Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1997-09-19
2000-11-21
Mosley-Boykin, Terressa
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528176, 526 65, C08G 6400
Patent
active
061504939
ABSTRACT:
The invention relates to a process for the preparation of poly (ester-carbonate)s from the corresponding oligomers, using solid state polymerization process, which comprises mixing the desired oligomers in a suitable solvent or non-solvent, adding a suitable catalyst to this mixture, refluxing the mixture for a period of 1 to 8 hours, removing the solvent by known methods, polymerization the oligomer mixture in the solid state either in presence of vacuum or under a flow of inn gas at a temperature ranging between 180-240.degree. C. for a period of 5 to 20 hours to obtain the product.
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Hait Sukhendu B.
Sivaram Swaminathan
General Electric Company
Johnson Noreen C.
Mosley-Boykin Terressa
Stoner Douglas E.
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