US 11,905,663 B2
Paper enhancing compositions, uses thereof and enhanced paper
David H. Creasey, Leland, NC (US); and Samuel Horace McCall, IV, Leland, NC (US)
Assigned to ITI Technologies, Inc., Leland, NC (US)
Filed by ITI Technologies, Inc., Leland, NC (US)
Filed on Jan. 31, 2022, as Appl. No. 17/588,712.
Application 17/588,712 is a division of application No. 16/896,328, filed on Jun. 9, 2020, abandoned.
Prior Publication US 2022/0154405 A1, May 19, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. D21H 21/36 (2006.01); D21H 21/18 (2006.01); D21H 21/24 (2006.01); D21H 19/02 (2006.01); D21H 17/06 (2006.01); D21H 19/38 (2006.01); D21H 17/67 (2006.01); D21H 23/04 (2006.01)
CPC D21H 21/36 (2013.01) [D21H 17/675 (2013.01); D21H 19/02 (2013.01); D21H 19/385 (2013.01); D21H 21/18 (2013.01); D21H 21/24 (2013.01); D21H 23/04 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A carbonate enhancing composition comprising:
a solubility enhancing aqueous composition comprising an anionic component consisting essentially of sulfate ions, alone or in combination with bisulfate ions, having a concentration from about 8.00 moles per liter to about 13.00 moles per liter of the solubility enhancing aqueous composition volume; a cationic component consisting essentially of ammonium ions having a concentration from about 1.45 moles per liter to about 2.01 moles per liter of the solubility enhancing aqueous composition volume; and hydrogen ions in a concentration from about 17.38 mols per liter to about 21.68 moles per liter of the solubility enhancing aqueous composition volume;
sodium hydroxide solution having a concentration of about 5% to about 7.5% volume/volume of the total aqueous phase volume of the carbonate enhancing composition; and
a sulfate selected from the group consisting of copper sulfate, silver sulfate and combinations thereof having a concentration from about 20 percent to about 26 percent mass/volume of the total aqueous phase volume of the carbonate enhancing composition.