Water soluble aminoplast-ether copolymers
AssigneeUnited Catalysts Inc.
InventorsCharles W. Glancy, Alan L. Steinmetz
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Abstract
A linear aminoplast-ether copolymer of the formula: ##STR1## where the divalent R.sub.01 contains a divalent alkyleneoxy containing moiety, Amp is the skeletal residue of an aminoplast, R is hydrogen, alkyl containing 1 to about 4 carbon atoms, and acyl containing 1 to about 4 carbon atoms, p is a positive number that is equal to the free valence of Amp minus 2, RO is bonded to alkylene units of Amp, and a is a number greater than 1. The method for making the copolymer is described.
Claims115
A linear aminoplast-ether copolymer of the formula:
- ##STR24## where the divalent R.sub.01 contains a divalent alkyleneoxy containing moiety, Amp is the skeletal residue of an aminoplast, R is hydrogen, alkyl containing 1 to about 4 carbon atoms, or acyl containing 1 to about 4 carbon atoms, p is a positive number that is equal to the free valence of Amp minus 2, RO is bonded to alkylene units of Amp, and a is a number greater than 1, in the presence of an acid catalyst.
A linear aminoplast-ether copolymer product of a polyfunctional aminoplast with a polyalkylene oxide of the formula:
- H-- Alkylene Oxide --H
- where "alkylene oxide" is a divalent moiety containing at least two alkylene oxide units whether joined or separated, and the terminal H groups are active hydrogen, in the presence of an acid catalyst provided in a catalytically effective amount.
A method for making a linear aminoplast-ether copolymer which comprises the polymerization reaction of a polyfunctional aminoplast with an ether containing two active hydrogen terminal groups, in the presence of an acid catalyst provided in catalytically effective amounts until the desired molecular weight is achieved.
Dependencies are inferred from the claim text.