Method for recovery of methyl methacrylate from mixed...

Details Method for recovery of methyl methacrylate from mixed... Method for recovery of methyl methacrylate from mixed...

C - Chemistry, Metallurgy

07

C

260/482.4, 260/4

C07C 67/48 (2006.01) C07C 69/54 (2006.01) C08J 11/08 (2006.01)

Patent

CA 1039303

ABSTRACT OF THE DISCLOSURE A method for recovering methyl methacrylate from a mixture of polymeric materials containing poly (methyl meth- acrylate) which comprises contacting the mixture with a boiling C5 - C8 alkane, separating an insoluble residue containing poly (methyl methacrylate) from the alkane and its extract, extract- ing poly (methyl methacrylate) from such insoluble residue with boiling acetone, separating the poly (methyl methacrylate) from the acetone, and recovering the methyl methacrylate monomer from such poly (methyl methacrylate) by pyrolysis. In a pre- ferred embodiment, the poly (methyl methacrylate) containing solid obtained after the acetone extraction is compressed under elevated temperatures and pressures prior to pyrolysis. The method can be stopped prior to the pyrolysis step when it is desired to recover only the poly (methyl methacrylate).

211866

Affiliated with

Also associated with

Rating

Method for recovery of methyl methacrylate from mixed... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for recovery of methyl methacrylate from mixed..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for recovery of methyl methacrylate from mixed... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1131481