US 11,932,749 B2
Plasticizer composition comprising tripentyl esters of 1,2,4-cyclohexanetricarboxylic acid
Michael Grass, Haltern am See (DE); Florian Boeck, Witten (DE); and Benjamin Woldt, Suedlohn (DE)
Assigned to Evonik Oxeno GmbH & Co. KG, Marl (DE)
Filed by Evonik Oxeno GmBH & Co. KG, Marl (DE)
Filed on Jun. 14, 2022, as Appl. No. 17/806,915.
Claims priority of application No. 21179453 (EP), filed on Jun. 15, 2021.
Prior Publication US 2022/0411604 A1, Dec. 29, 2022
Int. Cl. C08K 5/12 (2006.01); C08K 5/00 (2006.01)
CPC C08K 5/12 (2013.01) [C08K 5/0016 (2013.01)] 17 Claims
 
1. A plasticizer composition, comprising consisting of:
at least one compound according to the following formula (I)

OG Complex Work Unit Chemistry
wherein the radicals R1, R2 and R3 are each independently selected from the group consisting of n-pentyl, 2-methylbutyl, and 3-methylbutyl,
wherein the at least one compound according to the formula (I) consists of a mixture of compounds according to the formula (I),
wherein the mixture comprises one radical selected from the group consisting of n-pentyl, 2-methylbutyl, and 3-methylbutyl at a proportion of 30 to 95 mol %, and one other radical or two other radicals from the group specified at a proportion of 5 to 70 mol %, based in each case on a total amount of all radicals R1, R2 and R3 of the at least one compound according to the formula (I), and
at least one further plasticizer selected from the group consisting of alkyl benzoates, dialkyl adipates, glycerol esters, trialkyl citrates, acylated trialkyl citrates, glycol dibenzoates, trialkyl esters of trimellitic acid, dialkyl terephthalates, dialkyl phthalates, esters of furandicarboxylic acid, dialkanoyl esters of dianhydrohexitols, epoxidized fatty acid alkyl esters, polymer plasticizers, and dialkyl esters of 1,2-, 1,3- or 1,4-cyclohexanedicarboxylic acid.