Drain treatment product and method of use

• US 6,197,321 B1
• Filed: 03/10/1994
• Issued: 03/06/2001
• Est. Priority Date: 09/21/1988
• Status: Expired due to Term

• Current Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Original Assignee: Ecolab, Inc.
• Inventors: Wilson, James, Pedersen, Daniel E., Richter, Francis L.
• Primary Examiner(s): Levy, Neil S.
• Application Number:
  US08/209,194
• Time in Patent Office: 2,553 Days
• Field of Search: 424/405, 424/408, 424/409, 424/411, 429/0, 429/4, 422/28, 422/261, 422/264, 422/266, 510/100, 510/195, 510/447, 510/449
• US Class Current: 424/409
• CPC Class Codes: A61L 11/00 Methods specially adapted for refuse disintegrating medical waste B02C19/0075; disposal of medical waste B09B3/00
• CPC Class Codes: A61L 2/18 Liquid substances or solutions comprising solids or dissolved gases
• CPC Class Codes: C09D 5/34 Filling pastes materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12

Abstract

A drain sanitizing article (9) for reducing microbiological activity in drain runoff areas having a housing (10), the housing having an inner wall (16) defining an inner opening (18) in the housing, an outer wall (12), and a bottom wall (14) defining a central cavity (15) in the housing (10), a tear strip (20) for destructibly removing the housing outer wall and a portion of the bottom wall (14), a handle (30) spanning the inner opening (18) of the housing (10) and joined to the inner wall (16) of said housing (10); and a chemical sanitizing agent (40).

Claims

1. An aqueous soluble drain sanitizing article for dispensing a chemical sanitizing agent for sanitizing running and standing drainage, said drain sanitizing article comprising an aqueous soluble sanitizing bar, said bar comprising (a) an effective amount of an antimicrobial sanitizer, and (b) an effective amount of hardener, said sanitizing bar having an interior wall, said interior wall defining an opening in said drain sanitizing article wherein when said drain sanitizing article is placed into a drain, said drain sanitizing article allows for the passage of drainage over the article and through said drain sanitizing article opening into the drain.

2. The article of claim 1 wherein said sanitizing bar additionally comprises an effective amount of a solubility modifier.

3. The article of claim 1 additionally comprising an effective amount of dye wherein said dye indicates the intended environment of use of the chemical sanitizing agent and the continued presence of the chemical sanitizing agent once installed.

4. The article of claim 1 wherein said chemical sanitizing agent is a hardened pressed tablet.

5. The article of claim 1 wherein said antimicrobial sanitizer comprises an n-alkyl dimethyl benzyl ammonium chloride.

6. The article of claim 5 wherein said n-alkyl dimethyl benzyl ammonium chloride is selected from the group consisting of n-tetradecyl n-alkyl dimethyl benzyl ammonium chloride monohydrate, n-alkyl dimethyl benzyl 1-naphthylmethyl ammonium chloride, and mixtures thereof.

7. The article of claim 1 wherein the antimicrobial sanitizer comprises an organic encapsulated chlorine donating agent selected from the group consisting of trichloro(iso)cyanuric acid, sodium dichloro(iso)cyanurate potassium dichloro(iso)cyanurate, sodium dichloro(iso)cyanurate dihydrate, and mixtures thereof, said chorine donating agent being present in the concentration of about 5 wt-% to 80 wt-%.

8. The article of claim 1 wherein said antimicrobial sanitizer comprises an inorganic chlorine source selected from the group consisting of LiOCl, Ca(OCl)₂, and mixtures thereof.

9. The article of claim 1 wherein said antimicrobial sanitizer comprises a phenol source selected from the group consisting of o-phenylphenol, 2,4,5-trichlorophenol, 2,4,6-trichlorophenol, 2-chloro-4-phenylphenol, 2,3,4,6-tetrachlorophenol, pentachlorophenol, 4-chloro-2-phenylphenol, 6-chloro-2-phenylphenol, Na-o-phenylphenol, Na-2,4,5-trichlorophenol, Na-pentachlorophenol, and mixtures thereof, said phenol source being present in a concentration of about 5 wt-% to 80 wt-%.

10. The article of claim 1 wherein said antimicrobial sanitizer comprises an aldehyde selected from a group consisting of formaldehyde, glutaraldehyde, and mixtures thereof, said aldehyde being present in the concentration of about 5 wt-% to 80 wt-%.

11. The article of claim 1 wherein said antimicrobial sanitizer comprises an iodophor selected from the group consisting of iodine-nonionic surfactant complexes, iodine-polyvinyl pyrollidone complexes, iodine-quaternary ammonium chloride complexes, amphoteric-iodine complexes, and mixtures thereof, said iodophor being present at a concentration of about 5 wt-% to 80 wt-%.

12. The article of claim 1 wherein said hardener comprises an alkyl amide selected from the group consisting of lauric diethanolamide, stearic diethanolamide, stearic monoethanolamide, and mixtures thereof, said alkylamides being present at a concentration of from about 20 wt-% to 95 wt-%.

13. The article of claim 1 wherein said hardener comprises a nonionic surfactant selected from the group consisting of nonyl phenol ethoxylates, C_12-14 linear alcohol ethoxylates, ethylene oxide/propylene oxide copolymers, and mixtures thereof, said nonionic surfactants being present at a concentration of from about 20 wt-% to 95 wt-%.

14. The article of claim 13 wherein said hardener additionally comprises a coupling agent, said coupling agent selected from the group consisting of propylene glycol, polyethylene glycol, and mixtures thereof, said coupling agent being present at a concentration of from about 20 wt-% to 95 wt-%.

15. The article of claim 1 wherein said hardener comprises a water soluble starch present at a concentration of from about 20 wt-% to 95 wt-%.

16. The article of claim 1 wherein said hardener comprises urea present at a concentration of from about 20 wt-% to 95 wt-%.

17. The article of claim 5 wherein said n-alkyl group of said n-alkyl dimethyl benzyl ammonium chloride, comprises 60 wt-% C₁₄, 30 wt-% C₁₆, 5 wt-% C₁₂, and 5 wt-% C₁₈.

18. The article of claim 1 wherein said antimicrobial sanitizer comprises a quaternary alkyl dimethyl benzyl ammonium chloride present in a concentration ranging from about 30 wt-% to 60 wt-% and a hardener comprising an alkyl mono ethanolamide present in a concentration ranging from about 30 wt-% to 80 wt-%.

19. An aqueous soluble article for dispensing a chemical sanitizing agent for sanitizing running and standing aqueous drainage, said drain sanitizing article comprising a solid circular bar having an outer wall and an inner wall, said inner wall defining an opening in said bar wherein when said drain sanitizing article is placed into a drain comprising a drain trap and a drain pipe, said solid circular bar outer wall lies adjacent to said drain trap and said bar inner wall lies adjacent said drain pipe allowing for the passage of drainage over the article into the drain, said article comprising (a) from about 5 wt-% to 80 wt-% of an antimicrobial sanitizer, said sanitizer selected from the group consisting of an n-alkyl dimethyl benzyl ammonium chloride, an organic encapsulated chlorine releasing agent, an inorganic chlorine source, a phenol source, an aldehyde, an iodophor and mixtures thereof, and (b) from about 20 wt-% to 95 wt-% of a hardener, said hardener selected from the group consisting of an alkyl amide, a nonionic surfactant, a water soluble starch, urea, and mixtures thereof.

20. The article of claim 19 wherein said chemical sanitizing agent is a hardened pressed tablet.

21. The article of claim 19 wherein said n-alkyl dimethyl benzyl ammonium chloride is selected from the group consisting of n-tetradecyl n-alkyl dimethyl benzyl ammonium chloride monohydrate, n-alkyl dimethyl benzyl 1-naphthylmethyl ammonium chloride and mixtures thereof.

22. The article of claim 19 wherein said organic encapsulated chlorine donating agent is selected from the group consisting of trichloro(iso)cyanuric acid, sodium dichloro(iso)cyanurate potassium dichloro(iso)cyanurate, sodium dichloro(iso)cyanurate dihydrate, and mixtures thereof.

23. The article of claim 19 wherein said inorganic chlorine source is selected from the group consisting of LiOCl, Ca(OCl)₂, and mixtures thereof.

24. The article of claim 19 wherein said phenol source is selected from the group consisting of o-phenylphenol, 2,4,5-trichlorophenol, 2,4,6-trichlorophenol, 2-chloro-4-phenylphenol, 2,3,4,6-tetrachlorophenol, pentachlorophenol, 4-chloro-2-phenylphenol, 6-chloro-2-phenylphenol, Na-o-phenylphenol, Na-2,4,5-trichlorophenol, Na-pentachlorophenol, and mixtures thereof.

25. The article of claim 19 wherein said aldehyde selected from a group consisting of formaldehyde, glutaraldehyde, and mixtures thereof.

26. The article of claim 19 wherein said iodophor is selected from the group consisting of iodine-nonionic surfactant complexes, iodine-polyvinyl pyrollidone complexes, iodine-quaternary ammonium chloride complexes, amphoteric-iodine complexes, and mixtures thereof.

27. The article of claim 19 wherein said alkyl amide is selected from the group consisting of lauric diethanolamide, stearic diethanolamide, stearic monoethanolamide, and mixtures thereof.

28. The article of claim 19 wherein said nonionic surfactant is selected from the group consisting of nonyl phenol ethoxylates, C_12-14 linear alcohol ethoxylates, ethylene oxide/propylene oxide copolymers, and mixtures thereof.

29. The article of claim 28 wherein said hardener additionally comprises a coupling agent, said coupling agent selected from the group consisting of propylene glycol, polyethylene glycol, and mixtures thereof.

30. The article of claim 19 wherein said antimicrobial sanitizer comprises an n-alkyl dimethyl benzyl ammonium chloride, the alkyl group comprising 60 wt-% C₁₄, 30 wt-% C₁₆, 5 wt-% C₁₂, and 5 wt-% C₁₈.