Patent US4600539A successfully refreshed from Google Patents.
US4600539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
O/W Emulsifiers for cosmetic purposes
Assignee: Beiersdorf AG
•
Filing: 1984-10-15
•
Granted: 1986-07-15
•
Expires: 2004-10-15
Abstract
Abstract The invention relates to novel O/W emulsifiers obtainable by reacting one mole of esters of wool wax acids and glycerol, in particular partial esters, with 0.5 to 30 moles of ethylene oxide, a process for the preparation of these novel products and cosmetic agents containing these in an amount of 1 to 15% by weight, based on the total formulation.
Inventors
- 👤 Udo Hoppe
- 👤 Jochen M. Quack
- 👤 Alwin Reng
- 👤 Herbert Stuhler
- 👤 Klaus-Peter Wittern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:49
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/06; A61K8/062; A61K8/18; A61K8/92; A61K8/925; A61Q; A61Q19/00; C; C07; C07C; C07C67/00; C07C67/28; C07C67/29; A61Q17/00; A61Q17/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
34 words
A novel O/W emulsifier for cosmetic purposes based on polyethoxylated wool wax derivatives obtainable by reacting one mole of esters of wool wax acids and glycerol with 0.5 to 30 moles of ethylene oxide.
Claim 2
Dependent Claim
34 words
A novel O/W emulsifier for cosmetic purposes based on polyethoxylated wool wax derivatives obtainable by reacting one mole of esters of wool wax acids and glycerol with 0.5 to 30 moles of ethylene oxide.
Claim 3
Dependent Claim
14 words
A novel O/W emulsifier of claim 1 wherein the esters reacted are partial esters.
Claim 4
Dependent Claim
14 words
An emulsifier of claim 2 wherein 2 to 15 moles ethylene oxide are reacted.
Claim 5
Dependent Claim
33 words
A cosmetic agent which contains, in addition to the pharmaceutically-acceptable carrier- and additive-materials, 1 to 15% by weight, based on the total formulation, of at least one compound as claimed in claim 1.
Claim 6
Dependent Claim
28 words
A cosmetic agent of claim 4 which contains 2 to 6% by weight, based on the total formulation, of at least one compound as claimed in claim 4.
Claim 7
Dependent Claim
41 words
A cosmetic agent of claim 4 where the pharmaceutically-acceptable carrier- and additive-materials are selected from the group consisting of fatty alcohols with 12 to 18 carbon atoms, medium-chain triglycerides, ester-like compounds, 1,2-propylenglycol, mineral oil, triethanolamine, antioxidants, preservatives, perfumes and light stabilizers.
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) | 1989-07-14 | 1990-01-13 | 1990-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-14 | 1994-01-13 | 1994-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-14 | 1998-01-13 | 1998-07-15 | $7700.00 | Window Closed / Lapsed |