C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/5602
C08L 67/00 (2006.01)
Patent
CA 1130490
ABSTRACT OF THE DISCLOSURE This invention is directed to a copolycarbonate of a polycarbonate of a trityldiol such as phenolphthalein and a polycarbonate of another diol such as bisphenol-A and to a process for preparing the copolycarbonate. The copolycarbonate is prepared by contacting the starting polycarbonates under conditions of shear and/or temperature sufficient to cause reaction of the polycarbonates to form a copolycarbonate of the polycarbonates. The copoly- carbonates of this invention exhibit generally improved impact resistance, clarity and flame resistance as compared with the starting polycarbonates or with a copolycarbonate from polycarbonate copolymers of the same diols. Applications of particular interest for the utilization of the copolycarbonates of this invention are in aircraft parts and automobile parts requiring higher heat resistance than possessed by the homopolymers of bisphenol-A and similar diols.
319520
Byrne Joseph B.
Weber Christian A.
Smart & Biggar
The Dow Chemical Company
LandOfFree
Copolycarbonates of phenolphthalein polycarbonates and other... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Copolycarbonates of phenolphthalein polycarbonates and other..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Copolycarbonates of phenolphthalein polycarbonates and other... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-838839