Crosslinking boosters

The radiation sensitivity of negative-tone resists can be increased with the aid of crosslinking boosters, for example, by adding 20 wt% trimethylolpropane trimethacrylate (TPTM) or dipentaerythrityl pentaacrylate (DPEPA) (Chart 5.9) to polychlor-omethylstyrene [149]. 

Foam compositions, including a latex and a polynitrile oxide such as 2,4,6-triethylbenzene-l,3-dicarbonitrile oxide, or a latex and an epoxy silane, or a latex and a mixture of the two crosslinkers have been prepared (526). The compositions may also contain additional components, including fillers, surfactants, cell detackifiers, froth stabilizers, froth boosters, viscosity reducers, and compounds to improve resilience, and antioxidants. The compositions are particularly useful in the manufacture of flooring, wall covering, shoe lining and nonwoven materials. 

---