Recovery of high-quality polycarbonate from polycarbonate scrap

Details Recovery of high-quality polycarbonate from polycarbonate scrap Recovery of high-quality polycarbonate from polycarbonate scrap

1979-04-30

1980-07-15

Turer, Richard B.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

528196, 528488, 528489, 528491, C08J 1104

Patent

active

042127742

ABSTRACT:
The present invention relates to a process for the recovery of aromatic, high-molecular weight, thermoplastic polycarbonates from polycarbonate scrap, it being possible for the polycarbonate scrap to be either in the pure form as transparent naturally-occurring material, or mixed together with organic and, especially, inorganic dyestuffs and/or other additives, or in the form of a blend with other thermoplastic materials.

REFERENCES:
patent: 3008980 (1961-11-01), Katzschmann
patent: 3427370 (1969-02-01), Schnell et al.
patent: 3728287 (1973-04-01), Burmaster
patent: 4040991 (1977-08-01), Wiggins et al.
patent: 4051212 (1977-09-01), Grigab et al.
patent: 4136967 (1979-01-01), Grigab et al.
Die Makromoleculare Chemie, Band 65, (1963), pp. 252-253.

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