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 ethers

Info

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
Application number
SU128555K
Other languages
Russian (ru)
Inventor
П.И. Павлович
Original Assignee
П.И. Павлович
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 П.И. Павлович filed Critical П.И. Павлович
Application granted granted Critical
Publication of SU41679A1 publication Critical patent/SU41679A1/en

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.

SU128555K 1933-05-13 1933-05-13 The method of preparation of suitable dispersion of nitrocellulose and other cellulose ethers SU41679A1 (en)

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)

Also Published As

Publication number Publication date
SU36262A1 (en) 1934-04-30

Similar Documents

Publication Publication Date Title
SU41679A1 (en) The method of preparation of suitable dispersion of nitrocellulose and other cellulose ethers
DE1254346B (en) Process for the production of water-insoluble gelatin layers
GB459665A (en) Improvements in photographic developers
GB386018A (en) Improvements in and relating to the dressing or sizing of paper
SU24501A1 (en) Method of making carcass
CH256766A (en) Process for the production of a new half-ester.
DE765403C (en) Process for the production of brandy jellies
GB427613A (en) Process of preparing solutions of cellulose in sulphuric acid and artificial silk threads, films, bands, and such like artificial products thereof
DE900308C (en) Process for the production of water vapor impermeable coatings on structureless foils
DE439598C (en) Process for the production of spinning melts
GB510705A (en) Process for preparing nitrocellulose
DE806994C (en) Process for the preparation of an anti-coagulant
US1972098A (en) Cuprammonium process for dissolving cellulose
Betrabet et al. THE COLOURING CONSTITUENTS OF ALKANET ROOT (Anchusa Tinctotia, LAM.). II. NOTE ON CONSTITUENTS OF THE WAX FROM ALKANET ROOT
DE764707C (en) Process for the extraction of organic substances from the sulphite waste liquor
DE385962C (en) Process for the production of structures consisting of cellulose and alkyl cellulose
DE457725C (en) Process for the production of chromium-free gelatin
DE257015C (en)
DE662035C (en) Process for the production of laxatives
GB470482A (en) Improvements in or relating to gelatine and glue compositions
GB415256A (en) Improvements in or connected with adhesives
GB213631A (en) Improvements in the manufacture of cellulose acetate
GB496665A (en) Improved manufacture of films, threads or the like from polymerides
GB536329A (en) Improvements relating to colour photography
CH180691A (en) Process for the preparation of an azo dye.