Polycondensation catalyst

Details Polycondensation catalyst Polycondensation catalyst

B - Operations, Transporting

01

J

252/124, 402/187

B01J 27/182 (2006.01) B01J 31/02 (2006.01) C08G 63/87 (2006.01) C08G 69/28 (2006.01)

Patent

CA 1314278

Abstract of the Disclosure POLYCONDENSATION CATALYST Condensation polymers of high molecular weight, such as polyesters, polyureas, and polyamides, are usually prepared at temperatures of 200°C or greater. However, by utilizing the catalyst system of the present invention condensation polymers can be synthesized at much lower temperatures. These catalyst systems are comprised of (1) a silicon-phosphorus composition which contains at least one divalent oxygen atom which is bonded directly to a tetravalent silicon atom and a trivalent or pentavalent phosphorus atom; and (2) at least one acid acceptor. For example, P(OSiR3)3 wherein R can be an aliphatic or aromatic hydrocarbon radical, can be used in conjunction with a basic solvent as a catalyst system. Polymeric agents having pendant diphenylphosphine dichloride groups can also be used in conjunction with an acid acceptor as a catalyst system.

537705

Affiliated with

Also associated with

Rating

Polycondensation catalyst does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polycondensation catalyst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polycondensation catalyst will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1167541