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US 5,183,582 AGranted
Blowing agent-containing polymeric MDI compositions
AssigneeBASF SE
InventorsJimmy L. Patterson, Robert E. Riley
Life of this patent
Estimating the term…
Abstract
Mixtures of medium viscosity polymeric MDI and HCFC-22 have unexpectedly low vapor pressure, rendering such mixtures suitable for the preparation of polyurethane and polyisocyanate foams.
Claims5
A composition comprising medium viscosity polymeric MDI methylenediphenylenediisocyanate having a viscosity of from 400 to 1200 centipoise when measured at 25.degree. C., and monochlorodifluoromethane.
Dependencies are inferred from the claim text.