Functional organophosphonic acid esters as preservative adhesion promoting agents and coating for metals
First Claim
1. A method of protecting the surface of a metal which consists essentially of applying to said metal surface an organophosphorus compound of the formula ##STR13## wherein a = 0 or 1R is a branched or unbranched chain bivalent alkylene radical of 1 to 12 carbon atoms which is substituted or unsubstituted and can contain in the chain structures ##STR14## R'"'"' is a branched or unbranched chain alkyl radical of 1 to 12 carbon atoms which can be halogen substituted and which can contain in the chain structure ##STR15## X is an epoxy ring, halogen, alkenyl, carboxylic acid ester residue, amino, isocyanato, isothiocyanato, urea, thiourea, urethano, alkyl substituted thio radical or the radical of a heterocyclic ring containing O, S or N in the ring structure.
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Abstract
A method for protecting the surface of a metal surface which comprises applying to said surface an organophosphorus compound of the formula ##STR1## wherein A IS 0 OR 1
R is a branched or unbranched chained bivalent alkylene radical of 1 to 12 carbon atoms which is substituted or unsubstituted and can contain in the chain structure --O--, --S--, ##STR2## R'"'"' is a branched or unbranched alkyl radical of 1 to 12 carbon atoms which can be halogen substituted and can contain in the chain structure ##STR3## X is an epoxy ring, halogen, alkylene, carboxylic acid ester residue, amino, isocyanato, isothiocyanato, urea, thiourea, urethano, alkyl substituted thio radical or the radical or a heterocyclic ring containing O, S, or N in the ring structure; a new organophosphorus compounds having the formula set forth above and more particularly defined by specific chemical structures.
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Citations
26 Claims
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1. A method of protecting the surface of a metal which consists essentially of applying to said metal surface an organophosphorus compound of the formula ##STR13## wherein a = 0 or 1
R is a branched or unbranched chain bivalent alkylene radical of 1 to 12 carbon atoms which is substituted or unsubstituted and can contain in the chain structures ##STR14## R'"'"' is a branched or unbranched chain alkyl radical of 1 to 12 carbon atoms which can be halogen substituted and which can contain in the chain structure ##STR15## X is an epoxy ring, halogen, alkenyl, carboxylic acid ester residue, amino, isocyanato, isothiocyanato, urea, thiourea, urethano, alkyl substituted thio radical or the radical of a heterocyclic ring containing O, S or N in the ring structure.
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18. A metal protected by a coating of an organophosphorus compound of the formula ##STR16## wherein a = 0 or 1
R is a branched or unbranched chain bivalent alkylene radical of 1 to 12 carbon atoms which is substituted or unsubstituted and can contain in the chain structures ##STR17## R'"'"' is a branched or unbranched chain alkyl radical of 1 to 12 carbon atoms which can be halogen substituted and which can contain in the chain structure ##STR18## X is an epoxy ring, halogen, alkenyl, carboxylic acid ester residue, amino, isocyanato, isothiocyanato, urea, thiourea, urethano, alkyl substituted thio radical or the radical of a heterocyclic ring containing O, S or N in the ring structure.
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