Invention Grant
- Patent Title: Production of filaments
- Patent Title (中): 长丝的生产
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Application No.: US771097Application Date: 1977-02-23
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Publication No.: US4134951APublication Date: 1979-01-16
- Inventor: James Dow , Ronald Lloyd , Albert G. Patchell
- Applicant: James Dow , Ronald Lloyd , Albert G. Patchell
- Applicant Address: GB2 Nelson
- Assignee: Smith & Nephew Polyfabrik Limited
- Current Assignee: Smith & Nephew Polyfabrik Limited
- Current Assignee Address: GB2 Nelson
- Main IPC: D01D5/42
- IPC: D01D5/42 ; B32B3/10
Abstract:
An extruded sheet or the like of cold-drawable polymer such as polypropylene is embossed as a molten sheet by a circumferentially multi-grooved roller and stretched in the direction of the embossed grooves to split into filaments along the grooves.
Public/Granted literature
- US4679233A Microphone Public/Granted day:1987-07-07
Information query
