US1689895A - Method of spinning artificial silk - Google Patents

Method of spinning artificial silk Download PDF

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Publication number
US1689895A
US1689895A US180994A US18099427A US1689895A US 1689895 A US1689895 A US 1689895A US 180994 A US180994 A US 180994A US 18099427 A US18099427 A US 18099427A US 1689895 A US1689895 A US 1689895A
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US
United States
Prior art keywords
spinning
artificial silk
carbon dioxide
bath
bicarbonate
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 - Lifetime
Application number
US180994A
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English (en)
Inventor
Schmidt Hermann
Hubert Emil
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Application granted granted Critical
Publication of US1689895A publication Critical patent/US1689895A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D01F2/02Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from solutions of cellulose in acids, bases or salts
    • D01F2/04Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from solutions of cellulose in acids, bases or salts from cuprammonium solutions

Definitions

  • HERMANN SCHMIDT OF WIESDORF-ON-THE-BHINE, AND EMIL HUBERT, F ELBER- FELD, GERKANY, ASSIGNOIQS TO I. G. FARBENINDUSTBIE AKTIENGESELLSCHAFT, 0F FBANKFORT-ON-TEE-KAIN, GERMANY.
  • This invention relates to a new method of spinning artificial silk fromcuprammonium cellulose solutions and involves the use of an aqueous precipitating bath containing dis- 5 solved carbon dioxide or carbonic acid or its chemical equivalent, a soluble bicarbonand elasticity than silk produced by spin-.
  • the aqueous precipitating bath may contain carbon dioxide dissolved therein and chemically combined with water as thehypothetical acid H 00 or chemi-- cally com med with metals as bior acid carbonates as NaHCO
  • the bicarbonate may be added to the bath as such, for ininstance, as sodium bicarbonate or formed in the bath by treating a solution of a metal hydroxide or carbonate with carbon dioxide. It will be further understood that in the vention threads is then effected according tp the cusfrom cuprammoniumcellulose appended claims where reference is made to dissolved carbon dioxide, carbonic acid and acid carbonates are embraced.
  • Emmple 2.-Cuprammonium cellulose solution is precipitated. in water containing approximately 2 grams of sodium bicarbonate per liter'in a spinning vessel, for examleaccording to the process of German Pat.
  • Process for the manufacture of artificial silk which comprises spinning a cuprammonium cellulose solution into an aqueous precipitating bath containing a bicarbonate in solution.
  • Process for. the manufacture of artificial silk which comprises spimiing a cuprammonium cellulose solution into an aqueous precipitating bath containing a bicarbonate of an alkali iorming metal in solution.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)
US180994A 1926-06-11 1927-04-04 Method of spinning artificial silk Expired - Lifetime US1689895A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1689895X 1926-06-11

Publications (1)

Publication Number Publication Date
US1689895A true US1689895A (en) 1928-10-30

Family

ID=7739477

Family Applications (1)

Application Number Title Priority Date Filing Date
US180994A Expired - Lifetime US1689895A (en) 1926-06-11 1927-04-04 Method of spinning artificial silk

Country Status (4)

Country Link
US (1) US1689895A (en, 2012)
BE (1) BE342824A (en, 2012)
FR (1) FR635774A (en, 2012)
NL (2) NL23476C (en, 2012)

Also Published As

Publication number Publication date
FR635774A (fr) 1928-03-24
NL21377C (en, 2012)
NL23476C (en, 2012)
BE342824A (en, 2012)

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