发明名称 ORGANOPHOSPHONIC POLYMERS AND THEIR USE AS STABILIZERS FOR AQUEOUS SOLUTIONS OF HYDROGEN PEROXYDE
摘要 <p>Organophosphonic polymers of general formula (I) where Y is a methyl or ethyl group or hydrogen and Z is hydrogen, the ammonium group, an alcaline metal or an alcaline earth metal. A method for producing these polymers comprises three stages: production of a monomer by reacting a ketene with diethylphosphite in the presence of an acid catalyst; polymerization of the monomer in solution in a solvent by means of a free radical initiator; hydrolysis of the polymer obtained by means of a concentrated solution of inorganic or inorganic based acid. Aqueous solution of hydrogen peroxyde stabilized by means of said polymers.</p>
申请公布号 WO1992006122(A1) 申请公布日期 1992.04.16
申请号 EP1991001846 申请日期 1991.09.24
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