Thiosulfate polymers
AssigneeEastman Kodak Company
InventorsMark R. Mis, Deepak Shukla
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Abstract
A thiosulfate polymer includes both an electron-accepting photosensitizer component and thiosulfate groups in the same molecule, arranged in random order along the backbone. The thiosulfate polymer composition can be formulated into compositions and applied to various articles, or used to form a predetermined polymeric pattern after photothermal reaction to form crosslinked disulfide bonds, removing non-crosslinked polymer, and reaction with a disulfide-reactive material. Such thiosulfate polymer compositions can also be used to sequester metals in nanoparticulate form, and as a way for shaping human hair in hairdressing operations.
Claims14
A non-crosslinked polymer comprising, in random order:
- (a) recurring units comprising pendant thiosulfate groups, and (b) recurring units comprising an electron-accepting photosensitizer component.
A thiosulfate polymer comprising a polyester, polyamide, polyurethane, polycarbonate, or polyether backbone and pendant thiosulfate groups.
A non-crosslinked thiosulfate polymer comprising thiosulfate groups and electron-accepting photosensitizer component arranged in the same recurring units.
Dependencies are inferred from the claim text.