Novel polyester and process for preparing polyester
A polyester which comprises dicarboxylic acid constituent units derived from terephthalic acid and naphthalenedicarboxylic acid and diol constituent units derived from ethylene glycol, and which has the following properties: 40 to 99.5% by weight of constituent units derived from terephthalic acid,...
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Format: | Patent |
Sprache: | eng |
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