Are there biosourced alternatives to phthalates in PVC?

Question: 
Are there biosourced alternatives to phthalates in PVC?
Réponse: 

It is possible, usually at higher costs, to replace phthalates with biobased alternatives, here is a non-exhaustive list:
• POLYSORB ID 37 from Roquette
• VIKOFLEX of the ARKEMA group
• Grindsted Soft-N-Safe from DANISCO