PROCESS FOR PREPARING PYRROLIDONE-5,5-DIPHOSPHONIC ACIDS

• Main Authors: PLOGER, WALTER, SCHMIDT-DUNKER, MANFRED, GLOXHUBER, CHRISTIAN
• Format: Patent
• Language: English; French
• Published: 28.11.1978

Pyrrolidone-5,5-diphosphonic acids having the formula wherein R is a member selected from the group consisting of hydrogen and alkyl having from 1 to 6 carbon atoms; as well as their water-soluble salts. The pyrrolidone5,5-aiphosphonic acids are excellent sequestering agents especially for alkaline...