N-hydrocarbyloxy hindered amine light stabilizers with phosphoru

Details N-hydrocarbyloxy hindered amine light stabilizers with phosphoru N-hydrocarbyloxy hindered amine light stabilizers with phosphoru

1990-02-14

1991-06-04

Morgan, Kriellion

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524102, 524103, 546 16, 546 22, 546 25, C08K 53435, C07D21500, C07F 906

Patent

active

050214810

ABSTRACT:
N-Hydrocarbyloxy derivatives of phosphorus substituted 4-amino- and 4-hydroxy-2,2,6,6-tetramethylpiperidine are effective light stabilizers for polymer compositions. These phosphorus compounds include phosphites and cyclic phosphites such as 1,3,2-dioxaphospholanes, 1,3,2-dioxaphosphorinanes, 1,3,2-oxazaphospholidines, 1,3,2-diazaphospholidines, 1,3,2-dioxaphosphocins, 1,3,2-dioxaphosphepins and 2,4,8,10-tertraoxa-3,9-diphosphaspiro[5,5]-undecanes.

REFERENCES:
patent: 4096114 (1978-06-01), Minagawa et al.
patent: 4661594 (1987-04-01), Rasberger et al.
patent: 4665185 (1987-05-01), Winter et al.
patent: 4808645 (1989-02-01), Ravichandran et al.
Shlyapintokh et al., "Developments in Polymer Stabilization", V, 41-70, (1982).

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