Gas-and-oil impermeable hose construction

Details Gas-and-oil impermeable hose construction Gas-and-oil impermeable hose construction

1993-12-09

1994-11-08

Robinson, Ellis P.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 353, 428 368, 428 358, 428 3691, 428461, 428458, 428465, 4284749, 4284752, 428483, 428494, 428522, 138126, 138127, 138143, F16L 1108

Patent

active

053625307

ABSTRACT:
A composite hose is disclosed which is constructed essentially with an inner tube and an outer cover, the inner tube being formed from a composition comprised of a specified polymer alloy of a selected class of polyamide resins and acrylic rubbers and the outer cover from a composition comprised of a specified thermoplastic elastomer of a selected class of polyolefin resins and ethylene-propylene-diene rubbers and butyl-based rubber. Impermeability is greatly improved with respect to refrigerant gases and fuel oils.

REFERENCES:
patent: 4196464 (1980-04-01), Russell
patent: 4308896 (1982-01-01), Davis
patent: 4905735 (1990-03-01), Akiyoshi
patent: 4950436 (1990-08-01), Kitami et al.

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