GB976078A - Wet spinning of acetic acid solutions of cellulose acetate - Google Patents

Wet spinning of acetic acid solutions of cellulose acetate

Info

Publication number
GB976078A
GB976078A GB3966263A GB3966263A GB976078A GB 976078 A GB976078 A GB 976078A GB 3966263 A GB3966263 A GB 3966263A GB 3966263 A GB3966263 A GB 3966263A GB 976078 A GB976078 A GB 976078A
Authority
GB
United Kingdom
Prior art keywords
acetic acid
cellulose acetate
diol
acetate
cellulose
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
GB3966263A
Inventor
James Russell
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.)
FMC Corp
Original Assignee
FMC Corp
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
Priority to BE639314D priority Critical patent/BE639314A/xx
Priority to NL299507D priority patent/NL299507A/xx
Application filed by FMC Corp filed Critical FMC Corp
Priority to GB3966263A priority patent/GB976078A/en
Priority to FR951680A priority patent/FR1387867A/en
Publication of GB976078A publication Critical patent/GB976078A/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
    • D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
    • D01F2/28—Monocomponent 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

976,078. Wet-spinning cellulose acetate. FMC CORPORATION. Oct. 8, 1963, No. 39662/63. Heading B5B. A solution of cellulose acetate having an acetyl value of 30-62.5% determined as acetic acid, in a solvent of which the major constituent is acetic acid is spun into filaments or films which are coagulated in a bath containing 10% to 65% by weight of acetic acid, and an aliphatic dihydric alcohol. The cellulose acetate spinning dope is preferably the acetylation mixture itself, e.g. a catalyst neutralized acid dope containing 8% to 15% by weight of cellulose acetate. Specified alcohols, which are non-solvents for the acetate, are ethylene glycol; tri-, tetra-, penta-, hexa-, and decamethylene glycols; 2,2-dimethyl-1,3-propanediol; 2,2,3,3 - tetramethyl - 1,4 - butanediol; 2 - butene - 1,4 - diol; 2 - hexene - 1,6 - diol; 3 - octene - 1,8 - diol; 2,2,5,5 - tetramethyl - 3- hexene - 1,6 diol; di -, tri -, and tetraethylene glycols; dipropylene glycol; 4,4<SP>1</SP>- dihydroxy - dibutyl ether and polyoxyalkylene glycols. The coagulated filaments may be subjected to a primary stretching of up to 10 times or more, which facilitates the production of fine denier filaments, and also to a secondary stretching. In examples, cellulose triacetate and secondary acetate spinning dopes, consisting of solutions of cellulose acetate in acetic acid, and made by acetylation of cellulose with acetic anhydride, are spun into coagulation baths consising of mixtures of glacial acetic acid and ethylene glycol, propylene glycol, and polyethylene glycols.
GB3966263A 1963-10-08 1963-10-08 Wet spinning of acetic acid solutions of cellulose acetate Expired GB976078A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE639314D BE639314A (en) 1963-10-08
NL299507D NL299507A (en) 1963-10-08
GB3966263A GB976078A (en) 1963-10-08 1963-10-08 Wet spinning of acetic acid solutions of cellulose acetate
FR951680A FR1387867A (en) 1963-10-08 1963-10-24 Preparation of filaments and fibers made of cellulose acetate and new products thus obtained

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3966263A GB976078A (en) 1963-10-08 1963-10-08 Wet spinning of acetic acid solutions of cellulose acetate

Publications (1)

Publication Number Publication Date
GB976078A true GB976078A (en) 1964-11-25

Family

ID=10410776

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3966263A Expired GB976078A (en) 1963-10-08 1963-10-08 Wet spinning of acetic acid solutions of cellulose acetate

Country Status (3)

Country Link
BE (1) BE639314A (en)
GB (1) GB976078A (en)
NL (1) NL299507A (en)

Also Published As

Publication number Publication date
BE639314A (en)
NL299507A (en)

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