RO100883B1 - Procedeu de obtinere a unor rasini fenolformaldehidice - Google Patents

Procedeu de obtinere a unor rasini fenolformaldehidice

Info

Publication number
RO100883B1
RO100883B1 RO132810A RO13281088A RO100883B1 RO 100883 B1 RO100883 B1 RO 100883B1 RO 132810 A RO132810 A RO 132810A RO 13281088 A RO13281088 A RO 13281088A RO 100883 B1 RO100883 B1 RO 100883B1
Authority
RO
Romania
Prior art keywords
formaldehyde
phenol
production method
formaldehyde resin
resin production
Prior art date
Application number
RO132810A
Other languages
English (en)
Other versions
RO100883A2 (ro
Inventor
Constantin Robu
Tamara Pintilie
Aneta Pletea
Alexandru Iordache
Gheorghe Petre
Octavia Lembrau
Elena Sames
Vasile Pilca
Original Assignee
Centrul De Cercetari Pentru Protectii Anticorosive
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 Centrul De Cercetari Pentru Protectii Anticorosive filed Critical Centrul De Cercetari Pentru Protectii Anticorosive
Priority to RO1988132810A priority Critical patent/RO100883A2/ro
Publication of RO100883B1 publication Critical patent/RO100883B1/ro
Publication of RO100883A2 publication Critical patent/RO100883A2/ro

Links

Landscapes

  • Phenolic Resins Or Amino Resins (AREA)

Abstract

Inventia se refera la un procedeu de obtinere a unor rasini fenolformaldehidice prin condensarea componentei fenolice cu formaldehida în absenta apei, prin utilizarea para-formaldehidei solide 75...98%, fara faza de depolimerizare, la raporturi molare de 1/1:3, la pH alcalin = 7,9, reglat cu catalizatori alcalini, la 40...120 degree C, pâna la legarea a minimum 95% din formaldehida, urmata de prelucrare, în vederea eliminarii substantelor volatile.
RO1988132810A 1988-03-30 1988-03-30 Procedeu de obtinere a unor rasini fenolformaldehidice RO100883A2 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO1988132810A RO100883A2 (ro) 1988-03-30 1988-03-30 Procedeu de obtinere a unor rasini fenolformaldehidice

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO1988132810A RO100883A2 (ro) 1988-03-30 1988-03-30 Procedeu de obtinere a unor rasini fenolformaldehidice

Publications (2)

Publication Number Publication Date
RO100883B1 true RO100883B1 (ro) 1991-03-29
RO100883A2 RO100883A2 (ro) 1991-10-29

Family

ID=20121379

Family Applications (1)

Application Number Title Priority Date Filing Date
RO1988132810A RO100883A2 (ro) 1988-03-30 1988-03-30 Procedeu de obtinere a unor rasini fenolformaldehidice

Country Status (1)

Country Link
RO (1) RO100883A2 (ro)

Also Published As

Publication number Publication date
RO100883A2 (ro) 1991-10-29

Similar Documents

Publication Publication Date Title
SE8406166D0 (sv) A process for preparing a urea-formaldehyde resin having a very low mole ratio of formaldehyde to urea
DK40981A (da) Fremgangsmaade til fremstilling af vandoploeselige nitrogenholdige kondensationsprodukter til anvendelse ved papirfremstilling
SE7707242L (sv) Sett for framstellning av vattenhaltiga formaldehydhartslosningar
EP0277926A3 (en) A method for the production of amino resin
RO100883B1 (ro) Procedeu de obtinere a unor rasini fenolformaldehidice
ES479839A1 (es) Procedimiento de tratamiento de aguas brutas o aguas resi- duales.
ES8605544A1 (es) Un procedimiento de preparar una resina de urea-formaldehidosolida.
ES2000588A6 (es) Un procedimiento de fabricacion de una resina de urea-formaldehido solida
ES8306165A1 (es) Procedimiento para la preparacion de resinas sinteticas
CA2052798A1 (en) Phenolic resins
KR940007112A (ko) 페놀계 수지 조성물
DE3568780D1 (en) Process for the continuous preparation of trioxane
ES482972A1 (es) Un procedimiento para preparar un adhesivo para madera
SE9703400L (sv) Förfarande för framställning av fenol-formaldehydharts samt användning därav för impregnering av papper
RO100884B1 (ro) Procedeu de obtinere a unor rasini aminoformaldehidice pentru lacuri
SU685634A1 (ru) Способ очистки надсмольных вод производства фенолформальдегидных смол
JPS54129087A (en) Production of phenolic resin
RO86610B1 (ro) PROCEDEU DE OBTINERE A UNEI RASINI ADEZIVE PENTRU îNCLEIEREA LEMNULUI STRATIFICAT
RO97848B1 (ro) Procedeu de obtinere a unei rasini lignofenolformaldehidice, utilizabile ca liant pentru amestecuri de formare
DE3170307D1 (en) Method of preparing aminoplast resins
JPS536397A (en) Preparation of resol-type phenolic resins for decorative laminates
GR3006333T3 (ro)
EP0273794A3 (en) Process for producing aminoplast binders
ES447471A1 (es) Procedimiento de fabricacion de resinas fenolicas.
RO93137B1 (ro) PROCEDEU PENTRU OBTINEREA UNOR RASINI EPOXIDOFENOLFORMALDEHIDICE, UTILIZABILE îN ELECTROTEHNICA