Production of porous articles

摘要

PCT No. PCT/GB95/01063 Sec. 371 Date Nov. 4, 1996 Sec. 102(e) Date Nov. 4, 1996 PCT Filed May 10, 1995 PCT Pub. No. WO95/30633 PCT Pub. Date Nov. 16, 1995A gas generating substance is added to an aqueous dispersion containing refractory particles and a polymerizable monomer and the pressure and/or temperature are adjusted so that the substance generates the gas before the polymerization gets underway; to control the formation of pores.