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US 5,393,828 AGranted
Chemical degradation of cured amino resins
AssigneeBASF SE
InventorsJuergen Weiser, Wolfgang Reuther, Erwin Hahn
Life of this patent
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Abstract
A process for chemically degrading cured amino resins comprises reacting cured amino resins, which may contain fillers, with a primary and/or secondary amine at from 40.degree. to 250.degree. C.
Claims6
A process for chemically degrading cured amino resins, which comprises reacting at least one cured amino resin with at least one amine selected from the group consisting of primary alkylamines, primary arylamines, secondary alkylamines, secondary arylamines;
- and alkanolamines, alkoxyamines, and polyamines in which at least one amine function has a hydrogen atom at from 40.degree. to 250.degree. C., wherein the amine is in molar excess related to the smallest monomer unit in the cured amino resin.
Dependencies are inferred from the claim text.