Textiles: spinning – twisting – and twining – Apparatus and processes – Elements
Patent
1976-02-23
1977-09-27
Watkins, Donald
Textiles: spinning, twisting, and twining
Apparatus and processes
Elements
57140C, D02G 304, D02G 336
Patent
active
040502309
ABSTRACT:
The rope of this invention comprises a plurality of strands each having a twisted reinforcing fiber bundle, thermosetting resin applied to the fiber bundle, and a thermoplastic resin cover enclosing the fiber bundle. Each strand in the rope is kept to substantially a round sectional shape by the twisted fiber bundle.
The method for forming the rope comprises the steps of twisting the reinforcing fibers in such a manner that the tensile strength of the twisted fibers is not reduced to less than 50% of the fibers not twisted, applying an uncured thermosetting resin to the twisted fibers, covering the fibers with a molten thermoplastic resin, cooling the thermoplastic resin to cover the fibers with solidified thermoplastic resin and thereby forming a strand, forming a rope structure from a plurality of the strands, and heating the rope structure to cure the thermosetting resin applied on the fibers.
REFERENCES:
patent: 3371476 (1968-03-01), Costello et al.
patent: 3391052 (1968-07-01), Marzocchi
patent: 3395529 (1968-08-01), Ray
patent: 3413186 (1968-11-01), Marzocchi
patent: 3425207 (1969-02-01), Campbell
Honda Kenji
Senoo Tadao
Toyo Rope Manufacturing Co., Ltd.
Ube Nitto Kasei Co., Ltd.
Watkins Donald
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