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US 4,046,949 AGranted
Novel polymers from reaction of tricarboxylic anhydrides and hydrazines or hydrazides coated on substrate
AssigneePPG Industries, Inc.
InventorsKarl F. Schimmel, Marco Wismer
Life of this patent
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Abstract
Novel polymers formed from the reaction of tricarboxylic anhydrides and hydrazines or hydrazides which may be cross-linkable by further reaction with a hydrazine or hydrazide are disclosed.
Claims4
An article of manufacture comprising a polysalt coated on a metal substrate wherein said polysalt is represented by the structural formula:
- ##STR12## wherein R is trivalent organic radical having at least three carbon atoms, R' is an aliphatic cycloaliphatic monofunctional alkyl radical, R.sub.1 is a divalent organic radical selected from the group consisting essentially of alkylene, arylene, and heterocyclic;
- R.sub.2 and R.sub.3 are monovalent alkyl, aryl, aralkyl, cycloalkyl or hydrogen radicals and x and y are either 1 or 0.
An article of manufacture comprising a polysalt coated on a fibrous substrate wherein said polysalt is represented by the structural formula:
- ##STR13## wherein R is a trivalent organic radical having at least three carbon atoms, R' is an aliphatic cycloaliphatic monofunctional alkyl radical, R.sub.1 is a divalent organic radical selected from the group consisting essentially of alkylene, arylene, and heterocyclic;
- R.sub.2 and R.sub.3 are monovalent alkyl, aryl, aralkyl, cycloalkyl or hydrogen radicals and x and y are either 1 or 0.
An article of manufacture comprising a polysalt coated on a cellulosic substrate wherein said polysalt is represented by the structural formula:
- ##STR14## wherein R is a trivalent organic radical having at least three carbon atoms, R' is an aliphatic cycloaliphatic monofunctional alkyl radical, R.sub.1 is a divalent organic radical selected from the group consisting essentially of alkylene, arylene, and heterocyclic;
- R.sub.2 and R.sub.3 are monovalent alkyl, aryl, aralkyl, cycloalkyl or hydrogen radicals and x and y are either 1 or 0.
Dependencies are inferred from the claim text.