Method for improving disperse dyeability of polyesters and product thereof
AssigneeAkzona Incorporated
InventorHarold Roy Penton, Jr.
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Abstract
The disperse dyeability of a fiber or film forming polyester resin is improved by dispersing substantially uniformly in a polyester resin in which it is at least partially soluble a compound having the formula ##STR1## wherein R is benzyl or phenethyl, R.sub.1 is ethylene or propylene, R.sub.2 is hydrogen or lower alkyl and M is an alkali metal.
Claims12
A method for improving the disperse dyeability of a film or fiber forming polyester which comprises dispersing in the polyester a compound of the formula ##STR4## wherein R is benzyl or phenethyl, R.sub.1 is ethylene or propylene, R.sub.2 is hydrogen or lower alkyl and M is an alkali metal.
A polyester having improved disperse dyeability containing a compound of the formula ##STR5## wherein R is benzyl or phenethyl, R.sub.1 is ethylene or propylene, R.sub.2 is hydrogen or lower alkyl and M is an alkali metal.
Dependencies are inferred from the claim text.