Method of utilizing waste material in production of multicomponent filamentary material
Abstract
Abstract METHOD OF UTILIZING "WASTE" CELLULOSE TRIACRETATE-SECONDARY CELLULOSE ACETATE MULTICOMPONENT FILAMENTARY MATERIAL IN PRODUCING A MULTICOMPONENT FILAMENTARY MATERIAL. INVOLVES INJECTING INTO DOPE STREAM OF SECONDARY CELLULOSE ACETATE A SOLUTION OF "WASTE" MULTICOMPONENT FILAMENTARY MATERIAL OF CELLULOSE TRIACETATE AND SECONDARY CELLULOSE ACETATE, CONTRACTING THE SO-MODIFIED CELLULOSE ACETATE DOPE STREAM WITH A DOPE STREAM OF CELLULOSE TRIACETATE TO FORM A COMPOSITE STREAM, PASSING THE COMPOSITE DOPE STREAM BY LAMINAR FLOW TO A JET, AND EXTRUDING THE COMPOSITE DOPE STREAM THROUIGH THE JET TO FORM MULTICOMPONENT FILAMENTARY MATERIAL. THEREAFTER MAY SELECTIVELY SAPONIFY SO AS TO REGENERATE CELLULOSE FROM THE CELLULOSE ACETATE, RESULTING IN MULTICOMPONENT FILAMENTS OF CELLULOSE TRIACETATE AND REGENERATED CELLULOSE.
Inventors
- 👤 Roland Keith Kunkel
- 👤 John Galvin Munro
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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| 3.5 Years (Year 4) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
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