Tri-and tetra-(substituted hydroxyphenylthio) alkane and...

Details Tri-and tetra-(substituted hydroxyphenylthio) alkane and... Tri-and tetra-(substituted hydroxyphenylthio) alkane and...

C - Chemistry, Metallurgy

09

K

400/3001, 400/30

C09K 15/14 (2006.01) C08K 5/37 (2006.01) C08K 5/375 (2006.01) C10M 135/30 (2006.01)

Patent

CA 1225408

- 1 - TRI- AND TETRA-(SUBSTITUTED HYDROXYPHENYLTHIO) ALKANE AND CYCLOALKANE STABILIZERS AND STABILIZED COMPOSITIONS Abstract of the Disclosure Organic materials are stabilized against thermal, oxidative and photo-degradation by incorporating therein an effective amount of a compound of formula I Image (I) wherein T1 and T2 independently are alkyl, cycloalkyl, phenyl, aralkyl, T2 may also be hydrogen, T is alkyl, phenyl or substituted hydroxyphenyl, E is a direct bond, alkylene, cycloalkylene, phenylene or -CH2CH(ST)CH2-, T3 and T4 are independently hydrogen, alkyl or cycloalkyl; or together are alkylene, T5 is hydrogen, alkyl or phenyl, n is 1 or 2, t is 0 or 1, and t is 2-n. Polyolefins, ABS resins, natural and synthetic rubbers and polyesters are particularly well stabilized by the compounds of formula I.

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