POLYMERTEILCHEN,申请号AT20050748168T-传众专利搜索

POLYMERTEILCHEN

申请公布号：AT455151(T)

申请号：AT20050748168T

申请日期：2005.06.02

申请公布日期：2010.01.15

申请人：

BASF SE

发明人：ELDER, STEWART;ANDRIANOV, CHRISTINA;MISTRY, KISHOR;PRESTON, JANINE ANDREA;BAXTER, MARK CHRISTOPHER

分类号：C08L25/14;B01J13/00;C08F291/00;C08L33/02;C08L33/12;C09B67/00

主分类号：C08L25/14

摘要：<p>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.</p>