RO103572B1 - Compozitie adeziva, pe baza de rasina ureoformaldehidica, cu continut ridicat de formol liber si extract alcalin - Google Patents
Compozitie adeziva, pe baza de rasina ureoformaldehidica, cu continut ridicat de formol liber si extract alcalinInfo
- Publication number
- RO103572B1 RO103572B1 RO140243A RO14024389A RO103572B1 RO 103572 B1 RO103572 B1 RO 103572B1 RO 140243 A RO140243 A RO 140243A RO 14024389 A RO14024389 A RO 14024389A RO 103572 B1 RO103572 B1 RO 103572B1
- Authority
- RO
- Romania
- Prior art keywords
- alkaline extract
- adhesive composition
- formaldehyde resin
- urea
- based adhesive
- Prior art date
Links
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title abstract 4
- 239000000853 adhesive Substances 0.000 title abstract 3
- 230000001070 adhesive effect Effects 0.000 title abstract 3
- 229920001807 Urea-formaldehyde Polymers 0.000 title abstract 2
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 title abstract 2
- 239000000203 mixture Substances 0.000 title abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 239000002023 wood Substances 0.000 abstract 2
- 239000006227 byproduct Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000004848 polyfunctional curative Substances 0.000 abstract 1
- 239000011122 softwood Substances 0.000 abstract 1
Landscapes
- Adhesives Or Adhesive Processes (AREA)
Abstract
Prezenta inventie se refera la o compozitie adeziva, pe baza de rasina ureoformaldehidica, cu continut ridicat de formol liber (maximum 1%) si extract alcalin obtinut din coaja de rasinoase, pentru fabricarea placilor din aschii de lemn. Inventia creeaza posibilitatea valorificarii superioare a masei lemnoase prin utilizarea extractului alcalin, un subprodus obtinut prin tratarea cojii de rasinoase, la cald, cu solutie de hidroxid de sodiu 1%. Extractul alcalin se utilizeaza la prepararea adezivului pentru stratul exterior si a solutiei de întaritor pentru stratul inferior al placii.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO140243A RO103572B1 (ro) | 1989-06-15 | 1989-06-15 | Compozitie adeziva, pe baza de rasina ureoformaldehidica, cu continut ridicat de formol liber si extract alcalin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO140243A RO103572B1 (ro) | 1989-06-15 | 1989-06-15 | Compozitie adeziva, pe baza de rasina ureoformaldehidica, cu continut ridicat de formol liber si extract alcalin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO103572A2 RO103572A2 (en) | 1991-12-02 |
| RO103572B1 true RO103572B1 (ro) | 1992-03-25 |
Family
ID=20124949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO140243A RO103572B1 (ro) | 1989-06-15 | 1989-06-15 | Compozitie adeziva, pe baza de rasina ureoformaldehidica, cu continut ridicat de formol liber si extract alcalin |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO103572B1 (ro) |
-
1989
- 1989-06-15 RO RO140243A patent/RO103572B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO103572A2 (en) | 1991-12-02 |
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