SU106645A1 - The method of manufacturing plastics - Google Patents

The method of manufacturing plastics

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Publication number
SU106645A1
SU106645A1 SU454872A SU454872A SU106645A1 SU 106645 A1 SU106645 A1 SU 106645A1 SU 454872 A SU454872 A SU 454872A SU 454872 A SU454872 A SU 454872A SU 106645 A1 SU106645 A1 SU 106645A1
Authority
SU
USSR - Soviet Union
Prior art keywords
acetone
solution
furfural
plastics
condensation
Prior art date
Application number
SU454872A
Other languages
Russian (ru)
Inventor
А.Ф. Киблер
В.И. Итинский
И.И. Грабовский
В.М. Козин
И.В. Самборский
Л.В. Хажакян
Н.Н. Остер-Волков
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 filed Critical
Priority to SU454872A priority Critical patent/SU106645A1/en
Application granted granted Critical
Publication of SU106645A1 publication Critical patent/SU106645A1/en

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Description

Во МНОГИХ отрасл х промышленности существует потребность в пластмассах, обладаюишх высокой механической прочностью, огнестойкостью и химической устойчивостью.In many industries there is a need for plastics; they have a high mechanical strength, fire resistance and chemical resistance.

Предлагаемое изобретение позвол ет получать посредством конденсации фурфурола с ацетоном пластмассу, котора  в растворе органического растворител  или сама по себе может служить дл  пропитки дерева в цел х придани  ему негорючести, ненабухаемости и стойкости к химическим реагентам, а также дл  пропитки тканп, бумаги и др. материало в . Вместе с асбестовым наполнителем может быть получена огнестойка  пластмасса дл  изготовлени  прессованных изделий. Пластмасса, полученна  на основе продуктов конденсации фурфурола и ацетона с асбестовым наполнителем, после выдерживани  в пр одолженис 400 час в ацетоне увеличиваетс  в весе на 1,29%; за то же врем  в среде бензола привес составл ет 1,35%, в хлороформе 0,5%, а в азотной кислоте 54%-ной концентрации привес равен 1,31%, в серной кислоте 80%-ной концентрации привес составл ет 1,86%, в 20%-ном растворе едкого натра - 1,62%. При термообработке в продолжение 4 час при 500° потери летучих составл ют 1,25%, а при 900° 3,15%. Пример. Получение .огнестойкой пластмассы. Смесь 96 г {1 моль) фурфурола, 58 г (1 моль) ацетона и 5 г 20%-ного водного раствора едкого натра подвергают нагреванию в колбе с обратным холодильником при температуре 70-80° в продолжение 3-4 час при перемешивании и полученный жидкий продукт конденсации подвергают термообработке при 125-135° до хрупкого состо ни . Хрупка  смола, получаюш,а с  с выходом, близким кколичественному, раствор етс  в ацетоне. Дл  пропитки асбеста, в цел х получени  прессованных изделий, приготовл ют 40%-ный раствор вышеуказанной смолы . В этом случае асбестовое волокно предварительно пропитываютThe present invention makes it possible to obtain plastic by condensation of furfural with acetone, which in solution of an organic solvent or by itself can serve to impregnate wood in order to make it incombustible, non-swellable and resistant to chemical reagents, as well as to impregnate fabric, paper, etc. material in Together with asbestos filler, flame retardant plastics can be obtained for the manufacture of extruded products. The plastic obtained on the basis of the condensation products of furfural and acetone with asbestos filler, after keeping for 4 hours in acetone, increases in weight by 1.29%; at the same time, in benzene, the weight gain is 1.35%, in chloroform, 0.5%, and in nitric acid, 54% concentration is 1.31%; in sulfuric acid, 80% concentration is 1 , 86%, in a 20% solution of caustic soda - 1.62%. When heat treated for 4 hours at 500 °, the loss of volatiles is 1.25%, and at 900 ° it is 3.15%. Example. Receiving .Non-resistant plastics. A mixture of 96 g {1 mol) furfural, 58 g (1 mol) of acetone and 5 g of a 20% aqueous solution of caustic soda is heated in a flask with reflux at a temperature of 70-80 ° for 3-4 hours with stirring and the resulting the liquid condensation product is heat treated at 125-135 ° to a brittle state. The brittle resin is obtained, and with a yield close to quantitative, it dissolves in acetone. For the impregnation of asbestos, in order to obtain pressed articles, a 40% solution of the above resin is prepared. In this case, asbestos fiber is pre-impregnated

NO 106645 ,,;.,,vH 2 NO 106645 ,,;. ,, vH 2

10%-ным раство.В(Э.м. п.олифосй)4рной кислоты, затем раствором смолы и прессуют, при удельном давлейии250-300 кг/сж. Врем  прессовани - 1,5-2 лгмн на-I- Лштолщины издели . Температура около 200° с последующей закалкой готового издели  при более высокой температуре.10% solution. In (EM. P. Polyphosia) 4-acid acid, then with a solution of the resin and pressed, with a specific pressure of 250-300 kg / comp. Pressing time - 1.5-2 lgm-on-I- Most product thicknesses. Temperature of about 200 ° C, followed by quenching the finished product at a higher temperature.

Предмет изобретени Subject invention

Способ изготовлени  пластмассы на основе смолы, полученной конденсацией фурфурола в присутствии едкого натра, отличающийс  тем что с целью придани  пластмассе огнестойкости, смолу, полученную конденсацией эквимолекул рных количеств ацетона и фурфурола в присутствии 20%-ного раствора едкого натра, подвергают термообработке при 125-235° до хрупкого состо ни , после чего раствор ют в ацетоне, добавл ют наполнитель (асбестовое волокно), кислый катализатор и прессуют при температуре 200° и выше.A method of making resin-based plastic obtained by condensation of furfural in the presence of caustic soda, characterized in that in order to impart flame retardancy to the plastic, the resin obtained by condensation of equimolecular amounts of acetone and furfural in the presence of a 20% sodium hydroxide solution is heat treated at 125-235 To a brittle state, after which it is dissolved in acetone, a filler (asbestos fiber), an acid catalyst are added and pressed at a temperature of 200 ° and above.

SU454872A 1954-05-14 1954-05-14 The method of manufacturing plastics SU106645A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU454872A SU106645A1 (en) 1954-05-14 1954-05-14 The method of manufacturing plastics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU454872A SU106645A1 (en) 1954-05-14 1954-05-14 The method of manufacturing plastics

Publications (1)

Publication Number Publication Date
SU106645A1 true SU106645A1 (en) 1975-12-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU454872A SU106645A1 (en) 1954-05-14 1954-05-14 The method of manufacturing plastics

Country Status (1)

Country Link
SU (1) SU106645A1 (en)

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