GB350137A - Manufacture of cellulose derivatives - Google Patents

Manufacture of cellulose derivatives

Info

Publication number
GB350137A
GB350137A GB11817/30A GB1181730A GB350137A GB 350137 A GB350137 A GB 350137A GB 11817/30 A GB11817/30 A GB 11817/30A GB 1181730 A GB1181730 A GB 1181730A GB 350137 A GB350137 A GB 350137A
Authority
GB
United Kingdom
Prior art keywords
cellulose
treatment
salt
solution
acetic anhydride
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
GB11817/30A
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.)
BASF Schweiz AG
Original Assignee
Gesellschaft fuer Chemische Industrie in Basel CIBA
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 Gesellschaft fuer Chemische Industrie in Basel CIBA filed Critical Gesellschaft fuer Chemische Industrie in Basel CIBA
Publication of GB350137A publication Critical patent/GB350137A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
    • D06P1/651—Compounds without nitrogen
    • D06P1/65106—Oxygen-containing compounds
    • D06P1/65143—Compounds containing acid anhydride or acid halide groups

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)

Abstract

Cellulosic fibres are converted without loss of structure and mechanical properties into cellulose derivatives immune to dyeing with direct dyestuffs, by treatment first with a solution of a salt which has a swelling action on cellulose, and then, with or without intermediate drying, with liquid acetic anhydride in the absence of a diluent. In examples, cotton is treated with solutions of potassium thiocyanate, calcium chloride neutralized if necessary with acetic acid, or magnesium chloride, and after such treatment, acted on with hot or boiling acetic anhydride. The Specification as open to inspection under Sect. 91 (3) (a) refers to a treatment of the cellulose with a solution of a salt having an accelerating effect on the acylation of cellulose, and also to a subsequent treatment with acylating agents. This subject-matter does not appear in the Specification as accepted.
GB11817/30A 1929-04-13 1930-04-14 Manufacture of cellulose derivatives Expired GB350137A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH350137X 1929-04-13

Publications (1)

Publication Number Publication Date
GB350137A true GB350137A (en) 1931-06-11

Family

ID=4508974

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11817/30A Expired GB350137A (en) 1929-04-13 1930-04-14 Manufacture of cellulose derivatives

Country Status (1)

Country Link
GB (1) GB350137A (en)

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