UV light stabilizer composition comprising cyclic aliphatic epox

Details UV light stabilizer composition comprising cyclic aliphatic epox UV light stabilizer composition comprising cyclic aliphatic epox

1986-03-17

1989-06-27

Morgan, Kriellion

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524109, 524114, 524336, 524337, 524338, 252401, 252403, 252404, C08K 534, C08K 513, C08K 515

Patent

active

048431168

ABSTRACT:
A cycloaliphatic epoxy compound in combination with a 2-hydroxy-substituted benzophenone compound and a polyalkyl-substituted dipiperidine compound provides a UV stabilizer that exhibits synergistic behavior. The compounds can be formulated into a composition that is coated on, or impregnated into, the surface of a plastic article or, alternatively, they can be incorporated into a thermoplastic composition which can be thereafter molded into a shaped article. The stabilizer combination succeeds in upgrading the resistance of polyphenylene ether resins and blends against the photo-deteriorative effects of sunlight and bright indoor light, for example, fluorescent lighting.

REFERENCES:
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patent: 4198334 (1980-04-01), Rasberger et al.
patent: 4288631 (1981-09-01), Ching
patent: 4315848 (1982-02-01), Dexter et al.
patent: 4419472 (1983-12-01), Berner et al.
patent: 4555538 (1985-11-01), Shu
Patel, A. R. and Usilton, J. J., Ultraviolet Stabilization of Polymers: Development with Hindered-Amine Light Stabilizers, 1978, Advances in Chemistry, Series, No. 169, pp. 116-132.

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