Mixtures containing trimellitic acid ester and polyether polyol ester as plasticizers, use of the mixtures for producing polymer compounds and PVC materials containing said mixtures
View Patent ↗A mixture useful as plasticizer comprises trimellitic esters and polyether polyol esters, characterized in that the mixture comprises from 1 to 99% by weight of trimellitic esters and 99 to 1% by weight of polyether polyol esters, wherein the polyether polyol esters can be derived from linear or branched, aliphatic monocarboxylic acids having 3 to 20 carbon atoms in the molecule.
1. A mixture comprising trimellitic esters and polyether polyol ester, characterized in that the mixture comprises from more than 84.5% up to 99% by weight of trimellitic esters and 1% up to less than 15.5% by weight of a polyether polyol ester, wherein the polyether polyol ester is triethylene glycol di-2-ethylhexanoate and further characterized in that trimellitic esters are selected from tri(2-ethylhexyl) trimellitate, tri(n-octyl, n-decyl) trimellitate, tri(heptyl, nonyl) trimellitate, tri(n-octyl) trimellitate, tri(isononyl) trimellitate, tri(isodecyl) trimellitate or mixtures thereof.
2. A mixture according to claim 1 , characterized in that the mixture consists of tri(2-ethylhexyl) trimellitate and triethylene glycol di-2-ethylhexanoate.
3. A mixture according to claim 1 , characterized in that the mixture has a viscosity of <300 mm 2 /s at 20° C. and <80 mm 2 /s at 40° C.
4. PVC materials comprising the mixture according to claim 1 , characterized in that the PVC materials have a glass transition temperature of <20° C.
5. PVC materials comprising the mixture according to claim 1 , characterized in that the PVC materials have a fogging number of at least 60.
6. A method of using the mixture according to claim 1 comprising incorporating the mixture into polymer compositions comprising a polymer and the mixture, said compositions having a Shore A hardness of <90.
7. A method of using the mixture according to claim 1 comprising incorporating the mixture into a product selected from the group consisting of: polymer compounds; masterbatches; semifinished products and finished products.
8. The method according to claim 7 , wherein the product comprises PVC.
9. The method according to claim 8 , wherein the mixture consists of tri(2-ethylhexyl) trimellitate and triethylene glycol di-2-ethylhexanoate.
10. A product comprising PVC and provided with a mixture comprising from more than 84.5% up to 99% by weight of trimellitic esters and 1% up to less than 15.5% by weight of a polyether polyol ester, wherein the polyether polyol ester is triethylene glycol di-2-ethylhexanoate, wherein the trimellitic esters are selected from tri(2-ethylhexyl) trimellitate, tri(n-octyl, n-decyl) trimellitate, tri(heptyl, nonyl) trimellitate, tri(n-octyl) trimellitate, tri(isononyl) trimellitate, tri(isodecyl) trimellitate or mixtures thereof.
11. The product according to claim 10 , characterized in that the mixture consists of tri(2-ethylhexyl) trimellitate and triethylene glycol di-2-ethylhexanoate.