Method of producing composite structures of ultra-high-molecular

Details Method of producing composite structures of ultra-high-molecular Method of producing composite structures of ultra-high-molecular

1990-02-09

1992-11-03

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

With printing or coating of workpiece

Coating or impregnating workpiece before molding or shaping...

264145, 264257, 264258, 264294, B29C 4320, B29C 4330

Patent

active

051604728

ABSTRACT:
Method of producing 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.

REFERENCES:
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patent: 4600633 (1986-07-01), Kono et al.
patent: 4929415 (1990-05-01), Okazaki
patent: 5061412 (1991-10-01), Okumori et al.
Harvey L. Stein, "Ultrahigh Molecular Weight Polyethylenes" (UHMWPE), Engineered Materials Handbook, vol. 2, Engineering Plastics, pp. 168-169; 1988.
Spectra.RTM. High Performance Fibers spec. sheet.

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