C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/185, 402/186
C08G 63/02 (2006.01) C08G 63/547 (2006.01) C08G 63/682 (2006.01) C08G 69/44 (2006.01) C08L 27/06 (2006.01) C08L 67/06 (2006.01)
Patent
CA 1173198
ABSTRACT OF THE DISCLOSURE: A polyester or polyesteramide capable of forming an anisotropic melt containing residues derived from dicarboxylic acids, dihydric phenols, hydroxyaromatic acids and aminophenols characterised in that at least 10 mole % of the acid residues of the polymer are radicals derived from fumaric acid or a substituted fumaric acid. Preferably at least 10 mole % of the residues other than the residues of fumaric acid or substituted fumaric acid are aromatic ring-substituted residues. The polyester or polyesternmides of the invention are particularly suitable for blending with chlorine-containing polymers at concentrations of up to 25% by weight of the polymer blend to improve the processability of the chlorine-containing polymer. A polyester in which the acid residues are entirely aliphatic is particularly suitable for blending with poly(vinyl chloride).
389616
Cox Michael K.
Griffin Brian P.
Ballantyne Donald G.
Imperial Chemical Industries Plc
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