SU151025A1 - The method of obtaining colored polyethylene terephthalate - Google Patents

The method of obtaining colored polyethylene terephthalate

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Publication number
SU151025A1
SU151025A1 SU751545A SU751545A SU151025A1 SU 151025 A1 SU151025 A1 SU 151025A1 SU 751545 A SU751545 A SU 751545A SU 751545 A SU751545 A SU 751545A SU 151025 A1 SU151025 A1 SU 151025A1
Authority
SU
USSR - Soviet Union
Prior art keywords
colored polyethylene
polyethylene terephthalate
obtaining colored
colored
terephthalate
Prior art date
Application number
SU751545A
Other languages
Russian (ru)
Inventor
А.Н. Быков
Г.Н. Смирнова
Original Assignee
А.Н. Быков
Г.Н. Смирнова
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 А.Н. Быков, Г.Н. Смирнова filed Critical А.Н. Быков
Priority to SU751545A priority Critical patent/SU151025A1/en
Application granted granted Critical
Publication of SU151025A1 publication Critical patent/SU151025A1/en

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Description

Изг.естен способ получени  окрашенного полимера, в частности полиэфира, путем сополимеризации цветного и нецветного компонентов .A synthetic method for producing a colored polymer, in particular a polyester, by copolymerizing the color and non-color components.

Предлагаемый способ получени  полиэтилентерефталатов отличаетс  введением в структуру полиэфира добавки красител  с двум  функциональными группами (гидроксильными и карбоксильными, или теми и другими вместе вз тыми), вход щего в группу флуоресцеина. Красители ввод тс  в реакционную смесь в процессе синтеза полиэфира . Способ расшир ет ассортимент композиций дл  синтеза цветны.х полиэтилентерефталатов. Получение цветных полиэтилентерефталатов провод т в две стадии.The proposed method for the preparation of polyethylene terephthalates is characterized by the introduction into the polyester structure of a dye additive with two functional groups (hydroxyl and carboxyl, or both) taken into the group of fluorescein. The dyes are introduced into the reaction mixture during polyester synthesis. The method expands the assortment of compositions for the synthesis of colored polyethylene terephthalates. The preparation of colored polyethylene terephthalates is carried out in two stages.

В первую стадию осуществл ют процесс переэтерификации диметилтерефталата с этиленгликолем в течение трех часов с постепенным подъемом температуры до 270° по следующему графику: 170° - первые 60 MVM, 180° -30 мин, 210°-30 мин, 235° - 30 мин, 270° - 30 мин. В качестве катализатора примен ют уксуснокислый цинк в количестве 0,1о/о от веса диметилтерефталата.In the first stage, the process of transesterification of dimethyl terephthalate with ethylene glycol is carried out for three hours with a gradual rise in temperature to 270 ° according to the following schedule: 170 ° - the first 60 MVM, 180 ° -30 minutes, 210 ° -30 minutes, 235 ° - 30 minutes, 270 ° - 30 min. Zinc acetate in an amount of 0.1 ° / o by weight of dimethyl terephthalate is used as a catalyst.

Затем создают вакуум до 0,5-1,5 мм рт. ст. и осуществл ют поликондексацию в течение 1,5 - 7 час. Синтез ведут как с пере.мещиванием реакционной массы, так и без цере.мещиваии . Перемешивание способствует получению полимера с более высоким молекул рным весо .м и лучшей пр димостью.Then create a vacuum to 0.5-1.5 mm Hg. Art. and polycondensation is carried out for 1.5-7 hours. Synthesis is carried out both with shifting the reaction mass, and without cerebromatizing. Stirring promotes the production of a polymer with a higher molecular weight and better yield.

В качестве мономеров-красителей примен ют флуоресцеин, эозин и другие красители этого р да в количестве от 0,25 до 1,0о/о вес. Количество введенного красител  определ ет интенсивность окраски полиДГо 151025- 2 -Fluorescein, eosin and other dyes of this range are used in the amount of 0.25 to 1.0 o / o weight. The amount of dye injected determines the color intensity of the polyDEG 151025-2 -

этилентерефталата. Краситель целесообразно вводить перед началом иоликонденсации или в процессе поликонденсации, что приводит к получению равномерно окрашенного продукта.ethylene terephthalate. The dye is advisable to enter before the start of iolikonensatsii or in the process of polycondensation, which results in a uniformly colored product.

Свойства цветных полиэтилеитерефталатов, полученных по предлагаемому способу, б:1изки к свойствам нецветного нолиэтилентерефталата .Properties of colored polyethylene and terephthalate, obtained by the proposed method, b: 1 to the properties of non-colored polyethylene terephthalate.

Предмет изобретени Subject invention

Способ получени  цветных полиэтилентерефталатов поликонденсацией исходных мономеров с применением красителей, отличающийс  тед, что в качестве красителей примен ют красители группы флуоресцеина, которые ввод т непосредственно в реакционную смесь.The method of producing colored polyethylene terephthalates by polycondensation of the initial monomers using dyes, characterized by the use of dyes of the fluorescein group, which are introduced directly into the reaction mixture.

SU751545A 1961-11-09 1961-11-09 The method of obtaining colored polyethylene terephthalate SU151025A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU751545A SU151025A1 (en) 1961-11-09 1961-11-09 The method of obtaining colored polyethylene terephthalate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU751545A SU151025A1 (en) 1961-11-09 1961-11-09 The method of obtaining colored polyethylene terephthalate

Publications (1)

Publication Number Publication Date
SU151025A1 true SU151025A1 (en) 1961-11-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU751545A SU151025A1 (en) 1961-11-09 1961-11-09 The method of obtaining colored polyethylene terephthalate

Country Status (1)

Country Link
SU (1) SU151025A1 (en)

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