3,3′-Dimethyl-4,4′-Biphenyldiisocyanate (TODI)
June 26, 2015 11:00
Title: THERMOPLASTIC POLYURETHANE FOR SEAL APPLICATIONS
Number/Link:WO2015/090916 (German)
Applicant/Assignee: Carl Freudenberg
Publication date: 25-06-2015
“Gist”: TPU based on blend of a polyester- polyether- and polycarbonate diols has exceptional properties
Why it is interesting: According to this application, TPUs prepared from blends of polyether, polyester and polycarbonate diols, result in materials with very high hydrolysis resistance, mechanical properties, high- ánd low temperature resistance and with excellent processing properties. In the examples 2000 MW polyether-, polycarbonate- and polycaprolactone diols are blended, reacted with toluidinediisocyanate (TODI) and subsequently extended with butanediol. Surprisingly there appears to act some kind of synergy resulting in properties higher than would be expected from the individual polyol components.
3,3′-Dimethyl-4,4′-Biphenyldiisocyanate (TODI)
Posted by Gerhard Bleys
Categories: Polyols, Thermoplastics
Tags: elastomers, glass transition, polycarbonate polyol, polyester polyol, polyether polyol, TODI, TPE, TPU
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