Polyarylate polymers

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From ketone or ketene reactant

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528176, 528183, 528185, 528189, 528190, 528228, 528229, 528272, 528289, 528292, 528298, 528403, 525437, 525471, C08G 800

Patent

active

049772350

ABSTRACT:
Novel polyarylate polymers comprise alternating moieties derived from an aromatic dicarboxylic acid halide, with moieties derived from a hydroxyaryl-substituted 1,6-diaza [4.4] spirodilactam compound and, optionally, with moieties derived from a di(hydroxyphenyl) compound. The polyarylate polymers are thermoplastic polymers characterized by relatively high glass transition temperatures.

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patent: 4100140 (1978-07-01), Zanir et al.
patent: 4652608 (1987-03-01), Parker
patent: 4663464 (1987-05-01), Hockstra
patent: 4800231 (1989-01-01), Wang
patent: 4847388 (1989-07-01), Wang

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