| abstract |
The present invention relates to processes for preparing a nanocomposite comprising: n a. preparing an organoclay material by reacting a swellable layered clay with an onium ion represented by Formula (I): n n n  wherein n i) M is nitrogen or phosphorus, n ii) R 1 is a straight or branched alkyl group having at least 8 carbon atoms, n iii) R 2 , R 3 , and R 4 are independently selected from organic or oligomeric ligands or hydrogen, and n iv) at least one of R 2 , R 3 , and R 4 comprises an alkylene oxide group having from 2 to 6 carbon atoms or a polyalkylene oxide group, and n b. melt mixing the organoclay material with an expanding agent, and n c. melt extruding the expanded organoclay and a polymer to provide a nanocomposite. |