SU47816A1 - Method of making pressing masses - Google Patents
Method of making pressing massesInfo
- Publication number
- SU47816A1 SU47816A1 SU177901A SU177901A SU47816A1 SU 47816 A1 SU47816 A1 SU 47816A1 SU 177901 A SU177901 A SU 177901A SU 177901 A SU177901 A SU 177901A SU 47816 A1 SU47816 A1 SU 47816A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- urea
- making pressing
- water
- fatty acids
- pressing
- Prior art date
Links
- 238000003825 pressing Methods 0.000 title description 7
- 238000004519 manufacturing process Methods 0.000 title description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- MGJKQDOBUOMPEZ-UHFFFAOYSA-N N,N'-dimethylurea Chemical compound CNC(=O)NC MGJKQDOBUOMPEZ-UHFFFAOYSA-N 0.000 description 6
- 235000014113 dietary fatty acids Nutrition 0.000 description 6
- 229930195729 fatty acid Natural products 0.000 description 6
- 239000000194 fatty acid Substances 0.000 description 6
- 150000004665 fatty acids Chemical class 0.000 description 6
- QUBQYFYWUJJAAK-UHFFFAOYSA-N oxymethurea Chemical compound OCNC(=O)NCO QUBQYFYWUJJAAK-UHFFFAOYSA-N 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000000945 filler Substances 0.000 description 5
- 229950005308 oxymethurea Drugs 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000004202 carbamide Substances 0.000 description 4
- 235000013877 carbamide Nutrition 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- TUMNHQRORINJKE-UHFFFAOYSA-N 1,1-diethylurea Chemical compound CCN(CC)C(N)=O TUMNHQRORINJKE-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229940024472 emollients and protectives carbamide product Drugs 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Phenolic Resins Or Amino Resins (AREA)
Description
Изобретение относитс к способу получени прессовочных композиций на основе карбамидных смол (аминопластов). Получение прессовочных карбамидных изделий имеет р д трудностей, которые встречаютс при пропитке карбидной смолой наполнител и при удалении воды до определенной нормы в прессовочном материале. Помимо этого от прессовочного издели во многих случа х требуетс отсутствие непри тного запаха, чего чрезвычайно трудно достичь , так как обычно в продуктах конденсации мочевины |всегда содержитс свободный формальдегид или метиламин . Кроме того эти продукты (аминопласты ) отличаютс низкой водостойкостью .The invention relates to a process for the preparation of molding compositions based on carbamide resins (aminos). The preparation of pressing carbamide products has a number of difficulties that are encountered in the impregnation of the filler with carbide resin and in the removal of water to a certain standard in the compression material. In addition, in many cases the absence of an unpleasant odor is required from the pressing product, which is extremely difficult to achieve, since usually free formaldehyde or methylamine is always present in the urea condensation products. In addition, these products (aminos) are characterized by low resistance to water.
Авторы считают, что лучшие резуль таты можно получить, если дл приготовлени прессовочных композиций брать в качестве исходного продукта диметилолмочевину. Диметилолмочевина была в свое врем предложена Эллисом и Вальтером. Эллис предложил получать прессованные издели из диметилолмочевины и наполнител в присутствии кислого катализатора, Вальтер дл получени чистых карбамидных смол нагревал диметилолмочевину в присутствии кислот. В отличие от методов.The authors believe that the best results can be obtained if dimethyl urea is used as the starting product for the preparation of pressing compositions. Dimethylol urea was at one time proposed by Ellis and Walter. Ellis proposed to make extruded products from dimethyl urea and a filler in the presence of an acidic catalyst, Walter to heat the pure carbamide resins to heat dimethyl urea in the presence of acids. Unlike methods.
предлагаемых Эллисом, авторы комбинируют диметилолмочевину с р дом солей , которые, ускор в порах наполнител процесс превращени диметилола в смолу, в то же врем , распредел сь в наполнителе, могут повысить водостойкость прессовочного издели . В качестве таких добавок авторы примен ют аммониевые смолы жирных кислот в водных или спиртовых или водноспиртовых растворах. При сушке прессовочной композиции аммонийные мыла разлагаютс , выдел ющийс аммиак активирует процесс превращени диметилолмочевину в смолу, а полученные в результате разложени аммонийных мыл жирные кислоты дисперигируютс в прессовочном материале и при прессовании распредел ютс в поверхностном слое издели , образу защитную против действи воды пленку. Присутствие в водном растворе диметилолмочевины солей жирных кислот, понижающих поверхностное нат жение водных растворов, облегчает пропитку целлюлозного или древесного наполнител . Количество аммонийных солей жирных кислот, прибавл емое к растворам диметилолмочевнны , колеблетс в широких пределах, в зависимости от свойств, жирных кислот (например от 1 до 10%proposed by Ellis, the authors combine dimethylol urea with a number of salts, which, accelerating in the pores of the filler, the process of converting dimethylol to a resin, at the same time, being distributed in the filler, can improve the water resistance of the compact. As such additives, the authors used ammonium gums of fatty acids in aqueous or alcoholic or hydroalcoholic solutions. When drying the pressing composition, ammonium soaps decompose, the released ammonia activates the process of converting dimethyl urea into a resin, and the fatty acids obtained as a result of decomposition of ammonium soaps are dispersed in the pressing material and pressed to form a protective film against the action of water. The presence in the aqueous solution of dimethylol urea salts of fatty acids, which reduce the surface tension of aqueous solutions, facilitates the impregnation of the cellulose or wood filler. The amount of ammonium salts of fatty acids added to dimethylol urea solutions varies widely, depending on the properties of fatty acids (for example, from 1 to 10%
от диметилолмочевины). Дл производственного процесса может примен тьс как кристаллическа днметилолмочёвина , котора затем раствор етс в воде, так и водные раствори дийетилолмочевины , которые получаютей при йондёнсацйй MOttjsSHHbi с фЬрМаЛьдёгйд5м и определенных соотношени х и услови х и не довод тс до кристаллического состо ни . В последнем случае дл очистки водных растворов диметилолмочевины ее подвергают отбелке углем.from dimethylolurea). For the production process, both crystalline dmethylolurea can be used, which then dissolves in water, and aqueous solutions of di-methyl-urea, which are obtained during the MOttjsSHHbi with frmpaDygd5m and form a mixture of crystalline crystals and conditions, and it is difficult to find a crystal. In the latter case, for the purification of aqueous solutions of dimethylolurea it is subjected to bleaching with charcoal.
Предмет изобретени .The subject matter of the invention.
Способ изготовлени прессовочных масс на основе карбамидных смол путем пропйтйЙминеральнУх или органивеских напо йите ей водными или спирfbsyMk растворами дйИётйлЬлмочевйны, отличающийс тем, что при пропитке к раствору диметилолмочевины добавл ют аммонийные соли жирных кислот, после чего полученную композицию сушат и прессуют обычными способамиA method of manufacturing pressing compounds based on carbamide resins by applying Mineral or organic water with water or spiritsMk solutions of DIETHYL Urea, characterized in that, when impregnated, ammonium salts of fatty acids are added to the solution of dimethyl urea, after which they are added, after the sample, they are added to the solution of dimethyl lurea by means of hydrogen, and then they are inhaled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU177901A SU47816A1 (en) | 1935-10-08 | 1935-10-08 | Method of making pressing masses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU177901A SU47816A1 (en) | 1935-10-08 | 1935-10-08 | Method of making pressing masses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU47816A1 true SU47816A1 (en) | 1936-07-31 |
Family
ID=48360850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU177901A SU47816A1 (en) | 1935-10-08 | 1935-10-08 | Method of making pressing masses |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU47816A1 (en) |
-
1935
- 1935-10-08 SU SU177901A patent/SU47816A1/en active
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