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US 4,849,504 AGranted
Polymers with vinylic units and aromatic units
AssigneeImperial Chemical Industries PLC
InventorsDenis G. H. Ballard, Andrew Courtis, Ian M. Shirley
Life of this patent
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Abstract
A process for the preparation of polymeric compositions which comprise novel polymers and copolymers of certain 1,2-disubstituted-cyclohexadienes, aromatization of such polymers in the form of inter alia fibers, and novel aromatic polymers.
Claims2
A substantially halogen-free polymeric composition comprising a polymer derived by aromatization of a copolymer of a 1,2-disubstituted-cyclohexa-3,5-diene with a polymerizable vinyl comonomer and having a structure which may be represented by the general formula:
- ##STR13## wherein Ar is p-phenylene;
- X, when present, is the residue of the polymerizable vinyl comonomer;
- n and m are whole numbers and the ratio of n:m lies in the range 1:0 to 1:1000.
Dependencies are inferred from the claim text.