RO85616B1 - Procedeu pentru obtinerea unor rasini ureoformaldehidice modificate - Google Patents
Procedeu pentru obtinerea unor rasini ureoformaldehidice modificateInfo
- Publication number
- RO85616B1 RO85616B1 RO107901A RO10790182A RO85616B1 RO 85616 B1 RO85616 B1 RO 85616B1 RO 107901 A RO107901 A RO 107901A RO 10790182 A RO10790182 A RO 10790182A RO 85616 B1 RO85616 B1 RO 85616B1
- Authority
- RO
- Romania
- Prior art keywords
- resins
- ureoformaldehyde
- preparing modified
- condensation
- temperature
- Prior art date
Links
- 229920005989 resin Polymers 0.000 title abstract 2
- 239000011347 resin Substances 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 1
- 229920001807 Urea-formaldehyde Polymers 0.000 abstract 1
- 239000004202 carbamide Substances 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 239000007859 condensation product Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical class O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 abstract 1
- 229920005552 sodium lignosulfonate Polymers 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000002023 wood Substances 0.000 abstract 1
Landscapes
- Phenolic Resins Or Amino Resins (AREA)
Abstract
Inventia se refera la un procedeu pentru obtinerea unor rasini ureoformaldehidice modificate, utilizabile în industria lemnului, conform caruia se efectueaza condensarea formaldehidei cu uree la un raport molar 1: 0,8, în doua etape la temperatura de 92...94 degree C, apoi produsul de condensare se aduce la pH 7,5 se introduce lignosulfonat de sodiu eventual conditionat cu insectofungicide, în proportie de 10% în greutate raportat la rasina condensarea continuînd înca 10 min la aceeasi temperatura dupa care în final se raceste si se evapora apa pîna la obtinerea vîscozitatii dorite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO107901A RO85616B1 (ro) | 1982-06-17 | 1982-06-17 | Procedeu pentru obtinerea unor rasini ureoformaldehidice modificate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO107901A RO85616B1 (ro) | 1982-06-17 | 1982-06-17 | Procedeu pentru obtinerea unor rasini ureoformaldehidice modificate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO85616A2 RO85616A2 (ro) | 1984-10-31 |
| RO85616B1 true RO85616B1 (ro) | 1984-11-30 |
Family
ID=20111715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO107901A RO85616B1 (ro) | 1982-06-17 | 1982-06-17 | Procedeu pentru obtinerea unor rasini ureoformaldehidice modificate |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO85616B1 (ro) |
-
1982
- 1982-06-17 RO RO107901A patent/RO85616B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO85616A2 (ro) | 1984-10-31 |
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 | |
| FI841767A0 (fi) | Foerfarande foer framstaellning av fuktbestaendiga pulverformiga ammoniumfosfater. | |
| NO793451L (no) | Sporeelementgjoedningsmiddelpastaer, fremgangsmaate til deres fremstilling og deres anvendelse til plantegjoedning | |
| SE7707242L (sv) | Sett for framstellning av vattenhaltiga formaldehydhartslosningar | |
| BR8105687A (pt) | Processo para reducao das tendecias a aglutinacao e ao empoeiramento de granulos de ureia, processo para a preparacao de granulos de ureia, e granulos de ureia assim obtidos | |
| ATE50582T1 (de) | Verfahren zur herstellung von glyphosat und glyphosatderivaten. | |
| HU910536D0 (en) | Process for producing condensed products of naphtaline-sulfonic acid and formaldehyde having low concentration of free formaldehyde | |
| RO85616B1 (ro) | Procedeu pentru obtinerea unor rasini ureoformaldehidice modificate | |
| SE8500810L (sv) | Hartsframstellning | |
| DK548879A (da) | Fremgangsmaade til behandling af raavand og spildevand | |
| FR2558839B1 (fr) | Procede de fabrication de resines aminoplastes | |
| ES406073A1 (es) | Procedimiento para la obtencion de resinas aminoplastos. | |
| FR2270221A1 (ro) | ||
| SE8303157D0 (sv) | Forfarande for framstellning av utsidorna hos en skida | |
| ES453643A1 (es) | Procedimiento de preparacion de una leche vegetal concetraday azucarada. | |
| MY102458A (en) | A process for preparing a urea-formaldehyde resin having a very low mole ratio of formaldehyde to urea. | |
| FR2578257B1 (fr) | Procede de fabrication de colles a bois. | |
| NO803861L (no) | Fremgangsmaate for fremstilling av blandingskondensater av fenol og melamin | |
| DE3170153D1 (en) | Agent for the modification of aminoplast resins and process for its manufacture | |
| RO84742B1 (ro) | Procedeu de obtinere a unor schimbatori de ioni acizi si bazici derivati de la amilopectina | |
| GB927280A (en) | Process for the manufacture of modified cation active urea formaldehyde resins | |
| RO86120B (ro) | Procedeu pentru obtinerea unui condensat ureoformaldehidic, utilizabil la prepararea spumelor solide | |
| CS274752B2 (en) | Admixture for concrete mixture treatment by means of warming through | |
| RO84113B1 (ro) | PROCEDEU PENTRU PREPARAREA UNUI PRECONDENSAT UREEO-FORMALDEHIDEC CU CONTINUT RIDICAT îN SUBSTANTA SOLIDA PENTRU SEMIFABRICATE DIN LEMN | |
| RO87882B1 (ro) | Procedeu pentru obtinerea unor rasini fenolformaldehidil flexibilizate utilizabile la fabricarea materialelor stratificate |