Additives and products including oligoesters
AssigneeCroda, Inc.
InventorsAbel G. Pereira, Helena S. Barinova, Christopher Westergom
Life of this patent
Estimating the term…
Abstract
The present invention relates to oligoesters and their use or the creation of additives. Oligoester containing additives and/or oligoesters themselves may be used for formulating pharmaceutical preparations, cosmetics or personal care products such as shampoos and conditioners. These oligoesters are particularly useful for the creation of multi-purpose additives that can impart conditioning, long substantivity and/or UV protection. Individual oligoesters and oligoester mixtures are described.
Claims79
An additive for pharmaceutical, cosmetic or personal care product comprising:
- a) a pharmaceutically or cosmetically-acceptable solvent;
- and
- b) an oligoester including at least two structural units, each structural unit having a diol fragment and a diacid fragment attached to one another by an ester linkage, at least one of said fragments containing a tertiary or quaternary nitrogen atom;
- said structural units defining a backbone extending through said ester linkages and said tertiary or quaternary nitrogen atoms,
- said oligoester being present in the amount of from about 0.01% to 99.0% by weight of said additive.
A pharmaceutical, cosmetic or personal care product comprising:
- a pharmaceutically or cosmetically-acceptable solvent;
- an oligoester including at least two structural units, each structural unit having a diol fragment and a diacid fragment attached to one another by an ester linkage, at least one of said fragments containing a tertiary or quaternary nitrogen atom, said structural units defining a backbone extending through said ester linkages and said tertiary or quaternary nitrogen atoms, said oligoester being present in the amount of from about 0.01% to 99.0% by weight based on the combine weight of said oligoester and said solvent;
- and at least one active or additional ingredient, provided in an amount which is effective for its intended use.
An oligoester:
- comprising, at least two structural units, each structural unit having a diol fragment and a diacid fragment attached to one another by an ester linkage, at least one of said fragments containing a tertiary or quaternary nitrogen atom;
- said structural units defining a backbone extending through said ester linkages and said tertiary or quaternary nitrogen atoms.
Dependencies are inferred from the claim text.