Process for preparing phosphorus-modified epoxy resins
AssigneeHoechst Aktiengesellschaft
InventorsSebastian Horold, Hans-Peter Schmitz
Life of this patent
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Abstract
The invention relates to a process for preparing soluble and/or meltable phosphorus-modified epoxy resins, which comprises reacting a polyepoxide compound having at least 2 epoxide groups per molecule with carboxyl-containing phosphinic or phosphonic acids.
Claims14
A process for preparing soluble and/or meltable, phosphorous-modified epoxy resins, which comprises reacting a polyepoxide compound having at least 2 epoxide groups per molecule with carboxyl-containing phosphinic or phosphonic acids of the formula (I) or (II) ##STR5## in which R is a linear or branched alkyl, cycloalkyl, aryl or alkylaryl group having 1 to 18 carbon atoms or is hydrogen, R' is a linear or branched alkylene, cycloalkylene or alkylarylene group having 1 to 18 carbon atoms and R" is a linear or branched alkyl, cycloalkyl, aryl or alkylaryl group having 1 to 18 carbon atoms.
A process for preparing soluble and/or meltable, phosphorous-modified epoxy resins, which comprises reacting a polyepoxide compound having at least 2 epoxide groups per molecule with carboxylic acid group-containing phosphinic or phosphonic acids of the formula (I) or (II) ##STR6## in which R is a linear or branched alkyl, cycloalkyl, aryl or alkyaryl group having 1 to 6 carbon atoms and R' is a linear or branched alkylene or cycloalkylene, alkylarylene group having 1 to 18 carbon atoms.
Dependencies are inferred from the claim text.