A gasket material comprising a fibre component, a rubber component and a further resilient material is described. The further resilient material comprises chemically exfoliated vermiculite (CEV). A novel process of production is also described. The product has high stress retention and excellent sealing performance at high temperatures. Preferably, the gas permeability of the gasket material is less than 1.0 ml/min and the hot creep of the gasket material is less than 15%.

The present invention provides a method for sealing a leakage at a remote site in a pipe, the method including introducing a fluid carrier composition including a hardener, a resin and at least one of a multiplicity of plugging devices and a multiplicity of cut fibers into the pipe at the first site under pressure and allowing the fluid carrier to transport the at least one of the multiplicity devices and the multiplicity of fibers to the remote site, wherein the at least of the multiplicity of devices and the multiplicity of the cut fibers penetrates the leakage thereby sealing and curing the leakage.

A sealant material for sealing threaded pipe joints that is a multifilament or spun polyphenylene sulfide yarn and a joint sealing composition comprising a silicone oil or a natural oil with a smoke point of about 230 C. or higher. The polyphenylene sulfide yarn is coated with the joint sealant composition. The material forms an effective seal and is resistant even when used in systems in which it is exposed to temperatures in excess of 280 C. The material may be provided in a dispenser.

The present invention provides systems and methods for curing at least one leakage in a pipeline, the system including at least one fiber-in-sealant-in carrier fluid (FISIC) composition and at least one gel pig composition; wherein the at least one FISIC composition and the at least one gel pig form a pig train, are adapted to move along the pipeline to a region of the leakage and to seal and cure the at least one leakage.

The present invention relates to an automotive engine cooling system stop-leak formulation for repairing leaks in an engine cooling system, is compatible with common coolant antifreeze types and is capable of maintaining the repair after draining and re-filling the coolant. The automotive engine cooling system stop-leak formulation comprising a polymeric resin and a particulate package, wherein the particulate package comprises a first natural fibre having a first fibre length and a greater amount of a second natural fibre having a second fibre length.

Provided is a composition for a gas seal member that can form a gas seal member capable of sufficiently suppressing both the occurrence of overflow fracture and the occurrence of blister fracture. The disclosed composition for a gas seal member is a composition for a gas seal member that contains an elastomer and a fibrous carbon nanostructure. The fibrous carbon nanostructure includes single-walled carbon nanotubes and the fibrous carbon nanostructure is contained in a proportion of at least 0.1 parts by mass and no greater than 12 parts by mass per 100 parts by mass of elastomer.

Disclosed is a gas seal member for high-pressure hydrogen device with sufficiently reduced occurrence of both swelling destruction and blister destruction. The gas seal member is formed of a cross-linked product of an elastomer composition which comprises an elastomer and fibrous carbon nanostructures, wherein a hydrogen diffusion coefficient D1 of a cross-linked product of an elastomer component including the elastomer and a hydrogen diffusion coefficient D2 of the cross-linked product of the elastomer composition satisfy the relationship 0.7<D2/D1<1.0.

A self-healing hydraulic seal is provided. The self-healing hydraulic seal is prepared from a water-swellable elastomeric composition comprising a base polymer and a plant-based polysaccharide.

A composition comprising a fiber component having a melt/softening temperature and a matrix material for mixing with the fiber component, wherein the composition experiences a vertical rise of at least about 0.5 mm in the absence of any blowing agent when exposed to an elevated temperature of at least about 70 C.

A self-healing hydraulic seal is provided. The self-healing hydraulic seal is prepared from a water-swellable elastomeric composition comprising a base polymer and a plant-based polysaccharide.