GB230768A - - Google Patents

Info

Publication number
GB230768A
GB230768A GB385/25A GB38525A GB230768A GB 230768 A GB230768 A GB 230768A GB 385/25 A GB385/25 A GB 385/25A GB 38525 A GB38525 A GB 38525A GB 230768 A GB230768 A GB 230768A
Authority
GB
United Kingdom
Prior art keywords
addition
spinning
precipitating
rendered
electrolyte
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
GB385/25A
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.)
J P BEMBERG AKTIEN-GESELLSCHAFT
Original Assignee
J P BEMBERG AKTIEN-GESELLSCHAFT
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 J P BEMBERG AKTIEN-GESELLSCHAFT filed Critical J P BEMBERG AKTIEN-GESELLSCHAFT
Publication of GB230768A publication Critical patent/GB230768A/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
    • C08B1/006—Preparation of cuprammonium cellulose solutions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/18—Means for guiding or supporting belts, ropes, or chains

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Biochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Artificial Filaments (AREA)

Abstract

Solutions of cellulose in a mixture of pure copper hydroxide and ammonia are rendered more suitable for the spinning of artificial silk by the stretch-spinning process, by the addition of an electrolyte, especially sodium sulphate; by such an addition the temperature of the precipitating-bath may be reduced to 30 DEG C. or even lower.
GB385/25A 1941-08-01 1925-01-06 Expired GB230768A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE230768X 1941-08-01

Publications (1)

Publication Number Publication Date
GB230768A true GB230768A (en) 1925-03-19

Family

ID=5872121

Family Applications (1)

Application Number Title Priority Date Filing Date
GB385/25A Expired GB230768A (en) 1941-08-01 1925-01-06

Country Status (2)

Country Link
CH (1) CH230768A (en)
GB (1) GB230768A (en)

Also Published As

Publication number Publication date
CH230768A (en) 1944-01-31

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