Patent ID: 7256221

Claim:
A composition of matter consisting essentially of a reaction product of (i) a photo or electron beam curable material component comprising a material having the backbone of a completely or substantially completely hydrogenated hydrocarbon based rubber material, which is completely or substantially free of carbon-carbon double and triple bonds, and bears at least one photo or electron beam polymerizable terminal or pendant group; (ii) a photoinitiator/photosensitizer component having essentially no volatility at room temperature and also yielding photoproducts after exposure to actinic radiation that have minimal or no volatility at room temperature; (iii) an optional viscosity adjustment component that is either homopolymerizable or is capable of copolymerizing with the photo or electron beam curable material component of(i); and (iv) an optional inert filler, wherein, the composition of matter, when cured, has a low outgassing rate such that it passes the ASTM-E-595-93 (1999) test and a low outgassing rate when exposed to ultraviolet radiation having a wavelength less than or equal to about 248 nm.