3135-18-0

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InChI:InChI=1/C51H97O4P/c1-9-11-13-15-17-19-21-23-25-27-29-31-33-35-37-39-41-54-56(53,45-46-43-47(50(3,4)5)49(52)48(44-46)51(6,7)8)55-42-40-38-36-34-32-30-28-26-24-22-20-18-16-14-12-10-2/h43-44,52H,9-42,45H2,1-8H3

Relevant academic research and scientific papers

Thioether substituted hydroxybenzophenones and stabilized compositions

2-Hydroxybenzophenone derivatives substituted in the 4′-position by a thioether moiety exhibit enhanced absorption in the UV at longer wavelength. Compositions comprising organic material subject to actinic degradation are beneficially stabilized with such derivatives.

Amorphous modification of 1,1',1"-nitrilo(tri-2-propyl-tris-[2,2'-ethylidene-bis(4,6-di-tert-butylphenyl] phosphite)

The new amorphous modification of 1,1',1"-nitrilo{tri-2-propyl-tris-[2,2'-ethylidene-bis(4,6-di-tert-butylphenyl)]phosphite } is obtained by cooling rapidly said compound from the melt to ambient temperature. This amorphous form is an effective process stabilizer for polyolefins, particularly polypropylene.

Substituted 1,4-diamino-2-butene stabilizers

N,N,N',N'-Tetrasubstituted 1,4-diamino-2-butenes where the substituents are alkyl, cycloalkyl, aralkyl, aryl or mixtures thereof provide effective antioxidant protection to lubricants and/or synthetic polymers.

Perfluoroalkyl substituted hydroxyphenylalkanoic ester antioxidants and stabilized compositions

Perfluoroalkyl substituted neopentyl alcohols can be reacted with substituted hydroxphenylalkanoic esters to form perfluoroalkyl containing hydroxyphenylalkanoic ester antioxidants. The perfluoroalkyl substituted hindered hydroxyphenyl alkanoates are stablizers which confer superior processing stability to polymers processed at elevated temperatures such as polypropylene, as well as protecting said polymers from thermal and oxidative degradation.

Carbohydrate substituted dibenzo(d,f)(1,3,2)dioxaphosphepin stabilizers

Carbohydrate substituted dibenzo[d,f][1,3,2]dioxaphosphepin compounds of formula I STR1 where A is a carbohydrate residue are effective stabilizers for polymers processed at elevated temperatures and subject to thermal or oxidative degradation.

3,9-carbohydrate substituted 2,4,8,10-tetraoxa-3,9-diphosphaspiro(5.5)undecane phosphite stabilizers

Carbohydrate substituted phosphites of Formula I STR1 where A is a carbohydrate residue are effective stabilizers for polymers processed at elevated temperatures and subject to thermal or oxidative degradation.

Beta crystalline modification of 2,2',2"-nitrilo[triethyl-tris-(3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2,2'-diyl) phosphite]

The beta crystalline modification of 2,2',2"-nitrilo[triethyl-tris-(3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2,2'-diyl) phosphite] is obtained by crystallizing said compound from the melt at elevated temperatures. The beta crystalline form is an effective process stabilizer for polyolefins, particularly polypropylene.

Non-migrating 1-hydrocarbyloxy-2,2,6,6-tetramethylpiperidine 1,3,5-triazine derivatives

1-Hydrocarbyloxy-2,2,6,6-tetramethylpiperidine derivatives of s-triazines having functional groups such as hydroxy, amino, carboxy, epoxy, isocyanate or the like present are capable of chemically bonding with polymer substrates having anhydride, epoxide, alkoxymethylmelamine or isocyanate moieties present. This chemical bonding prevents migration or loss of the stabilizer during subsequent processing or end-use application of the stabilized polymer.

2-(2-hydroxy-3-perfluoroalkyl thiomethyl-5-alkylphenyl)2H-benzotriazoles and stabilized compositions thereof

2-(2-Hydroxy-3-perfluoroalkylthiomethyl-5-alkylphenyl)-2H-benzotriazoles are prepared by reacting the Mannich base hydrohalide or quaternary salt of a 2-(2-hydroxy-5-alkylphenyl)-2H-benzotriazole with a perfluoroalkyl mercaptan. The products exhibit outstanding efficacy in protecting organic substrates from light induced deterioration as well as good resistance to loss by volatilization or exudation during the processing of stabilized compositions at elevated temperatures.

Substituted 1-hydroxy-2,6-diaryl-4-piperidone ketals and polymer compositions stabilized therewith

1-Hydroxy-2,6-diaryl-4-piperidone ketal derivatives, such as the compound of formula I STR1 wherein Ar1 and Ar2 are each phenyl, R1 to R6 are all hydrogen, X1 and X2 are each --O-- and T is a direct bond, are novel compounds and are effective process stabilizers, such as polypropylene, for polymers processed at elevated tempertures providing both good melt flow stabilization and good resistance against discoloration during said processing.