High molecular weight copolyester resins having a high degree of alternating structure
AssigneeHooker Chemicals & Plastics Corporation
InventorsEdward V. Gouinlock, Jr., Jerold C. Rosenfeld
Life of this patent
Estimating the term…
Abstract
High molecular weight, linear aromatic polyesters having a very high degree of alternating microstructure are produced by reacting a hydroxyl-containing component with an excess of acid halide, recovering the bis adduct thus formed and thereafter polymerizing the bis adduct with additional hydroxy-containing components.
Claims11
A process for the production of high molecular weight, linear aromatic polyesters having an alternation index above 1.6 by reacting an organic diacid halide with a hydroxyl-containing component comprising a combination of a bisphenol and 5 to 95 mol percent of a glycol, said process comprising:
- a. adding one member of the combination of a hydroxyl-containing component to the diacid halide employing at least 3 mols of diacid halide per mol of hydroxyl-containing component,
- b. reacting the resulting mixture so as to form a bis-adduct,
- c. removing all of the unreacted diacid halide from the bis-adduct, and
- d. thereafter reacting the bis-adduct with a different member of the combination of hydroxyl-containing component so as to form the desired high molecular weight linear polyester,
- and wherein the diacid halide is terephthaloyl chloride, isophthaloyl chloride or a mixture thereof, the glycol has 2-20 carbon atoms, and the bisphenol has the formula ##STR5## in which Ar is aromatic, each T is independently selected from the group consisting of halogen, G or OG, each G is independently selected from the group consisting of alkyl, aryl, haloaryl, haloalkylaryl, alklaryl, cycloalkyl, halocycloalkyl, and haloalkyl, E is a bivalent alkylene, haloalkylene, cycloalkylene, halocycloalkylene, arylene, haloarylene, --O--, --S--, --SO--, --SO.sub.2 --, --SO.sub.3 --, --CO--, ##STR6## or GN<, m is 0 to the number of replaceable hydrogen atoms on E, each b is 0 to the number of replaceable hydrogen atoms and d is 0 or 1.
A linear aromatic polyester of components comprising an organic diacid halide and a hydroxyl-containing component comprising a combination of a bisphenol and 5 to about 95 mol percent of a glycol, said polyester having an intrinsic viscosity of at least about 0.6 dl/g in tetrachloroethane at 30.degree. C. and an alternation index of above 1.6 and wherein the diacid halide is terephthaloyl chloride, isophthaloyl chloride or a mixture thereof, the glycol has 2-20 carbon atoms, and the bisphenol has the formula ##STR7## in which Ar is aromatic, each T is independently selected from the group consisting of halogen, G and OG, each G is independently selected from the group consisting of alkyl, aryl, haloaryl, haloalkylaryl, alklaryl, cycloalkyl, halocycloalkyl, and haloalkyl, E is a bivalent alkylene, haloalkylene, cycloalkylene, halocycloalkylene, arylene, haloarylene, --O--, --S--, --SO--, --SO.sub.2 --, --SO.sub.3 --, --CO--, ##STR8## or GN<, m is 0 to the number of replaceable hydrogen atoms on E, each b is 0 to the number of replaceable hydrogen atoms on Ar, and d is 0 or l.
A high molecular weight, linear aromatic polyester of components comprising an organic diacid halide and a hydroxyl-containing component comprising a combination of a bisphenol and 15 to 85 mol percent of a glycol, said polyester having an intrinsic viscosity of at least about 0.6 dl/g in tetrachloroethane at 30.degree. C. and alternation index of above 1.6, and wherein the diacid halide is terephtaloyl chloride, isophthaloyl chloride of a mixture thereof, the glycol has 2-20 carbon atoms, and the bisphenol has the formula ##STR9## in which Ar is aromatic, each T is independently selected from the group consisting of halogen, G or OG, each G is independently selected from the group consisting of alkyl, aryl, haloaryl, haloalkyaryl, alkylaryl, cycloalkyl, halocycloalkyl, and haloalkyl, E is a bivalent alkylene, haloalkylene, cycloalkylene, halocycloalkylene, arylene, haloarylene, --O--, --S--, --SO--, --SO.sub.2 --, --SO.sub.3 --, --Co--, ##STR10## or GN<, m is 0 to the number of replaceable hydrogen atoms on E, each b is 0 to the number of replaceable hydrogen atoms on Ar, and d is 0 or l.
Dependencies are inferred from the claim text.