GB335675A - - Google Patents
Info
- Publication number
- GB335675A GB335675A GB23390/29A GB2339029A GB335675A GB 335675 A GB335675 A GB 335675A GB 23390/29 A GB23390/29 A GB 23390/29A GB 2339029 A GB2339029 A GB 2339029A GB 335675 A GB335675 A GB 335675A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cellulose
- bath
- acid
- ammonium
- acetate
- 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
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
- D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
Abstract
335,675. I. G.. Farbenindustrie Akt.- Ges. Nov. 8, 1928, [Convention date]. Addition to 334,030. Cellulose xanthates, processes for making filaments from.-Viscose made from unripened alkali-cellulose and containing excess of alkali as compared with its content of cellulose is spun into a solution of ammonium salt such as ammonium sulphate. For maintaining constant the reaction of the spinning bath, acid may be added. Other ammonium salts such as the acetate ur formate may be used. Other meutral salts such as sodium sulphate, chloride, acetate, or lactate may be present in addition to the ammonium salt. The bath may also contain additions as described in the parent Specification. For subsequent coagulation the formed threads are passed through an acid bath of low concentration such as a six per cent solution of sulphuric acid. The freshly precipitated threads may be subjected to stretching. The viscose is made from unripened cellulose by processes carried out at temperatures above 0‹ C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE334030X | 1928-10-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB335675A true GB335675A (en) | 1930-10-02 |
Family
ID=6213715
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23278/29A Expired GB334030A (en) | 1928-10-02 | 1929-07-29 | Improvements in spinning artificial silk |
| GB23390/29A Expired GB335675A (en) | 1928-10-02 | 1929-07-30 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23278/29A Expired GB334030A (en) | 1928-10-02 | 1929-07-29 | Improvements in spinning artificial silk |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB334030A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE749831C (en) * | 1939-02-25 | 1945-02-05 | Thueringische Zellwolle Ag | Process for the production of artificial threads from viscose |
-
1929
- 1929-07-29 GB GB23278/29A patent/GB334030A/en not_active Expired
- 1929-07-30 GB GB23390/29A patent/GB335675A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE749831C (en) * | 1939-02-25 | 1945-02-05 | Thueringische Zellwolle Ag | Process for the production of artificial threads from viscose |
Also Published As
| Publication number | Publication date |
|---|---|
| GB334030A (en) | 1930-08-28 |
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