Polyester diol and preparation method thereof
The invention provides a polyester diol and a preparation method thereof. The polyester diol provided by the present invention is an amorphous 1,4-cyclohexanedicarboxylic acid-based polyester diol with a controllable molecular weight. The polyester diol is prepared by polycondensation reaction of 1,...
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Format: | Patent |
Sprache: | chi ; eng |
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