Polyurethanes with improved tear propagation resistance
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United States of America Patent
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-
Aug 26, 2003
Grant Date -
Aug 7, 2003
app pub date -
Aug 24, 1999
filing date -
Aug 18, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Polyurethanes having improved tear resistance which are the reaction product of the following components: A) a polyol component containing dimer diol and/or trimer triol and/or an OH-terminated polyester produced from polycarboxylic acids, preferably dimer fatty acid and/or trimer fatty acid, and diols and B) an isocyanate component containing prepolymers obtained by reacting polyfunctional isocyanates with dimer diol and/or trimer triol and/or an OH-terminated polyester produced from polycarboxylic acids, preferably dimer fatty acid and/or trimer fatty acid, and diols; and processes for their manufacture.
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