Patent US4591498A successfully refreshed from Google Patents.
US4591498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shampoo composition
Assignee: Kao Corp
•
Filing: 1984-10-17
•
Granted: 1986-05-27
•
Expires: 2004-10-17
Abstract
Abstract In a shampoo composition which comprises an anionic surface active agent and/or an amphoteric surface active agent as a base, the following two ingredients (A) and (B) are further comprised: (A) 0.5 to 10 wt % of an N-acyl-N-methyl-beta-alanine or its salt represented by the formula (I) ##STR1## in which R represents a linear or branched, saturated or unsaturated hydrocarbon group having from 7 to 21 carbon atoms, and M represents hydrogen, alkali metal etc., (B) 0.5 to 20 wt % of one or more of ethylene oxide-added type nonionic surface active agents selected from the group consisting of polyoxyethylene alkyl or alkenyl ethers, polyoxyethylene alkylphenyl ethers, etc. The composition has excellent detergent performance on the oily dirt exhibiting good foamability at the time of shampooing.
Inventors
- 👤 Jiro Kawase
- 👤 Takao Tokano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:10
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/39; A61K8/40; A61K8/44; A61Q; A61Q5/00; A61Q5/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
159 words
In a shampoo composition of the type which comprises 5-30 wt % of an agent selected from the group consisting of an anionic surface active agent, an amphoteric surface active agent and a mixture thereof as a base, the improvement comprising adding: (A) 0.5 to 10 wt % of an N-acyl-N-methyl-beta-alanine or its salt represented by the formula (I) ##STR10## in which R represents a linear or branched, saturated or unsaturated hydrocarbon group having from 7 to 21 carbon atoms, and M represents hydrogen, an alkali metal, ammonium, alkyl-substituted ammonium with an alkyl moiety having from 1 to 3 carbon atoms, alkanolamine having a hydroxyalkyl group having from 1 to 3 carbon atoms, and basic amino acid, and (B) 0.5 to 20 wt % of one or more of ethylene oxide-added type nonionic surface active agents selected from the group consisting of polyoxyethylene alkyl or alkenyl ethers, polyoxyethylene alkylphenyl ethers, polyoxyethylene fatty acid esters, and polyoxyethylene hardened castor oils.
Claim 2
Dependent Claim
159 words
In a shampoo composition of the type which comprises 5-30 wt % of an agent selected from the group consisting of an anionic surface active agent, an amphoteric surface active agent and a mixture thereof as a base, the improvement comprising adding: (A) 0.5 to 10 wt % of an N-acyl-N-methyl-beta-alanine or its salt represented by the formula (I) ##STR10## in which R represents a linear or branched, saturated or unsaturated hydrocarbon group having from 7 to 21 carbon atoms, and M represents hydrogen, an alkali metal, ammonium, alkyl-substituted ammonium with an alkyl moiety having from 1 to 3 carbon atoms, alkanolamine having a hydroxyalkyl group having from 1 to 3 carbon atoms, and basic amino acid, and (B) 0.5 to 20 wt % of one or more of ethylene oxide-added type nonionic surface active agents selected from the group consisting of polyoxyethylene alkyl or alkenyl ethers, polyoxyethylene alkylphenyl ethers, polyoxyethylene fatty acid esters, and polyoxyethylene hardened castor oils.
Claim 3
Dependent Claim
20 words
The shampoo composition according to claim 1, wherein the ingredient (A) is N-lauroyl-N-methyl-beta-alanine or its sodium salt or triethanolamine salt.
Claim 4
Dependent Claim
20 words
The shampoo composition according to claim 1 or 2, wherein the composition has a pH ranging from 5.5 to 7.5.
Claim 5
Dependent Claim
67 words
The shampoo composition of claim 1, wherein (A) is selected from the group consisting of the compound of formula (I) wherein RCO--is selected from the group consisting of lauroyl, myristoyl, palmitoyl, stearoyl, oleoyl, and isostearoyl; M is alkali metals, ammonium, (C 1 -C 3 ) alkyl-substituted ammonium, (C 1 -C 3 ) alkanolamines or a basic amino acids selected from the group consisting of lysine and arginine.
Claim 6
Dependent Claim
19 words
The shampoo composition of claim 4 wherein the N-acyl-N-methyl-beta-alanine is in the form of a sodium or triethanolamine salt.
Claim 7
Dependent Claim
18 words
The shampoo composition of claim 1 wherein (A) is present in an amount of between 1 and 6%.
Claim 8
Dependent Claim
128 words
The shampoo composition of claim 1 wherein (B) is selected from the group consisting of polyoxyethylene alkyl or alkenyl ethers; said alkyl or alkenyl group containing an average of 8 to 20 carbon atoms and said ethylene oxide being added in an amount of 3-20 moles, polyoxyethylene alkylphenyl ethers wherein the alkyl group contains an average of 8 to 12 carbon atoms and said ethylene oxide being in an amount of 3 to 20 moles, polyoxyethylene fatty acid esters; wherein said alkyl or alkenyl group contains an average of 8 to 20 carbon atoms and said ethylene oxide being added in an amount of 8 to 100 moles of ethylene oxide, and polyoxyethylene hardened castor oil; said polyoxyethylene oxide added in an amount of 3 to 200 moles.
Claim 9
Dependent Claim
24 words
The shampoo composition of claim 7, wherein (B) is selected from the group consisting of polyoxyethylene alkyl, alkenyl ethers and polyoxyethylene hardened castor oils.
Claim 10
Dependent Claim
19 words
The shampoo composition of claim 1, wherein (B) is present in an amount of between about 1 and 10%.
References Cited (Backward Citations)
US4166845A
Cited
US4061602A
Cited
US4240450A
Cited
US4220167A
Cited
US4220168A
Cited
US4374125A
Cited
US4265782A
Cited
US4372869A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-26 | 1989-11-25 | 1990-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-26 | 1993-11-25 | 1994-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-26 | 1997-11-25 | 1998-05-27 | $7700.00 | Window Closed / Lapsed |