N-methylated bis-4-piperidylphosphite

Details N-methylated bis-4-piperidylphosphite N-methylated bis-4-piperidylphosphite

1993-05-17

1994-08-23

Morgan, Kriellion S.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524111, 25240021, 252407, C08K 53435, C08K 515

Patent

active

053408551

ABSTRACT:
The invention relates to the novel compound 3,9-bis(1,2,2,6,6-pentamethyl-4-piperidyloxy)-2,4,8,10-tetraoxa-3,9-diphos phaspiro[5,5]undecane of formula I ##STR1## This compound can be used as stabilizer for organic material, especially as processing stabilizer for polyethylene and polypropylene.

REFERENCES:
patent: 4110306 (1978-08-01), Minagawa et al.
patent: 4772708 (1988-09-01), Di Battista et al.
patent: 5021481 (1991-06-01), Galbo et al.
patent: 5039723 (1991-08-01), Haruna et al.
Methoden der Organischen Chemie (Houben-Weyl) Band X11/2 (1964).
Plastics Additives Handbook.
Chem. Abst. 91(20): 158608t, Hechenbleikner et al.

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