Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1990-04-16
1991-12-31
Bleutge, John C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525462, 525534, 525535, 525537, C08G 6548
Patent
active
050773500
ABSTRACT:
Poly(aryl ether/thioether)-poly(aryl carbonate) block copolymers are prepared by reacting a poly(aryl carbonate) with a poly(aryl ether/thioether) having at least one electron-withdrawing group located in a position ortho or para to its ether/thioether linking group, in the presence of an exchange catalyst. At least a portion of the poly(aryl ether/thioether) blocks are joined to the poly(aryl carbonate) blocks through an ether/thioether oxygen or sulfur atom.
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Webster et al., Polyaryl Ether-Polyarylate Block Copolymers, Polymer Science, vol. 4, 1984, pp. 959-975.
Mullins Michael J.
Woo Edmund P.
Bleutge John C.
The Dow Chemical Company
Woodward David W.
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