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RU97111537A - METHOD FOR PRODUCING CARBAMIDE FORMALDEHYDE RESIN FOR PRODUCING FOAM PLASTICS - Google Patents

METHOD FOR PRODUCING CARBAMIDE FORMALDEHYDE RESIN FOR PRODUCING FOAM PLASTICS

Info

Publication number
RU97111537A
RU97111537A RU97111537/04A RU97111537A RU97111537A RU 97111537 A RU97111537 A RU 97111537A RU 97111537/04 A RU97111537/04 A RU 97111537/04A RU 97111537 A RU97111537 A RU 97111537A RU 97111537 A RU97111537 A RU 97111537A
Authority
RU
Russia
Prior art keywords
producing
urea
formaldehyde resin
condensation
formaldehyde
Prior art date
Application number
RU97111537/04A
Other languages
Russian (ru)
Other versions
RU2114870C1 (en
Inventor
В.П. Герасименя
Л.А. Соболев
В.Н. Овчаров
Б.С. Глебычев
В.С. Рябев
О.Ф. Полещук
К.З. Гумаргалиева
А.Г. Соловьев
Д.Г. Анисимов
Original Assignee
В.П. Герасименя
Л.А. Соболев
Filing date
Publication date
Application filed by В.П. Герасименя, Л.А. Соболев filed Critical В.П. Герасименя
Priority to RU97111537/04A priority Critical patent/RU2114870C1/en
Priority claimed from RU97111537/04A external-priority patent/RU2114870C1/en
Application granted granted Critical
Publication of RU2114870C1 publication Critical patent/RU2114870C1/en
Publication of RU97111537A publication Critical patent/RU97111537A/en

Links

Claims (2)

1. Способ получения карбамидоформальдегидной смолы для производства пенопласта, включающий нейтрализацию водного раствора формальдегида, конденсацию карбамида с формальдегидом в среде с переменной кислотностью при нагревании, введение модифицирующей добавки, вакуумную сушку и доконденсацию, отличающийся тем, что модифицирующую добавку вводят в виде водного раствора гидроксилсодержащего полимера в количестве 0,5 - 3,5 мас. ч. и многоатомного спирта в количестве 1,5 - 2,5 мас. ч. на 100 мас. ч. карбамида, доконденсацию осуществляют постадийно до конечного мольного соотношения карбамид : формальдегид : аммиак 1: 1,15- 1,45: 0,1 - 0,15.1. A method of producing a urea-formaldehyde resin for the production of foam, including the neutralization of an aqueous solution of formaldehyde, the condensation of urea with formaldehyde in a medium with variable acidity when heated, the introduction of a modifying additive, vacuum drying and post-condensation, characterized in that the modifying additive is introduced in the form of an aqueous solution of a hydroxyl-containing polymer in an amount of 0.5 to 3.5 wt. hours and polyhydric alcohol in an amount of 1.5 to 2.5 wt. hours per 100 wt. including urea, pre-condensation is carried out in stages to a final molar ratio of urea: formaldehyde: ammonia 1: 1.15-1.45: 0.1-1.15. 2. Способ получения карбамидоформальдегидной смолы для производства пенопласта по п. 1, отличающийся тем, что доконденсацию проводят за 3 и более стадии. 2. A method of producing a urea-formaldehyde resin for the production of foam according to claim 1, characterized in that the post-condensation is carried out in 3 or more stages.
RU97111537/04A 1997-07-17 1997-07-17 Urea-formaldehyde resin production process RU2114870C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU97111537/04A RU2114870C1 (en) 1997-07-17 1997-07-17 Urea-formaldehyde resin production process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU97111537/04A RU2114870C1 (en) 1997-07-17 1997-07-17 Urea-formaldehyde resin production process

Publications (2)

Publication Number Publication Date
RU2114870C1 RU2114870C1 (en) 1998-07-10
RU97111537A true RU97111537A (en) 1998-11-20

Family

ID=20195054

Family Applications (1)

Application Number Title Priority Date Filing Date
RU97111537/04A RU2114870C1 (en) 1997-07-17 1997-07-17 Urea-formaldehyde resin production process

Country Status (1)

Country Link
RU (1) RU2114870C1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2244724C2 (en) * 2002-09-16 2005-01-20 ЗАО "Тюменский завод пластмасс" Urea-formaldehyde resin production process
RU2233850C1 (en) * 2003-01-29 2004-08-10 Герасименя Валерий Павлович Method for preparing carbamide-formaldehyde resin
RU2277518C2 (en) * 2004-04-28 2006-06-10 Валерий Павлович Герасименя Heat-insulating polymeric material and method for its preparing
RU2413737C2 (en) * 2008-04-30 2011-03-10 Лариса Николаевна Курина Method of producing formaldehyde-containing resin with low emission of formaldehyde and functional materials based on said resin
RU2447092C1 (en) * 2010-08-09 2012-04-10 Открытое акционерное общество "МЕТАФРАКС" Method of producing urea formaldehyde resin
CN102041890A (en) * 2010-11-12 2011-05-04 湖南康派木业有限公司 Method for manufacturing composite floor with low formaldehyde emission through heat treatment

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2026309C1 (en) * 1990-12-13 1995-01-09 Акционерное общество открытого типа "Научно-исследовательский институт пластических масс им.Петрова" Process for preparing modified aminoformaldehyde resins
RU2059663C1 (en) * 1992-08-25 1996-05-10 Акционерное общество "Акрон" Method for production of carbamide-formaldehyde resin
RU2051926C1 (en) * 1993-11-23 1996-01-10 Акционерное общество "Уралхимпласт" Method for production of carbamide phenol-formaldehyde resin

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