Abstract: Phosphobetaine Compounds of the formula ##STR1## wherein A is selected from O.sup.-, OM and --O--Y--R+B is selected from O.sup.- and OM.sup.-X.sup.- is an anionZ is an integer from 0 to 2 with the proviso that only one of A and B can be O.sup.- and Z is of a value necessary for charge balance and R is an amidoamine reactant moiety.

Abstract: Novel phosphate quaternary compound of the formula ##STR1## wherein R is a tertiary amine radical of from 6 to 40 carbon atoms; andX is an anion.

Abstract: Metal plates, e.g., of magnesium, zinc or copper, suitable for chemical milling and etching operations to produce photoengraving plates, printed circuit boards, nameplates, etc., comprising a metal layer and, adhered thereto, a plastic film layer having a thickness substantially smaller than that of the metal layer. The resulting composite laminates have proved outstandingly useful in permitting the employment of thinner metal layers, thus resulting in lighter weight and less expensive plates, yet retaining the required resistance to the chemical milling or etching process without impairment of mechanical stability and other desirable properties of the plate.