PARONITE Russian patent published in 2010 - IPC F16J15/06 

FIELD: machine building.

SUBSTANCE: in paronite (and gasket made from it) containing several layers from polymer composite including matrix from vulcanised rubber, in which particles and (or) fibres of fillers are arranged, layers are made with equal elasticity; at that, material of layers has elasticity modulus value of not less than 220 MPa.

EFFECT: invention increases sealing capacity of paronite owing to decreasing the possibility of preferential destruction of individual paronite layers at offset of sealed surfaces.