Thiouracils as stabilizers for chlorine-containing polymers

Details Thiouracils as stabilizers for chlorine-containing polymers Thiouracils as stabilizers for chlorine-containing polymers

C - Chemistry, Metallurgy

07

D

260/258, 400/307

C07D 239/56 (2006.01) C08K 5/36 (2006.01) C08K 5/39 (2006.01)

Patent

CA 1336600

Composition containing a) a chlorine-containing polymer and b) at leastone compound of the formula I (I) Image in which n is 1 or 2, R1 is C1-C18alkyl, C3-C18alkenyl, phenyl, C7-C12- phenylalkyl or C7-C12phenylalkyl which is substituted on the phenyl ring by C1-C4alkyl and/or chlorine, R2 is C1-C18alkyl, a group Image or C2-C22alkyl which is substituted by hydroxyl or a group -XR3, in which X is oxygen or sulfur and R3 is C1-C18alkyl, phenyl or C7-C12phenylalkyl, or R2 is furthermore C3-C18alkenyl, C7-C12phenylalkyl, C7-Cl2phenylalkyl which is substituted on the phenyl ring by C1-C4alkyl and/or chlorine, di(C1-C4alkyl)thiocarbamoyl or a group of the formula IIa or IIb Image ' Image (IIa) (IIb) in which X1 is C1-C17alkyl, C3-C17alkenyl, C5-C7cycloalkyl, C1-C4alkyl- substituted C5-C7cycloalkyl, phenyl, C1-C4alkyl- and/or chlorine-substi- tuted phenyl, C7-C12phenylalkyl, C7-C12phenylalkyl which is substituted on the phenyl ring by C1-C4alkyl and/or chlorine, C1-C10alkylthio or di(C1-C4alkyl)amino, and X2 is C1-C18alkyl, C3-C18alkenyl, C5-C7cyclo- alkyl, C1-C4alkyl-substituted C5-C7cycloalkyl, phenyl, C1-C4alkyl- and/or chlorine-substituted phenyl, C7-C12phenylalkyl or C7-C12phenylalkyl which is substituted on the phenyl ring by C1-C4alkyl and/or chlorine, and, if n is 1, Y is hydrogen, di(C1-C4alkyl)thiocarbamoyl or a group of the formula IIa or IIb, and, if n is 2, Y is a group IIc or IId, Image Image (IIc) (IId) in which X3 is C1-C12alkylene or phenylene and X4 is C2-C12alkylene or C4-C8alkylene which is interrupted by 1 or 2 oxygen atoms, with the provisos that the radicals Y and R2 are identical, if R2 is di(C1-C4- alkyl)thiocarbamoyl or a group of the formula IIa or IIb, and the compound 3,6-dimethyl-2-thiouracil is excluded. Composition containing a) a chlorine-containing polymer, b) the compound 3,6-dimethyl-2-thiouracil and c) an epoxy compound. Novel compounds of the formula I are also described.

606793

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