Composite structures of ultra-high-molecular-weight polymers, su

Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing

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428 364, 428 3691, 428252, 428286, 428290, 428298, 428500, 428515, 428902, 428911, B32B 2700, B32B 2712

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049449745

ABSTRACT:
A single-phase composite structure of filamentary and non-filamentary semicrystalline morphology made from the same polymer, which is of a type capable of gelling in a suitable solvent and of being deformed into a high-modulus, high-strength product. Layers of the polymer in sheet form are interleaved with at least one layer, also of that polymer, made from filaments thereof. The method of making the product may involve heating a sheet of UHMWPE or other polymer gel (5% UHMWPE in 95% paraffin oil, by weight) to 125.degree. C., applying a knitted UHMWPE high modulus, high-strength structure on one side thereof, extracting the non-volatile paraffin oil therefrom with hexane, and evaporating the hexane.

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patent: 4403012 (1983-09-01), Harpell et al.
patent: 4413110 (1983-11-01), Kavesh et al.
patent: 4457985 (1984-07-01), Harpell et al.
patent: 4518647 (1985-05-01), Morrison
patent: 4737402 (1988-07-01), Harpell et al.

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