发明名称 POLYMER ENCAPSULATED PIGMENTS
摘要 The present invention is drawn to an encapsulated pigment. The pigment can be encapsulated by both a first polymer layer and a second polymer layer, with the second polymer layer encapsulating the first polymer layer and/or the pigment. The first polymer layer can have less than 2 wt % polymerized acid monomer. The second polymer layer is more hydrophilic than the first polymer layer, and is present at a weight ratio of first polymer layer to second polymer layer of greater than about 1.5:1. Methods of forming an encapsulated pigment are also presented.
申请公布号 EP2212387(A4) 申请公布日期 2013.04.24
申请号 EP20070862093 申请日期 2007.11.15
申请人 HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. 发明人 LIU, HUI;CAGLE, PHILLIP, C.;INGLE, DAVID, MICHAEL
分类号 C09C3/10;C09C3/00 主分类号 C09C3/10
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