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US 2024/0182632 A1Published application
Polymer comprising long chain hydroxy acids
AssigneeEvonik Operations GmbH
InventorsTim SMOLNIK, Erik KERSTEN, Rolf SCHNEIDER
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AssigneeEvonik Operations GmbH
InventorsTim SMOLNIK, Erik KERSTEN, Rolf SCHNEIDER
Estimating the term…
A process for preparing a polymer from a 3-hydroxy carboxylic acid as monomer comprising at least 8 carbon atoms where the polymerisation reaction is conducted at a temperature of from 100° C. to 180° C. while removing water from the reaction mixture, wherein 50 to 100 mol-% of the monomers used are 3-hydroxy carboxylic acids comprising at least 8 carbon atoms. A polymer comprising units based on 3-hydroxy carboxylic acid, comprising at least 8 carbon atoms, characterized in that of from 60 to 100 mol-% of the units are based on beta-hydroxy carboxylic acids, comprising at least 8 carbon atoms and films, foils, flexible packaging, and barrier coatings comprised of said polymers.
A process for preparing a polymer from at least one 3-hydroxy carboxylic acid as monomer characterized in that the 3-hydroxy carboxylic acid comprises at least 8 carbon atoms, preferably of from 10 to 24 carbon atoms and that the polymerisation reaction is conducted at a temperature of from 100° C. to 180° C., preferably of from 110° C. to 140° C. while removing water from the reaction mixture, and wherein 50 to 100 mol-% of the monomers used are 3-hydroxy carboxylic acids comprising at least 8 carbon atoms.
Mixture comprising dimers of 3-hydroxy carboxylic acid, characterized in that it comprises of from 50 to 80 parts by weight 3-hydroxy decanoic acid dimer (D-C10-C10), of from 5 to 15 parts by weight dimer obtained from 3-hydroxy decanoic acid and 3-hydroxy octanoic acid (D-C8-C10), of from 5 to 15 parts by weight hydroxy decanoic acid, of from 1 to 10 parts by weight dimer obtained from 3-hydroxy decanoic acid and 3-hydroxy dodecanoic acid (D-C10-C12) and of from 1 to 10 parts by weight dimer obtained from 3-hydroxy decanoic acid and 3-hydroxy dodecenoic acid (D-C10-C12:1).
A polymer comprising units based on 3-hydroxy carboxylic acid, comprising at least 8 carbon atoms, characterized in that of from 60 to 100 mol-% of the units are based on beta-hydroxy carboxylic acids, comprising at least 8 carbon atoms.
Dependencies are inferred from the claim text.