Novel water soluble polymer
Abstract
Abstract IN ABSTRACT THIS INVENTION IS DIRECTED TO A PROCESS FOR PREPARING A WATER SOLUBLE POLYMER COMPRISING HEATING AT ABOUT 125-250* C. A REACTION MIXTURE CONSISTING ESSENTIALLY OF AN INERT LIQUID MEDIUM BOILING AT ABOUT 120260* C. AT ABOUT 760 MILLIMETERS OF MERCURY ABSOLUTE PRESSURE, N-(ACETAMIDE)-IMINODIACETIC ACID AND A MEMBER SELECTED FROM A GROUP CONSISTING OF DIOLS HAVING THE FORMULA HO-G-OH, AMINO ALCOHOLS HAVING THE FORMULA HO-G-NH2, AND DIAMINES HAVING THE FORMULA H2N-G-NH2 WHEREIN G IS AN ALKYLENE GROUP HAVING 2-6 CARBON ATOMS. THE MOLE RATIO OF THE N-(ACETAMIDE)-IMINODIACETIC ACID TO THE GROUP MEMBER BEING ABOUT 1:08-1.2, TO FORM THE WATER SOLUBLE POLYMER AND WATER WHILE REMOVING THE WATER SUBSTANTIALLY AS IT IS FORMED, SEPARATING AND RECOVERING THE POLYMER, ALL AS RECITED HEREINAFTER.
Inventors
- 👤 Nelson S Marans
Bibliographic Details
Claims Analysis
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