Laminated air brake tubing

Details Laminated air brake tubing Laminated air brake tubing

1998-02-11

2000-06-06

Robinson, Ellis

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 3691, 138125, 138126, 138141, 138137, B32B 108

Patent

active

060715790

ABSTRACT:
A laminated air brake tubing includes inner and outer nylon layers with an intermediate fiber reinforcing layer. The tubing further includes one and preferably two layers of high density polyethylene positioned adjacent either of said nylon layers with a protective layer separating the fiber reinforcing layer from the high density polyethylene layer. The protective layer is preferably a thin layer of nylon or nylon alloy. Further, the high density polyethylene layer may include compatibilizing agents preventing delamination. The air brake tubing of the present invention meets the current requirements for air brake tubing, however it is less expensive than currently available air brake tubing.

REFERENCES:
patent: 3601524 (1971-08-01), Kauffman
patent: 3814138 (1974-06-01), Courtot
patent: 4308896 (1982-01-01), Davis
patent: 4717326 (1988-01-01), Motonaga et al.
patent: 4998565 (1991-03-01), Kokuryu et al.
patent: 5038833 (1991-08-01), Brunnnhofer
patent: 5076329 (1991-12-01), Brunnhofer
patent: 5225482 (1993-07-01), Nakagawa et al.

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