POLYMERIC MATERIALS

A polymeric material having a repeat unit of formula -O-Ph-O-Ph-CO-Ph- Iand a repeat unit of formula -O-Ph-Ph-O-Ph-CO-Ph- IIwherein Ph represents a phenylene moiety;wherein the repeat units I and II are in the relative molar properties I:II of from 65:35 to 95:5;wherein the p...

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Bibliographische Detailangaben
Hauptverfasser:	WILSON, Brian, AINSWORTH, Richard Luke, CAPRA, Carlo, CHAPLIN, Adam, BEARDSALL, Carlie Ann, MATTHEWS, Alice Victoria Mary
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Zusammenfassung:	A polymeric material having a repeat unit of formula -O-Ph-O-Ph-CO-Ph- Iand a repeat unit of formula -O-Ph-Ph-O-Ph-CO-Ph- IIwherein Ph represents a phenylene moiety;wherein the repeat units I and II are in the relative molar properties I:II of from 65:35 to 95:5;wherein the polymer material has a crystallinity of at least 25% measured by differential scanning calorimetry as described in Example 31.A process for the production of a polymeric material having a repeat unit of formula -O-Ph-O-Ph-CO-Ph- Iand a repeat unit of formula -O-Ph-Ph-O-Ph-CO-Ph- IIwherein Ph represents a phenylene moiety, said process comprising polycondensing a mixture of at least one dihydroxybenzene compound and at least one dihydroxybiphenyl compound in the molar proportions 65:35 to 95:5 with at least one dihalobenzophenone in the presence of sodium carbonate and potassium carbonate wherein:(i) the mole% of said potassium carbonate is at least 2.5 and/or(ii) the following relationship (referred to as the "D50/mole% relationship") applies