Method for continuous preparation of polyethylene material...

B - Operations – Transporting – 29 – C

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B29C 43/22 (2006.01) B29C 55/00 (2006.01) B29C 55/04 (2006.01) B29C 55/18 (2006.01) C08J 3/00 (2006.01) C08J 3/09 (2006.01) C08J 5/18 (2006.01)

Patent

CA 2015506

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°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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