SU41679A1 - The method of preparation of suitable dispersion of nitrocellulose and other cellulose ethers - Google Patents
The method of preparation of suitable dispersion of nitrocellulose and other cellulose ethersInfo
- Publication number
- SU41679A1 SU41679A1 SU128555K SU128555K SU41679A1 SU 41679 A1 SU41679 A1 SU 41679A1 SU 128555 K SU128555 K SU 128555K SU 128555 K SU128555 K SU 128555K SU 41679 A1 SU41679 A1 SU 41679A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- cellulose ethers
- nitrocellulose
- preparation
- solution
- aqueous
- Prior art date
Links
Description
Предлагаемый способ имеет целью приготовление водных растворов нитроцеллюлозы и других эфиров целлюлозы . Способ состоит в том, что к эфирам целлюлозы прибавл ют смолы, например березовую смолу, и водный раствор аммиака дл ускорени набухани эфиров целлюлозы. К полученной смеси прибавл ют при перемешивании воду, содержащую поверхностно активные или защитные коллоиды, на- i пример, водный раствор желатина до 1 разделени , после чего полученную водную дисперсию эфиров целлюлозы I отдел ют обычным образом. Раствор желатина можно частично заменить раствором ацетоуксусного эфира с прибавлением раствора едкого натра. Концетраци дисперсии определ етс в за- I висимости от ее назпачени . Водные i дисперсии нитроклетчатки и других эфиров целлюлозы, полученные по предлагаемому способу, могут найти себе применение в лакокрасочной промы ь ленпрсти, а также при производстсе целлюлоида и искусственных кож (гранитоль , дермантин и т. п.).The proposed method aims at the preparation of aqueous solutions of nitrocellulose and other cellulose ethers. The method consists in adding resins, for example birch resin, and an aqueous solution of ammonia to cellulose ethers to accelerate the swelling of cellulose ethers. While stirring, water is added to the resulting mixture containing surface-active or protective colloids, for example, an aqueous solution of gelatin to 1 separation, after which the resulting aqueous dispersion of cellulose ethers I is separated in the usual way. The solution of gelatin can be partially replaced by a solution of acetoacetic ester with the addition of sodium hydroxide solution. The concentration of the dispersion is determined depending on its application. The aqueous and dispersions of nitrocellulose and other cellulose ethers obtained by the proposed method can be used in the paint and varnish industry and in the production of celluloid and artificial leather (granitol, dermantin, etc.).
(67)(67)
Пример. 1-4. нитроклетчатки дают набухать в 5 ч. лиственной смолы (фракци с температурой кипени около 200° С) при нагревании на вод ной бане. Дл ускорени процесса набухани к полученному раствору добавл ют при перемешивании в мешалке воду, содержащую желатин (1 ч. 10%-го раствора желатина или траганта в воде), после чего добавл ют еще некоторое количество воды до разделени фаз. В результате получаетс водна эмульси нитроклетчатки.Example. 1-4. nitrocellulose is allowed to swell in 5 parts of a leafy resin (fraction with a boiling point of about 200 ° C) when heated in a water bath. To speed up the swelling process, water containing gelatin (1 part of a 10% solution of gelatin or traganth in water) is added to the resulting solution with stirring in a mixer, after which some more water is added before the phases are separated. The result is an aqueous nitrocellular emulsion.
Предмет и з о б р е т ей и .Subject and d about her and her.
1. Способ приготовлен; водных дисперсий нитроцеллюлозы и других эфиров целлюлозы, отличающийс тем, что к эфЕрам целлюлозы црибавл ют смолы, например березовую смолу, и водный раствор аммиака, с целью набухани эфиров целлюлозы, затем прибавл ют коллоиды, например водный раствор желатина, дл разделени фаз и полученную водную дисперсию эфиров отдел ют.1. The method is prepared; aqueous dispersions of nitrocellulose and other cellulose ethers, characterized in that resin pulps, such as birch resin, and aqueous ammonia are added to cellulose efficiencies, to swell cellulose ethers, then colloids, such as gelatin aqueous solution, are added to separate the phases and the resulting aqueous the dispersion of the esters is separated.
2. Прием выполнени способа, указанного в п. 1, отличающийс тем, что раствор желатина частично замен ют раствором ацетон-уксусного эфира с прибавлениемраствора едкого натра.2. Acceptance of the method described in paragraph 1, characterized in that the gelatin solution is partially replaced by a solution of acetone-ethyl acetate with the addition of sodium hydroxide solution.
3. Прием выполнени способа, указанного в п. 1, отличающийс тем, что к эфирам целлюлозы прибавл ют лишь смолы, воду и защитные коллоиды.3. Acceptance of the method described in claim 1, characterized in that only gums, water and protective colloids are added to the cellulose ethers.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU128555A SU36262A1 (en) | 1933-05-13 | 1933-05-13 | A method for the manufacture of clinkerless anhydrite cement |
Publications (1)
Publication Number | Publication Date |
---|---|
SU41679A1 true SU41679A1 (en) | 1935-02-28 |
Family
ID=48352788
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU128555K SU41679A1 (en) | 1933-05-13 | 1933-05-13 | The method of preparation of suitable dispersion of nitrocellulose and other cellulose ethers |
SU128555A SU36262A1 (en) | 1933-05-13 | 1933-05-13 | A method for the manufacture of clinkerless anhydrite cement |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU128555A SU36262A1 (en) | 1933-05-13 | 1933-05-13 | A method for the manufacture of clinkerless anhydrite cement |
Country Status (1)
Country | Link |
---|---|
SU (2) | SU41679A1 (en) |
-
1933
- 1933-05-13 SU SU128555K patent/SU41679A1/en active
- 1933-05-13 SU SU128555A patent/SU36262A1/en active
Also Published As
Publication number | Publication date |
---|---|
SU36262A1 (en) | 1934-04-30 |
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