SU467914A1 - Method for preparing modified resorcinol formaldehyde resins - Google Patents

Method for preparing modified resorcinol formaldehyde resins

Info

Publication number
SU467914A1
SU467914A1 SU1918074A SU1918074A SU467914A1 SU 467914 A1 SU467914 A1 SU 467914A1 SU 1918074 A SU1918074 A SU 1918074A SU 1918074 A SU1918074 A SU 1918074A SU 467914 A1 SU467914 A1 SU 467914A1
Authority
SU
USSR - Soviet Union
Prior art keywords
formaldehyde resins
preparing modified
resorcinol formaldehyde
modified resorcinol
resins
Prior art date
Application number
SU1918074A
Other languages
Russian (ru)
Inventor
Анатолий Семенович Фрейдин
Шрага-Гога Мордухасович Клаузнер
Альбертина Борисовна Шолохова
Вера Константиновна Ващенко
Любовь Михайловна Ставицкая
Алла Евстигнеевна Гриб
Кием Туанович Вуба
Людмила Александровна Некрасова
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 SU1918074A priority Critical patent/SU467914A1/en
Application granted granted Critical
Publication of SU467914A1 publication Critical patent/SU467914A1/en

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  • Phenolic Resins Or Amino Resins (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Description

(54) СПОСОБ ПОЛУЧЕНИЯ МОДИФИЦИРОВАННЫХ рЕЗОРЦИНО-ФОРМАЛЬДЕГИДНЫХ СМОЛ(54) METHOD FOR OBTAINING MODIFIED RESORTS-FORMALDEHYDE RESINS

22

и продолжают конденсацию при рН среды j 8,3 в течение Зб мин. Полученный готовый продукт охлаждают до 2О°С и сливают в тару.and continue to condense at a pH of j of 8.3 for 3 min. The resulting finished product is cooled to 2 ° C and poured into the container.

Сравнительна  характеристика клеев, полученных на основе модифицированной и немодифицированной смол приведена в таблице .Comparative characteristics of adhesives obtained on the basis of modified and unmodified resins are given in the table.

Прочность клеевого соединени ,Adhesive strength,

, 2, 2

кгс/см :kgf / cm:

дуб-дубoak-oak

сосна-сосна древесина-сибоцементpine-pine wood sibocement

Водостойкость по ГОСТ 17ОО5-71Water resistance according to GOST 17OO5-71

Врем  отверждени  до достижени  указанной прочности, минCuring time to achieve the specified strength, min

Удаление летучих за сутки, % Внутренние напр жени , кгс/смRemoval of volatile per day,% Internal stresses, kgf / cm

Усадочные напр жени  кле , полученного на основе модифицированной смолы, в среднем в два раза ниже, чем кле , полученного на основе немодифицированной смолы.The shrinkage stress of an adhesive made from a modified resin is, on average, two times lower than that obtained from an unmodified resin.

Предмет изобретени Subject invention

Снсюоб получени  модифицированных ре )С;|лтио||)ормальдегидныхсмол путем введё в них производных неллюлозы в вод98/84-116 37/21. 45The synthesis of modified re) C; | ltio ||) ormaldehyde resins by introducing them into the water 98 / 84-116 37/21. 45

66/64-7166 / 64-71

24 18 4О24 18 4О

ных растворах, о т л и ч а ю ш и и с   30 тем, что, с целью обеспечени  раБно.ер1юй скорости удалени  летучих, снижени  BOJJKчины внутренних напр жений н усадки при отверждении смол, производные пеллюпозы, например, метил-этил-или карбоксиметил35 целлюлозу, в виде водно1 о . ра ввод т в начальные продукты конденсации резорцинов с формальдегидом непос;|.)цд-. сгвенно в процессе получени  смолы в ко™ личестве 0,15-3 вес. ч. на ЮО вес. ч. 40 резорцина.solutions, in order to ensure the effective removal rate of volatiles, to reduce the internal stresses and shrinkage during curing of the resins, pellulose derivatives, for example, methyl ethyl or carboxymethyl35 cellulose, in the form of a water o. ra are introduced into the initial condensation products of resorcinol with formaldehyde nepos; |.) cd-. in the process of obtaining the resin in a quantity of 0.15-3 wt. h on uo weight. h. 40 resorcinol.

SU1918074A 1973-05-07 1973-05-07 Method for preparing modified resorcinol formaldehyde resins SU467914A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1918074A SU467914A1 (en) 1973-05-07 1973-05-07 Method for preparing modified resorcinol formaldehyde resins

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1918074A SU467914A1 (en) 1973-05-07 1973-05-07 Method for preparing modified resorcinol formaldehyde resins

Publications (1)

Publication Number Publication Date
SU467914A1 true SU467914A1 (en) 1975-04-25

Family

ID=20552500

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1918074A SU467914A1 (en) 1973-05-07 1973-05-07 Method for preparing modified resorcinol formaldehyde resins

Country Status (1)

Country Link
SU (1) SU467914A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0247975A2 (en) * 1986-03-19 1987-12-02 Ente per le nuove tecnologie, l'energia e l'ambiente (ENEA) A polymer support for topo-chemical reactions; a process for its preparation, the support produced and its application

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0247975A2 (en) * 1986-03-19 1987-12-02 Ente per le nuove tecnologie, l'energia e l'ambiente (ENEA) A polymer support for topo-chemical reactions; a process for its preparation, the support produced and its application

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