Vessel formed of polymeric composite materials

Details Vessel formed of polymeric composite materials Vessel formed of polymeric composite materials

1994-09-13

1997-03-18

Zirker, Daniel

Receptacles

Receptacle having flexible, removable inner liner

Means for venting air trapped between the liner and its...

428 349, 428 361, B65D 9004

Patent

active

056114532

ABSTRACT:
A vessel for containing or conveying a fluid comprises a wall having at least an inner layer adapted to be adjacent to or in contact with the fluid and an outer layer, each layer being comprised of a matrix of polymeric material, the polymeric materials of the inner and outer layers being differently constituted. The two layers are bonded together and the polymeric material of the inner layer has a coefficient of shrinkage during curing which is less than the co-efficient of shrinkage of the resin material in the outer layer so that the inner layer of the wall has a post-curing residual compressive stress induced therein by the outer layer. The invention extends to a method of forming a multi-layered polymeric vessel.

REFERENCES:
patent: 3738527 (1973-06-01), Townsend
patent: 3814275 (1974-06-01), Lemons
patent: 3902941 (1975-09-01), Withers
patent: 4044184 (1977-08-01), Ashida et al.
patent: 4073400 (1978-02-01), Brook et al.
patent: 5090586 (1992-02-01), Mitchell
patent: 5344038 (1994-09-01), Freeman et al.

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