Methods of making triamine solids

Patent metadata

Field	Value
Publication number	US-10440950-B2
Application number	US-201615267508-A
Country	US
Kind code	B2
Filing date	Sep 16, 2016
Priority date	Sep 17, 2015
Publication date	Oct 15, 2019
Grant date	Oct 15, 2019

Abstract

Methods of making triamine solids are disclosed. Solids including free-flowing powders, to pressed, cast, extruded or other solids are disclosed. Compositions employing the solid triamines are provided and methods of use thereof are particularly suitable for cleaning, disinfecting, sanitizing, rinsing and/or lubricating are disclosed.

First claim

What is claimed is:

1. A method of making a solid triamine composition comprising:
mixing a triamine and an acid, wherein the acid is a monoacid and/or a diacid, wherein the triamine has the following formula:

wherein R is a straight chain C1-C12 alkyl group, and wherein the ratio of the acid to the triamine is from about 1:10 to about 1:1; and

at least partially neutralizing the triamine to a pH of about 6 to about 11 to form a solid amine salt;
wherein the method forms a solid composition at a temperature between about 70° F. (21° C.) and 130° F. (55° C.) without requiring casting, extrusion, or cooling step;
wherein the monoacid has the formula R—COOH,
wherein R is a branched or linear C4-C20 alkane or alkene, and wherein the diacid is selected from the group consisting of the structure of (a), (b), (c) and combinations thereof, as shown:

wherein:
n=1-20,
R 1 is H, C1-C8 alkyl or COOH,
R 2 is H, C1-C8 alkyl, NH 2 , OH, or COOH, and
R 1 and R 2 substitution occurs on at least one carbon within C1-C20 chain;

R 1 and R 2 are each COOH; R 3 , R 4 , R 5 and R 6 independently are H, C1-C8 alkyl, OH, or NH 2
R 1 and R 3 are each COOH; R 2 , R 4 , R 5 and R 6 independently are H, C1-C8 alkyl, OH, or NH 2
R 1 and R 4 are each COOH; R 2 , R 3 , R 5 and R 6 independently are H, C1-C8 alkyl, OH, or NH 2
R 1 and R 5 are each COOH; R 2 , R 3 , R 4 and R 6 independently are H, C1-C8 alkyl, OH, or NH 2 or
R 1 and R 6 are each COOH; R 2 , R 3 , R 4 and R 5 independently are H, C1-C8 alkyl, OH, or NH 2 ;

R 1 and R 2 are each COOH; R 3 , R 4 , and R 5 independently are H, C1-C8 alkyl, OH, or NH 2 :
R 1 and R 3 are each COOH; R 2 , R 4 , and R 5 independently are H, C1-C8 alkyl, OH, or NH 2
R 1 and R 4 are each COOH; R 2 , R 3 , and R 5 independently are H, C1-C8 alkyl, OH, or NH 2 ;
R 1 and R 5 are each COOH; R 2 , R 3 , and R 4 independently are H, C1-C8 alkyl, OH, or NH 2 .

2. The method of claim 1 , wherein the concentration of the triamine is between about 10 and about 99 wt-% and the concentration of the acid is between about 1 and about 50 wt-%, and wherein the solid triamines remains solid at temperatures up to about 50° C.

3. The method of claim 1 , wherein the solid is a powder, paste or hardened solid and wherein the solid has a water content of less than about 10 wt-%.

4. The method of claim 1 , wherein the step of at least partially neutralizing the triamine neutralizes the pH to about 6.5 to about 9.5.

5. The method of claim 1 , wherein the step of at least partially neutralizing the triamine neutralizes the pH to about 7 to about 9.

6. The method of claim 1 , wherein the step of at least partially neutralizing the triamine occurs prior to solidification to stabilize the solid triamine.

7. The method of claim 1 , wherein the mixing occurs in a mixing vessel to provide a substantially homogenous mixture.

8. The method of claim 1 , wherein the mixing occurs in a continuous or batch process, and wherein the formation of the solid triamines occurs over a period from about 15 minutes to about 48 hours.

9. The method of claim 1 , wherein the ratio of the diacid to the biocidal triamine is from about 1:5 to about 1:1.

10. The method of claim 1 , wherein the solidification does not require a melt and/or conventional casting and/or extruding to compress the solid triamine through a die.

11. The method of claim 1 , wherein the monoacid and/or diacid is citric, tartaric, malic, maleic, malonic, succinic, adipic, aspartic, glutamic, dipicolinic, and/or dodecanoic acid.

12. The method of claim 1 , wherein no water is added to the reaction and/or a chelant is added to reduce the water content of the solid composition.

13. A method of cleaning, sanitizing and/or disinfecting comprising:
generating a solid triamine according to claim 1 ; and
optionally adding additional functional ingredients to the solid triamine and/or forming a composition comprising the solid triamine and additional functional ingredients, and
contacting an article or surface with a use solution of the solid triamine and/or a use solution of the composition for cleaning, sanitizing, and/or disinfecting.

14. The method of claim 13 , wherein the cleaning, sanitizing, and/or disinfecting is a rinse step and/or lubricating step.

15. The method of claim 13 , wherein the use solution of the solid triamine and/or compositions comprising the solid triamines provides between about 1 ppm to about 1000 ppm triamine, and between about 1 ppm to about 500 ppm acid.

Assignees

• Ecolab Usa Inc

Inventors

• Olson Erik C
• Silvernail Carter M
• Griese Gregory G

Classifications

• C11D3/2082

  Polycarboxylic acids-salts thereof · CPC title

• C10M105/58

  Amines, e.g. polyalkylene polyamines, quaternary amines (polyalkylene polyamines with eleven or more monomer units C10M107/44) · CPC title

• C10N2030/16

  Antiseptic; {(micro)} biocidal {or bactericidal} · CPC title

• C07C209/00

  Preparation of compounds containing amino groups bound to a carbon skeleton · CPC title

• C10M2215/041

  used as base material · CPC title