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US 4,219,629 AGranted
P-Oxybenzoyl copolyesters comprising thiodiphenol components and having improved flexibility and solubility in organic solvents
AssigneeDart Industries Inc.
InventorRoger S. Storm
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Abstract
A p-oxybenzoyl copolyester which is flexible and soluble in organic solvents has recurring moieties of the formulas ##STR1## wherein the carbonyl groups of (B) are meta or para to each other and the oxygen atoms of (C) are meta or para to the sulfur atom thereof. Also described are organic solvent solutions of the p-oxybenzoyl copolyesters, molded articles made thereof and flexible coatings of such copolyesters on substrates.
Claims24
A p-oxybenzoyl copolyester having a molecular weight in the range of 500 to 72,000, which is flexible and soluble in organic solvents and which comprises recurring moieties of the following formulas:
- ##STR3## wherein y:z equals 0.1 to 10;
- x:z equals 0.1 to 10;
- x:y equals 0.9 to 1.1;
- x+y+z equals 20 to 600;
- the carbonyl groups of (B) are meta or para to each other;
- and the oxygen atoms of (C) are meta or para to the sulfur atom thereof.
3 more elements
Dependencies are inferred from the claim text.