The PPD™ clinical research business of Thermo Fisher Scientific is a global contract research organization (CRO) delivering clinical expertise for your product's success.

HARTDUR 120 (PPDI) is a premium diisocyanate employed in polyurethane (PU) applications. Products derived from PU systems incorporating HARTDUR 120 are capable of enduring elevated temperatures under conditions of high-speed and continuous operation.

Selected Adiprene ® pPDI and LF pPDI prepolymers can outperform hydrogenated nitrile butadiene rubber (HNBR) at temperatures as high as 150°C (302°F), opening new application opportunities with performance beyond typical polyurethane elastomers.

1,4-Phenylene diisocyanate (PPDI) can be used as: A reactant to synthesize high yield polymers via criss-cross addition polymerization reaction with alkyl aldazines in pyridine. An organic building block to prepare adamantyl-containing diurea and thiourea derivatives applicable as potent mammalian and human soluble epoxide hydrolase inhibitors.

Test data indicates that PPDI-type thermoplastic polyurethane elastomers have unique dynamic properties and all heat resistance is improved, which will expand the application of thermoplastic polyurethane elastomers in key projects.

There are also less common aromatic diisocyanates, such as p-phenylene diisocyanate (PPDI) and naphthalene diisocyanate (NDI). What Is TDI? Toluene diisocyanate (TDI) is used in the production of polyurethanes, primarily for flexible foam applications including bedding and furniture, carpet underlay, as well as packaging applications. TDI is ...

PPDI is a specialty isocyanate developed by DuPont to achieve superior dynamic properties in demanding applications. It can be extended with polyethers, polyesters and polycaprolactone to achieve unparalleled performance in wheels and rollers.