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AssigneeSamyang Corporation
InventorsJun Seop Im, Seung Hyun Yoo, Hoon Ryu, Won Hyun Jeon
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A polycarbonate diol is derived from ether diol of anhydrohexitol, a preparation method thereof, a polyurethane prepared therefrom, and adhesive, etc. including the same. More specifically, the polycarbonate diol includes repeated units derived from ether diol of anhydrohexitol; and carbonate diester; and optionally anhydrohexitol; and thereby showing better effect of improving color as compared with conventional polycarbonate diol, and being capable of providing polyurethane prepared therefrom with remarkably improved adhesion strength (T-peel strength or shear strength), preparation method thereof, polyurethane prepared therefrom, and adhesive, paint and coating agent including the same.
A polycarbonate diol comprising:
A polycarbonate diol comprising:
A method for preparing a polycarbonate diol, comprising a step of reacting a mixture comprising (i) ether diol of anhydrohexitol and (ii) carbonate diester, in the presence of a transesterification catalyst,
A method for preparing a polycarbonate diol, comprising a step of reacting a mixture comprising (i) ether diol of anhydrohexitol, (ii) carbonate diester and (iii) anhydrohexitol, in the presence of a transesterification catalyst,
Dependencies are inferred from the claim text.