GB278716A - Improved process for precipitating viscose solutions - Google Patents

Improved process for precipitating viscose solutions

Info

Publication number
GB278716A
GB278716A GB26324/27A GB2632427A GB278716A GB 278716 A GB278716 A GB 278716A GB 26324/27 A GB26324/27 A GB 26324/27A GB 2632427 A GB2632427 A GB 2632427A GB 278716 A GB278716 A GB 278716A
Authority
GB
United Kingdom
Prior art keywords
per cent
improved process
weight
parts
sulphuric acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB26324/27A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB278716A publication Critical patent/GB278716A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
    • D01F2/08—Composition of the spinning solution or the bath

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)

Abstract

278,716. I. G. Farbenindustrie Akt.- Ges. Oct. 5, 1926, [Convention date]. Cellulose xanthates, processes for making filaments and other products from.-Precipitating baths for viscose, particularly such as are used for the manufacture of artificial silk &c., are saturated with respect to sodium sulphate and contain a high percentage of sulphuric acid such that on cooling to the crystallization point trisodium hydrogen sulphate first separates. Suitable concentrations of sulphuric acid are :-at 20‹ C., 16 per cent; at 46‹ C., 17-18 per cent; at 60‹ C., 19 per cent, these percentages being the parts by weight of acid contained in 100 parts by weight of the solution.
GB26324/27A 1926-10-05 1927-10-05 Improved process for precipitating viscose solutions Expired GB278716A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE278716X 1926-10-05

Publications (1)

Publication Number Publication Date
GB278716A true GB278716A (en) 1929-02-05

Family

ID=6028560

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26324/27A Expired GB278716A (en) 1926-10-05 1927-10-05 Improved process for precipitating viscose solutions

Country Status (3)

Country Link
BE (1) BE343513A (en)
FR (1) FR636725A (en)
GB (1) GB278716A (en)

Also Published As

Publication number Publication date
FR636725A (en) 1928-04-16
BE343513A (en)

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