Aromatic polymers containing ketone groups

Details Aromatic polymers containing ketone groups Aromatic polymers containing ketone groups

1979-12-03

1982-07-13

Cockeram, H. S.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528125, 528128, C08G 802, C08G 1414

Patent

active

043395686

ABSTRACT:
Described herein are thermoplastic linear polymers containing recurring units of the formulae: ##STR1## wherein R is independently hydrogen, C.sub.1 to C.sub.6 alkyl, or C.sub.4 to C.sub.8 cycloalkyl, a is an integer of 0 to 4, Z is independently ##STR2## --SO--, --S--, --SO.sub.2 --, --O--, alkylene, cycloalkylene, arylene, alkylidene, or cycloalkylidene containing from 2 to 20 carbon atoms, with the proviso that Z cannot be ##STR3## when the connecting ether bonds are in the para position to Z; n is independently an integer of from 1 to 5. The units are attached to each other by an --O-- bond. Also, described herein is a process for preparing such polymers.

REFERENCES:
patent: Re28252 (1974-11-01), Barr et al.
patent: 3332909 (1967-07-01), Farnham et al.
patent: 3886120 (1975-05-01), Yagi et al.
patent: 4108837 (1978-08-01), Johnson et al.
patent: 4169178 (1979-09-01), Freeman
patent: 4176222 (1979-11-01), Cinderey et al.
patent: 4186262 (1980-01-01), Freeman et al.
patent: 4200727 (1980-04-01), Blinne et al.

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