Compositions: coating or plastic – Coating or plastic compositions – O-containing organic compound
Reexamination Certificate
2005-03-22
2005-03-22
Brunsman, David (Department: 1755)
Compositions: coating or plastic
Coating or plastic compositions
O-containing organic compound
C106S162100, C106S287200, C106S287250, C162S158000, C162S175000, C162S181300, C162S181600
Reexamination Certificate
active
06869471
ABSTRACT:
The present invention relates to a process for sizing paper comprising providing an aqueous suspension comprising cellulosic fibres, dewatering said aqueous suspension thereby forming a paper web, said process comprising adding to the cellulosic suspension an aqueous composition comprising aggregates comprising a sizing agent, the composition obtainable by mixing in any order prior to the addition to the aqueous suspension, (i) an aqueous solution comprising at least one coagulation agent, and (ii) an aqueous dispersion comprising a sizing agent, wherein the zeta potential of the composition is less than 20 mV. The invention also refers to an aqueous sizing composition.
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Barla Pavol
Mattsson Rosa
Ödberg Lars
Akzo Nobel N.V.
Brunsman David
White, Redway and Brown
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