1,1'-Methylenebis(4-isocyanatobenzene) homopolymer

Synonyms

Benzene, 1,1'-methylenebis(4-isocyanato-, homopolymer; [ChemIDplus] 4,4'-MDI homopolymer; 4,4’-Diphenyl methanediisocyanate homopolymer; [EPA] 4,4'-Methylenediphenyl diisocyanate, oligomers; 1-Isocyanato-4-[(4-isocyanatophenyl)methyl]benzene homopolymer; [ECHA REACH Registrations]

Category

Polymers

Sources/Uses

Used in industrial flexible and rigid foams, coatings, adhesives, and sealants, in elastomer and other polymer production, in composite materials, and foundries; [ECHA REACH Registrations]

Comments

Causes acute pulmonary edema in 6-hour acute studies of rats; [RTECS] A skin and strong eye irritant; May cause skin and respiratory sensitization; Harmful by inhalation; Suspected carcinogen; [ECHA REACH Registrations] See "Methylenediphenyl diisocyanate."

Biomedical References

LCLo (rat) = 490 mg/m3/4hr

Yes

Yes

Diseases

Occupational diseases associated with exposure to this agent:

• Asthma, occupational
• Contact dermatitis, allergic

Processes

Industrial Processes with risk of exposure:

• Molding and Core Making
• Painting (Pigments, Binders, and Biocides)
• Plastic Composites Manufacturing
• Working with Glues and Adhesives