GB301088A - - Google Patents

Info

Publication number
GB301088A
GB301088A GB34592/28A GB3459228A GB301088A GB 301088 A GB301088 A GB 301088A GB 34592/28 A GB34592/28 A GB 34592/28A GB 3459228 A GB3459228 A GB 3459228A GB 301088 A GB301088 A GB 301088A
Authority
GB
United Kingdom
Prior art keywords
alkali
caustic alkali
per cent
mass
dried
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
GB34592/28A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB301088A publication Critical patent/GB301088A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
    • C08B1/08—Alkali cellulose

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)

Abstract

301,088. Zellstofffabrik Waldhof, Hottenroth, V., and Faust, O. Nov. 24, 1927, [Convention date]. Preparatory treatment of cellulose.-The reactivity of cellulosic material of all kinds is increased by treating it with caustic alkali liquor containing less than 18 per cent of alkali, pressing to remove excess of alkali and thereafter subjecting the material saturated with caustic alkali to a ripening process followed by a washing treatment to remove the caustic alkali. In an example, air-dried bleached sulphite cellulose is immersed in 12 per cent soda lye and pressed off to about three times the original weight. The expressed mass is separated into fibres and stored in sheet metal drums for 5 days at 25‹ C., after which time the mass is washed, acidified, and neutralized. The material can be dried in known manner or used directly in the moist state. Reference has been directed by the Comptroller to Specifications 212,864 and 212,865.
GB34592/28A 1927-11-24 1928-11-23 Expired GB301088A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE301088T 1927-11-24

Publications (1)

Publication Number Publication Date
GB301088A true GB301088A (en) 1930-03-24

Family

ID=31894290

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34592/28A Expired GB301088A (en) 1927-11-24 1928-11-23

Country Status (1)

Country Link
GB (1) GB301088A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2638415A (en) * 1948-01-14 1953-05-12 Celanese Corp Production of cellulose

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2638415A (en) * 1948-01-14 1953-05-12 Celanese Corp Production of cellulose

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