Monitoring concentration of dope in product manufacture

Details Monitoring concentration of dope in product manufacture Monitoring concentration of dope in product manufacture

1994-07-08

1996-04-16

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Recycling of reclaimed or purified process material

Of gaseous process material

159 5, 264 401, 264408, 264 406, 264187, 264203, 425 71, 425135, 425143, 425217, 4253822, 425404, 425445, B29C 4792, D01F 202, D01F 1302

Patent

active

055079830

ABSTRACT:
Continuous elongate members such as filaments are produced by forming a hot dope of cellulose, amine oxide and water, extruding the dope through a die assembly and precipitating the cellulose to form the bodies and maintaining the concentration of the dope at a predetermined value by monitoring the refractive index of the dope before it is extruded.

REFERENCES:
patent: 4416698 (1983-11-01), McCorsley
Patent Abstracts of Japan, vol. 5, No. 4, 13 Jan. 1981 JP A 55 132 (Nippon Ester Co. Ltd.) 15 Oct. 1980.

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