Hindered amine light stabilizers for polymers

Details Hindered amine light stabilizers for polymers Hindered amine light stabilizers for polymers

1981-08-31

1983-01-25

Hoke, V. P.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524 99, 524103, 544129, 546187, 546186, 546191, C08K 535, C08K 534, C07D41312, C07D40112, C07D21106

Patent

active

043704301

ABSTRACT:
Oligomers of the formula ##STR1## which contain at least one piperidyl radical per repeating unit are useful as light stabilizers for polymers.

REFERENCES:
patent: 3480635 (1969-11-01), Altwicker
patent: 3591559 (1971-07-01), Kwolek
patent: 4104248 (1978-08-01), Cantatore
patent: 4191683 (1980-03-01), Brunetti et al.
patent: 4232131 (1980-11-01), Rody et al.
Imai et al, "Synthesis of Wholly Aromatic Polysulfonamides from Aromatic Chlorides and Aromatic Diamines", Journal of Polymer Science:Polymer Chemistry Edition, vol. 17, No. 5, (May), 1483-1491, (1979).
PCT International Publication No. WO 81/01706, published Jun. 25, 1981.
Hackh's Chem. Dictionary, 4th ed. (1969), p. 473.

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