Polyureaurethane material and method of producing a polyureaurethane material
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United States of America Patent
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Issued Date -
Sep 14, 2006
app pub date -
Mar 10, 2005
filing date -
Mar 10, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to a linear polyureaurethane polymer, comprising in its hard blocks, at least two urea groups. The hard block of the polyureaurethane material is preferably synthesized by using diisocyante groups in the form of lysine diisocyanate (LDI). The soft block component of the polyureaurethane material is preferably poly(epsilon-caprolactone) (PCL). The invention also relates to a method of producing a polyureaurethane polymer, which in short comprises the steps of reacting a soft block component with a diisocyante group in order to prepare a prepolymer component, combining the prepolymer component with a catalyst in order to define a reaction solution and adding water to the reaction solution, preferably carried to the reaction solution in vapour phase.
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