Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1999-01-28
2000-05-09
Boykin, Terressa M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528198, C08G 6400
Patent
active
060605766
ABSTRACT:
Copolycarbonates of enhanced crystallinity, suitable for solid state polymerization, are prepared by melt blending, under non-reactive conditions, an amorphous precursor polycarbonate such as a bisphenol A polycarbonate with one or more other monomers which may include a spiro(bis)indane bisphenol and/or a phenylindane bisphenol, optionally with a polyoxyalkylene glycol. The resulting blend is pelletized and the crystallinity of the resulting pellets is enhanced, typically by contact with an alkanol liquid or vapor.
REFERENCES:
patent: 4948871 (1990-08-01), Fukuoka et al.
patent: 5204377 (1993-04-01), Fukawa et al.
patent: 5214073 (1993-05-01), Fukawa et al.
patent: 5710238 (1998-01-01), Sivaram et al.
patent: 5717056 (1998-02-01), Varadarajan et al.
Concurrently filed U.S. Patent Application RD-26316, entitled "Method for Preparing Polycarbonates of Enhanced Crystallinity", by James Day et al.
Chatterjee Gautam
Day James
Wisnudel Marc Brian
Barker Robert T.
Boykin Terressa M.
General Electric Company
Johnson Noreen C.
LandOfFree
Method for preparing copolycarbonates of enhanced crystallinity 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 preparing copolycarbonates of enhanced crystallinity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for preparing copolycarbonates of enhanced crystallinity will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1066174