Starch-based filler and coating pigment composition for fibre webs and method for the manufacture thereof
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United States of America Patent
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Dec 3, 2013
Grant Date -
Oct 15, 2009
app pub date -
Aug 17, 2006
filing date -
Aug 17, 2005
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Abstract
A material which is suitable as filler or coating pigment for a fibrous web and a method for manufacturing thereof. According to the method, a feed comprising organic polymer material is cooled to at least approximately −50° C., after which it is refined in a jet refiner to a desired particle size. The present invention generates uniform pigment particles which comprise, for instance, starch esters, and which particles have a porous surface structure, in which case they are suitable for instance as coating pigments and fillers for offset and ink-jet papers.
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