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US 12,692,365 B2Granted
Tetraisopentyl esters of butanetetracarboxylic acid, production thereof and use thereof as plasticizers
AssigneeEvonik Oxeno GmbH
InventorsImke Schulz, Michael Woelk-Fährmann, Michael Grass, Stephan Becker, Michael van Eickels
Life of this patent
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Abstract
Tetraisopentyl esters of butanetetracarboxylic acid are useful as plasticizers or as part of a plasticizer composition for polymers. A process for the production thereof, plasticizer compositions containing the tetraisopentyl esters of butanetetracarboxylic acid, and plastics compositions containing the tetraisopentyl esters of butanetetracarboxylic acid are also provided.
Claims17
A mixture, comprising:
- tetraisopentyl esters of 1,2,3,4-butanetetracarboxylic acid,
- wherein 6 to 12 mol % of isopentyl radicals in the mixture are 2-methylbutyl radicals, 88 to 94 mol % of the isopentyl radicals in the mixture are n-pentyl radicals, and 0 to 4 mol % of the isopentyl radicals in the mixture are 3-methylbutyl radicals.
Dependencies are inferred from the claim text.