US4590069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel substantive moisturizing derivatives of 2-pyrrolidone-5-carboxylic acid and compositions containing same
Assignee: Yves Saint Laurent Parfums SA
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Filing: 1983-12-02
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Granted: 1986-05-20
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Expires: 2003-12-02
Abstract
Abstract Derivatives of 2-pyrrolidone-5-carboxylic acid having excellent moisturizing properties are provided which have the structure <IMAGE> wherein R1 and R2 are the same or different and are lower alkyl and aralkyl and n is 1 to 8 and including cationic salts thereof such as the pyrrolidone carboxylic acid salt thereof. These compounds are useful as moisturizing agents. Cosmetics, shampoos, hair conditioners and skin toners containing such compounds are also provided.
Inventors
- 👤 George E. Deckner
- 👤 Hedwig O'Grady
- 👤 Albert Zofchak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:24
CPC Classifications
A; A61; A61Q; A61Q19/00; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/49; A61K8/4906; A61K8/4913; C; C07; C07D; C07D207/00; C07D207/02; C07D207/18; C07D207/22; C07D207/24; C07D207/26; C07D207/273; C07D207/277; C07D207/28; A61Q5/00; A61Q5/02; A61Q5/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
81 words
In an improved skin and hair moisturizing composition including a moisturizing compound and a carrier therefor, wherein the improvement comprises a moisturizing effective amount of an amine oxide moisturizing compound of the structure ##STR10## wherein n is 1 to 8, R 1 and R 2 are the same or different and are lower alkyl or aralkyl, or a betaine derivative thereof having the structure ##STR11## together with a carrier therefor which includes from about 33 to about 90.45% by weight water.
Claim 2
Dependent Claim
81 words
In an improved skin and hair moisturizing composition including a moisturizing compound and a carrier therefor, wherein the improvement comprises a moisturizing effective amount of an amine oxide moisturizing compound of the structure ##STR10## wherein n is 1 to 8, R 1 and R 2 are the same or different and are lower alkyl or aralkyl, or a betaine derivative thereof having the structure ##STR11## together with a carrier therefor which includes from about 33 to about 90.45% by weight water.
Claim 3
Dependent Claim
25 words
The composition as defined in claim 1 wherein n is 2 to 5 and R 1 and R 2 are each the same lower alkyl.
Claim 4
Dependent Claim
19 words
The composition as defined in claim 1 wherein the moisturing compound comprises the amine oxide having the structure ##STR12##
Claim 5
Dependent Claim
18 words
The composition as defined in claim 1 wherein the moisturizing compound comprises the betaine having the structure ##STR13##
Claim 6
Dependent Claim
45 words
In an improved method for moisturizing skin and hair by applying to the skin or hair a moisturing composition, wherein the improvement comprises applying to the skin or hair to be moisturized a moisturizing effective amount of a moisturizing composition as defined in claim 1.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-19 | 1989-11-18 | 1990-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-19 | 1993-11-18 | 1994-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-19 | 1997-11-18 | 1998-05-20 | $7700.00 | Window Closed / Lapsed |