Process for obtaining fibers integral with calcium carbonate particles
First Claim
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1. Process for obtaining fibers integral with calcium carbonate particles, which comprises:
- preparing a first composition comprising calcium bicarbonate;
preparing a second composition comprising calcium hydroxide; and
mixing the first and second compositions in the presence of said fibers thereby precipitating calcium carbonate particles in contact with at least some of said fibers.
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Abstract
The invention relates to a process for obtaining fibers integral with calcium carbonate particles, in which the fibers to be treated are contacted with carbon dioxide generator means and at least one composition comprising Ca++ ions capable of reacting with the carbon dioxide so as to give “in fine” a precipitation of calcium carbonate “in situ” on the fibers. Preferably, the carbon dioxide generator used is calcium bicarbonate.
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Citations
20 Claims
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1. Process for obtaining fibers integral with calcium carbonate particles, which comprises:
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preparing a first composition comprising calcium bicarbonate;
preparing a second composition comprising calcium hydroxide; and
mixing the first and second compositions in the presence of said fibers thereby precipitating calcium carbonate particles in contact with at least some of said fibers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification