Use of polynuclear phenolic compounds as stabilisers

C - Chemistry – Metallurgy – 10 – L

Patent

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Details

C10L 1/2383 (2006.01) C07C 215/50 (2006.01) C07D 265/16 (2006.01) C08F 8/32 (2006.01) C08G 14/073 (2006.01) C08G 61/12 (2006.01) C08G 73/02 (2006.01) C09K 15/24 (2006.01) C09K 15/30 (2006.01) C10L 1/222 (2006.01) C10L 1/233 (2006.01) C10L 1/238 (2006.01) C10L 10/18 (2006.01) C10M 159/16 (2006.01)

Patent

CA 2641399

The invention relates to the use of polynuclear phenolic compounds with up to 20 bezene nuclei per molecule, obtained by reaction of a tetrahydrobenzoxazine I, where R1 = a hydrocarbon group and R2, R3, R4and R5 independently = H, OH, or hydrocarbon groups, with one or more of the same or different phenols II, where R7, R8, R9 and R10 independently = H, OH or hydrocarbon groups and/or with one or more of the same or different tetrahydrobenzoxazines I, with the proviso that at least one of the substituents has 13 to 3,000 carbon atoms and the remaining substituents, when hydrocarbon groups, have 1 to 20 carbon atoms, as stabilisers for stabilising inanimate organic materials against the effects of light, acid and heat.

L'invention concerne l'utilisation de composés phénoliques à plusieurs noyaux, comportant jusqu'à 20 noyaux de benzol par molécule, obtenus par mise en réaction d'une tétrahydrobenzoxazine I, R1 représentant un groupe hydrocarbyle et R2, R3, R4 et R5 désignant indépendamment l'un de l'autre des atomes d'hydrogène, des groupes hydroxyle ou des groupes hydrocarbyle, avec un ou plusieurs phénols II identiques ou différents, R7, R8, R9 et R10 signifiant indépendamment l'un de l'autre des atomes d'hydrogène, des groupes hydroxyle ou des groupes hydrocarbyle, et/ou avec un ou plusieurs tétrahydrobenzoxazines I identiques ou différents, à la condition qu'au moins un des substituants comporte 13 à 3000 atomes de carbone et que les autres substituants, lorsqu'ils représentent des groupes hydrocarbyle, comprennent chacun 1 à 20 atomes de carbone. Ces composés phénoliques sont utilisés comme stabilisateurs pour stabiliser une matière organique non vivante contre l'effet de la lumière, de l'oxygène et de la chaleur.

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