Use of starch dispersions as binder in coating compositions and process for preparing the starch dispersions
- 申请公布号：
- US7285586(B2)
- 申请号：
- US20040979210
- 申请日期：
- 2004.11.03
- 申请公布日期：
- 2007.10.23
- 申请人：
- ECOSYNTHETIX INC.
- 发明人：
- HELBLING ANDRE MARCEL;HILLS MICHAEL ROBERT;STOLLMAIER FRIEDERIKE THERESIA;ANNEN THOMAS MARTIN STEPHAN
- 分类号：
- C08L3/00;C08B30/00;C08L3/02;C09D103/04;C09J199/00;D21H19/54
- 主分类号：
- C08L3/00
- 摘要：
- Coating compositions comprising a pigment and starch dispersion of discrete crosslinked starch particles in an aqueous liquid. The dispersion may be used as coating color for paper. A preferred process of preparing the dispersion of starch particles comprises (a) obtaining a mixture of starch and an aqueous liquid; (b) processing the mixture using shear forces in the presence of a crosslinker in an extruder; and (c) injecting a hydroxylic liquid into the extruder and dispersing the mixture inside the extruder or outside the extruder or both inside and outside the extruder to obtain the dispersion.
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