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AssigneeCelanese International Corporation
InventorsAujke van Kooij, Sylvia Nefkens, Brigitte Beringer-Molenaar
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A process for making sorbic acid from renewable materials is provided. The process comprises converting acetic acid to ketene; converting acetaldehyde to crotonaldehyde; reacting the ketene with the crotonaldehyde to produce a polyester; and converting the polyester to sorbic acid. Renewable materials are incorporated by one of the following methods: a) the acetic acid is produced by reacting methanol derived from renewable organic material with carbon monoxide, b) the acetic acid is a biobased acetic acid, c) the crotonaldehyde is a biobased crotonaldehyde, d) the crotonaldehyde is produced by converting a biobased acetaldehyde to crotonaldehyde, e) the crotonaldehyde is produced by converting acetaldehyde to crotonaldehyde and the acetaldehyde is produced from bioethylene, or any combination of a), b), c), d) and e).
A process for making sorbic acid from renewable materials, the process comprising:
A process for making sorbic acid from renewable materials, the process comprising:
A food, feed, pharmaceutical, personal care, or household cleaning product containing a preservative comprising sorbic acid or an alkali metal salt of sorbic acid, wherein about 15% or more of the carbon content in the sorbic acid or the alkali metal salt of sorbic acid is biobased, as determined by a mass balance using carbon counting or by physical analysis carried out according to ASTM D6866-21.
Dependencies are inferred from the claim text.