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US 4,792,400 AGranted
Insoluble vinyl lactam clarifiers
AssigneeGAF Corporation
InventorsJames Dougherty, Harold O. Locke, Fulvio J. Vara, Robert B. Login, Terry E. Smith
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Abstract
The invention relates to a highly filterable, water insoluble vinyl lactam polymer and to a process for improving filterability of such polymer which comprises irradiation with a source of radiant energy at a dosage sufficient to effect additional cross-linking and or saturation of the polymer.
Claims21
The process of subjecting a normally solid, water insoluble vinyl lactam polymer containing between about 0.5 and about 10% non-cross-linked and/or unsaturated sites to irradiation with radiant energy at a dosage level between about 0.05 and 20 megarads or its equivalent.
Dependencies are inferred from the claim text.