LAMINATED SEALING MATERIAL FOR INSERTIONS Russian patent published in 2003 - IPC

FIELD: sealing materials. SUBSTANCE: invention provides laminated sealing materials (paronites) and insertions therefrom designed for operation in seal assemblies with flat sealed surfaces, wherein material is exposed alternate thermal and mechanical loadings: periodic compressions, heating, and so on. Material comprises several flat composite layers with matrix from vulcanized rubber, powdered and fibrous filler, elasticity of internal layers being larger than that of outside layers. EFFECT: increased sealing capability. 3 ex