What is aliphatic polyisocyanate?
What is aliphatic polyisocyanate?
Aliphatic diisocyanates (ADI) are specialty intermediate chemicals used primarily to make durable coatings, adhesives, sealants, elastomers, and textiles, among other products. Generally, they are considered to be specialty materials used in significantly smaller quantities than the aromatic diisocyanates.
What is a polyisocyanate?
Isocyanates are compounds containing the isocyanate group (-NCO). They react with compounds containing alcohol (hydroxyl) groups to produce polyurethane polymers, which are components of polyurethane foams, thermoplastic elastomers, spandex fibers, and polyurethane paints.
What is isophorone diisocyanate used for?
General description. Isophorone diisocyanate (IPDI) is an aliphatic diisocyanate that is majorly used as a curing agent by forming −NCO linkages. It is mainly utilized in the preparation of polyurethane based films and foams for a variety of high performance coating applications.
What is blocked isocyanate?
Blocked isocyanates are typically formed by the reaction of an isocyanate with either an active hydrogen or methylene compound such as malonic esters (Figure 1). When these blocked products are heated in the presence of a hydroxyl functional polyol, two types of reactions can take place.
Where is MDI used?
What Is MDI? Methylenediphenyl diisocyanate (MDI) is used in the production of polyurethanes for many applications, including the manufacture of rigid polyurethane foams used for home and refrigerator insulation. Insulation made with MDI can help consumers conserve energy.
What is deblocking temperature?
the deblocking temperature range of ε-CL blocked adduct is. about 140-200oC. The deblocking temperature range of. benzotriazole blocked and ε-CL/benzotriazole blocked. adducts are 150-210 and 150-200oC, respectively.
What kind of hardener is HDI based polyisocyanate?
HDI based Polyisocyanate This hardener is aliphatic isocyanate based polyisocyanates. It is applied to autimobile repair and general industry
How is aliphatic polyisocyanate used in polyurethane coatings?
Aliphatic polyisocyanate for lightfast and weather-resistant twopack polyurethane coatings. It is an approximately 75% solids solution in a 1:1 blend of 1- methoxy-2-propyl acetate and xylene. Aliphatic polyisocyanate for lightfast and weather-resistant twopack polyurethane coatings.
What kind of polyisocyanate is basonat Hi series?
Aliphatic polyisocyanate for lightfast and weather-resistant twopack polyurethane coatings. It is an approximately 75% solids solution in a 1:1 blend of nbutyl acetate and xylene. BASONAT HI series offers excellent gloss retention and light stability with outstanding weather, chemical, and abrasion resistance.
Which is the best aliphatic polyisocyanate for twopacks?
Aliphatic polyisocyanate for lightfast and weather-resistant twopack polyurethane coatings. It is an approximately 75% solids solution in a 1:1 blend of nbutyl acetate and xylene.