C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/187, 400/301
C08G 63/00 (2006.01) C08G 63/193 (2006.01) C08G 63/78 (2006.01) C08G 63/83 (2006.01) C08G 63/90 (2006.01) C08K 3/00 (2006.01) C08L 67/03 (2006.01)
Patent
CA 1210890
- 25 - ABSTRACT OF THE DISCLOSURE An improved process for preparing a polyarylate having a reduced viscosity of from about 0.1 to greater than 1.0 dl/gm comprising the following steps: (a) reacting an acid anhydride derived from an acid containing from 2 to 8 carbon atoms; with at least one dihydric phenol to form the corresponding diester; and (b) reacting said diester with at least one aromatic dicarboxylic acid at a temperature sufficient to form the polyarylate, wherein the improvement comprises carrying out said process in the presence of a particular solid adsorbent.
430181
Jones Thomas R.
Kawakami James H.
Maresca Louis M.
See Benito
Hopley William G.
Solvay Advanced Polymers L.l.c.
Union Carbide Corporation
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