1. Synonyms

1,1’-methylenebis(4-isocyanato)-benzene;para,para’-diphenylmethanediisocyanate;para,para’-methylenebis(phenylisoChemicalbookcyanate);Rubinate44;RubinateLF-168;rubinate44;METHYLENEBIS(P-PHENYLISOCYANATE);METHYLENEDIPHENYL4,4'-DIISOCYANATE

2. Usage

4,4'-Diphenylmethane diisocyanate (MDI) is a chemical compound widely used in various industries. Here's a brief overview of its usage:

1. Polyurethane production: MDI is a key component in the production of polyurethane foams, coatings, adhesives, and elastomers. It reacts with polyols to form a polyurethane network, resulting in the creation of a wide range of products with different properties. These products are used in construction, automotive, furniture, and insulation industries.
2. Insulation materials: MDI is commonly used in the manufacturing of rigid polyurethane foam insulation materials. Due to its excellent insulating properties, it is extensively used in the construction industry for thermal insulation in buildings, refrigeration units, and appliances.
3. Automotive industry: MDI is used in the production of various automotive components. It is used as a raw material in the manufacturing of seat cushions, dashboards, steering wheels, and interior trim parts. MDI-based polyurethane provides excellent comfort, durability, and impact resistance, making it an ideal choice for automotive applications.
4. Coatings and adhesives: MDI is employed in the production of coatings and adhesives due to its excellent adhesive properties, durability, and chemical resistance. It is used in the formulation of paints, varnishes, and adhesives for bonding different materials together.
5. Furniture and bedding: MDI is utilized in the production of flexible polyurethane foam used in furniture and bedding applications. It offers comfort, support, and durability in mattresses, pillows, cushions, and upholstery.

It is important to note that MDI is a hazardous substance and requires proper handling and safety precautions during its storage, transportation, and usage.