Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1977-11-07
1979-10-09
Pertilla, Theodore E.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
252182, 525433, 260DIG24, 528171, 528202, C08L 6900, C08K 714
Patent
active
041705874
ABSTRACT:
The invention relates to statistical mixtures of halogenated bisphenols with halogen-free bisphenols and to processes for their preparation. This invention further relates to new aromatic, bromine-containing and/or chlorine-containing, high-molecular weight thermoplastic polycarbonates with good resistance to fire (oxygen index .gtoreq. 36%) and good flow properties, to their preparation from the statistical mixtures of halogenated bisphenols and halogen-free bisphenols and to their use alone or as a mixture with halogen-free polycarbonates or with thermoplastic polyesters for the preparation of moldings, films and fibers.
REFERENCES:
patent: 3231603 (1966-01-01), Hennis et al.
patent: 3363007 (1968-01-01), Majewski et al.
patent: 3437637 (1969-04-01), Matzner et al.
patent: 3575927 (1971-04-01), Jackson, Jr. et al.
patent: 3897392 (1975-07-01), Haupt et al.
patent: 3897394 (1975-07-01), Moore
patent: 3920573 (1975-11-01), Vegter et al.
patent: 3965064 (1976-06-01), Mercier et al.
Chemical Abstract No. 20082w, Wielgosz 7/24/1972 vol. 77, #4, p. 5.
Freitag Dieter
Nouvertne Werner
Schmidt Manfred
Bayer Aktiengesellschaft
Harsh Gene
Pertilla Theodore E.
Pope Lawrence S.
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