Benzopyran compound and use of the same

Details Benzopyran compound and use of the same Benzopyran compound and use of the same

1994-07-11

1996-01-09

Morgan, Kriellon S.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C08K 515

Patent

active

054829860

ABSTRACT:
A 2H-1-benzopyran-2-on compound represented by the formula (1): ##STR1## and a colorless ultraviolet absorber consisting of the compound, and a thermoplastic resin composition and formed article comprising said ultraviolet absorber. The compound can provide a thermoplastic resin composition and a formed article of the composition having excellent heat stability and sublimation resistance, comprise a non-coloring ultraviolet absorber, and are excellent in ultraviolet barrier property.

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Saraf et al., Eksp. Klin. Farmakol., 56(2), 1993 pp. 47-50 (Abstract).
Simonyan et al. Pyatigorsk. Farm. Inst., 27(7), 1993, pp.29-32. (Abstract).

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