SU109145A1 - The method of obtaining water-emulsion resins by condensation of total phenols and xylenols with formaldehyde - Google Patents
The method of obtaining water-emulsion resins by condensation of total phenols and xylenols with formaldehydeInfo
- Publication number
- SU109145A1 SU109145A1 SU565162A SU565162A SU109145A1 SU 109145 A1 SU109145 A1 SU 109145A1 SU 565162 A SU565162 A SU 565162A SU 565162 A SU565162 A SU 565162A SU 109145 A1 SU109145 A1 SU 109145A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- formaldehyde
- condensation
- xylenols
- obtaining water
- total phenols
- Prior art date
Links
Description
Изобретение относитс к области получени 1юдно-эмульсиоиных на основе фенолоформальдегндных смол дл нужд деревообрабатывающей промышленности.The invention relates to the field of producing 1-emulsioic based on phenol-formaldehyde resins for the needs of the woodworking industry.
Известные водно-эмульсионные клеи дл древесных материалов обычно получают, исход из прсдх ктоБ конденсации с формальдег до:.г синтетического фенола, который зл етс сравнительно дефицитным продуктом.Known water-emulsion adhesives for wood-based materials are usually obtained, starting from the production of condensation from formaldehyde to: g of synthetic phenol, which is a relatively scarce product.
Установлеио, что водмо-эмульсио: ые св зующие дл производства древес}10-строительных и древесноволокнистых плит и дл др. целей могут быть изготовлены путем конденсации технических ксиленолов и сулгмарных фенолов, получаемых при коксовании и газификации горючих ископаемых с температурой кипени 180-360°.It was established that water-emulsion: binders for wood production 10-building and fibreboard and for other purposes can be made by condensation of technical xylenols and sulgmar phenols obtained by coking and gasification of combustible minerals with a boiling point of 180-360 ° .
Получение смол осуществл ют конденсацией указанных феполов с формальдегидом при соотношени исходных компонентов 1 : 2, причем .процесс конденсации ведут в три стадии: в первой и второй - с кислым катализатором с 0,5 - 1 молем формальдегида при температуре соответственно 70 п 100°, а в третьей- со щелочным катализатором (3% NaOH) и с 1,5-1 молем формальдегида при 60° до получени продукта с требуемой в зкостью.The preparation of the resins is carried out by condensation of the indicated fepols with formaldehyde at a ratio of the starting components of 1: 2, and the condensation process is carried out in three stages: in the first and second with an acidic catalyst with 0.5-1 mol of formaldehyde at a temperature of respectively 70 and 100 ° and in the third with an alkaline catalyst (3% NaOH) and 1.5-1 mol of formaldehyde at 60 ° to obtain a product with the required viscosity.
Пример по л у ч е II и с м о .т ы. 100 вес. ч. сланцевых фенолов, 12 вес. ч. формальдегида и 0,072 вес. ч. сол ной кислоты конденсирует вначале 1 час при 70°, а затем 1 час прл 100°, во второй стадии в реакционную смесь ввод т еще 0,072 вес. ч. сол ной кислоты, а затем 0,094 вес. ч. 40%-ного едкого натра.An example of this is II and S m. 100 weight. including shale phenols, 12 wt. including formaldehyde and 0.072 weight. Partly hydrochloric acid first condenses at 70 ° C for 1 hour and then at 100 ° C for 1 hour, in the second stage another 0.072 wt. is introduced into the reaction mixture. including hydrochloric acid, and then 0.094 wt. including 40% caustic soda.
В третьей стадии добавл ют 37 вес. ч. формальдегида ц 2,45 вес. ч. едкого натра и конденсируют при 60° до образовани смо;1ы с в зкостью, лежащей в пределах 20-40° Е. В готовую смолу, ввод т 5-10% этилового спирта.In the third stage, 37 wt. including formaldehyde c 2.45 weight. including caustic soda and condensed at 60 ° C to form a resin; with viscosity lying in the range of 20-40 ° E. Into the finished resin, 5-10% ethanol is added.
Дл получени смо.ты на основе ксиленолов можно вести конденсациюв присутствии контакта Петрова в качестве кислого катализатора.To obtain xylenol-based smits, condensation can be carried out in the presence of Petrov contact as an acidic catalyst.
Смолы содержат 50-60 d сухого остатка. Содержание свободного фенола колеб/гетс от 5 до 10%.Resins contain 50-60 d of dry residue. The content of free phenol fluctuations / hets from 5 to 10%.
На основе получепны.к с.мо.ч могут быть изготовлены древесно-струженные плиты е пределом прочности на статический изгиб 150-200 кг/слг.On the basis of the semi-finished fabrication of the core, wood-shaving plates with a static bending strength of 150–200 kg / sg can be made.
Предмет и з о б р е т е н и Subject and title
Способ получени водпо-эму.тьсионных с.мол путем конденсации суммарных фенолов и ксиленолов с формальдегидом , о т л и ч а ю щ и и с тем, что, в цел х повып1ени адгезионных свойств и водорастворимост: смол, конденсацию провод т на первой фазе в присутст15ии кис.того катализатора с 0,5-1 молем формальдегида н на второй фазе в присутствии 3 /oNaOH п остального, недостаюп1 ,его до двух молей количества формальдегида.The method of obtaining water solids emulsion by condensation of total phenols and xylenols with formaldehyde, with the fact that, in order to improve the adhesion properties and water solubility: tar, the condensation is carried out on the first phase in the presence of an acid catalyst with 0.5–1 mol of formaldehyde and the second phase in the presence of 3 / oNaOH and the rest, lacking 1 to 2 moles of formaldehyde.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU565162A SU109145A1 (en) | 1957-01-22 | 1957-01-22 | The method of obtaining water-emulsion resins by condensation of total phenols and xylenols with formaldehyde |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU565162A SU109145A1 (en) | 1957-01-22 | 1957-01-22 | The method of obtaining water-emulsion resins by condensation of total phenols and xylenols with formaldehyde |
Publications (1)
Publication Number | Publication Date |
---|---|
SU109145A1 true SU109145A1 (en) | 1957-11-30 |
Family
ID=48382199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU565162A SU109145A1 (en) | 1957-01-22 | 1957-01-22 | The method of obtaining water-emulsion resins by condensation of total phenols and xylenols with formaldehyde |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU109145A1 (en) |
-
1957
- 1957-01-22 SU SU565162A patent/SU109145A1/en active
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