Compounds having a stabilizing effect, method for producing said compounds, composition containing said stabilizing compounds, and uses of the compounds
AssigneeFraunhofer-Gesellschaftzurförderung der angewandten Forschung e.V.
InventorsJohannes Fischer, Elke Metzsch-Zillingen, Rudolf Pfaendner
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Abstract
The invention relates to compounds of a new type which have a stabilizing effect and in particular provide stabilization with respect to oxidative thermal and/or actinic decomposition of or damage to organic materials. The compounds are represented by general formula I specified below. The invention further relates to a method for producing such compounds, to compositions containing said compound, to a method for stabilizing organic compounds by means of the stabilizing compounds, and to the use of the stabilizing compounds to stabilize organic materials.
Claims13
A compound selected from the group consisting of
- wherein Z is
- and wherein the variables B, D, R, b, x, y, and z each has the following definition independently of one another:
- B O or NH;
- D a linear or branched aliphatic residue having 1 to 12 carbon atoms;
- R a residue having at least one sterically hindered hydroxyphenyl residue;
- b 0 or 1;
- x 0 to 12;
- y 1 to 4;
- and
- z 2, 3, or 4,
- wherein the at least one sterically hindered hydroxyphenyl residue has the formula:
- wherein
- E is the same or different on every occurrence and represents a linear aliphatic, branched aliphatic, or cycloaliphatic alkyl residue having 1 to 18 carbon atoms, an aromatic residue having 6 to 36 carbon atoms, or hydrogen;
- a is 1 or 0;
- and
- c is 0, 1, 2, 3, or 4.
Dependencies are inferred from the claim text.