Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1981-12-07
1983-11-08
Lee, Lester L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528364, 528422, 528425, 528125, 528126, 528128, 528172, 528173, 528183, 528184, 528185, 528191, 528193, 528194, 528195, 528206, 528208, 528209, 528210, 528212, 528220, 528229, 528271, 528337, 528339, 528340, 528344, 528348, 528360, 528361, 528363, C08G 6318, C08G 6360, C08G 6944
Patent
active
044143818
ABSTRACT:
A melt-processable aromatic polyester anhydride characterized in that from 5 to 80% of the units linking the reactant residues in the polymer chain have the formula: ##STR1## the remaining linkages between the residues of the reactants being of the formula: ##STR2## optionally together with linkages of the formula: ##STR3## substantially all of said remaining linkages being disposed in coaxial or parallel and oppositely directed manner with respect to the residues to which they are linked, the polyester anhydride having a solubility of less than 5% by weight in dimethyl sulphoxide at room temperature.
REFERENCES:
patent: 3200097 (1965-08-01), Windholz
patent: 3515695 (1970-06-01), Loughran et al.
Yoda, Makromolekulare Chemie, vol. 32, pp. 1-12 (1959).
Conix, Journal of Polymer Science, vol. 29, pp. 343-353 (1958).
Griffin Brian P.
MacDonald William A.
Imperial Chemical Industries plc
Lee Lester L.
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