Branched polycarbonates and method of preparation

Details Branched polycarbonates and method of preparation Branched polycarbonates and method of preparation

C - Chemistry, Metallurgy

08

G

402/176

C08G 64/00 (2006.01) C08G 64/14 (2006.01) C08G 64/30 (2006.01) C08G 75/28 (2006.01)

Patent

CA 2018001

RD-18,774 BRANCHED POLYCARBONATES AND METHOD OF PREPARATION Abstract Branched polycarbonates are prepared by melt equilibration of aromatic cyclic polycarbonate oligomers with a polyhydric phenol having more than two hydroxy groups per molecule, preferably 1,1,1-tris-(4-hydroxyphenyl)ethane, in the presence of a carbonate equilibration catalyst, preferably tetrabutylammonium tetraphenylborate. In an additional embodiment of the invention, a linear aromatic polycarbonate is added to the reaction mixture. Branched polycarbonates prepared according to this invention have high melt strength and high shear sensitivity characteristics and are useful in extrusion and injection molding processing applications and particularly useful in blow molding applications for preparing relatively large articles and panels.

Affiliated with

Also associated with

Rating

Branched polycarbonates and method of preparation does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1607747