UV stabilizing additive composition

Details UV stabilizing additive composition UV stabilizing additive composition

2005-01-18

2005-01-18

Sellers, Robert (Department: 1712)

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

C252S407000, C523S455000, C523S461000, C524S099000, C524S100000, C524S101000, C524S102000, C524S291000, C524S560000, C524S561000, C524S562000, C524S565000, C524S567000, C524S575000, C524S575500, C524S577000, C524S579000, C524S583000, C524S585000, C524S588000, C524S590000, C524S592000, C524S594000, C524S597000, C524S601000, C524S606000, C524S609000, C524S612000

Reexamination Certificate

active

06843939

ABSTRACT:
This invention relates to an UV stabilizing additive composition comprising an ortho-hydroxy triazine compound, a hindered hydroxybenzoate compound and optionally a hindered amine compound. This additive composition may be used to stabilize materials from UV radiation. This invention also contemplates a method of stabilizing a material by contacting the material with the UV stabilizing additive composition.

REFERENCES:
patent: 3206431 (1965-09-01), Marshall et al.
patent: 3285855 (1966-11-01), Dexter et al.
patent: 3502613 (1970-03-01), Berger
patent: 3681431 (1972-08-01), Dexter et al.
patent: 4237042 (1980-12-01), Stretanski
patent: 4670491 (1987-06-01), Stretanski et al.
patent: 5240977 (1993-08-01), Kletecka et al.
patent: 5556973 (1996-09-01), Stevenson et al.
patent: 6348591 (2002-02-01), Gupta et al.
patent: 1 336 931 (1973-11-01), None
Chemical abstracts registry No. 79720-19-7 for Sanduvor 3055 hindered amine light stabilizer, 1967.

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