Nylon coated uhmwpe fibres with improved properties and apparatus for coating same
AssigneeRyerson University
InventorsDariush Firouzi, Daniel Foucher, Habiba Bougherara, Pradeep Agrawal
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Abstract
A composition comprising an inner core of UHMWPE fibres having a molecular weight greater than 500,000 Daltons with a denier of from about 700 to about 3000, preferably from about 1000 to about 2500, more preferably from about 1500 to about 2000, most preferably from about 1500 to about 1800, with an overall thickness of 0.2 to 0.8 mm and a nylon coating.
Claims22
A composition comprising an inner core of UHMWPE fibres having a molecular weight greater than 500,000 Daltons with a denier of from about 700 to about 3000, preferably from about 1000 to about 2500, more preferably from about 1500 to about 2000, most preferably from about 1500 to about 1800, with an overall thickness of 0.2 to 0.8 mm and a nylon coating.
A process for preparing a coated UHMWPE fibre using an alcohol soluble nylon selected from the group of nylon 6,6, nylon 6,12, nylon 6, and nylon 5,10 and the alcohol is selected from the group of lower alkanols selected from the group consisting of:
- methanol, ethanol, propanol, butanol and cyclohexanol.
A process for preparing a coated UHMWPE fibre comprising
- a. contacting a UHMWPE fibre (or fibres) with a nylon alcoholic solution prepared in the presence of a salt selected from the group consisting of CaCl2 which is contacted with UHMWPE fibres for a predetermined period of time to allow coating of said UHMWPE,
- b. washing said coated UHMWPE fibre to substantially remove CaCl2 from said coated UHMWPE fibre and further precipitate the nylon on the UHMWPE fibre,
- c. drying said coated UHMWPE fibre.
Dependencies are inferred from the claim text.