Method for continuous preparation of polyethylene material having high strength and high modulus of elasticity
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United States of America Patent
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Apr 21, 1992
Grant Date -
N/A
app pub date -
Apr 27, 1990
filing date -
May 2, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for the continuous preparation of a polyethylene having high strength and high modulus of elasticity is here disclosed which comprises the steps of mixing 100 parts by weight of an ultra-high-molecular-weight polyethylene powder having an intrinsic viscosity of 5 to 50 dl/g in decalin at 135.degree. C. with 2 to 50 parts by weight of a liquid organic compound having a boiling point higher than the melting point of the polyethylene, feeding the resulting mixture to between a pair of upper and lower endless belts facing each other, continuously compression-molding the mixture at a temperature less than the melting point of the mixture by pressing means disposed inside the endless belts, and rolling and then drawing the same.
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