Ethylenically polyurethane unsaturated composition
AssigneeThe Goodyear Tire & Rubber Company
InventorsAnthony F. Finelli, Shirish Jasani, Columbus Williams, Jr.
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Abstract
A liquid ethylenically unsaturated polurethane composition having no free NCO and a viscosity of 2,000 to 10,000 centipoises at 24.degree. C. dispersible in dilute caustic and capable of being polymerized by actinic light to yield a solid having a Shore A hardness of at least 30. Said composition may contain a diluent and a photosensitizing agent to adjust the viscosity and making the composition more readily utilizable for making printing plates.
Claims10
A liquid ethylenically unsaturated polyetherurethane composition having no free NCO, being readily removable from a substrate by an alkaline water wash and being capable of being polymerized by actinic light to yield a solid having a Shore A hardness of at least 30, said composition being composed of a polyetherurethane consisting essentially of reaction products of polyether polyol having 2 to 3 hydroxyls, organic polyisocyanate and hydroxyl acrylate or methacrylate having an alkyl radical containing 2 to 3 carbon atoms and sufficient polyethylene polyol acrylate or methacrylate to give the composition a viscosity at 24.degree. C. of 2,000 to 10,000 centipoises.
Dependencies are inferred from the claim text.