| abstract |
A polyolefinic resin is combined with a (meth)acrylicnpolyfunctional monomer in a generally central region of itsnchemical formula, having an aromatic ring, an alicyclicnring or a heterocyclic ring and a pyrolyzable chemicalnfoaming agent to give a curable and foamable polyolefinicnresin composition. The composition is shaped into a sheet,nthen cured and foamed into a sheet foam. The cured foam ofnpolyolefinic resin is curable to a degree of curing of fromn10 to 70 %, to give a foam having good heat resistance,ngood workability and shapability , and good pressurenresistance. |