Hard surface cleaning concentrate packet

Patent metadata

Field	Value
Publication number	US-12454664-B2
Application number	US-202118008353-A
Country	US
Kind code	B2
Filing date	Jul 26, 2021
Priority date	Jul 31, 2020
Publication date	Oct 28, 2025
Grant date	Oct 28, 2025

Abstract

A hard surface cleaning concentrate packet, is provided including: water soluble film; concentrated hard surface cleaning composition, comprising: glycol ether of formula I

R 1 —O—[CH 2 CH(R 2 )O] a —H  (I)

wherein R 1 is a linear or branched C 2-8 alkyl group; wherein each R 2 is independently selected from hydrogen and methyl; and wherein a is 1 to 3; a nonionic surfactant of formula II

wherein w is 5 to 40; wherein R 3 is a hydrogen and a linear or branched C 1-20 alkyl group; wherein R 4 is selected from a linear or branched C 1-20 alkyl group and a linear or branched C 1-4 hydroxyalkyl group; wherein each R 5 is independently hydrogen, methyl, ethyl, n-propyl, iso-propyl, n-butyl, 2-butyl and 2-methyl-2-butyl; and with the proviso that sum of the total number of carbon atoms in R 3 and R 4 is 5 to 21; and a tertiary amine; wherein the water soluble film encapsulates the concentrated hard surface cleaning composition.

First claim

We claim:

1. A hard surface cleaning concentrate packet, comprising:
a water soluble film;
a concentrated hard surface cleaning composition, comprising:
15 to 50 wt %, based on weight of the concentrated hard surface cleaning composition, of a glycol ether of formula I
R 1 —O—[CH 2 CH(R 2 )O] a —H  (I)

wherein R 1 is a linear or branched C 2-8 alkyl group; wherein each R 2 is independently selected from the group consisting of a hydrogen and a methyl group; and wherein a is 1 to 3;
20 to 60 wt %, based on weight of the concentrated hard surface cleaning composition, of a nonionic surfactant of formula II

wherein w is an average of 5 to 40; wherein R 3 is selected from the group consisting of a hydrogen and a linear or branched C 1-20 alkyl group; wherein R 4 is selected from the group consisting of a linear or branched C 1-20 alkyl group and a linear or branched C 1-4 hydroxyalkyl group; wherein each R 5 is independently selected from the group consisting of a hydrogen, a methyl group, an ethyl group, a n-propyl group, an iso-propyl group, a n-butyl group, a 2-butyl group and a 2-methyl-2-butyl group; and with the proviso that sum of the total number of carbon atoms in R 3 and R 4 is 5 to 21; and
15 to 60 wt %, based on weight of the concentrated hard surface cleaning composition, of a tertiary amine;

wherein the water soluble film encapsulates the concentrated hard surface cleaning composition.

2. The hard surface cleaning concentrate packet of claim 1 , wherein the tertiary amine is of formula III

wherein R 6 , R 7 and R 8 are independently selected from the group consisting of a linear or branched C 1-20 alkyl group and a linear or branched C 1-20 hydroxyalkyl group.

3. The hard surface cleaning concentrate packet of claim 2 , wherein R 1 is a linear C 4-7 alkyl group; wherein a is 2.

4. The hard surface cleaning concentrate packet of claim 3 , wherein w is an average of 8 to 16; wherein R 3 is a linear C 1-15 alkyl group; wherein R 4 is a linear C 1-15 alkyl group; with the proviso that the sum of the total number of carbon atoms in R 3 and R 4 is 6 to 20.

5. The hard surface cleaning concentrate packet of claim 4 , wherein R 6 , R 7 and R 8 are independently selected from the group consisting of a linear or branched C 1-10 alkyl group and a linear or branched C 1-10 hydroxyalkyl group.

6. The hard surface cleaning concentrate packet of claim 5 , wherein R 6 , R 7 and R 8 are independently selected from the group consisting of a linear or branched C 1-10 hydroxyalkyl group.

7. The hard surface cleaning concentrate packet of claim 5 , wherein R 6 , R 7 and R 8 are independently selected from the group consisting of a branched C 3-5 alkyl group and a branched C 3-5 hydroxyalkyl group.

8. The hard surface cleaning concentrate packet of claim 7 , wherein R 6 , R 7 and R 8 are a branched C 3 hydroxyalkyl group.

9. A method of making a hard surface cleaning concentrate packet, comprising:
providing a water soluble film;
selecting a glycol ether of formula I
R 1 —O—[CH 2 CH(R 2 )O] a —H  (I)

wherein R 1 is a linear or branched C 2-8 alkyl group; wherein each R 2 is independently selected from the group consisting of a hydrogen and a methyl group; and wherein a is 1 to 3;

selecting a nonionic surfactant of formula II

wherein w is an average of 5 to 40; wherein R 3 is selected from the group consisting of a hydrogen and a linear or branched C 1-20 alkyl group; wherein R 4 is selected from the group consisting of a linear or branched C 1-20 alkyl group and a linear or branched C 1-4 hydroxyalkyl group; wherein each R 5 is independently selected from the group consisting of a hydrogen, a methyl group, an ethyl group, a n-propyl group, an iso-propyl group, a n-butyl group, a 2-butyl group and a 2-methyl-2-butyl group; and with the proviso that sum of the total number of carbon atoms in R 3 and R 4 is 5 to 21; and

selecting a tertiary amine;
providing the selected glycol ether of formula I;
providing the selected nonionic surfactant of formula II;
providing the selected tertiary amine;
combining the selected glycol ether of formula I, the selected nonionic surfactant of formula II and the selected tertiary amine to form a concentrated hard surface cleaning composition;
forming the hard surface cleaning concentrate packet by disposing the concentrated hard surface cleaning composition within an enclosed volume formed by water soluble film, wherein the water soluble film encapsulates the concentrated hard surface cleaning composition.

10. A method for removing oily, greasy, tough and stubborn soils from a hard surface, comprising:
providing a soiled hard surface;
providing a container;
providing a dilution water;
selecting a hard surface cleaning concentrate packet prepared according to the method of claim 9 ;
providing the selected hard surface cleaning concentrate packet;
combining the selected hard surface cleaning concentrate packet and the dilution water in the container to form a hard surface cleaning use composition;
wetting the soiled hard surface with the hard surface cleaning use composition; and
wiping the wetted soiled hard surface to provide a cleaned hard surface.

11. The hard surface cleaning concentrate packet of claim 8 , wherein the concentrated hard surface cleaning composition, comprises:
20 to 40 wt %, based on weight of the concentrated hard surface cleaning composition, of the glycol ether of formula I;
25 to 50 wt %, based on weight of the concentrated hard surface cleaning composition, of the nonionic surfactant of formula II; and
20 to 50 wt %, based on weight of the concentrated hard surface cleaning composition, of the tertiary amine.

12. The hard surface cleaning concentrate packet of claim 8 , wherein the concentrated hard surface cleaning composition, comprises:
25 to 30 wt %, based on weight of the concentrated hard surface cleaning composition, of the glycol ether of formula I;
30 to 40 wt %, based on weight of the concentrated hard surface cleaning composition, of the nonionic surfactant of formula II; and
25 to 40 wt %, based on weight of the concentrated hard surface cleaning composition, of the tertiary amine.

13. The hard surface cleaning concentrate packet of claim 8 , wherein the concentrated hard surface cleaning composition, comprises:
26 to 28 wt %, based on weight of the concentrated hard surface cleaning composition, of the glycol ether of formula I;
34 to 38 wt %, based on weight of the concentrated hard surface cleaning composition, of the nonionic surfactant of formula II; and
27 to 34 wt %, based on weight of the concentrated hard surface cleaning composition, of the tertiary amine.

Assignees

• Dow Silicones Corp

Inventors

• Nad Saugata
• Creutz Serge
• Simon Christel

Classifications

• C11D3/43

  Solvents · CPC title

• C11D3/30

  Amines; Substituted amines {; Quaternized amines} · CPC title

• C11D3/2068

  Ethers · CPC title

• C11D1/72

  Ethers of polyoxyalkylene glycols · CPC title

• B08B3/08

  the liquid having chemical or dissolving effect · CPC title