WATER- AND ACTIVE INGREDIENT-CONTAINING GEL
First Claim
1. A hydrogel comprising water, at least one gel former comprising gellan gum which consists of acylated linear chains with glucose, rhamnose and glucuronic acid units, at least one pharmaceutical active ingredient or cosmetic ingredient and, optionally, further auxiliaries and additives obtainable bya) mixing water and optionally included auxiliaries and additives which are present to form a mixture,b) adding the gel former to the mixture formed in step a) and homogenizing the resulting mixture,c) adding the pharmaceutical active ingredient or cosmetic ingredient and, optionally, ionic compounds which induce gel formation, to the homogenized mixture formed in step b) and homogenizing the resulting mixture,d) pouring out the homogenized mixture from step c) onto a support ande) cooling the poured mixture from step d) to form the hydrogel,where steps a) to d) are carried out at a temperature between 79 and 95°
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Accused Products
Abstract
The invention relates to a hydrogel formed from water, at least one gel former, at least one pharmaceutical active ingredient or cosmetic ingredient and, optionally, further auxiliaries and additives obtainable by a) mixing water and optionally including auxiliaries and additives when appropriate, b) adding the gel former and homogenizing the mixture, c) adding the pharmaceutical active ingredient or cosmetic ingredient and, optionally, ionic compounds which induce gel formation, and homogenizing the mixture, d) pouring out the mixture onto a support and e) cooling the mixture to form the hydrogel, where steps a) to d) are carried out at a temperature between 79 and 95° C. This hydrogel is suitable for administering cosmetic ingredients onto or via the skin or mucous membrane of a human, in particular in the form of a cosmetic face pack.
8 Citations
19 Claims
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1. A hydrogel comprising water, at least one gel former comprising gellan gum which consists of acylated linear chains with glucose, rhamnose and glucuronic acid units, at least one pharmaceutical active ingredient or cosmetic ingredient and, optionally, further auxiliaries and additives obtainable by
a) mixing water and optionally included auxiliaries and additives which are present to form a mixture, b) adding the gel former to the mixture formed in step a) and homogenizing the resulting mixture, c) adding the pharmaceutical active ingredient or cosmetic ingredient and, optionally, ionic compounds which induce gel formation, to the homogenized mixture formed in step b) and homogenizing the resulting mixture, d) pouring out the homogenized mixture from step c) onto a support and e) cooling the poured mixture from step d) to form the hydrogel, where steps a) to d) are carried out at a temperature between 79 and 95°
Specification
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- Resources
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Current AssigneeLTS Lohmann Therapie-Systeme AG
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Original AssigneeLTS Lohmann Therapie-Systeme AG
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InventorsHausen, Christian, Schnitzler, Iris, Roreger, Michael
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Application NumberUS12/673,046Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current424/401CPC Class CodesA61K 8/0212 Face masksA61K 8/042 GelsA61K 8/20 Halogens; Compounds thereofA61K 8/42 AmidesA61K 8/737 Galactomannans, e.g. guar; ...A61P 17/00 Drugs for dermatological di...A61Q 19/00 Preparations for care of th...
