WebJul 1, 2005 · A new CAO/TDI adduct was synthesized by reacting 2,4-toluene diisocyanate (TDI) with castor oil (CAO) in a molar ratio of 70%, respectively, at 100°C for 90 min. The chemical structure of the ... WebApr 1, 2001 · TDI was found to localize to the apical surfaces and to the cilia of airway epithelial cells following either in vivo or in vitro exposure (Ebino et al., 1998; Karol et al., 1997; Lange et al., 1999b). These experiments demonstrate the formation of TDI adducts and interaction of TDI with airway epithelial cells.
Did you know?
WebFeb 14, 2007 · Four polyethylene glycol (PEG)/2,4-toluene diisocyante (TDI)/ perfluorinated aliphatic alcohols mixture (F6) adducts were prepared by reacting equimolar ratios of PEG (300, 600, 1000, or 2000), TDI, and F6 at 90°C for 90 min. All adducts, except that based on PEG 300 were water dispersible. WebThe effects of mass ratio of toluene diisocyanate(TDI) to trimethanol propane (TMP), reaction temperature and time, solvent and antioxidant on the properties of TDI TMP adduct were studied. The results show that the fitting mass ratio of TDI/TMP is 3.89～3.91, reacting 2.5～4 h at 75～95℃. Adding of appropriate antioxidant can reduce yellowing.
WebWe have previously shown that TDI vapor forms adducts with the apical surface of the respiratory epithelium, and that it colocalizes with ciliary tubulin. In vitro, we have shown rapid reaction of TDI with glutathione (GSH) and transfer of the bisGS-TDI adduct to a sulfhydryl-containing major histocompatibility complex peptide. WebNov 1, 2003 · Synthesis of water reducible blocked TDI-based adducts/crosslinkers A 500 ml four-necked flask equipped with mechanical stirrer, nitrogen inlet, condenser was charged with DMPA and N -methylpyrrolidone (NMP). The reactants were heated to 80 °C in a constant temperature silicone oil bath.
WebJul 1, 2005 · A new CAO/TDI adduct was synthesized by reacting 2,4-toluene diisocyanate (TDI) with castor oil (CAO) in a molar ratio of 70%, respectively, at 100°C for 90 min. The … WebGeneral-purpose type These TDI adduct types are widely used in combination with various polyols in woodworking, construction and ink binders. Quick-drying type These TDI polymers dry faster than the general-purpose type. Various grades are available according to the required drying speed.
WebApr 16, 1996 · Adducts, Amines, Aromatic compounds, Abstract Guinea pig hemoglobin (Hb) adducts of 2,4- and 2,6-toluene diisocyanate (2,4- and 2,6-TDI) were individually prepared, each at a Hb tetramer to diisocyanate ratio of 1:1, and compared with adducts of Hb from animals exposed to 1 ppm 2,4-TDI vapor.
WebPolyisocyanates such as triisocyanates derived as TDI, HDI, IPDI adducts with trimethylolpropane (TMP), dimerized isocyanates termed as uretdiones, polymeric MDI, blocked isocyanates (where alcohols, phenols, oximes, lactams, hydroxylamines are blocking agents) are also used in PU production. Lately, fatty acid derived isocyanates … horse jokes ukWebSearch the center locator in your area or anywhere you wish to travel around the world and find your partner of choice. See which dive sites they operate, check their upcoming … horse jokesWebNov 1, 2012 · The thermal analysis revealed that MEKO-blocked TDI adducts and 2-MI-blocked TDI adducts started to de-block at about 70.7 and 125.2 °C, respectively. The storage stability results showed that all dispersions prepared were stable for more than 6 … horse jobs louisville kyWebNov 8, 2024 · New silicone based adducts were synthesized by reacting equimolar ratio of carbinol polydimethylsiloxane (CPDMS), 2,4-toluene diisocyanate (TDI) and polyethylene glycol (PEG, having a molecular weight of 300, 600, 1000, 2000 or 6000 Da) at 100 °C for 90 min. Only the PEG 600, 1000, and 2000 based adducts are self-water dispersible. horse illinoisWebUsing a specific and sensitive rabbit antiserum prepared to TDI-keyhole limpet hemocyanin, the presence of TDI adducts in respiratory tissues was investigated TDI adducts were … horse jockey jokesWebNov 8, 2024 · New silicone based adducts were synthesized by reacting equimolar ratio of carbinol polydimethylsiloxane (CPDMS), 2,4-toluene diisocyanate (TDI) and polyethylene glycol (PEG, having a molecular weight of 300, 600, 1000, 2000 or 6000 Da) at 100 °C for 90 min. Only the PEG 600, 1000, and 2000 based adducts are self-water dispersible. horse jumping jokesWebOct 1, 2016 · DOI: 10.1016/J.PORGCOAT.2016.05.020 Corpus ID: 100475785; SA/TDI/PEG adducts as water repellent finishes for cotton/polyester blended fabric @article{Fahmy2016SATDIPEGAA, title={SA/TDI/PEG adducts as water repellent finishes for cotton/polyester blended fabric}, author={Hussein Mahmoud Fahmy and Amal A. Aly … horseman auto santee