Description TMXDI (META) aliphatic isocyanate monomer containing two tertiary alcohols diisocyanate functional groups. Compared with primary and secondary isocyanate isocyanate, this functionality provides a unique feature. TMXDI1 monomers are used in the synthesis of solvent-free polyurethane dispersion. These dispersions can be designed to have a light stability, adhesion, flexibility and rigidity of water-based adhesives, coatings and inks. Application Categories · solvent-free aqueous polyurethane dispersion Automotive Automotive waterborne primer repair factory primer · plastic and wood waterborne paints, leather, paints, water-based heat-activated adhesive layer composite board adhesive · Water-based inks typically feature Appearance colorless liquid CAS number 002778-42-9 Formula C14H16N2O2 Molecular Weight 244.3 NCO content (% of the total weight) 34.4 boiling point (℃, 50mmHg) 150 Flash point (℃) 2 153 25 ℃ when the specific gravity 1.07 2Setaflash Closed Cup polyurethane dispersion TMXDI monomer in tertiary isocyanate functional groups than other features make it an aliphatic isocyanates is more suitable for the synthesis of solvent-free polyurethane dispersions. Polyurethane polymers with t-isocyanate synthesis than the same polymer from primary and secondary isocyanate monomer synthesis has a lower and more stable viscosity. Steric hindrance will also prevent condensation from isocyanate, preventing the formation of allophanate, biuret or isocyanurate resin. Peter isocyanate with carboxyl rarely produce side effects and with low reactivity, compared to the other diisocyanate, which allows pre-polymer based on TMXDI monomer carried out at a higher temperature processing. Higher processing temperature and the intrinsic viscosity of the prepolymer lower, allowing the use of a solvent in the absence of more easily synthesized dispersion. As long as the water temperature does not exceed 40 ℃, reaction of the isocyanate with water is slow, or even negligible, so it should be in a stoichiometric 1: 1 in the case of chain extension do. Paint application consists of TMXDI monomer dispersion ratio synthesized by the isophorone or hexamethylene diisocyanate synthesis of the corresponding dispersion has less tension and higher ductility destruction tendencies. The small amount of the pre-polymer formulation can enhance trimethylolpropane tension. While maintaining a good ductility, the TMXDI monomer synthesis constitutes a unique dispersion coating having flexibility. TMXDI monomer based on the dispersion properties can be made of soft, flexible coating, as well as close to the car's paint finish stiffness. To achieve the specified stiffness depends on the choice and different NCO / OH ratio, as well as the number of carboxylic acid functional group and a short chain diol correct body polyester resin. When you want to use these dispersions to a hard film, you need to add the relevant solvent and resin mixture. Good substrate adhesion has a unique system based on decentralized TMXDI monomer into the paint. Because these dispersions are thermoplastic, it requires the film has solvent resistance, it is recommended to add a crosslinking agent. Adhesive application consists of TMXDI monomer synthesis of dispersions can provide thermal activation temperature than the isophorone diisocyanate or hydrogenated diphenyl methyl isocyanate synthesis dispersion has a lower. Also lower activation temperature, activation temperature of the adhesive changes over time remains unchanged. Low heat activation and good adhesion to flexible substrates, so temperature-sensitive plastic substrates and flexible film adhesive on TMXDI-based solvent-free dispersions can be applied. Ink applications due to the adhesion of TMXDI monomer synthesis dispersion on flexible plastic substrates, making it a good choice for water-based ink binder. Closed product TMXDI (META) aliphatic isocyanates with blocked isocyanate typical reaction to form a single component thermosetting coating. For a fixed blocking agent, tertiary isocyanate functional groups than the primary and secondary isocyanates predetermined low unblocking temperature 10-15 ℃. Storage because TMXDI (META) aliphatic isocyanate moisture-sensitive, it must be stored in closed original containers to prevent contamination by water and air. If the storage container is not filled, it is recommended before sealing the container filled with dry nitrogen within the space above the liquid surface. Health and safety information Inhalation TMXDI (META) aliphatic isocyanates is harmful to humans. It is pungent vapor, liquid can irritate the eyes and cause allergic reactions. However, we do not need a closed system, we should provide a good surrounding environment and local exhaust ventilation to make TMXDI exposure to a minimum. For more information, see Cytec Industries, Ltd. Material Safety Data Sheet 2344. Important Notice the text of the information and statements to be reliable, but is not interpreted as a guarantee or be borne by the respective duties and legal responsibilities. Users should be fully verified and tested to identify the information provided herein, product and vendor applicability to the user's own particular purpose. It does not provide for a particular purpose applicable guarantee. Everything is not mentioned in the text of the new practice of the invention without a license as a permit, motivation or advice. Trademark notice? Represents a registered trademark in the United States. This flag can also be registered as a trademark and is used in other countries. 1 TMXDI mentioned in the text are recognized as TMXDI (META) aliphatic isocyanate.