Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1981-10-28
1983-08-09
Lee, Lester L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528172, 528185, 528190, 528191, 528192, 528193, 528194, 528208, 528210, C08G 6354, C08G 6944
Patent
active
043980198
ABSTRACT:
A polyester or polyesteramide capable of forming an anisotropic melt containing residues derived from dicarboxylic acids, dihydric phenols, hydroxyaromatic acids and aminophenols characterized 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 polyesteramides 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).
REFERENCES:
patent: 3351611 (1967-11-01), Conix
patent: 4118372 (1978-10-01), Schaefgen
patent: 4230817 (1978-10-01), Charbonneau
patent: 4330457 (1982-05-01), East et al.
patent: 4339375 (1982-07-01), Calundann et al.
patent: 4341688 (1982-07-01), Charbonneau et al.
Chem. Abst. 92 (1980) 78948j.
Cox Michael K.
Griffin Brian P.
Imperial Chemical Industries plc
Lee Lester L.
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