US 11,773,348 B2
Solidification process using low levels of coupler/hydrotrope
Janel Marie Kieffer, Saint Paul, MN (US); Katherine Molinaro, Saint Paul, MN (US); Gary Becker, Saint Paul, MN (US); Tobias Foster, Cologne (DE); and Karina Labusga, Saint Paul (DE)
Assigned to Ecolab USA Inc., Saint Paul, MN (US)
Filed by ECOLAB USA INC., Saint Paul, MN (US)
Filed on Jun. 8, 2021, as Appl. No. 17/303,814.
Application 17/303,814 is a continuation of application No. 16/946,959, filed on Jul. 13, 2020, granted, now 11,060,048.
Application 16/946,959 is a continuation of application No. 16/243,896, filed on Jan. 9, 2019, granted, now 10,745,650, issued on Aug. 18, 2020.
Application 16/243,896 is a continuation of application No. 15/131,343, filed on Apr. 18, 2016, granted, now 10,221,376, issued on Mar. 5, 2019.
Prior Publication US 2021/0292681 A1, Sep. 23, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. C11D 3/32 (2006.01); C11D 3/34 (2006.01); C11D 3/04 (2006.01); C11D 1/825 (2006.01); C11D 17/00 (2006.01)
CPC C11D 3/323 (2013.01) [C11D 1/8255 (2013.01); C11D 3/046 (2013.01); C11D 3/3409 (2013.01); C11D 3/3418 (2013.01); C11D 17/0047 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A solid rinse aid composition comprising:
(a) two or more solid nonionic surfactants,
(b) an association disruption agent comprising an alcohol alkoxylate,
(c) no more than 20 wt % of a coupler/hydrotrope;
(d) a hardening agent; and
(e) water;
wherein the composition is free of polyoxypropylene-polyoxyethylene reverse block copolymers.