Polycarbonates of substituted cyclohexylindenebisphenols

Details Polycarbonates of substituted cyclohexylindenebisphenols Polycarbonates of substituted cyclohexylindenebisphenols

1990-08-09

1991-07-23

Bleutge, John C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525 92, 525146, 525147, 525433, 525439, 525453, 525462, 525464, 525469, C08G 6406, C08L 6900

Patent

active

050344587

ABSTRACT:
Aromatic polycarbonates having weight average molecular weight M.sub.w of at least 10,000 which contain bifunctional carbonate structural units corresponding to general formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 independently represent hydrogen, C.sub.1 -C.sub.12 hdyrocarbon or halogen radicals; and

REFERENCES:
patent: 2538725 (1951-01-01), Johnson et al.
patent: 4368315 (1983-01-01), Sikdar
patent: 4982014 (1991-01-01), Freitag et al.
Schnell, H., "Chemistry & Physics of Polycarbonates", 1964, Interscience Publishers, pp. 89, 90, 104 and 106.

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