公开(公告)号：AT448251T

公开(公告)日：2009-11-15

申请号：AT05750713

申请日：2005-06-02

Applicant: BASF SE

Inventor： CHAMP SIMON ,  BEHRENS SVEN HOLGER ,  GOEDEL WERNER A ,  RANE MAHENDRA ,  NGAI TO ,  NORD SIMON

IPC: C08F2/32

Abstract: The invention relates to a method for the marking of materials with coded microparticies, wherein coded microparticles which are obtainable by (i) polymerization of at least one water-soluble monoethylenically unsaturated monomer in the presence of at least one ethylenically unsaturated monomer having at least two double bonds in the molecule by inverse water-in-oil suspension polymerization, doped nanoparticles being used as the suspending medium, (ii) emulsion polymerization of water-insoluble monoethylenically unsaturated monomers with from 0 to 10% by weight, based on the monomer mixture, of at least one ethylenically unsaturated monomer having at least two double bonds in the molecule, doped nanopartices being used as an emulsifier for stabilizing the disperse phase, (iii) polymerization of at least one ethylenically unsaturated monomer together with a copolymerizable dye which has an ethylenically unsaturated double bond, and, if appropriate, agglomeration of these partices or (iv) agglomeration of at least two different groups of microparticles which differ in their absorption, emission and/or scattering of electromagnetic radiation to give aggregates having a mean particle diameter of from 300 mum to 500 mum are used, the use of the coded microparticles for the marking of materials and the materials marked with the microparticles.

公开(公告)号：DE502005008485D1

公开(公告)日：2009-12-24

申请号：DE502005008485

申请日：2005-06-02

Applicant: BASF SE

Inventor： CHAMP SIMON ,  BEHRENS SVEN HOLGER ,  GOEDEL WERNER A ,  RANE MAHENDRA ,  NGAI TO ,  NORD SIMON

IPC: C08F2/32

Abstract: The invention relates to a method for the marking of materials with coded microparticies, wherein coded microparticles which are obtainable by (i) polymerization of at least one water-soluble monoethylenically unsaturated monomer in the presence of at least one ethylenically unsaturated monomer having at least two double bonds in the molecule by inverse water-in-oil suspension polymerization, doped nanoparticles being used as the suspending medium, (ii) emulsion polymerization of water-insoluble monoethylenically unsaturated monomers with from 0 to 10% by weight, based on the monomer mixture, of at least one ethylenically unsaturated monomer having at least two double bonds in the molecule, doped nanopartices being used as an emulsifier for stabilizing the disperse phase, (iii) polymerization of at least one ethylenically unsaturated monomer together with a copolymerizable dye which has an ethylenically unsaturated double bond, and, if appropriate, agglomeration of these partices or (iv) agglomeration of at least two different groups of microparticles which differ in their absorption, emission and/or scattering of electromagnetic radiation to give aggregates having a mean particle diameter of from 300 mum to 500 mum are used, the use of the coded microparticles for the marking of materials and the materials marked with the microparticles.

公开(公告)号：ES2335115T3

公开(公告)日：2010-03-22

申请号：ES05750713

申请日：2005-06-02

Applicant: BASF SE

Inventor： CHAMP SIMON ,  BEHRENS SVEN HOLGER ,  GOEDEL WERNER A ,  RANE MAHENDRA ,  NGAI TO ,  NORD SIMON

IPC: C08F2/32

Abstract: Procedimiento para la marcación de materiales con micropartículas codificadas, caracterizado porque se emplean micropartículas codificadas, que se han obtenido a través de: (i) polimerización de al menos un monómero soluble en agua insaturado monoetilénicamente en presencia de al menos un monómero insaturado etilénicamente con al menos dos enlaces dobles en la molécula a través de polimerización de suspensión inversa de agua en aceite, en la que como agentes de suspensión se emplean nanopartículas dotadas, (ii) polimerización de la emulsión de monómeros insolubles en agua insaturados monoetilénicamente con 0 a 10% en peso, con relación a la mezcla de monómeros, de al menos un monómero insaturado etilénicamente con al menos dos enlaces dobles en la molécula, en el que como emulsionante para la estabilización de la fase dispersa se emplean nanopartículas dotadas, (iii) polimerización de al menos un monómero insaturado etilénicamente junto con una sustancia colorante copolimerizable, que presenta un enlace doble insaturado etilénicamente y, dado el caso, aglomeración de estas partículas.