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US 10,894,875 B2Granted
Films and unit dose articles comprising aversive UV-protective agents, and uses and methods related thereto
AssigneeThe Procter & Gamble Company
InventorSammy Kibet Sambu
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Abstract
Films including an aversive UV-protective agent, e.g., a quinoliziumolate, exhibiting improved thermostable UV protection and an acceptable bittering value at the same time which further minimizes processing complexity. Unit dose articles that include such films. Related processes.
Claims20
A water-soluble film comprising a quinoliziumolate, wherein said quinoliziumolate is selected from those quinoliziumolates according to formula (I),
- wherein formula (I) is
- wherein R1 comprises a chemical moiety selected from the group consisting of oxygen ion, hydroxyl, hydroxonium/hydronium, methanolate, carbonyl, fluoro-, chloro-, bromo-, iodo-, thio-, nitro-/azo-, amino-, silo-, phospho-, hydride, and mixtures thereof;
- R2 comprises a chemical moiety selected from the group consisting of 2H-aziridine, oxirene, thiirene, azete, (di—)azetidene, dihydroazete, oxete, thiete(-ne), pyrolene, pyroazoles, furan, alkylfuran, oxathiols, dioxolenes, thiophene, oxazoles, thiazoles, thiadiazoles, thiazolidinones, succinimides, pyridine, pyran, alkylpyran, thiopyran, azepine, oxepine, thiepine, thiazine (-dioxides), thiomorpholine-dioxides, quinolines, azocines, azepines, spiro-alkenes, azospiro-alkenes, thiospiro-alkenes, and mixtures thereof;
- R3 comprises a chemical moiety selected from the group consisting of hydroxyl, hydroxonium/hydronium, carbonyl, fluoro-, chloro-, bromo-, iodo-, thio-, nitro-/azo-, amino-, hydride, and mixtures thereof;
- R4 comprises a chemical moiety selected from the group consisting of 2H-aziridine, oxirene, thiirene, azete, (di—)azetidene, dihydroazete, oxete, thiete(-ne), pyrolene and pyroazoles, furan, oxathiols, dioxolenes, thiophene, oxazoles, thiazoles, thiadiazoles, thiazolidinones, succinimides, pyridine, pyran, thiopyran, azepine, oxepine, thiepine, thiazine (-dioxides), thiomorpholine-dioxides, quinolines, azocines, azepines, spiro-alkenes, azospiro-alkenes, thiospiro-alkenes;
- R5 comprises a chemical moiety selected from the group consisting of hydroxyl, hydroxonium/hydronium, carbonyl, fluoro-, chloro-, bromo-, iodo-, thio-, nitro-/azo-, amino-, silo-, phospho-, hydride, methyl, ethyl, propyl, butyl, pentyl, heptyl, octyl, nonyl-, and aromatic hydrocarbons;
- wherein the level of quinoliziumolate is from about 0.05 ppm to about 1.0 ppm as determined after storage of the water-soluble film for one month at 25° C. and 60% relative humidity.
4 more elements
Dependencies are inferred from the claim text.