NEW METHOD FOR HARDENING OF RESIN ALLOWING, USING IRRADIATION ENERGY, PERFORMING HARDENING OF RESIN CONTAINING A SUBSTANCE SHIELDING IRRADIATION ENERGY, COMPOSITIONS, MOLDED PRODUCTS, AND MOLDING METHOD Russian patent published in 2004 - IPC

FIELD: polymer materials. SUBSTANCE: invention concerns rapid hardening of resin compositions using energy of irradiation applied for thick-walled products. Resin composition includes photopolymerization-capable oligomer or its derivatives, or polymerizable monomer and 0.5-0.6 parts, per 100 parts oligomer or monomer, of photo- and thermopolymerization initiator at their weight ratio 1-4. Hardening of resin composition is accomplished by affecting resin by light energy, which autogenically produces heat energy so that composition hardening is caused by heat energy or by combination of light and heat energy independent of that if resin composition contains or not substance capable of shielding light energy. EFFECT: enabled hardening of thick-walled products and simplified hardening technology. 25 cl, 12 dwg, 6 tbl, 284 ex