SU54518A1 - The method of producing glue - Google Patents

The method of producing glue

Info

Publication number
SU54518A1
SU54518A1 SU1220A SU54518DA SU54518A1 SU 54518 A1 SU54518 A1 SU 54518A1 SU 1220 A SU1220 A SU 1220A SU 54518D A SU54518D A SU 54518DA SU 54518 A1 SU54518 A1 SU 54518A1
Authority
SU
USSR - Soviet Union
Prior art keywords
creosote
glue
fraction
lignin
producing glue
Prior art date
Application number
SU1220A
Other languages
Russian (ru)
Inventor
Б.А. Смирнов
Original Assignee
Б.А. Смирнов
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 Б.А. Смирнов filed Critical Б.А. Смирнов
Application granted granted Critical
Publication of SU54518A1 publication Critical patent/SU54518A1/en

Links

Description

Изобретение относитс  к области клеев дл  фанеры и дает способ получени  кле  на основе креозотовой фракции древесных смол и технического лигнина.Как известно, креозотова  фракци  древесных смол получаетс  путем разгонки последних или под вакуумом или на голом огне под атмосферным давлением-отбираетс  фракци , кип ща  от 170 до 270° (без вакуума ).The invention relates to the field of adhesives for plywood and provides a method for producing adhesives based on the creosote fraction of wood resins and technical lignin. As is known, the creosote fraction of wood resins is obtained by distilling the latter either under vacuum or on low heat under atmospheric pressure — the fraction boiling from 170 to 270 ° (without vacuum).

Фракци , полученна  из смолы лиственных пород (главным образом, березовой), обычно содержит от 40 до 60% соединений фенольного характера , которые после нейтрализации кислот содой и отделени  их выдел ютс  из нее путем обработки 10- 15%-м раствором NaOH и разложением образовавшихс  фенол тов серной кислотой и нос т название „сырого креозота.The fraction obtained from hardwood gum (mainly birch) usually contains from 40 to 60% of phenolic compounds, which, after neutralizing the acids with soda and separating them, are removed from it by treating with 10-15% NaOH solution and decomposing phenols with sulfuric acid and are called “raw creosote”.

Смолу, пригодную дл  предлагаемого фанерного кле , возможно получить и из обработанной содой креозотовой фракции и из сырого креозота .Resin suitable for the proposed plywood glue can be obtained from soda-treated creosote fraction and from raw creosote.

Второй компонент кле -технический лигнин  вл етс  отходом древесины после гидролиза.The second component of the technical lignin glue is wood waste after hydrolysis.

При получении креозото-лигнинной композиции сырой креозот или креозотовую фракцию смешивают с серной кислотой и при перемешивании и нагреве до 135° порци ми добавл ют лигнин. Реакци  продолжаетс  от 12 до 15 часов.In the preparation of the creosotole-lignin composition, the raw creosote or creosote fraction is mixed with sulfuric acid and lignin is added in portions with stirring and heating to 135 °. The reaction lasts from 12 to 15 hours.

По отношению к содержащимс  в креозоте растворимым в щелочи веществам (фенолам) количество серной кислоты (уд. вес 1,84) должно составить 5%, а лигнина 70-80%.In relation to alkaline-soluble substances (phenols) contained in creosote, the amount of sulfuric acid (specific weight 1.84) should be 5%, and lignin 70-80%.

К образовавшейс  смоле добавл етс  от 6 до 7% уротропина и от 8 до 12% гашеной извести в виде известкового молока.From 6 to 7% of hexamine and from 8 to 12% of hydrated lime in the form of milk of lime are added to the resulting resin.

Дл  приготовлени  кле  из полученной смолы приготовл етс  с водой эмульси , причем количество воды (приблизительно в 1,5-2 раза больше смолы) регулируетс  в зависимости от желательной густоты кле . Приготовленна  эмульси  должна быть использована в течение 1-2 дней.For the preparation of glue from the obtained resin, an emulsion is prepared with water, and the amount of water (approximately 1.5-2 times the resin) is adjusted depending on the desired thickness of the adhesive. The prepared emulsion should be used within 1-2 days.

Полученный клей наноситс  на шпон обычными способами, причем расход кле  на 100 -W составл ет 18-25 кг.The resulting glue is applied to the veneer in the usual way, and the glue consumption per 100 -W is 18-25 kg.

Конденсаци  кле  производитс  в прессах при нагревании до 160° при возможно высоких давлени х.Condensation of the adhesive is carried out in presses when heated to 160 ° at as high pressures as possible.

SU1220A 1937-09-21 1937-09-21 The method of producing glue SU54518A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU54518T 1937-09-21

Publications (1)

Publication Number Publication Date
SU54518A1 true SU54518A1 (en) 1938-11-30

Family

ID=52395412

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1220A SU54518A1 (en) 1937-09-21 1937-09-21 The method of producing glue

Country Status (1)

Country Link
SU (1) SU54518A1 (en)

Similar Documents

Publication Publication Date Title
US3658638A (en) Plywood process and product wherein the adhesive comprises a lignosulfonate-phenol-formaldehyde reaction product
US3597375A (en) Adhesive composition from lignosulfonate phenoplasts
SU54518A1 (en) The method of producing glue
DE1171606B (en) Process for curing phenol-aldehyde condensates
US2150697A (en) Method of making plywood
US1932255A (en) Molding composition of fibrous vegetable material and furfural
US4045386A (en) Alkali-treated bark extended tannin-aldehyde resinous adhesives
JP2021506631A (en) Modified wood products and manufacturing methods for the products
DE4030718A1 (en) Lignin based binder prodn. from black liquor or thick liquor - by concn. of liquor, addn. of alkali, addn. of phenol and formaldehyde or para:formaldehyde and condensn.
US2534908A (en) Method for the manufacture of molded articles
NO760226L (en)
US2501666A (en) Lignin resins and process of making same
US4289663A (en) Method of producing synthetic resin from waste products
CN110770303A (en) Liquid lignin composition comprising lignin, water, alkali and urea
SU36539A1 (en) The method of producing glue
SU504708A1 (en) The method of purification of the resinous waters of phenol-formaldehyde production
DE935142C (en) Glue film for gluing wood and similar materials
US2196452A (en) Production of condensation products of vinyl methyl ketone and water-soluble aldehydes
SU70751A1 (en) The method of obtaining bakelite wood
SU119641A1 (en) The method of obtaining thermosetting glue
GB729220A (en) Improvements relating to methods of preparing lignin resins from alkaline lignin solutions
Palmer The Effect of Catalyzers on the Yield of Products in the Destructive Distillation of Hardwoods
SU80918A1 (en) The method of obtaining resin from sulphite pulp liquor or sulphite pulp stillage
GB507013A (en) Improvements in or relating to the production of synthetic resins
SU39348A1 (en) The method of obtaining molding ground