Patent US2279131A successfully refreshed from Google Patents.
US4132679A
Expired / Lapsed
US
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Low irritant shampoo composition
Assignee: Kao Corp
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Filing: 1977-08-04
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Granted: 1979-01-02
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Expires: 1997-08-04
Abstract
Abstract A liquid shampoo composition comprising an aqueous solution of (A) monoalkyl ester salt of phosphoric acid and (B) trialkylaminoacetobetaine, trialkylaminopropanesulfobetaine or mixture thereof. The composition possesses high detergency, high foaming and low skin irritation properties.
Inventors
- 👤 Hisao Tsutsumi
- 👤 Hiroshi Watanabe
- 👤 Shizuo Hayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:19
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/55; A61K8/40; A61K8/44; A61Q; A61Q5/00; A61Q5/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
245 words
A shampoo composition consisting essentially of (A) from one to 40% by weight of one or a mixture of two or more monoalkyl ester salts of phosphoric acid having the formula (1): ##STR4## wherein R 1 is straight-chain alkyl having an average carbon atom number of from 10 to 14, straight-chain alkenyl having an average carbon atom number of from 10 to 18, branched-chain or alicyclic alkyl having an average carbon atom number of from 10 to 18, or branched-chain or alicyclic alkenyl having an average carbon atom number of from 10 to 18, and X is selected from the group consisting of hydrogen, alkali metal, ammonium, lower alkyl (C 1 to C 3 ) ammonium and hydroxyalkyl (C 1 to C 3 ) ammonium, with the proviso that both X's are not hydrogen simultaneously, (B) from 0.1 to 40% by weight of one member or a mixture of two or more members selected from the group consisting of trialkylaminoacetobetaines having the formula (2): ##STR5## wherein R 2 is alkyl or alkenyl having an average carbon atom number of from 10 to 16 and R 3 and R 4 each is alkyl having from one to 3 carbon atoms, and trialkylaminopropane-sulfobetaines having the formula (3): ##STR6## wherein R 5 is alkyl having an average carbon atom number of from 10 to 16 and R 6 and R 7 each is alkyl having from one to 3 carbon atoms, and (C) the balance is essentially water.
Claim 2
Dependent Claim
245 words
A shampoo composition consisting essentially of (A) from one to 40% by weight of one or a mixture of two or more monoalkyl ester salts of phosphoric acid having the formula (1): ##STR4## wherein R 1 is straight-chain alkyl having an average carbon atom number of from 10 to 14, straight-chain alkenyl having an average carbon atom number of from 10 to 18, branched-chain or alicyclic alkyl having an average carbon atom number of from 10 to 18, or branched-chain or alicyclic alkenyl having an average carbon atom number of from 10 to 18, and X is selected from the group consisting of hydrogen, alkali metal, ammonium, lower alkyl (C 1 to C 3 ) ammonium and hydroxyalkyl (C 1 to C 3 ) ammonium, with the proviso that both X's are not hydrogen simultaneously, (B) from 0.1 to 40% by weight of one member or a mixture of two or more members selected from the group consisting of trialkylaminoacetobetaines having the formula (2): ##STR5## wherein R 2 is alkyl or alkenyl having an average carbon atom number of from 10 to 16 and R 3 and R 4 each is alkyl having from one to 3 carbon atoms, and trialkylaminopropane-sulfobetaines having the formula (3): ##STR6## wherein R 5 is alkyl having an average carbon atom number of from 10 to 16 and R 6 and R 7 each is alkyl having from one to 3 carbon atoms, and (C) the balance is essentially water.
Claim 3
Dependent Claim
37 words
A shampoo composition as set forth in claim 1 wherein component B consists of compound or compounds of the formula (2), and wherein the mixing weight ratio of A/B is in the range of 95/5 to 45/55.
Claim 4
Dependent Claim
37 words
A shampoo composition as set forth in claim 1 wherein component B consists of compound or compounds of the formula (3), and wherein the mixing weight ratio of A/B is in the range of 95/5 to 45/55.
Claim 5
Dependent Claim
36 words
A shampoo composition as set forth in claim 1 which contains a mixture of formula (2) and formula (3) compounds, and wherein the weight ratio of A/B is in the range of from 95/5 to 55/45.
Claim 6
Dependent Claim
88 words
A shampoo composition as set forth in claim 1 wherein R 1 is straight-chain alkyl having an average carbon atom number of from 10 to 14, straight-chain alkenyl having an average carbon atom number of from 16 to 18 or a branched alkyl or alkenyl having an average carbon atom number of from 16 to 18, R 2 is straight-chain alkyl having an average carbon atom number of 10 to 16, and R 5 is straight-chain alkyl having an average carbon atom number of from 10 to 16.
Claim 7
Dependent Claim
31 words
A shampoo composition as set forth in claim 1 wherein the alkali metal is sodium, potassium or lithium and the hydroxyalkyl ammonium is a quaternized ion of monoethanolamine, diethanolamine or triethanolamine.
Claim 8
Dependent Claim
25 words
A shampoo composition as set forth in claim 1 wherein each of R 3 , R 4 , R 6 and R 7 is methyl.
Claim 9
Dependent Claim
35 words
A shampoo composition as set forth in claim 1 which comprises a monolauryl ester salt of phosphoric acid having the formula ##STR7## and lauryldimethylaminopropane-sulfobetaine having the formula: ##STR8## at a weight of A/B of 80/20.
Claim 10
Dependent Claim
24 words
A shampoo composition according to claim 1 in which the mixing weight ratio of A/B is in the range of from 90/10 to 70/30.
Claim 11
Dependent Claim
22 words
A shampoo composition according to claim 1 in which the mixing weight ratio of A/B is in the range of about 80/20.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-01 | 1982-07-03 | 1983-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-01 | 1986-07-03 | 1987-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-01 | 1990-07-03 | 1991-01-02 | $7700.00 | Window Closed / Lapsed |