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US 5,354,813 AGranted
Polymeric mordants for dyes and the like
AssigneeMinnesota Mining and Manufacturing Company
InventorsOmar Farooq, Mahfuza B. Ali
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Abstract
Novel classes of polymeric mordants based upon poly(vinylpyridine), poly(N-vinylimidazoles), and poly(meth)acrylates are disclosed. The polymeric mordants contain N-heterocycles which are N-quaternized by different types of alkylated hydrazones, semicarbazones, and multiple-quaternized alkylated salts serving as pendant groups.
Claims1
A mordant comprising units of the following formula:
- ##STR20## wherein:
- X represents an anion and n represents an integer of 2 or greater.
Dependencies are inferred from the claim text.