发明名称 |
CATIONICALLY MODIFIED WHITE PIGMENTS, THEIR PRODUCTION AND USE |
摘要 |
Cationically modified white pigments (W) in particulate form, essentially consisting of a particulate inorganic white pigment (M) of a particle size in the range of 0,1 to 40 mu m and an applied water soluble, cationic, crosslinked polymer (PA) containing quaternary ammonium groups in salt form, obtainable by reaction of epichlorohydrin or of epichlorohydrin derivatives or precursors with amines, under conditions leading to at least partial crosslinking, optionally in combination with an anionic optical brightener (B) and where the molar ratio of (B) to (PA) is such that the number of cationic charges of the total polymer (PA) is higher than the number of anionic charges of the total anionic optical brightener (B), are surprisingly useful as cationic white pigments in various fields of technique, especially in papermaking.
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申请公布号 |
WO0146323(A1) |
申请公布日期 |
2001.06.28 |
申请号 |
WO2000IB01904 |
申请日期 |
2000.12.19 |
申请人 |
CLARIANT FINANCE (BVI) LIMITED;CLARIANT INTERNATIONAL LTD;FARRAR, JOHN, MARTIN;JACKSON, ANDREW, CLIVE;TINDAL, ALEC, STEWART |
发明人 |
FARRAR, JOHN, MARTIN;JACKSON, ANDREW, CLIVE;TINDAL, ALEC, STEWART |
分类号 |
C09C1/00;C09C1/02;C09C1/42;C09C3/10;C09D17/00;D21H17/69;D21H19/42;D21H21/30;(IPC1-7):C09C3/10;D21H21/14 |
主分类号 |
C09C1/00 |
代理机构 |
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