发明名称 |
Paper coating composition with improved optical brightener carriers |
摘要 |
A paper coating composition has therein an optical brightening agent (OBA) and a water-soluble non-ionic polysaccharide derivative, exhibiting a solution viscosity in water of less than 1500 cps when dissolved at 5% polymer concentration, wherein the paper coating provides improved optical brightness as compared to the same formulation without said non-ionic, polysaccharide derivative. A paper coated with this composition has an optical brightness value of greater than 70.
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申请公布号 |
US6030443(A) |
申请公布日期 |
2000.02.29 |
申请号 |
US19990301983 |
申请日期 |
1999.04.29 |
申请人 |
HERCULES INCORPORATED |
发明人 |
BOCK, ERIC F.;BURDICK, CHARLES L.;WALSH, L. DRAKE |
分类号 |
D21H21/30;D21H19/00;D21H19/34;D21H19/44;D21H19/52;D21H19/54;D21H21/32;D21H23/22;(IPC1-7):C09D101/28;C09D105/00;D21H17/24;D21H17/26;D21H17/32 |
主分类号 |
D21H21/30 |
代理机构 |
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地址 |
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