prov:value
| - sidue of a phenol, alcohol, diphenol, diol or polyol, such as ethylene glycol, 2,4-di-tert.-butylphenol, pentaerythritol, 4-nonylphenol, benzylalcohol, 4-chlorophenol, 1,1,1-trimethylolpropane and the like; the R2 groups, which can be the same or different, are monovalent organic radicals having from 1 to 30 carbon atoms and can be selected from substituted and unsubstituted aryl, alkyl, or combin
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