US 11,932,830 B2
Solid controlled release caustic detergent compositions
Max Gelderman, Saint Paul, MN (US); John Mansergh, Saint Paul, MN (US); Monique Roerdink Lander, Saint Paul, MN (US); and Caitlyn Peltier, Saint Paul, MN (US)
Assigned to ECOLAB USA INC., Saint Paul, MN (US)
Filed by ECOLAB USA INC., Saint Paul, MN (US)
Filed on Dec. 9, 2020, as Appl. No. 17/247,372.
Application 17/247,372 is a division of application No. 15/964,658, filed on Apr. 27, 2018, granted, now 10,889,783.
Claims priority of provisional application 62/585,825, filed on Nov. 14, 2017.
Prior Publication US 2021/0155873 A1, May 27, 2021
Int. Cl. C11D 17/00 (2006.01); C11D 1/66 (2006.01); C11D 3/00 (2006.01); C11D 3/04 (2006.01); C11D 3/22 (2006.01); C11D 7/06 (2006.01); C11D 7/26 (2006.01)
CPC C11D 3/044 (2013.01) [C11D 1/66 (2013.01); C11D 3/0026 (2013.01); C11D 3/222 (2013.01); C11D 7/06 (2013.01); C11D 7/268 (2013.01); C11D 17/0065 (2013.01); C11D 17/0091 (2013.01)] 19 Claims
 
1. A system for cleaning wares in an automatic dishwashing environment comprising:
a solid controlled release composition comprising from about 20 wt-% to about 95 wt-% of a hydroxide alkalinity source, from about 5 wt-% to about 20 wt-% of at least one polysaccharide material comprising carboxymethylcellulose (CMC) and xanthan, wherein the at least one polysaccharide material has having between about a 1 wt-% to about 2 wt-% aqueous solution viscosity at 25° C. of between about 520 cps and about 5000 cps, and a surfactant;
wherein the solid composition is a homogenous 2-in-1 composition providing a detergent and rinse aid in a single solid composition, wherein the solid composition is a multi-use composition lasting at least 12 cycles, and wherein the solid composition is not encapsulated with a delayed release composition; and
wherein the system does not include a dispensing system.
 
12. A system for cleaning wares in an automatic dishwashing environment comprising:
a solid controlled release composition comprising a first phase and a second phase, wherein the first phase is a homogenous solid comprising from about 20 wt-% to about 95 wt-% of a hydroxide alkalinity source, from about 5 wt-% to about 20 wt-% of at least one polysaccharide material comprising carboxymethylcellulose (CMC), wherein the at least one polysaccharide material has between about a 1 wt-% to about 2 wt-% aqueous solution viscosity at 25 ° C. of between about 520 cps and about 5000 cps, and a surfactant, and wherein the second phase is a homogenous solid comprising a hydroxide alkalinity source and an active ingredient cleaning agent;
wherein the solid controlled release composition is a multi-use composition lasting at least 12 cycles and not encapsulated with a delayed release composition; and
wherein the system does not include a dispensing system.