Back to results
US 5,175,349 AGranted
Stabilization of organic polyisocyanates
AssigneeBayer Aktiengesellschaft
InventorsPramod Gupta, Christian Konig, Hans-Jurgen Rabe, Hans-Wilhelm Engels, Wilfried Nolte, Chiraranjan Podder
Life of this patent
Estimating the term…
Abstract
The present invention relates to the use of nucleus-substituted 4-hydroxyphenyl propionic acid compounds for stabilizing organic polyisocyanates.
Claims1
A process for stabilizing an organic polyisocyanate comprising adding to the polyisocyanate an effective amount of a compound corresponding to the following formula:
- ##STR7## in which R.sub.1 and R.sub.2 are the same or different and represent a C.sub.1 to C.sub.8 alkyl radical.
Dependencies are inferred from the claim text.