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公开(公告)号：ES2438531T3
公开(公告)日：2014-01-17
申请号：ES05756812
申请日：2005-06-06
Applicant: BASF SE
Inventor： ELDER STEWART TODD , ANDRIANOV CHRISTINA LIGIA , MISTRY KISHOR KUMAR , PRESTON JANINE ANDREA , BAXTER MARK CHRISTOPHER
IPC: A61K8/11 , A61K8/02 , A61K8/04 , A61K8/81 , A61Q1/02 , A61Q1/06 , A61Q1/12 , A61Q17/04 , A61Q19/00
Abstract: Micropartículas que contienen una cantidad de colorante eficaz de al menos 1 colorante, en las que dichocolorante está atrapado en un polímero matriz que se ha formado a partir una mezcla de monómeros quecomprende un primer monómero que es un monómero iónico etilénicamente insaturado y un segundo monómeroque es un monómero hidrófobo etilénicamente insaturado que es capaz de formar un homopolímero de temperaturade transición vítrea superior a los 50 ºC, en las que las partículas secundarias están distribuidas a través de lamatriz, cuyas partículas secundarias comprenden un polímero hidrófobo que se ha formado a partir de monómerohidrófobo etilénicamente insaturado que es capaz de formar un homopolímero que tiene una temperatura detransición vítrea superior a los 50 ºC y opcionalmente otros monómeros, cuyo polímero hidrófobo es diferente al delpolímero de la matriz.
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Patent Agency Ranking
公开(公告)号：AT455151T
公开(公告)日：2010-01-15
申请号：AT05748168
申请日：2005-06-02
Applicant: BASF SE
Inventor： ELDER STEWART , ANDRIANOV CHRISTINA , MISTRY KISHOR , PRESTON JANINE ANDREA , BAXTER MARK CHRISTOPHER
Abstract: Polymeric particles comprising a polymeric matrix that has been formed from a blend of monomers comprising a first monomer which is an ethylenically unsaturated ionic monomer and a second monomer which is an ethylenically unsaturated hydrophobic monomer which is capable of forming a homopolymer of glass transition temperature in excess of 50° C., wherein secondary particles are distributed throughout the matrix, in which the secondary particles comprise a hydrophobic polymer that has been formed from an ethylenically unsaturated hydrophobic monomer which is capable of forming a homopolymer of glass transition temperature in excess of 50° C. and optionally other monomers, which hydrophobic polymer is different from the polymeric matrix. Also claimed is a process for preparing particles. The particles have improved shatter resistance. Preferably the polymeric particles comprise an active ingredient, especially a colorant. Such particles combine improved shatter resistance with the ability to retain the active ingredient. The particles of the invention can be used in a variety of industrial applications, for instance in the manufacture of inks, paper and cosmetics.
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公开(公告)号：CA2722681A1
公开(公告)日：2009-11-12
申请号：CA2722681
申请日：2009-04-29
Applicant: BASF SE
Inventor： MISTRY KISHOR KUMAR , BAXTER MARK CHRISTOPHER
Abstract: The invention relates to a process of preparing polymer particles which comprise an effective amount of at least one colourant, a polymer matrix and secondary particles distributed within the polymer matrix. The process comprises the following steps: A) Preparation of an emulsion of a polymer formed from a monomer blend in an aqueous phase and Formation of the secondary particles in the aqueous phase; B) Addition to the aqueous phase of an effective colouring amount of at least one colourant; C) Dispersing or dissolving the colourant in the aqueous phase; and D) Subjecting the emulsion to dehydration in a spray-drying unit.
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公开(公告)号：CA2722681C
公开(公告)日：2013-07-09
申请号：CA2722681
申请日：2009-04-29
Applicant: BASF SE
Inventor： MISTRY KISHOR KUMAR , BAXTER MARK CHRISTOPHER
Abstract: The invention relates to a process of preparing polymer particles which comprise an effective amount of at least one colourant, a polymer matrix and secondary particles distributed within the polymer matrix. The process comprises the following steps: A) Preparation of an emulsion of a polymer formed from a monomer blend in an aqueous phase and Formation of the secondary particles in the aqueous phase; B) Addition to the aqueous phase of an effective colouring amount of at least one colourant; C) Dispersing or dissolving the colourant in the aqueous phase; and D) Subjecting the emulsion to dehydration in a spray-drying unit.
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公开(公告)号：ES2338671T3
公开(公告)日：2010-05-11
申请号：ES05748168
申请日：2005-06-02
Applicant: BASF SE
Inventor： ELDER STEWART TODD , ANDRIANOV CHRISTINA LIGIA , MISTRY KISHOR KUMAR , PRESTON JANINE ANDREA , BAXTER MARK CHRISTOPHER
Abstract: Partículas poliméricas que comprenden una matriz polimérica que ha sido formada a partir de una mezcla de monómeros que comprende un primer monómero que es un monómero iónico etilénicamente insaturado y un segundo monómero que es un monómero hidrófobo etilénicamente insaturado que es capaz de formar un homopolímero de temperatura de transición de vidrio por encima de 50ºC, donde las partículas secundarias están distribuidas a través de la matriz, en la cual las partículas secundarias comprenden un polímero hidrófobo que ha sido formado a partir de un monómero hidrófobo etilénicamente insaturado que es capaz de formar un homopolímero con temperatura de transición de vidrio por encima de 50ºC y opcionalmente otros monómeros, polímero hidrófobo que es diferente de la matriz polimérica.
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公开(公告)号：DE602005018915D1
公开(公告)日：2010-03-04
申请号：DE602005018915
申请日：2005-06-02
Applicant: BASF SE
Inventor： ELDER STEWART TODD , ANDRIANOV CHRISTINA LIGIA , MISTRY KISHOR KUMAR , PRESTON JANINE ANDREA , BAXTER MARK CHRISTOPHER
IPC: C08F291/00 , B01J13/00 , C08L33/02 , C08L33/12 , C09B67/00
Abstract: Polymeric particles comprising a polymeric matrix that has been formed from a blend of monomers comprising a first monomer which is an ethylenically unsaturated ionic monomer and a second monomer which is an ethylenically unsaturated hydrophobic monomer which is capable of forming a homopolymer of glass transition temperature in excess of 50° C., wherein secondary particles are distributed throughout the matrix, in which the secondary particles comprise a hydrophobic polymer that has been formed from an ethylenically unsaturated hydrophobic monomer which is capable of forming a homopolymer of glass transition temperature in excess of 50° C. and optionally other monomers, which hydrophobic polymer is different from the polymeric matrix. Also claimed is a process for preparing particles. The particles have improved shatter resistance. Preferably the polymeric particles comprise an active ingredient, especially a colorant. Such particles combine improved shatter resistance with the ability to retain the active ingredient. The particles of the invention can be used in a variety of industrial applications, for instance in the manufacture of inks, paper and cosmetics.
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