Acylcyanamide compounds and their production
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorsChristian Hase, Bernd Wegemund, Werner Erwied, Dieter Krampitz
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Abstract
Acylcyanamides are disclosed having the formula ##STR1## in which the symbol R represents a straight-chain or branched chain alkyl or alkenyl group having from about 5 to about 21 carbon atoms, which group may be substituted by OH--, O--CH.sub.2 --CH.sub.2 --OH-- and/or O--R'-- groups, where the symbol R' represents an alkyl group having from 1 to about 4 carbon atoms and wherein M is a manganese, iron, cobalt, nickel, zinc, cadmium, copper and/or lead. The compounds of the invention are useful as heat stabilizers for chlorine-containing polymers.
Claims26
Acylcyanamide having the formula ##STR4## in which the symbol R represents a straight-chain or branched chain alkyl or alkenyl group having from about 5 to about 21 carbon atoms, which group may be substituted by at least one OH--, O--CH.sub.2 --CH.sub.2 --OH-- or O--R'-- group, in which the symbol R' represents an alkyl group having from 1 to about 4 carbon atoms;
- and in which the symbol M represents a manganese, iron, cobalt, nickel, zinc, cadmium, copper, or lead cation.
A process for producing acylcyanamides having the formula ##STR5## in which the symbol R represents a straight-chain or branched chain alkyl or alkenyl, which groups may be substituted by OH--, O--CH.sub.2 --CH.sub.2 --OH-- and/or O--R' in which the symbol R' represents an alkyl group having from 1 to about 4 carbon atoms and in which M.sup.2+ represents a manganese, iron, cobalt, nickel, zinc, cadmium, copper and/or lead cation;
- which comprises reacting at above room temperature an acylcyanamide alkali metal salt having the formula ##STR6## in which R has the same meaning as in Formula I and M.sup.+ is an alkali metal cation;
- with about a stoichiometric quantity of a water-soluble manganese, iron, cobalt, nickel, zinc, cadmium, copper and/or lead salt, said reaction being carried out in an aqueous methanolic solution and isolating the resulting acylcyanamides of Formula I from said reaction mixture.
Dependencies are inferred from the claim text.