Method of producing composite structures of ultra-high-molecular-weight polymers, such as ultra-high-molecular-weight po
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B29C-043/20
B29C-043/30
출원번호
US-0477628
(1990-02-09)
발명자
/ 주소
Zachariades Anagnostis E. (65 Glengarry Way Hillsborough CA 94010)
인용정보
피인용 횟수 :
56인용 특허 :
0
초록▼
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 shee
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°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.
대표청구항▼
A method of making a single phase composite product, comprising the steps of: heating a sheet of UHMWPE pseudo-gel comprising 5% UHMWPE in 95% paraffin oil, by weight, to 125°C., so that the pseudo-gel dissolves into a solution, applying a knitted UHMWPE high modulus, high-strength fibrillar structu
A method of making a single phase composite product, comprising the steps of: heating a sheet of UHMWPE pseudo-gel comprising 5% UHMWPE in 95% paraffin oil, by weight, to 125°C., so that the pseudo-gel dissolves into a solution, applying a knitted UHMWPE high modulus, high-strength fibrillar structure on one side thereof, said fibrillar structure being formed from a semicrystalline linear polymer which is the same as said pseudo-gel, with a weight average molecular weight of at least 500,000, placing the combined layers under compression at about 2,000 psi at about 125°C. to form a unitary composite structure, lowering the temperature to at least about 100°C., to give a gel-coated UHMWPE knitted structure with high modulus and strength, removing the paraffin oil from the gel coated structure by extraction with hexane, and removing the hexane form the gel component of the composite system by evaporation, to obtain a single phase composite of UHMWPE fibers in UHMWPE matrix.
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