D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 17/62 (2006.01) D21H 17/15 (2006.01) D21H 17/17 (2006.01) D21H 17/67 (2006.01) D21H 21/16 (2006.01)
Patent
CA 2154046
The invention relates to a method of sizing paper and similar cellulose fiber based products containing precipitated calcium carbonate as a filler. According to the methed, an aqueous suspension of pulp is dewatered and dried in the presence of an aqueous dispersion of a rosin-based sizing agent, which comprises a rosin component and a rosin ester component, and an aqueous dispersion of a cellulose-reactive sizing agent. The invention also relates to an aqueous dispersion of sizing agents which comprises a rosin-based sizing agent, which contains a rosin component and a rosin ester component, and a cellulose-reactive sizing agent.
Colasurdo Anthony R.
Hiskens Ian R.
Morgan Nicholas S.
Smith Karen J.
Eka Nobel Ab
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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