US4002733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sunscreening compositions
Assignee: 3M Co
•
Filing: 1974-07-26
•
Granted: 1977-01-11
•
Expires: 1994-07-26
Abstract
Abstract Sunscreening compositions are disclosed which comprise a pharmaceutical extending medium having incorporated therein a substantive, dermally non-irritating, ultraviolet light absorbing compound which is a polyfunctional organic molecule containing two or more ultraviolet absorbing moieties connected by two or more polar linking groups to one or more aliphatic bridging groups. These sunscreening compositions are resistant to removal by water and mild abrasion but are readily removed by soap and water.
Inventors
- 👤 Peter John Degen
- 👤 Anthony James Lucas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:34
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/42; A61K8/44; A61K8/445; A61K8/49; A61K8/4973; A61K8/498; A61Q; A61Q17/00; A61Q17/04; C07C; C07C275/00; C07C275/28; C07C275/38; C07C275/42; C07D; C07D277/00; C07D277/60; C07D277/62; C07D277/64; C07D277/66; C07D311/00; C07D311/02; C07D311/04; C07D311/06; C07D311/08; C07D311/16
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
147 words
In a sunscreening composition comprising a pharmaceutical extending medium and an effective sunscreening amount of a dermally non-irritating, ultraviolet light-absorbing compound, the improvement wherein the dermally non-irritating, ultraviolet light-absorbing compound is a substantive compound of the formula (XE).sub.n --R--(AY).sub.n one wherein R is the aliphatic portion of polymerized 18 carbon fatty acids and contains 36, 54, 72, 90 or 108 carbon atoms; A and E are independently ##STR66## X and Y are aromatic, ultraviolet light absorbing moieties characterized by ultraviolet light absorption maxima in the range of 280 nm to about 360 nm, and when n + n 1 is greater than 2, Y may be hydrogen or an alkyl radical containing 1 to 6 carbon atoms; n and n 1 are independently integers from 1 to 6 designating different or the same (XE) and (AY) respectively, except n + n 1 must equal 2 - 6.
Claim 2
Dependent Claim
147 words
In a sunscreening composition comprising a pharmaceutical extending medium and an effective sunscreening amount of a dermally non-irritating, ultraviolet light-absorbing compound, the improvement wherein the dermally non-irritating, ultraviolet light-absorbing compound is a substantive compound of the formula (XE).sub.n --R--(AY).sub.n one wherein R is the aliphatic portion of polymerized 18 carbon fatty acids and contains 36, 54, 72, 90 or 108 carbon atoms; A and E are independently ##STR66## X and Y are aromatic, ultraviolet light absorbing moieties characterized by ultraviolet light absorption maxima in the range of 280 nm to about 360 nm, and when n + n 1 is greater than 2, Y may be hydrogen or an alkyl radical containing 1 to 6 carbon atoms; n and n 1 are independently integers from 1 to 6 designating different or the same (XE) and (AY) respectively, except n + n 1 must equal 2 - 6.
Claim 3
Dependent Claim
13 words
A composition according to claim 1 wherein X and Y are independently ##STR67##
Claim 4
Dependent Claim
19 words
A composition according to claim 2 wherein n and n' are each one and R contains 36 carbon atoms.
Claim 5
Dependent Claim
16 words
A composition according to claim 3 wherein the substantive, dermally non-irritating, ultraviolet light-absorbing compound is ##STR68##
Claim 6
Dependent Claim
15 words
A composition according to claim 3 wherein the substantive, dermally non-irritating, ultravioletlight-absorbing compound is ##STR69##
Claim 7
Dependent Claim
16 words
A composition according to claim 3 wherein the substantive, dermally non-irritation, ultraviolet light-absorbing compound is ##STR70##
Claim 8
Dependent Claim
16 words
A composition according to claim 3 wherein the substantive, dermally non-irritating, ultraviolet light-absorbing compound is ##STR71##
Claim 9
Dependent Claim
15 words
A composition according to claim 3 wherein the substantive, dermally non-irritating, ultraviolet light-absorbing compound ##STR72##
Claim 10
Dependent Claim
16 words
A composition according to claim 3 wherein the substantive, dermally non-irritating, ultraviolet light-absorbing compound is ##STR73##
Claim 11
Dependent Claim
16 words
A composition according to claim 3 wherein the substantive, dermally non-irritating, ultraviolet light-absorbing compound is ##STR74##
Claim 12
Dependent Claim
16 words
A composition according to claim 3 wherein the substantive, dermally non-irritating, ultraviolet light-absorbing compound is ##STR75##
Claim 13
Dependent Claim
144 words
In a sunscreening composition comprising a pharmaceutical extending medium and an effective sunscreening amount of a dermally non-irritating, ultraviolet light-absorbing compound, the improvement wherein the dermally non-irritating, ultraviolet light-absorbing compound is a substantive compound of the formula (XE).sub.n --R--(AY).sub.n one wherein R is the aliphatic portion of polymerized 18 carbon fatty acids and contains 36, 54, 72, 90 and 108 carbon atoms; A and E are ##STR76## X and Y are aromatic, ultraviolet light absorbing moieties characterized by ultraviolet light absorption maxima in the range of 280 nm to about 360 nm, and when n + n 1 is greater than 2, Y may be hydrogen or an alkyl radical containing 1 to 6 carbon atoms; n and n 1 are independently integers from 1 to 6 designating different or the same (XE) and (AY) respectively, except n + n 1 must equal 2-6.
Claim 14
Dependent Claim
144 words
In a sunscreening composition comprising a pharmaceutical extending medium and an effective sunscreening amount of a dermally non-irritating, ultraviolet light-absorbing compound, the improvement wherein the dermally non-irritating, ultraviolet light-absorbing compound is a substantive compound of the formula (XE).sub.n --R--(AY).sub.n one wherein R is the aliphatic portion of polymerized 18 carbon fatty acids and contains 36, 54, 72, 90 and 108 carbon atoms; A and E are ##STR76## X and Y are aromatic, ultraviolet light absorbing moieties characterized by ultraviolet light absorption maxima in the range of 280 nm to about 360 nm, and when n + n 1 is greater than 2, Y may be hydrogen or an alkyl radical containing 1 to 6 carbon atoms; n and n 1 are independently integers from 1 to 6 designating different or the same (XE) and (AY) respectively, except n + n 1 must equal 2-6.
Claim 15
Dependent Claim
115 words
An ultraviolet light-absorbing compound of the formula (XE).sub.n --R--(AY).sub.n one wherein R is the aliphatic portion of polymerized 18 carbon fatty acids and contains 36, 54, 72, 90 or 108 carbon atoms; A and E are independently ##STR77## X and Y are aromatic, ultraviolet light absorbing moieties characterized by ultraviolet light absorption maxima in the range of 280 nm to about 360 nm, and when n + n 1 is greater than 2, Y may be hydrogen or an alkyl radical containing 1 to 6 carbon atoms; n and n 1 are independently integers from 1 to 6 designating the same or different (XE) and (AY) respectively, except n + n 1 must equal 2-6.
Claim 16
Dependent Claim
115 words
An ultraviolet light-absorbing compound of the formula (XE).sub.n --R--(AY).sub.n one wherein R is the aliphatic portion of polymerized 18 carbon fatty acids and contains 36, 54, 72, 90 or 108 carbon atoms; A and E are independently ##STR77## X and Y are aromatic, ultraviolet light absorbing moieties characterized by ultraviolet light absorption maxima in the range of 280 nm to about 360 nm, and when n + n 1 is greater than 2, Y may be hydrogen or an alkyl radical containing 1 to 6 carbon atoms; n and n 1 are independently integers from 1 to 6 designating the same or different (XE) and (AY) respectively, except n + n 1 must equal 2-6.
Claim 17
Dependent Claim
18 words
A compound according to claim 13 wherein n and n'are each 1 and R contains 36 carbon atoms.
Claim 18
Dependent Claim
7 words
The compound ##STR78## according to claim 14.
Claim 19
Dependent Claim
7 words
The compound ##STR79## according to claim 14.
Claim 20
Dependent Claim
7 words
The compound ##STR80## according to claim 14.
Claim 21
Dependent Claim
7 words
The compound ##STR81## according to claim 14.
Claim 22
Dependent Claim
7 words
The compound ##STR82## according to claim 14.
Claim 23
Dependent Claim
7 words
The compound ##STR83## according to claim 14.
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) | 1980-01-11 | 1980-07-12 | 1981-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-11 | 1984-07-12 | 1985-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-11 | 1988-07-12 | 1989-01-11 | $7700.00 | Window Closed / Lapsed |