BR112015000778A2 - métodos para a preparação de partículas de poliureia nanométricas ou uma dispersão de ditas partículas de poliureia, para formar uma espuma de poliuretano flexível e para formar elastômeros de poliuretano, e, uso das partículas de poliureia nanométricas e/ou uma dispersão de partículas de poliureia - Google Patents

métodos para a preparação de partículas de poliureia nanométricas ou uma dispersão de ditas partículas de poliureia, para formar uma espuma de poliuretano flexível e para formar elastômeros de poliuretano, e, uso das partículas de poliureia nanométricas e/ou uma dispersão de partículas de poliureia

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Publication number
BR112015000778A2
BR112015000778A2 BR112015000778A BR112015000778A BR112015000778A2 BR 112015000778 A2 BR112015000778 A2 BR 112015000778A2 BR 112015000778 A BR112015000778 A BR 112015000778A BR 112015000778 A BR112015000778 A BR 112015000778A BR 112015000778 A2 BR112015000778 A2 BR 112015000778A2
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BR
Brazil
Prior art keywords
polyurea particles
nanometric
particles
polyurea
dispersing
Prior art date
Application number
BR112015000778A
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English (en)
Other versions
BR112015000778B1 (pt
Inventor
Ian Lindsay Christopher
Andre Woutters Steve
Original Assignee
Huntsman Int Llc
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Publication date
Application filed by Huntsman Int Llc filed Critical Huntsman Int Llc
Publication of BR112015000778A2 publication Critical patent/BR112015000778A2/pt
Publication of BR112015000778B1 publication Critical patent/BR112015000778B1/pt

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Abstract

1 / 1 resumo “mã‰todos para a preparaã‡ãƒo de partãculas de poliureia nanomã‰tricas ou uma dispersãƒo de ditas partãculas de poliureia, para formar uma espuma de poliuretano flexãvel e para formar elastã”meros de poliuretano, e, uso das partãculas de poliureia nanomã‰tricas e/ou uma dispersãƒo de partãculas de poliureia” partã­culas de poliureia nanomã©tricas ou uma dispersã£o de partã­culas de poliureia adequados para melhorar as propriedades mecã¢nicas de um material de poliuretano, ditas partã­culas tendo dimensãµes com diã¢metro equivalente na faixa de nanã´metros de 50 nm atã© 700 nm, a distribuiã§ã£o de tamanho de partã­culas em diã¢metro equivalente, uma quantidade de ligaã§ãµes de uretano calculadas com base na quantidade total de urã©ia + ligaã§ãµes de uretano em ditas partã­culas de < 1%, e uma temperatura de transiã§ã£o vã­trea (tg) de > l00â°c, de preferãªncia tg > l20â°c, mais preferivelmente > 150â°c medida em um segundo ciclo de aquecimento apã³s aquecimento a > 220â°c a 20â°c por minuto utilizando calorimetria de varredura diferencial.
BR112015000778-3A 2012-07-17 2013-06-28 Métodos para a prepara«ão de partõculas de poliureia nanomtricas ou uma dispersão de ditas partõculas de poliureia, para formar uma espuma de poliuretano flexõvel e para formar elastmeros de poliuretano, e, uso das partõculas de poliureia nanomtricas e/ou uma dispersão de partículas de poliureia BR112015000778B1 (pt)

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EP12176739.6A EP2687552A1 (en) 2012-07-17 2012-07-17 Use of polyurea nanoparticles as performance modifiers in polyurethane materials
PCT/EP2013/063664 WO2014012769A1 (en) 2012-07-17 2013-06-28 Use of polyurea nanoparticles as performance modifiers in polyurethane materials

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CA2876607A1 (en) 2014-01-23
BR112015000778B1 (pt) 2020-12-22
EP2687552A1 (en) 2014-01-22
IN2014DN10443A (pt) 2015-08-21
US9926424B2 (en) 2018-03-27
CN104640893A (zh) 2015-05-20
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