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United States Patent (10) Patent No.: US 9,598,660 B2 Olson Et Al

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United States Patent (10) Patent No.: US 9,598,660 B2 Olson Et Al USOO9598660B2 (12) United States Patent (10) Patent No.: US 9,598,660 B2 Olson et al. (45) Date of Patent: *Mar. 21, 2017 (54) DETERGENT COMPOSITION INCLUDING A 4,888,123. A 12/1989 Price et al. SACCHARDE OR SUGAR ALCOHOL 5,114,611 A 5, 1992 Van Kralingen et al. 5,194,172 A * 3/1993 Taneri .................... C11D 9,262 510,139 (71) Applicant: Ecolab USA Inc., St. Paul, MN (US) 5,575,840 A 1 1/1996 Dewacker (72) Inventors: Erik C. Olson, Savage, MN (US); 5,904,735Ai. A 3365, 1999 SEI.Guti tal. Carter M. Silvernail, Burnsville, MN 6,017,864 A 1/2000 Brittain et al. (US) 6,365,568 B1 4/2002 Olson et al. 6,376.440 B1 4/2002 Hennen et al. (73) Assignee: Ecolab USA Inc., St. Paul, MN (US) 6,613,733 B1*ck 9/2003 Barnabas ............... clip: 7,645,731 B1 1, 2010 S1 il et al. (*) Notice: Subject to any disclaimer, the term of this 8,216,989 B2 7/2012 SE I. patent is extended or adjusted under 35 8,263,540 B2 9/2012 Olson et al. U.S.C. 154(b) by 99 days. 8,822.403 B2 * 9/2014 Olson ...................... C11D 7/04 134,252 This patent is Subject to a terminal dis- 2002/0022584 A1 2/2002 ASSmann et al. claimer. 2002fOO86809 A1 7/2002 Guo et al. 2003/0203828 A1 10, 2003 Bachmann et al. 2004.0005994 A1 1/2004 Eskuchen et al. (21) Appl. No.: 14/340,127 2007/01790.73 A1 8, 2007 Smith et al. 2008. O188390 A1 8, 2008 Schinkel et al. (22) Filed: Jul. 24, 2014 2009 OO82248 A1 3, 2009 Jones 2009, O156454 A1 6/2009 Schmiedel et al. (65) Prior Publication Data 2009,0186795 A1 7, 2009 Feenstra et al. 2010/O197545 A1 8, 2010 Silvernail et al. US 2014/0336099 A1 Nov. 13, 2014 2010/0298.192 A1 11/2010 Feenstra et al. O O 2011 OO53821 A1 3/2011 Silvernail et al. Related U.S. Application Data 2011 0071065 A1 3f2011 Silvernail et al. 2011/018O112 A1 7, 2011 Silvernail et al. (63) y applian S.G. 8,488, filed on 2012/0053104 A1 3/2012 Olson et al. (60) Provisional application No. 61/434,668, filed on Jan. FOREIGN PATENT DOCUMENTS 20, 2011. EP 1953.217 A1 8, 2008 (51) Int. Cl. EP 1953.217 B1 8/2009 CLID 3/22 (2006.01) WO 9847994 10, 1998 CLID 3/08 (2006.01) CLID 3/10 (2006.01) OTHER PUBLICATIONS CLID 3/37 (2006.01) & 8 CLID (7/06 (2006.01) Peschard, A. et al., “Effect of polysaccharides on the hydration of CLID (7/00 (2006.01) cement paste at early stages' 44 pages, Jan. 30, 2007. BOSB 9/20 (2006.01) k . CLID 704 (2006.01) cited by examiner t 2. 3:08: Primary Examiner — Lorna Douyon CLID 7/26 (2006.015 (74) Attorney, Agent, or Firm — McKee, Voorhees & (52) U.S. Cl. Sease, PLC CPC (2013.01),................ CIIDCIID 3206s 3/221 (2013.01);(2013.01). CIDCIID 3/08704 (57) ABSTRACT (2013.01); CIID 7/14 (2013.01); CIID 7/262 Solid detergent compositions according to the present inven (2013.01); CIID 17/0056 (2013.01) tion include at least one alkali metal silicate, at least one (58) Field of Classification Search polycarboxylic acid, at least one saccharide or Sugar alcohol None and water. Suitable Saccharides include Sucrose, fructose, See application file for complete search history. inulin, maltose and lactulose, and may be present in the composition in a concentration of at least 0.5 wt %. Com (56) References Cited positions according to certain embodiments form stable U.S. PATENT DOCUMENTS Solid block detergent compositions that do not Swell signifi M cantly even when subjected to elevated temperatures. 4,289,643 A 9, 1981 Joubert 4,536,319 A 8/1985 Payne 23 Claims, 6 Drawing Sheets U.S. Patent Mar. 21, 2017 Sheet 1 of 6 US 9,598,660 B2 U.S. Patent US 9,598,660 B2 },~……………*,·)|+9,96 |96 U.S. Patent Mar. 21, 2017 Sheet S of 6 US 9,598,660 B2 G(61-) U.S. Patent Mar. 21, 2017 Sheet 6 of 6 US 9,598,660 B2 9(61-) |$$6 US 9,598,660 B2 1. 2 DETERGENT COMPOSITION INCLUDING A FIG. 3 is a line graph illustrating percent Swelling of SACCHARDE OR SUGAR ALCOHOL embodiments of the invention set forth in the Examples. FIG. 4 is a line graph illustrating capsule growth of CROSS-REFERENCE TO RELATED embodiments of the invention set forth in the Examples. APPLICATIONS FIG. 5 is a line graph illustrating percent swelling of embodiments of the invention set forth in the Examples. This is a Continuation Application of U.S. Ser. No. FIG. 6 is a line graph illustrating capsule growth of 13/268,488 filed Oct. 7, 2011, now issued U.S. Pat. No. embodiments of the invention set forth in the Examples. 8.22.403 on Sep. 2, 2014, which application claims the benefit of 35 U.S.C. S 119(e) to U.S. Provisional Patent 10 DETAILED DESCRIPTION Application No. 61/434,668, filed on Jan. 20, 2011, entitled “Detergent Composition including a Saccharide, all of Embodiments of the present invention provide solid, which are incorporated herein by reference in their entirety. dimensionally stable, compositions including at least one alkali metal silicate cleaning agent, water and at least one BACKGROUND 15 saccharide or Sugar alcohol. Such compositions may be particularly useful in cleaning applications where it is The present invention relates generally to the field of solid detergent compositions. In particular, the present invention desired to use a phosphate-free detergent. Such applications relates to Solid detergent compositions containing saccha include, but are not limited to: machine and manual ware rides and/or Sugar alcohols. washing, presoaks, laundry and textile cleaning and destain The advent of Solid block detergent compositions con ing, carpet cleaning and destaining, vehicle cleaning and taining alkali cleaning agents has revolutionized the manner care applications, Surface cleaning and destaining, kitchen in which detergents are dispensed by commercial and insti and bath cleaning and destaining, floor cleaning and destain tutional entities which routinely use large quantities of ing, cleaning in place operations, general purpose cleaning cleaning solution. The solid block compositions are gener 25 and destaining, industrial or household cleaners, and pest ally formed by combining the alkali cleaning agent with one control agents. or more solidification components in a liquid solution. The The solid detergent composition includes an effective Solidification components interact with the alkali cleaning amount of alkali metal silicate sources to enhance cleaning agent and cause the composition to form a solid block with of the desired substrate and improve soil removal perfor minimal if any energy input. 30 mance of the Solid composition. The composition may One challenge that arises when transporting and Subse include the alkali metal silicate in an amount of between quently using such solid block compositions is that Swelling about 0.1% by weight and 80% by weight, more particularly, can occur particularly when the Solid block composition is between about 10% by weight and about 60% by weight, subjected to higher temperature conditions. The result is that and even more particularly, between about 25% by weight the block composition may break apart, damage the pack 35 and about 60% by weight. aging in which it is stored and/or not fit properly into An effective amount of one or more alkali metal silicate dispensing machines. Various materials have been added to Sources may provide a use composition (i.e., an aqueous solid block compositions to control swelling. However, Solution containing the composition) having a pH of at least increased regulation of detergent compositions has created a about 8. When the use composition has a pH of between need to identify compounds that help control swelling while 40 about 8 and about 10, it can be considered mildly alkali, and also having a low impact on the environment. when the pH is greater than about 12, the use composition can be considered caustic. SUMMARY Examples of suitable alkali metal silicates include lithium, Sodium and potassium silicate or metasilicate, as One embodiment is a solid detergent composition includ 45 well as combinations of the foregoing materials. The alkali ing at least one alkali metal silicate, at least one saccharide metal silicate may be used to form the composition without or Sugar alcohol and water. Suitable Saccharides include modification or may be combined with other raw materials mono-, di- and polysaccharides containing 3 or more sac Such as alkali metal hydroxide to form alkali metal meta charide units. Sucrose, fructose, inulin, lactulose, maltose silicate prior to or in the process of making the solid and combinations thereof, may be particularly Suitable. 50 composition. Commercial sodium silicates are available in Another embodiment is a solid detergent composition both powdered and liquid forms. The powdered forms including from about 0.1 wt % to about 70 wt % of at least include both amorphous and crystalline powders in either one alkali metal silicate, from about 0.5 wt % to about 10 hydrated or anhydrous form. The aqueous liquids are avail wt % of at least one saccharide or Sugar alcohol, and from able with viscosities ranging from 0.5 to 600,000 centipoise about 10 wt % to about 70 wt % water. A further embodi 55 at 20° C. Potassium silicates are sold either as a glass or an ment is a method of forming a solid detergent composition aqueous liquid. The synthetic lithium silicates typically are in which at least one alkali metal silicate, at least one generally sold only as liquids.
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