Patent US961100A successfully refreshed from Google Patents.
Patent US5045559A successfully refreshed from Google Patents.
US5045559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of skin disorders
Assignee: Unilever Patent Holdings BV
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Filing: 1989-05-15
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Granted: 1991-09-03
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Expires: 2009-05-15
Abstract
Abstract A therapeutic composition for the treatment of skin disorders comprises a therapeutically effective amount of a curative agent chosen from special esters of pyroglutamic acid, and mixtures thereof, in a therapeutically acceptable vehicle for topical application.
Inventors
- 👤 Ian R. Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:59
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/40; A61K8/00; A61K8/18; A61K8/30; A61K8/49; A61K8/4906; A61K8/4913; A61P; A61P17/00; A61Q; A61Q19/00; A61Q19/008; A61Q5/00; A61Q5/006; A61Q7/00; A61K2800/00; A61K2800/20; A61K2800/28
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
230 words
A method for the treatment of a skin disorder in man and other mammals selected from the group consisting of: Ichthyosiform dermatoses, Conradi's syndrome, Localised hyperkeratotic conditions, Dandruff, Callous-forming disorders, Psoriasis, Eczema, Xerosis, Warts, Dermatomycoses, Pityriasis rosea and Pityriasis alba, Lichen planus and Lichen simplex chronicus, Cicatricial alopecia with dry flaky scalp, Darier's disease, Pruritus, Seborrhoeic dermatitis, Seborrhoeic eczema, Acne, and Scabies, said method comprising applying to involved areas of the body a composition comprising: (i) an effective amount of an ester of pyroglutamic acid having the structure: ##STR4## where R is a group: ##STR5## ##STR6## where R' and R" are the same or different and are each represented by H or the group: [(CH.sub.3).sub.u,(CH.sub.2 OH).sub.v, (CH.sub.2).sub.w,(CHCH.sub.3).sub.x,(CHOH).sub.y,(CH═CH).sub.z]--( 2) where either u or v is 1 and the other of them is zero w is zero, or an integer of from 1 to 21 x is zero, or an integer of from 1 to 4 y is zero, or an integer of from 1 to 2 z is zero, or an integer of from 1 to 4; and u+v+w+x+y+z is an integer of from 1 to 22 the subgroups within the group (2) being in any sequence provided that when the subgroup (CH═CH) is present, then the total number of carbon atoms in said group (2) will be from 10 to 22; and (ii) a therapeutically acceptable vehicle for the ester.
Claim 2
Independent Claim
230 words
A method for the treatment of a skin disorder in man and other mammals selected from the group consisting of: Ichthyosiform dermatoses, Conradi's syndrome, Localised hyperkeratotic conditions, Dandruff, Callous-forming disorders, Psoriasis, Eczema, Xerosis, Warts, Dermatomycoses, Pityriasis rosea and Pityriasis alba, Lichen planus and Lichen simplex chronicus, Cicatricial alopecia with dry flaky scalp, Darier's disease, Pruritus, Seborrhoeic dermatitis, Seborrhoeic eczema, Acne, and Scabies, said method comprising applying to involved areas of the body a composition comprising: (i) an effective amount of an ester of pyroglutamic acid having the structure: ##STR4## where R is a group: ##STR5## ##STR6## where R' and R" are the same or different and are each represented by H or the group: [(CH.sub.3).sub.u,(CH.sub.2 OH).sub.v, (CH.sub.2).sub.w,(CHCH.sub.3).sub.x,(CHOH).sub.y,(CH═CH).sub.z]--( 2) where either u or v is 1 and the other of them is zero w is zero, or an integer of from 1 to 21 x is zero, or an integer of from 1 to 4 y is zero, or an integer of from 1 to 2 z is zero, or an integer of from 1 to 4; and u+v+w+x+y+z is an integer of from 1 to 22 the subgroups within the group (2) being in any sequence provided that when the subgroup (CH═CH) is present, then the total number of carbon atoms in said group (2) will be from 10 to 22; and (ii) a therapeutically acceptable vehicle for the ester.
Claim 3
Dependent Claim
17 words
The method of claim 1, wherein the Ichthyosiform dermatoses are: Ichthyosis vulgaris, Sex-linked ichthyosis, or Epidermolytic ichthyosis.
Claim 4
Dependent Claim
20 words
The method of claim 1, wherein the localised hyperkeratolytic conditions are: Keratosis pilaris, Keratosis punctata, Keratosis senilis, or Keratosis striata.
Claim 5
Dependent Claim
20 words
The method of claim 1, wherein the callous-forming disorders are: Palmar and Plantar hyperkeratosis, Corns, or Palmar and Plantar keratoderma.
Claim 6
Dependent Claim
19 words
The method of claim 1, wherein the warts are: Keratotic warts, warts associated with Herpes, Keratoacanthoma or Warty naevus.
Claim 7
Dependent Claim
11 words
The method of claim 1, wherein the Dermatomyces is Tinea pedis.
Claim 8
Dependent Claim
51 words
The method of claim 1, wherein the ester of pyroglumatic acid is selected from the group consisting of: 2-[pyroglutamoyloxy]-propionic acid, methyl-2-[pyroglutamoyloxy]-acetate, ethyl-2-[pyroglutamoyloxy]-propionate, ethyl-2-[pyroglutamoyloxy]-n-butyrate, ethyl-2-[pyroglutamoyloxy]-n-iso-butyrate, ethyl-2-[pyroglutamoyloxy]-n-valerate, ethyl-2-[pyroglutamoyloxy]-n-caproate, ethyl-2-[pyroglutamoyloxy]-n-heptylate, ethyl-2-[pyroglutamoyloxy]-n-caprylate, ethyl-2-[pyroglutamoyloxy]-n-perlargonate, ethyl-2-[pyroglutamoyloxy]-3-hydroxybutyrate, iso-propyl-2-[pyroglutamoyloxy]-propionate, iso-propyl-2-[pyroglutamoyloxy]-n-caprylate, n-propyl-2-[pyroglutamoyloxy]-n-propionate, n-propyl-2-[pyroglutamoyloxy]-n-caprylate, lauryl-2-[pyroglutamoyloxy]-n-caprylate, stearyl-2-[pyroglutamoyloxy]-n-caprylate, stearyl-2-[pyroglutamoyloxy]-propionate, 12-hydroxystearyl-1-[pyroglutamoyloxy]-n-propionate, stearyl-2-[pyroglutamoyloxy]-stearate, palmityl-2-[pyroglutamoyloxy]-n-propionate, linoleyl-2-[pyroglutamoyloxy]-n-propionate, linoleyl-2-[pyroglutamoyloxy]-n-caprylate, glyceryl mono(2-[pyroglutamoyloxy]-n-propionate), glyceryl mono(2-[pyroglutamoyloxy]-n-caprylate), glyceryl di(2-[pyroglutamoyloxy]-n-propionate), and mixtures thereof.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1994-09-02 | 1995-03-04 | 1995-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-02 | 1999-03-04 | 1999-09-03 | $3760.00 | Window Closed / Lapsed |
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