Tetracarboxylic ester plasticizers
Tetraesters of a C 4 -C 5 aliphatic tetracarboxylic acid and OXO-alcohols and plasticized compositions containing said tetraesters are provided.
1. Tetraesters of an aliphatic tetracarboxylic acid and OXO-alcohols, wherein the ester moieties are mixed-isomer alkyl residues of C 5 Oxo-alcohols, and wherein the alkyl residues have from 0.3 to 0.4 beta branches per residue, and
wherein the tetracarboxylic acid is 1,2,3,4-butanetetracarboxylic acid.
2. The tetraesters of claim 1 , wherein the alkyl residues comprise a mixture of linear and branched alkyl groups.
3. The tetraesters of claim 1 , wherein the alkyl residues have from 0.2 to 3.0 total branches per residue.
4. A plasticizer compound of the formula:
wherein each R is the alkyl residue of C 5 OXO-alcohols, wherein collectively R represents mixed-isomer alkyl residues of C 5 OXO-alcohols and wherein the alkyl residues have from 0.3 to 0.4 beta branches per residue.
5. The plasticizer compound of claim 4 , wherein the alkyl residues comprise a mixture of linear and branched alkyl groups.
6. The plasticizer compound of claim 4 , wherein the alkyl residues have from 0.2 to 3.0 total branches per residue.
7. A plasticizer compound of the formula:
wherein each R is the alkyl residue of C 5 OXO-alcohols, and wherein the alkyl residues have from 0.3 to 0.4 beta branches per residue.
8. The plasticizer compound of claim 7 , wherein the alkyl residues comprise a mixture of linear and branched alkyl groups.
9. The plasticizer compound of claim 7 , wherein the alkyl residues have from 0.2 to 3.0 total branches per residue.
10. A composition comprising a polymer and a plasticizer of the formula:
wherein each R is the alkyl residue of C 5 OXO-alcohols, wherein collectively R represents mixed-isomer alkyl residues of C 5 OXO-alcohols and wherein the alkyl residues have from 0.3 to 0.4 beta branches per residue.
11. The composition of claim 10 , wherein the alkyl residues comprise a mixture of linear and branched alkyl groups.
12. The composition of claim 10 , wherein the alkyl residues have from 0.2 to 3.0 total branches per residue.
13. The composition of claim 10 , wherein the polymer is selected from the group consisting of vinyl chloride resins, polyesters, polyurethanes, ethylene-vinyl acetate copolymer, rubbers, poly(meth)acrylics and combinations thereof.
14. The composition of claim 13 , wherein the polymer is polyvinylchloride.