Composition

Patent metadata

Field	Value
Publication number	US-11655434-B2
Application number	US-201816769446-A
Country	US
Kind code	B2
Filing date	Dec 5, 2018
Priority date	Dec 6, 2017
Publication date	May 23, 2023
Grant date	May 23, 2023

Abstract

The present invention relates a composition capable of enhancing cleaning properties of a soil during cleaning by treating an object.The composition is a composition containing a modified hydroxyalkyl cellulose and at least one selected from an anionic surfactant and a nonionic surfactant, the modified hydroxyalkyl cellulose being one in which a cationic group and a hydrophobic group represented by the formula (1) are bound to a group resulting from eliminating a hydrogen atom from a hydroxy group of a hydroxyalkyl cellulose.*—Z—R1  (1)wherein,Z represents a single bond or a hydrocarbon group having an oxygen atom; R1 represents a hydrocarbon group having 2 or more carbon atoms; and * represents a binding position to a group resulting from eliminating a hydrogen atom from a hydroxy group of a hydroxyalkyl cellulose.

First claim

The invention claimed is:

1. A composition comprising:
a modified hydroxyalkyl cellulose; and
at least one selected from an anionic surfactant and a nonionic surfactant,
wherein the modified hydroxyalkyl cellulose is one in which a cationic group and a hydrophobic group are bound to a group resulting from eliminating a hydrogen atom from a hydroxy group of a hydroxyalkyl cellulose, and
wherein the hydrophobic group comprises at least one selected from a hydrophobic group represented by the following formula (1-1-1) and a hydrophobic group represented by the following formula (1-1-2):

wherein:
R 11 represents an alkylene group having 2 to 4 carbon atoms;
R 1 represents a hydrocarbon group having 2-14 carbon atoms;
* represents a binding position to a group resulting from eliminating a hydrogen atom from a hydroxy group of the hydroxyalkyl cellulose;
n1 represents an addition molar number of —R 11 —O—; and
n1 is an integer of 0 or more and 30 or less.

2. The composition according to claim 1 , wherein the cationic group comprises a quaternary ammonium cation.

3. The composition according to claim 1 , wherein the cationic group is represented by the formula (2-1) or formula (2-2):

wherein,
R 21 to R 23 each independently represent a hydrocarbon group having 1 or more and 4 or less carbon atoms; X − represents an anion; t represents an integer of 0 or more and 3 or less; and * represents a binding position to a group resulting from eliminating a hydrogen atom from a hydroxy group of the hydroxyalkyl cellulose.

4. The composition according to claim 1 , comprising the anionic surfactant and the nonionic surfactant.

5. The composition according to claim 1 , wherein the content of an amide-based nonionic surfactant that is the nonionic surfactant is 5 parts by mass or less based on 1 part by mass of the modified hydroxyalkyl cellulose.

6. The composition according to claim 1 , wherein a degree of substitution of the cationic group in the modified hydroxyalkyl cellulose is 0.001 or more and 1 or less.

7. The composition according to claim 1 , wherein a degree of substitution of the hydrophobic groups represented by the formula (1-1-1) and formula (1-1-2) in the modified hydroxyalkyl cellulose is 0.0001 or more and 1 or less.

8. The composition according to claim 1 , wherein a weight average molecular weight of the hydroxyalkyl cellulose is 1,000 or more and 3,000,000 or less.

9. The composition according to claim 1 , wherein a mass ratio of the total content of the anionic surfactant and the nonionic surfactant to the content of the modified hydroxyalkyl cellulose [(the total content of the anionic surfactant and the nonionic surfactant)/(the content of the modified hydroxyalkyl cellulose)] is 0.1 or more and 2,000 or less.

10. The composition according to claim 1 , further comprising water.

11. The composition according to claim 1 , wherein a ratio (MS R /MS C ) of the degree of substitution (MS R ) of the hydrophobic group to the degree of substitution (MS C ) of the cationic group in the modified hydroxyalkyl cellulose is 0.001 or more and 10 or less.

12. A method of cleaning clothes, said method comprising contacting said clothes with the composition according to claim 1 .

13. A method of cleaning a hydrophobic surface, said method comprising contacting said hydrophobic surface with the composition according to claim 1 .

14. The composition according to claim 1 , wherein the composition comprises an anionic surfactant.

15. The composition according to claim 1 , wherein the composition comprises a nonionic surfactant.

16. The composition according to claim 1 , wherein the hydrophobic group comprises a hydrophobic group represented by formula (1-1-1).

17. The composition according to claim 1 , wherein R 1 represents a hydrocarbon group having 2-12 carbon atoms.

18. The composition according to claim 1 , wherein the hydrophobic group comprises a hydrophobic group represented by formula (1-1-2).

Assignees

• Kao Corp

Inventors

• Saito Takanori
• Imori Yoichiro
• Koyama Akihiro
• Yamawaki Yukiko

Classifications

• C11D3/3707

  Polyethers, e.g. polyalkyleneoxides · CPC title

• C11D1/83

  Mixtures of non-ionic with anionic compounds · CPC title

• C11D3/37

  Polymers {(polymeric surface-active agents C11D1/008; polysaccharides C11D3/222)} · CPC title

• C08B11/08

  with hydroxylated hydrocarbon radicals; Esters, ethers, or acetals thereof · CPC title

• C08L1/284 Primary

  with hydroxylated hydrocarbon radicals · CPC title