CA2283517A1 — Use of low molecular oligomer esters of .alpha.-hydroxy acids and/or aromatic of o-hydroxy acids in cosmetic formulations
Assigned to Merck Patent GmbH · Expires 1998-10-15 · 28y expired
What this patent protects
The invention relates to the use of low molecular oligomer esters of .alpha.hydroxy acids and/or aromatic o-hydroxy acids in cosmetic formulations, wherein the corresponding .alpha.-hydroxy acid and/or aromatic o-hydroxy acid is controllably released by hydrolysis during use.
USPTO Abstract
The invention relates to the use of low molecular oligomer esters of .alpha.hydroxy acids and/or aromatic o-hydroxy acids in cosmetic formulations, wherein the corresponding .alpha.-hydroxy acid and/or aromatic o-hydroxy acid is controllably released by hydrolysis during use.
Drugs covered by this patent
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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