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US4045549A
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Sulfonium salt substantive sunscreen compositions
Assignee: Colgate Palmolive Co
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Filing: 1975-01-06
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Granted: 1977-08-30
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Expires: 1995-01-06
Abstract
Abstract A sunscreening composition comprising a highly substantive sulfonium salt sunscreening agent represented by the formula: <IMAGE> wherein A is a sunscreening moiety, having a prominent spectral absorption peak within the range of 250-400 millimicrons; R represents alkylene of from 2 to 18 carbon atoms; R' and R'' represent alkyl, and wherein the sum of the carbon atoms in R' and R'' is not less than 9 and not greater than 27, and wherein the nitrogen is linked to A as a carboxamido or sulfonamido group, and X is an anion, in a carrier.
Inventors
- 👤 John Fred Gerecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:52
CPC Classifications
A; A61; A61Q; A61Q17/00; A61Q17/04; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/46
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
157 words
A sunscreening composition comprising from 0.1% to 25% by weight of a substantive sulfonium salt sunscreening agent represented by the formula ##STR25## wherein A is a substituted benzene sunscreening moiety having a prominent spectral absorption peak within the range of 250-400 millimicrons and selected from the group consisting of 4-aminobenzoyl, 4-nitrobenzoyl, 2-hydroxybenzoyl, 4-(2'hydroxybenzoyl) benzoyl, 4-(2'-benzotriazoly)-2-hydroxybenzoyl, 4-aminobenzenesulfonyl, 4-nitrobenzene sulfonyl, 2-hydroxybenzenesulfonyl, 4-(2'-hydroxybenzoyl)benzenesulfonyl and 4-(2'benzotriazolyl)-2-hydroxybenzenesulfonyl; R represents an alkylene of from 2 to 18 carbon atoms; R' represents an alkyl group containing from 7 to 26 carbon atoms; R" represents an alkyl group containing 1 to 4 carbon atoms, the sum of R' and R" being not less than 9 carbon atoms and not greater than 27 carbon atoms; X is selected from the group consisting of Br, Cl, I, CH 2 H 5 SO 4 , CH 3 CO 2 , and CH 3 SO 4 ; and a skin compatible, non-toxic carrier which is compatible with said agent.
Claim 2
Dependent Claim
157 words
A sunscreening composition comprising from 0.1% to 25% by weight of a substantive sulfonium salt sunscreening agent represented by the formula ##STR25## wherein A is a substituted benzene sunscreening moiety having a prominent spectral absorption peak within the range of 250-400 millimicrons and selected from the group consisting of 4-aminobenzoyl, 4-nitrobenzoyl, 2-hydroxybenzoyl, 4-(2'hydroxybenzoyl) benzoyl, 4-(2'-benzotriazoly)-2-hydroxybenzoyl, 4-aminobenzenesulfonyl, 4-nitrobenzene sulfonyl, 2-hydroxybenzenesulfonyl, 4-(2'-hydroxybenzoyl)benzenesulfonyl and 4-(2'benzotriazolyl)-2-hydroxybenzenesulfonyl; R represents an alkylene of from 2 to 18 carbon atoms; R' represents an alkyl group containing from 7 to 26 carbon atoms; R" represents an alkyl group containing 1 to 4 carbon atoms, the sum of R' and R" being not less than 9 carbon atoms and not greater than 27 carbon atoms; X is selected from the group consisting of Br, Cl, I, CH 2 H 5 SO 4 , CH 3 CO 2 , and CH 3 SO 4 ; and a skin compatible, non-toxic carrier which is compatible with said agent.
Claim 3
Dependent Claim
18 words
A sunscreening composition in accordance with claim 1 wherein A is selected from the group consisting of ##STR26##
Claim 4
Dependent Claim
24 words
A sunscreening composition in accordance with claim 1 wherein A is selected from the group consisting of 4-aminobenzoyl, 4-nitrobenzoyl, 2-hydroxybenzoyl, 4-(2'-hydroxybenzoyl) benzoyl and 4-(2'benzotriazolyl)-2-hydroxybenzoyl.
Claim 5
Dependent Claim
12 words
A sunscreening composition in accordance with claim 3 wherein A is 4-aminobenzoyl.
Claim 6
Dependent Claim
12 words
A sunscreening composition in accordance with claim 3 wherein A is 4-(2'-hydroxybenzoyl)benzoyl.
Claim 7
Dependent Claim
12 words
A sunscreening composition in accordance with claim 3 wherein A is 4-(2'-benzotriazolyl)-2hydroxybenzoyl.
Claim 8
Dependent Claim
12 words
A sunscreening composition in accordance with claim 3 wherein A is 2-hydroxybenzoyl.
Claim 9
Dependent Claim
12 words
A sunscreening composition in accordance with claim 3 wherein A is 4-nitrobenzoyl.
Claim 10
Dependent Claim
23 words
A sunscreening composition in accordance with claim 1 wherein A is selected from the group consisting of 4-aminobenzene-sulfonyl, 4-nitrobenzenesulfonyl, 2-hydroxybenzenesulfonyl, 4-(2'-hydroxybenzoyl)benzenesulfonyl and 4-(2'benzotriazolyl)-2-hydroxybenzenesulfonyl.
Claim 11
Dependent Claim
12 words
A sunscreening composition in accordance with claim 9 wherein A is 4-aminobenzenesulfonyl.
Claim 12
Dependent Claim
12 words
A sunscreening composition in accordance with claim 9 wherein A is 2-hydroxybenzenesulfonyl.
Claim 13
Dependent Claim
12 words
A sunscreening composition in accordance with claim 9 wherein A is 4-(2'benzotriazolyl)-2-hydroxybenzenesulfonyl.
Claim 14
Dependent Claim
12 words
A sunscreening composition in accordance with claim 9 wherein A is 2-hydroxybenzenesulfonyl.
Claim 15
Dependent Claim
12 words
A sunscreening composition in accordance with claim 9 wherein A is 4-nitrobenzenesulfonyl.
Claim 16
Dependent Claim
28 words
A sunscreening composition in accordance with claim 1 wherein said carrier contains water and said composition is in the form of a solution, oil-in-water emulsion or water-in-oil emulsion.
Claim 17
Dependent Claim
40 words
A sunscreening composition according to claim 15 wherein the concentration of said sunscreening agent is about 1 to 10% by weight and said composition is a water-in-oil or oil-in-water emulsion which contains 23% to 32% by weight of mineral oil.
Claim 18
Dependent Claim
28 words
A sunscreening composition according to claim 15 wherein the concentration of substantive sunscreening agent is within the range of from about 1 to about 25 percent by weight.
Claim 19
Dependent Claim
16 words
A sunscreening composition according to claim 17 wherein said substantive sunscreening agent comprises 3-salicylamidopropyldodecylmethyl sulfonium bromide.
Claim 20
Dependent Claim
16 words
A sunscreening composition according to claim 17 wherein the substantive sunscreening agent comprises 3-salicylamidopropyloctylmethyl sulfonium bromide.
References Cited (Backward Citations)
US3864474A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-29 | 1981-02-28 | 1981-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-29 | 1985-02-28 | 1985-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-29 | 1989-02-28 | 1989-08-30 | $7700.00 | Window Closed / Lapsed |