Patent US4132774A successfully refreshed from Google Patents.
US4132774A
Expired / Lapsed
US
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Method of and composition for screening erythema inducing ultraviolet bands
Assignee: GAF Corp
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Filing: 1976-12-06
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Granted: 1979-01-02
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Expires: 1996-12-06
Abstract
Abstract A novel sun tanning composition, method of making same and method of controlling sunburn comprising application to the skin of a cosmetic carrier containing the novel mixture of ethyl esters of N-monoalkylamino and N,N-dialkylamino benzoic acid wherein the alkyl groups are methyl or ethyl and the amino and ester groups are in para relationship on the benzene ring.
Inventors
- 👤 Albert F. Strobel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:23
CPC Classifications
A; A61; A61Q; A61Q19/00; A61Q19/04; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/44; A61K8/445; A61Q17/00; A61Q17/04
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
96 words
A sun screening composition comprising an inert carrier having distributed therein an effective sunscreening amount of a mixture of N-monoalkylamino- and N,N-dialkylamino-ethylbenzoates having the structure ##STR7## wherein R 1 is methyl or ethyl and R 2 is hydrogen, methyl or ethyl, and intermixtures thereof; and wherein the N,N-dialkylamino ethylbenzoate portion of the mixture is between about 25 and 50 weight % where R 1 and R 2 are methyl and between about 50 and 85 weight % when R 1 and R 2 are ethyl and the remaining portion of said mixture is essentially said N-monoalkylamino-ethylbenzoate.
Claim 2
Dependent Claim
96 words
A sun screening composition comprising an inert carrier having distributed therein an effective sunscreening amount of a mixture of N-monoalkylamino- and N,N-dialkylamino-ethylbenzoates having the structure ##STR7## wherein R 1 is methyl or ethyl and R 2 is hydrogen, methyl or ethyl, and intermixtures thereof; and wherein the N,N-dialkylamino ethylbenzoate portion of the mixture is between about 25 and 50 weight % where R 1 and R 2 are methyl and between about 50 and 85 weight % when R 1 and R 2 are ethyl and the remaining portion of said mixture is essentially said N-monoalkylamino-ethylbenzoate.
Claim 3
Dependent Claim
38 words
The composition of claim 1 wherein R 1 and R 2 are methyl in the N,N-dialkylamino ethyl benzoate portion and R 1 is methyl and R 2 is hydrogen in the N-monoalkylamino ethylbenzoate portion of a bi-component mixture.
Claim 4
Dependent Claim
21 words
The composition of claim 2 wherein the N,N-dimethylamino ethyl benzoate portion of the mixture is between 40 and 50 weight %.
Claim 5
Dependent Claim
38 words
The composition of claim 1 wherein R 1 and R 2 are ethyl in the N,N-dialkylamino ethylbenzoate portion and R 1 is ethyl and R 2 is hydrogen in the N-monoalkylamino ethyl benzoate portion of a bi-component mixture.
Claim 6
Dependent Claim
20 words
The composition of claim 4 wherein the N,N-diethylamino ethylbenzoate portion of the mixture is between 75 and 85 weight %.
Claim 7
Dependent Claim
25 words
The composition of claim 1 wherein between about 0.5 and about 12 weight % of the composition comprises said mixture of N-monoalkylamino and N,N-dialkylamino ethylbenzoates.
Claim 8
Dependent Claim
20 words
The composition of claim 6 wherein between about 1 and about 5 weight % of the composition comprises said mixture.
Claim 9
Dependent Claim
31 words
The composition of claim 1 wherein said mixture comprises the N,N-diethylamino ethylbenzoate/N-ethylamino ethylbenzoate mixture containing up to 30 weight % of N,N-dimethylamino ethylbenzoate/N-monomethylamino ethylbenzoate mixture based on the total benzoate mixture.
Claim 10
Dependent Claim
55 words
The composition of claim 1 wherein a mixture of 50 to 85 weight % of N,N-diethylamino ethylbenzoate and 50 to 15 weight % of N-ethylamino ethylbenzoate is intermixed with 0 to 50 weight % of a mixture of 25 to 50 weight % of N,N-dimethylamino ethylbenzoate and 75 to 50 weight % of N-methylamino ethylbenzoate.
Claim 11
Dependent Claim
11 words
The composition of claim 1 wherein the composition contains an antioxidant.
Claim 12
Dependent Claim
24 words
The composition of claim 10 wherein antioxidant is present in an amount between about 0.1 and about 8 weight % based on total composition.
Claim 13
Dependent Claim
22 words
The composition of claim 1 wherein the carrier is an aqueous solution of an aliphatic alcohol containing two to four carbon atoms.
Claim 14
Dependent Claim
13 words
The composition of claim 1 wherein the carrier is a polyoxylated vegetable oil.
Claim 15
Dependent Claim
12 words
The composition of claim 1 wherein the carrier is an alcohol-glycerin mixture.
Claim 16
Dependent Claim
18 words
The composition of claim 1 wherein the carrier is a mixture of isopropyl stearate and polyoxyethylated sorbitan monopalmitate.
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 |