Preparation of polyamides by anionic polymerization with substit

Details Preparation of polyamides by anionic polymerization with substit Preparation of polyamides by anionic polymerization with substit

1975-11-17

1977-08-16

Anderson, Harold D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 78P, C08G 6918

Patent

active

040425720

ABSTRACT:
Preparation of polyamides by anionic polymerization or copolymerization of cyclic lactams which comprises conducting the polymerization in the presence of a six membered cyclic co-catalyst containing three ##STR1## groups and represented by the formula: ##STR2## wherein R.sub.1 and R.sub.2 are each selected from the group consisting of aryl groups, or containing two ##STR3## groups and represented by the formula: ##STR4## wherein R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are each selected from the group consisting of alkyl (C 1-18) and aryl groups and combinations thereof, and X.sub.1, X.sub.2 and X.sub.3 are either sulphur or oxygen, except that at least two members of the group X.sub.1, X.sub.2 and X.sub.3 must be oxygen.
Preferably, the aryl contains from 1 to 3 benzene rings, or can be an alkoxyaryl or dialkylaminoaryl. The alkyl can be an arylated alkyl.

REFERENCES:
patent: 3017391 (1962-01-01), Mottus et al.
patent: 3448085 (1969-06-01), Pietrusza et al.
patent: 3803101 (1974-04-01), Matsuo et al.

Affiliated with

Also associated with

Rating

Preparation of polyamides by anionic polymerization with substit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of polyamides by anionic polymerization with substit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of polyamides by anionic polymerization with substit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-360657