GB356343A - - Google Patents

Info

Publication number
GB356343A
GB356343A GB18923/30A GB1892330A GB356343A GB 356343 A GB356343 A GB 356343A GB 18923/30 A GB18923/30 A GB 18923/30A GB 1892330 A GB1892330 A GB 1892330A GB 356343 A GB356343 A GB 356343A
Authority
GB
United Kingdom
Prior art keywords
solvent
cellulose
filaments
heated
solution
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
GB18923/30A
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.)
Acordis UK Ltd
Original Assignee
British Celanese Ltd
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 British Celanese Ltd filed Critical British Celanese Ltd
Publication of GB356343A publication Critical patent/GB356343A/en
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/24Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
    • D01F2/28Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate

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

Lustrous filaments, yarns, bristles, straws and the like are produced from water-insoluble organic derivatives of cellulose by wet-spinning processes in which coagulation is conducted under such conditions that the formed materials contain a solvent or a latent solvent for the cellulose derivative, the formed materials being then heated. Thus, the cellulose derivatives solution may contain a substance which is a solvent or latent solvent for the derivative at ordinary or raised temperature, but is relatively insoluble in the coagulating bath; examples of such substances, when an aqueous coagulating bath is used, are methylene chloride, ethylene dichloride, triacetin, acetophenone, tetrachlorethane, and dibutyl tartrate. Any suitable solvent, however, may be used in preparing the spinning solution, and the coagulating liquid may be any non-solvent (for the cellulose derivative) that dissolves or is miscible with at least a part of the solvent; other specified solvents are acetone, chloroform, and mixtures of methyl or ethyl alcohol with methylene or ethylene chloride or dichlorethylene, and other specified coagulants are hydrocarbons such as benzene and its homologues and petroleum hydrocarbons. If ordinary spinning solutions are used, the retention of some of the solvent in the formed materials may be ensured by restricting the length of the path of the materials in the bath, and (or) by increasing the speed of spinning. The heating of the formed materials may be effected by bringing them into contact with heated feed rolls, pipes, rods or plates, or by passing them between pressure rolls, at least one of which is heated. The heat treatment may be applied directly after coagulation, or the filaments may first be wound or twisted and wound. The filaments may also be stretched during the process. According to the examples, (1) a solution of cellulose acetate in ethylene dichloride, methyl alcohol and triacetin is spun into an aqueous bath, and prior to winding the threads are passed around heated rolls; (2) a solution of cellulose acetate in acetone and acetophenone is spun as in example (1); (3) a solution of cellulose acetate in acetone and diethylene glycol is spun into a kerosene bath, and the filaments are heated as in example 1. Specifications 332,187 and 332,527, [both in Class 2 (ii), Cellulose &c.], are referred to. The Specification as open to inspection under Sect. 91 (3) (a) covers the application of the process to the manufacture of filaments &c. from cellulose derivatives generally, including cellulose nitrate. This subject-matter does not appear in the Specification as accepted.
GB18923/30A 1929-06-25 1930-06-20 Expired GB356343A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US373685A US2036860A (en) 1929-06-25 1929-06-25 Process of producing artificial filaments

Publications (1)

Publication Number Publication Date
GB356343A true GB356343A (en) 1931-09-10

Family

ID=23473433

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18923/30A Expired GB356343A (en) 1929-06-25 1930-06-20

Country Status (4)

Country Link
US (1) US2036860A (en)
BE (1) BE371394A (en)
FR (1) FR697814A (en)
GB (1) GB356343A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE559086A (en) * 1954-10-26
US3084414A (en) * 1959-06-17 1963-04-09 Celanese Corp Aqueous spin bath

Also Published As

Publication number Publication date
US2036860A (en) 1936-04-07
BE371394A (en)
FR697814A (en) 1931-01-22

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