US4915864A
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Aqueous solution composition of strong alkali and nonionic surface active agent
Assignee: Kao Corp
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Filing: 1988-06-13
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Granted: 1990-04-10
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Expires: 2008-06-13
Abstract
Abstract An aqueous solution composition of a strong alkali and a nonionic surface active agent comprising: (a) a strong alkali, (b) a nonionic surface active agent having an HLB value of 3-18, and, as a solubilizing agent, (c) a specific type of carboxylic acid is disclosed. The composition contains a strong alkali and a nonionic surface active agent having an HLB value usually of 3-18 at high concentrations and stably and is homogeneous and transparent. Thus, it is useful for a variety of applications requiring both alkalinity and detergency, for example, as wettability promoting agents of glass, fiber, metal, and earthenware surfaces as well as various toiletry products.
Inventors
- 👤 Kazuo Kita
- 👤 Etsuko Morimi
- 👤 Toshimasa Hamai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:52
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C23; C23G; C23G1/00; C23G1/14; C11D10/00; C11D10/04; C11D3/2075; C11D3/2079; C11D7/00; C11D7/02; C11D7/04; C11D7/06; C23G1/16; C23G1/18; C25; C25F; C25F1/00; C11D1/00; C11D1/02; C11D1/04; C11D1/10; C11D1/66; C11D1/72
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
226 words
An aqueous solution composition of a strong alkali and a nonionic surface active agent comprising: (a) a strong alkali, (b) a nonionic surface active agent having an HLB value of 3-18, and, as a solubilizing agent, (c) a carboxylic acid represented by the following formula (I): R.sub.1 COOM.sub.1 (I) in which R 1 represents a C 4-18 linear aliphatic hydrocarbon group, C 4-18 branched aliphatic hydrocarbon group, or C 6-18 aromatic hydrocarbon group, and M 1 represents a hydrogen atom, an alkali metal, an aliphatic amine having a C 1-4 carbon atom content, ammonia, or an alkanolamine, and a carboxylic acid of the following formula (II), in combination: R.sub.2 --X--(CH.sub.2).sub.m1 COOM.sub.2 (II) in which R 2 represents a C 4-18 linear aliphatic hydrocarbon group; C 4-18 branched aliphatic hydrocarbon group, or C 6-18 aromatic hydrocarbon group, X represents a group >NH, >N(CH 2 ) n1 COOM 2 , or >CHCOOM 2 , M 2 represents a hydrogen atom, an alkali metal, an aliphatic amine having a C 1-4 carbon atom content, ammonia, or alkanolamine, and m1 and n1 independently indicate integers of 1-3, wherein the strong alkali (a) is present in an amount of 3-50 wt. %, the nonionic surface active agent (b) is present in an amount of 0.01-30 wt. %, and the solubilizing agent (c) is present in an amount of 0.01-30 wt. %.
Claim 2
Dependent Claim
226 words
An aqueous solution composition of a strong alkali and a nonionic surface active agent comprising: (a) a strong alkali, (b) a nonionic surface active agent having an HLB value of 3-18, and, as a solubilizing agent, (c) a carboxylic acid represented by the following formula (I): R.sub.1 COOM.sub.1 (I) in which R 1 represents a C 4-18 linear aliphatic hydrocarbon group, C 4-18 branched aliphatic hydrocarbon group, or C 6-18 aromatic hydrocarbon group, and M 1 represents a hydrogen atom, an alkali metal, an aliphatic amine having a C 1-4 carbon atom content, ammonia, or an alkanolamine, and a carboxylic acid of the following formula (II), in combination: R.sub.2 --X--(CH.sub.2).sub.m1 COOM.sub.2 (II) in which R 2 represents a C 4-18 linear aliphatic hydrocarbon group; C 4-18 branched aliphatic hydrocarbon group, or C 6-18 aromatic hydrocarbon group, X represents a group >NH, >N(CH 2 ) n1 COOM 2 , or >CHCOOM 2 , M 2 represents a hydrogen atom, an alkali metal, an aliphatic amine having a C 1-4 carbon atom content, ammonia, or alkanolamine, and m1 and n1 independently indicate integers of 1-3, wherein the strong alkali (a) is present in an amount of 3-50 wt. %, the nonionic surface active agent (b) is present in an amount of 0.01-30 wt. %, and the solubilizing agent (c) is present in an amount of 0.01-30 wt. %.
Claim 3
Dependent Claim
31 words
The aqueous solution composition of a strong alkali and a nonionic surface active agent according to claim 1, wherein the pH of said aqueous solution composition is not less than 10.
Claim 4
Dependent Claim
50 words
The aqueous solution composition according to claim 1, wherein the strong alkali (a) is present in an amount of 5-30 wt. %, the nonionic surface active agent (b) is present in an amount of 0.1-10 wt. %, and the solubilizing agent (c) is present in amount of 0.1-20 wt. %.
Claim 5
Dependent Claim
19 words
The aqueous soltuion composition according to claim 1, wherein the ratio of the compound of formula (I)/(II) is 9/1-1/9.
Claim 6
Dependent Claim
19 words
The aqueous solution composition according to claim 3, wherein the ratio of the compound of formula (I)/(II) is 9/1-1/9.
Claim 7
Dependent Claim
19 words
The aqueous solution composition according to claim 1, wherein the ratio of the compounds of formula (I)/(II) is 7/3-3/7.
Claim 8
Dependent Claim
19 words
The aqueous solution composition according to claim 3, wherein the ratio of the compounds of formula (I)/(II) is 7/3-3/7.
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