Izocyn

Izocyn T 80. [Organika Zachem Chem. Works] TDI isocyanate. 

The analogous thiopolyurethanes with the side tolylmethylthiomethyl or naphthylmethylthiomethyl chains (306) were obtained from 2-(p-tolylmethylthiomethyl)-l,4-butanediol (TB) or 2-(l-naphthylmethylthiomethyl)-1,4-butanediol and HDI or Izocyn T-80 [TDI-80, the mixture of 2,4-TDI (80 wt%) and 2,6-TDI (20 wt%)] by solution (benzene) polymerization in the presence of di-n-butyltin dilaurate (DBTDL) [77-58-7] as catalyst. The polymer based on TB and HDI (ijred = 117 dL/g) was a high elasticity thermoplastic elastomer with tensile strength of 2.2 MPa and elongation at break of 780%. 

Applications.—Nylon 6 properties have been reviewed > and design and moulding discussed with basic matmal handling precautions. The properties of nylon 6 modified with Izocyn T-IOO has been evaluated and thermal properties were found to deteriorate but improvements were observed in mechanical and electrical properties. Studies on nylon 6 as seals have been reported, as have polyamide resins for paint products. ... 

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