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US 4,063,008 AGranted
Selenium-containing polymers and process for producing same
AssigneeDirector-General of Agency of Industrial Science and Technology
InventorMasao Kato
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AssigneeDirector-General of Agency of Industrial Science and Technology
InventorMasao Kato
Estimating the term…
A polymer or copolymer characterized in that it contains a monomer unit of he general formula: ##STR1## wherein R stands for a member selected from the group consisting of hydrogen atom and a phenyl group and R.sub.1 for a member selected from the group consisting of hydrogen atom and methyl group. This polymer or copolymer is produced, for example, by diazotizing a polymer or copolymer containing a monomer unit of the general formula: ##STR2## wherein R.sub.1 has the same meaning as given above, TO FORM A DIAZOTIZED POLYMER OR COPOLYMER CONTAINING A MONOMER UNIT OF THE GENERAL FORMULA: ##STR3## wherein R.sub.1 has the same meaning as given above and X stand for an anion, and then either reacting the diazotized polymer or copolymer with an alkali metal selenocyanate and subjecting the reaction product to an alkali treatment or reacting the diazotized polymer or copolymer with an alkali metal salt of a selenophenol compound.
A process for the production of selenium-containing polymers which are composed of a recurring unit of the general formula:
A process for the production of selenium-containing polymers which are composed of a recurring unit of the general formula:
Dependencies are inferred from the claim text.