Method for continuous preparation of polyethylene material having high strength and high modulus of elasticity
US5106558A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Apr 27, 1990 |
| Grant date | Apr 21, 1992 |
| Priority date | — |
| Expiry date | Apr 27, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2323/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.