Production of aromatic polyketones
AssigneeImperial Chemical Industries PLC
InventorJohn B. Rose
Life of this patent
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Abstract
Production of an aromatic polyketone by reacting in the presence of a fluoroalkane sulphonic acid the reactants selected from: (a) a mixture of (i) at least one aromatic diacyl halide WOC--Ar--COW where --Ar'-- is a divalent aromatic radical, W is halogen and COW is an aromatically bound acyl halide group, which diacyl halide is polymerizable with the at least one aromatic compound of (ii), and (ii) at least one aromatic compound H--Ar'--H where --Ar'-- is a divalent aromatic radical and H is an aromatically bound hydrogen atom, which compound is polymerizable with the at least one diacyl halide of (i); (b) at least one aromatic monoacyl halide H--Ar"--COW where --Ar"-- is a divalent aromatic radical and H, W, and COW are as defined in (a), which monoacyl halide is self-polymerizable; and (c) a combination of (a) and (b).
Claims10
A process for the production of an aromatic polyketone which comprises reacting at a temperature of from 40.degree. to 200.degree. C. in the presence of a fluoroalkane sulphonic acid the reactants selected from the group consisting of:
- (a) a mixture of substantially equimolar amounts of
- (i) at least one aromatic diacyl halide of formula
- WOC--Ar--COW
- where --Ar-- is a divalent aromatic radical, W is halogen and COW is an aromatically bound acyl halide group, which diacyl halide is polymerisable with the at least one aromatic compound of (a)(ii), and
- (ii) at least one aromatic compound of formula
- H--Ar'--H
- where --Ar'-- is a divalent aromatic radical and H is an aromatically bound hydrogen atom, which compound is polymerisable with the at least one diacyl halide of (a)(i)
- (b) at least one aromatic monoacyl halide of formula
- H--Ar"--COW
- where --Ar"-- is a divalent aromatic radical and H is an aromatically bound hydrogen atom, W is halogen, and COW is an aromatically bound acyl halide group, which monoacyl halide is self-polymerisable, and
- (c) a combination of (a) and (b).
Dependencies are inferred from the claim text.