Process for preparing polymeric oximes
AssigneePolaroid Corporation
InventorMichael J. Grasshoff
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Abstract
A process for preparing high molecular weight polymeric ketoximes and aldoximes is disclosed which comprises providing a solution of a monomeric ketoxime or aldoxime in an aqueous acidic solvent system, the solution having a pH of up to about pH 1.5, and polymerizing the dissolved monomeric ketoxime or aldoxime in the presence of an aqueous acid-soluble polymerization initiating agent.
Claims31
A process for preparing a polymeric oxime comprising the steps of providing a solution of a monomeric oxime in an aqueous acidic solvent system, said monomeric oxime being of the formula ##STR16## wherein R is hydrogen or lower alkyl, R.sup.1 is hydrogen, lower alkyl, aryl, aralkyl, or alkaryl, and L is a divalent organic linking group which is stable under the conditions of said process and which does not deleteriously affect the conduct of said process, said solution having a pH of up to about 1.5;
- and polymerizing said monomeric oxime dissolved in said aqueous acidic solvent system in the presence of an aqueous acid-soluble polymerization initiating agent.
Dependencies are inferred from the claim text.