Patent ID: 7385022
Filing Date: 2008-06-10
Classification: C08G,G02B

Abstract:
1. A polythiocarbonate polythiol comprising a transesterification reaction product of a carbonate compound with a polythiol compound component comprising at least one polythiol compound, and having repeating units represented by the chemical fomula (I): in which formula (1), R represents a divalent aliphatic hydrocarbon group having 2 to 14 carbon atoms or a divalent aromatic hydrocarbon group having 6 to 14 carbon atoms, which aliphatic or aromatic hydrocarbon group may have at least one substituent which does not take part in a reaction with the polyisocyante component and the carbon chain in the aliphatic or aromatic hydrocarbon group may include at least one member selected from hetero atoms and an —OCO— group, and the polythiocarbonate polythiol has a number average molecular weight of 200 to 2500.