Patent ID: 6387853
Filing Date: 2002-05-14
Classification: C08B,C09K,Y10S

Abstract:
A method for forming derivatized polymer material in a slurry, comprising:combining an organic solvent based slurry containing polymer material with a basic compound or alkaline material at ambient temperature to activate derivatizing sites on the polymer material; then combining said slurry containing polymer material with a derivatizing agent at ambient temperature to cause at least partial mixing to occur between said polymer material and said derivatizing agent; and allowing said polymer material and said derivatizing agent to at least partially react with no heating to form derivatized polymer material contained in said slurry; wherein said slurry containing polymer material is combined with said basic compound or alkaline material prior to combination of said slurry containing polymer material with said derivatizing agent; wherein said polymer material comprises a hydratable polysaccharide, hydratable derivatized polysaccharide, or a mixture thereof; and wherein said organic solvent based slurry comprises a hydrocarbon solvent that is at least one of diesel, kerosene, refined aliphatic oil, or a mixture thereof.