THIOIMIDAZOLIDINE DERIVATIVES AS LIGHT STABILIZERS FOR POLYMERS

Title:

THIOIMIDAZOLIDINE DERIVATIVES AS LIGHT STABILIZERS FOR POLYMERS

Document Type and Number:

WIPO Patent Application WO2001062739

Kind Code:

A3

Abstract:

A compound of the formula (I) wherein G1, G2, G3 and G4 are independently of one another C1-C18alkyl or C5-C12cycloalkyl or the radicals G1 and G2 and the radicals G3 and G4 form independently of one another, together with the carbon atom they are attached to, C5-C12cycloalkyl; R is hydrogen, C1-C18alkyl, oxyl, -OH, -CH2CN, C3-C6alkenyl, C3-C8alkynyl, C7-C12phenylalkyl unsubstituted or substituted on the phenyl radical by C1-C4alkyl and/or C1-C4alkoxy; C1-C8acyl, C1-C18alkoxy, C1-C18hydroxyalkoxy, C2-C18alkenyloxy, C5-C12cycloalkoxy, C7-C12phenylalkoxy unsubstituted or substituted on the phenyl radical by C1-C4alkyl and/or C1-C4alkoxy; C1-C18alkanoyloxy, (C1-C18alkoxy)carbonyl, glycidyl or a group -CH2CH(OH)(G) with G being hydrogen, methyl or phenyl; n is 1, 2, 3 or 4; and X is an organic radical of a valency equal to n; and when n is 2, 3 or 4, each of the radicals G1, G2, G3, G4 and R can have the same or a different meaning in the units of the formula (II), is useful for stabilizing an organic material against degradation induced by light, heat or oxidation.

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Inventors:

LAZZARI DARIO (IT)
ZAGNONI GRAZIANO (IT)

Application Number:

PCT/EP2001/001829

Publication Date:

February 14, 2002

Filing Date:

February 19, 2001

Export Citation:

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Assignee:

CIBA SC HOLDING AG (CH)
CIBA SPEC CHEM SPA (IT)
LAZZARI DARIO (IT)
ZAGNONI GRAZIANO (IT)

International Classes:

C07D233/42; C07D403/12; C07D403/14; C07D405/12; C07D405/14; C08K5/3445; C08K5/378; C08L21/00; C08L23/00; C08L55/02; C08L101/00; C09K15/30; G03C1/34; (IPC1-7): C07D233/42; C08K5/3445; C07D405/12

Foreign References:

DE2042533A1	1972-03-02
US3532703A	1970-10-06
DE2621947A1	1976-12-09
US3971757A	1976-07-27

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