Title: Benzotriazole ultraviolet stabilizing compounds and their use in organic compositions

Abstract: The invention relates to bichromophoric benzotriazole compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing a stabilizing amount of the bichromophoric composition to prevent such degradation. These stabilizers are effective in the presence of other additives commonly employed in polymeric compositions including, for example, pigments, colorants, fillers, reinforcing agents and the like. These ultraviolet stabilizers may also be incorporated into the organic compositions in the polymer melt or dissolved in the polymer dope, coated on the exterior of the molded article, film or extruded fiber.

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Inventors: Irick, Jr., Gether (Kingsport, TN, US)
Kelly, Charles A. (Kingsport, TN, US)
Martin, James C. (Kingsport, TN, US)

Application Number: 715013
Filing Date: 1976-08-16
Publication_date: 1978-04-18
Assignee: Eastman Kodak Company (Rochester, NY)
Primary Class(es): 524/91 548/260
Other Classes:
US Patent Ref:

3072585	Jan, 1963	Milionis et al.	260/308.
3218332	Nov, 1965	Heller et al.	260/308.
3629191	Dec, 1971	Heller et al.	260/45.
3936419	Feb, 1976	Wang et al.	260/307.
3981822	Sep, 1976	Ownby	260/45.
4000148	Dec, 1976	Pond et al.	260/307.

Other Refs:
Primary Examiner: Rzucidlo, Eugene C.
Assistant Examiner:
Attorney: Tootle; Clyde L., Reece, III; Daniel B.