N-carboxy-alkane-aminoalkane-diphosphonic acids, n-...

Details N-carboxy-alkane-aminoalkane-diphosphonic acids, n-... N-carboxy-alkane-aminoalkane-diphosphonic acids, n-...

C - Chemistry, Metallurgy

07

F

260/501.1, 260/2

C07F 9/38 (2006.01) C02F 5/14 (2006.01) G03C 5/305 (2006.01)

Patent

CA 1106843

ABSTRACT OF THE DISCLOSURE An N-carboxy-alkane-aminoalkane-diphosphonic acids, N-carboxy-alkane-azacycloalkane-diphosphonic acids and N-carboxy- alkane-aminoaryl-alkane-diphosphonic acid having the general formula Image wherein R is H, CH3, -(CH2)10CH3, C6H5, C2H4OH or CH2COOH, R1 is PO3H2,-R'2 is H, CH3 or R3 or together with R1 forms a ring of formula -(CH2)5- and R3 is (CH2)mCOOH where m is 2 to 12, -CH2-C(CH3)2-COOH or Image . The compounds are suitable particularly for corrosion inhibitors and for products used in the treatment of service water.

309547

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