Typically, a mixture consisting of mdi and its oligomers is produced. Read through all the steps before starting procedure. This product is suitable for industrial high performance coatings for wood, metal, plastics, and equipment. Large quantities may be pumped into closed but not sealed containers for disposal.
Decontaminate area using waterammonia solution with 12% added detergent, letting it stand over affected area for at least 10 minutes. Aliphatic polyisocyanate hardener based on hexamethylene. Corporation bayhydur xp7007, a modified aliphatic isocyanate trimer was used for crosslinking xm4316 in one study, and another pur prepared via isocyanate chemistry designated xp4 was used for further comparison to xm4316. The first step is the thermal liberation of the isocyanate group rnco 2.
Isocyanates can be aromatic, like tdi and mdi, or aliphatic like hdi. Your new online msds binder is a place for you to store the material safety data sheets you need to deploy. Dicyclohexylmethane diisocyanate prepolymer repeated exposure specific target organ toxicity 2. Methylene diphenyl diisocyanate mdi and related compounds. Other companies are charging thousands of dollars to set up accounts and give you access to their msds online database.
Isocyanates are extremely reactive and also toxic compounds. The hard segment is defined as the chain extenderisocyanate reaction product, and the soft segment is defined as the polyolisocyanate reaction product. If temporary control of isocyanate vapor is required, a blanket of protein foam may be placed over the spill. Aliphatic polyisocyanate resin, hexamethylene diisocyanate monomer msds number iso52 product use architectural coating and waterproofing company name gaco western 1245 chapman drive. Some major aliphatic isocyanates comprise of hexamethylene diisocyanate hdi and dicyclohexylmethane 4,4diisocyanate h12mdi. Extreme care must be used in handling these materials and a msds from the manufacturer has to be consulted. Obtain certification and receipts of proper disposal from contractor. Environmental protection agency office of pollution prevention and toxics 401 m street, s. Material safety data sheet lapolla isocyanate lpaiso. Diphenylmethane diisocyanate, the principal active ingredient in mdi products, is a highly reactive and a potentially hazardous material that has the potential to adversely affect or injure the eyes, skin, and respiratory tract 1 if appropriate safe handling and use instructions. Msds 12 isocyanate activators, hardeners, and additives dupont performance coatings material safety data sheet january 1, 2008 page. Basonat hi series offers excellent gloss retention and light stability with outstanding weather, chemical, and abrasion resistance.
Examples of aliphatic diisocyanates include isophorone diisocyanate ipdi, hexamethylene diisocyanate hdi, and bis4isocyanatocyclohexylmethane h 12 mdi figure 3. Msds 12 dupont performance coatings january 1, 2008. Homopolymer of hexamethylene diisocyanate 40 60 28182812 aliphatic polyisocyanate resin polymer 15 40 72259735 nbutyl acetate 5 10 123864 light aromatic solvent naphtha 3 7 64742956 1,2,4trimethylbenzene 1 5 95636 isophorone diisocyanate 0. Blocked isocyanates are typically manufactured from hydrogencontaining compounds such as phenol, ethyl acetoacetate and. Pigments were obtained from commercial suppliers such as bayer, cabot, dupont and basf. The fast crosslinking with polyisocyanate resins occurs under the influence of moisture by releasing the original diamine. Issue date 12152014 9462 south 560 west sandy, utah 84070 section 1.
Organic compounds that contain an isocyanate group are referred to as isocyanates. Contact a licensed hazardous waste disposal contractor for neutralization and proper disposal of isocyanate, neutralizing or rinsing liquids, and containers. Baxendens trixene blocked isocyanates are designed to be compatible with hydroxyl functional polyesters, poloyethers and acrylics, as well as epoxy and amine functional resins. It exhibits excellent resistance to salt spray, water soak and humidity. An organic compound with two isocyanate groups is known as a diisocyanate. Tpu preparation the polyol was charged into a resin flask, heated to 105110degreesc and vacuum dried for 1. Chemical product and company identification chemical name. Guidance for working with march 201648148r 1r1 aliphatic. Diisocyanates are manufactured for the production of polyurethanes, a class of polymers isocyanates should not be confused with cyanate esters.
Aliphatic polyisocyanate for lightfast and weatherresistant twopack polyurethane coatings. Hazards of isocyanates tdi, mdi, hdi in resins, coatings. Aliphatic diisocyanates adi are specialty intermediate chemicals used primarily to make durable coatings, adhesives, sealants, elastomers, and textiles, among other products. Aliphatic polyisocyanate resin polymer 15 40 72259735 nbutyl acetate 5 10 123864. In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. The aromatic isocyanates tdi and mdi are more reactive and more economical to use than aliphatic hdi. Isocyanate is the functional group with the formula r. Aliphatic polyisocyanates 1525 ne ne not established specific chemical identity is withheld as a trade secret hexamethylene diisocyanate 822060 safety data sheet version. Pentamethylene diisocyanate pdi, a new biobased aliphatic isocyanate designed for polyurethane coatings, is expected to be made commercially available in 2015 7.
Polyurethane adhesives based on aliphatic isocyanates exhibit supreme mechanical properties, good weathering resistance, durability, color stability, bonding to various substrates, and are user friendly as they dont release carcinogenic amines. Substancepreparation and company identification company 24 hour emergency response information. Hazards identification respiratory tract inhalation lungs, respiratory tract inhalation eye irritant skin sensitization respiratory sensitization single exposure safety data sheet. Product safety assessment mdibased isocyanate products. Depending on the type of isocyanate, the type of alcohol, catalysts and other additives used, a wide variety of products can be formed such as those mentioned above. Isocyanates are a family of highly reactive, low molecular weight chemicals. There is a potential for workplace exposure to dow 3019 isocyanate in industrial, commercial, construction, or manufacturing settings. Handling and storage handling general advice if bulging of drum occurs, transfer to well ventilated area, puncture to relieve pressure, open vent, and let stand for 48 hours before resealing. Familiarize yourself with the key values, benefits and end market approaches of aliphatic isocyanates in polyurethane adhesives. This action plan addresses the use of methylene diphenyl diisocyanate mdi and related compounds see appendix 1 in products that may result in consumer and general population.
The american chemistry councils aliphatic diisocyanates. For example, aromatic isocyanates are typically unblocked at lower temperatures than those required to. Science applications international corporation 11251 roger bacon drive reston, virginia 20190 may 1, 1997 revised june 2005 see editors note epa contract no. Subsequent phosgenation yields an aromatic isocyanate product mix largely corresponding to the composition of the polyamine. They are widely used in the manufacture of flexible and rigid foams, fibers, coatings such as paints and varnishes, and elastomers, and are increasingly used in the automobile industry, autobody repair, and building insulation materials.
Aquacast acs through acs 1099 series, and all acsx prefixes, uc 800 through uc 899 series and all ucx prefixes. Blocked isocyanate an overview sciencedirect topics. Page 4 lpa isocyanate msds lpa isocyanate continued rev. Generally, they are considered to be specialty materials used in significantly smaller.
Individuals with lung or breathing problems or prior reactions to isocyanates must not be exposed to vapors or spray mist of this product. Aliphatic polyisocyanate resin, hexamethylene diisocyanate monomer diisocyanate resin, butyl acetate, xylene 25%, methyl amyl ketone, solvent 100. Aliphatic isocyanates, including hdi, hdi trimer, hmdi,hdi biuret, ipdi. This guide will apprise you with aliphatic isocyanates and their development which has extended the possibilities offered by polyurethane adhesives in terms of both performance and formulation flexibility. Solution of 1, 6hexamethylene diisocyanate based biuret polyisocyanate synonyms. Skin designation methyl isocyanate cas 624839 can be absorbed through the skin. Isocyanate resin were introduced in german particleboard industry in early 1970s and since then the use of mdi 4,4methylenediphenylisocyanate binders has grown significantly 6.
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