Water-soluble polyaminoamides comprising 1,3-diimines as sunscreen agents
AssigneeNalco Company
InventorsMingli Wei, Yin Z. Hessefort, Wayne M. Carlson
Life of this patent
Estimating the term…
Abstract
A UV-protective composition comprising a water-soluble polyaminoamide containing 1,3-diimine groups, wherein the polyaminoamide containing 1,3-diimine groups absorbs ultraviolet light radiation having a wavelength of about 200 nm to about 420 nm, and methods of treating substrates with the UV-protective polyaminoamide containing 1,3-diimine groups.
Claims20
A composition for protecting a substrate from the effect of ultraviolet light comprising an effective UV-protective amount of one or more water-soluble polyaminoamides containing 1,3-diimine groups, wherein the polyaminoamides containing 1,3-diimine groups absorb ultraviolet light radiation having a wavelength of about 200 nm to about 420 nm.
Dependencies are inferred from the claim text.