Nitrite,nitrate and sulfate esters of polyhydroxy polymers
Abstract
Abstract THE NOVEL POLYMER NITRITE ESTER COMPOUNDS AND THE PROCESS OF PREPARING THEM BY NITROSATING A MIXTURE CONTAINING A POLYDROXYPOLYMER AND A SUITABLE SOLVENT AT A TEMPERATURE OF 0-50*C. FURTHER, THE NOVEL PROCESS OF PREPARING A WATER SOLUBLE POLYMER NITRATE ESTER BY HEATING THE CORRESPONDING POLYMER NITRITE ESTER IN THE PRESENCE OF NITRIC ACID TO A TEMPERATURE RANGING FROM 60-110*C. FOR A PERIOD OF ONE-QUARTER TO TWO HOURS. ALSO AN INTEGRAL PART OF THIS INVENTION ARE NOVEL POLYMER SULFATE ESTER SALTS AND THE PROCESS OF PREPARING THEM COMPRISING THE STEPS OF (1) SULFATING THE CORRESPONDING POLYMER NITRITE ESTER AT A TEMPERATURE RANGING FROM ABOUT 0 TO ABOUT 25*C. THE OBTAIN THE CORRESPONDING POLYMER NITRITE SULFURIC ACID ESTER, (2) REACTING THE REACTION MIXTURE OF STEP 1 WITH A PROTIC SOLVENT TO OBTAIN THE POLYMER SULFATE ESTER, AND (3) NEUTRALIZING OR SLIGHTLY ALKALIZING THE POLYMER SULFATE ESTER REACTION MIXTURE WITH AN ALKALI TO OBTAIN THE CORRESPONDING POLYMER SULFATE ESTER SLAT. THE POLYMER SULFATE ESTER SALTS HAVE VALUABLE THICKENING PROPERTIES USEFUL TO FORM VISCOUS PRODUCTS.
Inventors
- 👤 Richard G Schweiger
Bibliographic Details
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