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US 2017/0319478 A1Published application
Excipient Suitable for Preparing Creams
OwnerJohan VAN DAELEinventor
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Abstract
An excipient, suitable for the preparation of pharmaceutical and/or cosmetic creams comprises an aqueous phase and organic phase comprising organic components. The components comprise natural or synthetic oil, one or more waxes, one or more organic esters. Each of the general formula R1 COO R2, wherein R1 and R2 are both, independently of one another, is a linear or branched alkyl group having 15 to 30 carbon atoms and sorbitan esters.
Claims21
1-28. (canceled)
Excipient, suitable for the preparation of pharmaceutical and/or cosmetic creams, which excipient comprises:
- 10 to 73% by weight of aqueous phase which comprises the following components:
- 0.01% by weight to 2.25% by weight of preservative;
- 97.75% by weight to 99.99% by weight of purified water;
- organic phase comprising the organic components
- natural and/or synthetic oils and/or fats;
- 1% by weight to 15% by weight of one or more waxes;
- 1% by weight to 15% by weight of one or more organic esters, each of the general formula R1-COO—R2, wherein R1 and R2 are both, independently of one another, a linear or branched alkyl group having 11 to 30 carbon atoms;
- 1% by weight to 8% by weight of sorbitan esters;
- which percentages by weight of the components of the aqueous phase are expressed as the weight of the component over the total weight of the aqueous phase, the percentages by weight of the components of the organic phase being expressed as the weight of the component over the total weight of the excipient and the percentage by weight of the aqueous phase being expressed as the weight of the aqueous phase over the total weight of the excipient, wherein the excipient is a water-in-oil emulsion.
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Dependencies are inferred from the claim text.