Back to results
US 2003/0120104 A1Published application
Glycerin triester plasticizer
AssigneeFerro Corporation
InventorsLei Zhou, George Schaefer
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeFerro Corporation
InventorsLei Zhou, George Schaefer
Estimating the term…
The present invention provides a phthalate-free plasticizer for polymer resins. The phthalate-free plasticizer according to the invention includes a mixture of different triesters of glycerin, at least one of which meets the formula: CH2(OOR1)CH(OOR2)CH2(OOR3) wherein at least two of R1, R2, and R3 are different alkyl or aryl groups. Phthalate-free plasticizers according to the invention can be made by esterifying glycerin with a mixture of acids in the presence of a catalyst. In the presently most preferred embodiment of the invention, the mixture of acids includes benzoic acid and butanoic acid. The plasticizer according to the invention can be used to modify the properties of a wide variety of polymers including vinyl polymers, rubbers, polyurethanes, and acrylics, and has superb thermostability and low volatility.
A phthalate-free plasticizer for polymer resins comprising a mixture of different triesters of glycerin, wherein said mixture of different triesters of glycerin comprises at least two selected from the group consisting of glyceryl [1,2] bisbutanoate benzoate, glyceryl [1,3] bisbutanoate benzoate, glyceryl [1,2] bisbenzoate butanoate, and glyceryl [1,3] bisbenzoate butanoate.
A phthalate-free plasticizer for polymer resins formed by the process of esterifying glycerin with a mixture comprising at least two different acids selected from the group consisting of aryl carboxylic acids, acetic acid, bromoacetic acid, propanoic acid, 2-chloropropanoic acid, 3-chloropropanoic acid, butanoic acid, 2-methylpropanoic acid, pentanoic acid, 2-ethylpropanoic acid, 2-methylbutanoic acid, 3-methylbutanoic acid, hexanoic acid, 2-ethylbutanoic acid, 2,2-dimethylbutanoic acid, 2,3-dimethylbutanoic acid, 3,3-dimethylbutanoic acid, 2-methylpentanoic acid, 3-methylpentanoic acid, 4-methylpentanoic acid, cyclopentyl acetic acid, cyclopentyl propanoic acid, cyclopentyl hexanoic acid, cyclohexane carboxylic acid, cyclohexane acetic acid, 2-ethylhexanoic acid, nonadecafluorodecanoic acid, decanoic acid, and undecanoic acid to form a mixture of different triesters of glycerin, at least one of which meets the formula CH2(OOR1)CH(OOR2)CH2(OOR3), wherein at least two of R1, R2, and R3 are different alkyl or aryl groups.
Dependencies are inferred from the claim text.