Polycarbonate polyol and uses of the same
AssigneeDairen Chemical Corporation
InventorsWei-Lun HSIEH, Hsing-Yun WANG
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Abstract
A polycarbonate polyol is provided. The polycarbonate polyol comprises a repeating unit represented by the following formula (I) and terminal hydroxyls: in formula (I), R is a substituted or unsubstituted C2-C20 divalent aliphatic hydrocarbyl, wherein the 1H-NMR spectrum of the polycarbonate polyol has an integral value A of signals from 4.00 ppm to 4.50 ppm and an integral value D of signals from 0.90 ppm to 1.10 ppm, the ratio of D to A (D/A) ranges from 0.03 to 1.45, and the 1H-NMR spectrum is measured by using deuterated chloroform as a solvent and tetramethylsilane as a reference substance.
Claims20
A polycarbonate polyol, which comprises a repeating unit represented by the following formula (I) and terminal hydroxyls:
- in formula (I), R is a substituted or unsubstituted C2-C20 divalent aliphatic hydrocarbyl,
- wherein the 1H-NMR spectrum of the polycarbonate polyol has an integral value A of signals from 4.00 ppm to 4.50 ppm and an integral value D of signals from 0.90 ppm to 1.10 ppm, the ratio of D to A (D/A) ranges from 0.03 to 1.45, and the 1H-NMR spectrum is measured by using deuterated chloroform as a solvent and tetramethylsilane as a reference substance.
Dependencies are inferred from the claim text.