POLYURETHANE CHAIN EXTENDER, POLYURETHANE AND METHOD FOR PRODUCING POLYURETHANE

摘要

To provide a chain extender that can provide a polyurethane having excellent heat resistance and tensile elongation, and a polyurethane and a method for producing a polyurethane using the chain extender.SOLUTION: The present invention provides a polyurethane chain extender containing a diol represented by formula (1); in formula [I], Rand Rindependently represent a hydrocarbon group, Rindependently represent a hydrogen atom, a group containing a hetero atom, a group containing a halogen atom, a C1-6 linear alkyl group, a C3-6 branched alkyl group, or a C6-12 group containing an aryl group.SELECTED DRAWING: None