发明名称 Microcapsules having a wall of polyisocyanate/quanidine reaction products
摘要 <p>Microcapsules with walls comprising or contg. reaction prods. (A) of guanidine cpds. (B) and polyisocyanates (C). Also claimed are (i) the prepn. of the microcapsules, and (ii) carbon-free carbon paper contg. microencapsulated dye precursors in which the microcapsule walls comprise (A).</p>
申请公布号 EP0727251(A3) 申请公布日期 1997.01.22
申请号 EP19960100155 申请日期 1996.01.08
申请人 BAYER AG 发明人 NEHEN, ULRICH, DR.;WEISSER, JUERGEN, DR.
分类号 A01N25/28;B01J13/16;B41M5/165;C08G18/08;C08G18/30;C08G18/38;(IPC1-7):B01J13/16 主分类号 A01N25/28
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