Patent JPS5221421A successfully refreshed from Google Patents.
JPS5221421A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Process for producing dried hollow polyvinyl alcohol fibers
Assignee: Kuraray Co Ltd
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Filing: 1975-08-13
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Granted: —
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Expires: 1995-08-13
Abstract
Abstract PURPOSE: To obtain fibers with improved permeability and mechanical strength by crosslinking hollow fibers based on polyvinyl alcohol with a polyvalent aldehyde in a reaction medium, treating them hot water and then treating them in a wet state with a water-miscible organic solvent. COPYRIGHT: (C)1977,JPO&Japio
Inventors
- 👤 Kazuhisa Yamauchi
- 👤 Koichi Takakura
- 👤 Akio Omori
- 👤 Shuji Kawai
- 👤 Yoshiaki Fujimoto
- 👤 Kyoichi Miyazaki
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-06 14:53
CPC Classifications
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