STOMATOLOGIC CASTING MATERIAL Russian patent published in 1995 - IPC

FIELD: medicine, particularly, stomatology. SUBSTANCE: this material is based on graft copolymer of vinyl-containing polyorganosiloxane and styrene and further includes polyorganohydride siloxane and catalyst, that is, complex of platinic hydrochloric acid and vinyl-containing siloxane oligomer. Above enumerated components are in following ratio: 100 parts by mass of graft copolymer, 5 to 50 parts by mass of polyorganohydride siloxane, and 0.15 to 5.0 parts by mass of catalyst. This admixture may additionally contain thickening agent, that is, dimethyl methylvinylsiloxane rubber combined with various fillers. EFFECT: increase of material working time up to 2 min, preservation of solidification time of 4 to 6 min, and practically zero linear shrinkage of material during 24 h. 2 cl