Sulfonic acid, carboxylic acid, and salts thereof

Patent metadata

Field	Value
Publication number	US-11440875-B2
Application number	US-201816495641-A
Country	US
Kind code	B2
Filing date	Mar 30, 2018
Priority date	Mar 31, 2017
Publication date	Sep 13, 2022
Grant date	Sep 13, 2022

Abstract

A sulfonic acid or carboxylic acid containing a carbonyl group, or a salt thereof represented by the following formula:

R 1 —C(═O)—(CR 2 2 ) n —(OR 3 ) p —(CR 4 2 ) q -L-A

wherein R 1 , R 2 , R 3 , R 4 , n, p, q, A and L are as defined herein.

First claim

The invention claimed is:

1. A compound represented by the following formula:

wherein
R 1 is a methyl group;
R 2 and R 4 are each individually H or a substituent, wherein the substituent is selected from the group consisting of a halogen atom, a C1-C10 linear or branched alkyl group, a C3-C10 cyclic alkyl group and a hydroxyl group;
R 3 is a C1-C10 alkylene group;
n is an integer of 1 or greater;
p and q are each individually an integer of 0 or greater;
a sum of n, p, and q is an integer of 8 or greater;
A is —SO 3 X or —COOX, wherein X is NR 5 4 , imidazolium, or phosphonium, where R 5 s are each H or a non-substituted alkyl group and are the same as or different from each other and at least one R 5 among four of R 5 s is H; and
L is a single bond, —CO 2 —B—*, —OCO—B—*, —CONR 6 —B—*, —NR 6 CO—B—*, or —CO—, where B is a single bond or a C1-C10 alkylene group, R 6 is H or a C1-C4 alkyl group, and * indicates the bond to A in the formula.

2. The compound according to claim 1 ,
wherein the compound contains 30 or fewer carbon atoms in total.

3. The compound according to claim 1 ,
wherein L is a single bond.

4. The compound according to claim 1 ,
wherein R 2 and R 4 are each H or a C1-C4 linear or branched alkyl group.

5. The compound according to claim 1 ,
wherein R 3 is a C1-C4 alkylene group free from a substituent.

6. The compound according to claim 1 ,
wherein X in the formula is NR 5 4 .

7. The compound according to claim 1 ,
wherein the compound is an aqueous dispersant.

8. The compound according to claim 1 , wherein the compound contains 10 to 30 carbon atoms in total.

9. The compound according to claim 1 , wherein the compound contains 10 to 20 carbon atoms in total.

10. The compound according to claim 1 , wherein A is —COOX and X is NR 5 4 .

Assignees

• Daikin Ind Ltd

Inventors

• Higashi Masahiro
• Yoneda Satoru
• Yamauchi Akiyoshi
• Ishihara Sumi
• Kishikawa Yosuke
• Nakano Marina
• Nitta Shinnosuke
• Aoyama Hirokazu

Classifications

• C07C59/347

  containing keto groups · CPC title

• C07C235/74

  of a saturated carbon skeleton · CPC title

• C07C309/07

  containing oxygen atoms bound to the carbon skeleton · CPC title

• C07C53/126

  Acids containing more than four carbon atoms · CPC title

• C07C309/10 Primary

  with the oxygen atom of at least one of the etherified hydroxy groups further bound to an acyclic carbon atom · CPC title