Crystallization agent for bisphenol-A polycarbonate

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof

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Details

528288, 528292, 528301, 528347, 525408, 525433, 525439, C08G 6944, C08G 6940, C08G 63668, C08L 6900

Patent

active

052487563

ABSTRACT:
Disclosed is an alternating block copolymer composition useful for enhancing the crystallization of bisphenol-A polycarbonate which comprises the reaction product of a polyoxyalkylene polyamine and poly(ethylene)terephthalate. Also disclosed is a method of synthesizing the alternating block copolymer and a method of using the block copolymer composition in the crystallization of bisphenol-A polycarbonate.

REFERENCES:
patent: 4029694 (1977-06-01), Weipert
patent: 4503197 (1985-03-01), Speranza
patent: 5043191 (1991-08-01), Endres
Letton et al, Characterization and Crystallization Kinetics of PC/Jeffamine PET Blends; ANTEC Conference Jan. 1991.
Hsu et al., Study of the Compatibility of Blends of Polyoxyalkylene amine PET multiblock copolymers and PC; ANTEC Conference Jan. 1991.

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