US 11,912,965 B2
Solid enzymatic detergent compositions and methods of use and manufacture
Erik C. Olson, Saint Paul, MN (US); David Riehm, Saint Paul, MN (US); Carter M. Silvernail, Saint Paul, MN (US); Olivia N. L. Finster, Saint Paul, MN (US); Michael S. Rischmiller, Saint Paul, MN (US); and Timothy Meier, Saint Paul, MN (US)
Assigned to ECOLAB USA INC., Saint Paul, MN (US)
Filed by ECOLAB USA INC., Saint Paul, MN (US)
Filed on Apr. 8, 2022, as Appl. No. 17/658,551.
Application 17/658,551 is a continuation of application No. 16/297,049, filed on Mar. 8, 2019, granted, now 11,377,626.
Claims priority of provisional application 62/807,070, filed on Feb. 18, 2019.
Claims priority of provisional application 62/640,324, filed on Mar. 8, 2018.
Prior Publication US 2022/0235295 A1, Jul. 28, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C11D 3/20 (2006.01); C11D 3/30 (2006.01); C11D 1/72 (2006.01); C11D 17/00 (2006.01); C11D 3/386 (2006.01); C11D 3/10 (2006.01); C11D 1/722 (2006.01); A61L 2/23 (2006.01); C11D 3/48 (2006.01); C11D 3/33 (2006.01); C11D 1/88 (2006.01); C11D 1/66 (2006.01); C11D 1/94 (2006.01)
CPC C11D 3/38609 (2013.01) [A61L 2/23 (2013.01); C11D 1/66 (2013.01); C11D 1/722 (2013.01); C11D 1/88 (2013.01); C11D 1/94 (2013.01); C11D 3/10 (2013.01); C11D 3/2082 (2013.01); C11D 3/30 (2013.01); C11D 3/33 (2013.01); C11D 3/386 (2013.01); C11D 3/38627 (2013.01); C11D 3/38645 (2013.01); C11D 3/48 (2013.01); C11D 17/00 (2013.01); A61L 2202/24 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A solid detergent composition comprising:
a solidification matrix comprising an alkali metal carbonate and an acid, wherein the acid is a polycarboxylic acid having between 2 and 4 carboxyl groups and has aqueous solubility between 0.1 and 1500 g/L at 20° C., wherein the alkali metal carbonate is in an amount between about 15 wt. % and about 75 wt. % of the composition;
an enzyme; and
a surfactant, wherein the surfactant is a nonionic surfactant, amphoteric surfactant, or a mixture thereof;
wherein the composition is substantially free of added water and fatty acids; and
wherein upon dilution the composition provides a pH of between about 7 and about 9; wherein the solid is a cast solid, extruded solid, molded solid, a powder, or pressed solid.