocianato, un acrilato, y un poliol. Un método para formar el agente de soporte incluye las etapas de combinar el isocianato, el acrilato, y el poliol para formar la composición curable, revestir la partícula con la composición curable, y curar la composición curable para formar el revestimiento polimérico.