ATE447550T1 - Verfahren zur herstellung einer harnstoff und formaldehyd enthaltenden wässrigen lösung - Google Patents
Verfahren zur herstellung einer harnstoff und formaldehyd enthaltenden wässrigen lösungInfo
- Publication number
- ATE447550T1 ATE447550T1 AT04726679T AT04726679T ATE447550T1 AT E447550 T1 ATE447550 T1 AT E447550T1 AT 04726679 T AT04726679 T AT 04726679T AT 04726679 T AT04726679 T AT 04726679T AT E447550 T1 ATE447550 T1 AT E447550T1
- Authority
- AT
- Austria
- Prior art keywords
- formaldehyde
- aqueous solution
- producing
- solution containing
- urea
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
- C07C273/025—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds of solutions of urea and formaldehyde
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C275/00—Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C275/02—Salts; Complexes; Addition compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Phenolic Resins Or Amino Resins (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1023303A NL1023303C2 (nl) | 2003-04-29 | 2003-04-29 | Werkwijze voor de bereiding van een ureum- en formaldehydebevattende waterige oplossing. |
PCT/NL2004/000235 WO2004096758A1 (en) | 2003-04-29 | 2004-04-08 | Process for the preparation of a urea and formaldehyde-containting aqueous solution |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE447550T1 true ATE447550T1 (de) | 2009-11-15 |
Family
ID=33411894
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT04726679T ATE447550T1 (de) | 2003-04-29 | 2004-04-08 | Verfahren zur herstellung einer harnstoff und formaldehyd enthaltenden wässrigen lösung |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1620393B1 (de) |
AT (1) | ATE447550T1 (de) |
DE (1) | DE602004023928D1 (de) |
NL (1) | NL1023303C2 (de) |
PL (1) | PL1620393T3 (de) |
WO (1) | WO2004096758A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1027314C2 (nl) * | 2004-10-22 | 2006-04-25 | Dsm Ip Assets Bv | Werkwijze voor de produktie van een melamine en aldehyde bevattende waterige stroom. |
GB201502893D0 (en) | 2015-02-20 | 2015-04-08 | Johnson Matthey Plc | Process |
GB201502894D0 (en) | 2015-02-20 | 2015-04-08 | Johnson Matthey Plc | Process |
GB201522396D0 (en) * | 2015-12-18 | 2016-02-03 | Johnson Matthey Plc | Process |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3067177A (en) * | 1957-10-30 | 1962-12-04 | Montedison Spa | Process for producing concentrated urea-formaldehyde solutions by absorbing gaseous formaldehyde in aqueous urea solutions |
FR1542109A (fr) * | 1966-10-31 | 1968-10-11 | Allied Chem | Procédé de préparation de concentrés urée-formaldéhyde |
JPS5573651A (en) * | 1978-11-30 | 1980-06-03 | Toyo Eng Corp | Preparation of urea |
NL1017990C2 (nl) * | 2001-05-03 | 2002-11-05 | Dsm Nv | Werkwijze voor de bereiding van ureum. |
-
2003
- 2003-04-29 NL NL1023303A patent/NL1023303C2/nl not_active IP Right Cessation
-
2004
- 2004-04-08 AT AT04726679T patent/ATE447550T1/de not_active IP Right Cessation
- 2004-04-08 EP EP04726679A patent/EP1620393B1/de not_active Expired - Lifetime
- 2004-04-08 PL PL04726679T patent/PL1620393T3/pl unknown
- 2004-04-08 WO PCT/NL2004/000235 patent/WO2004096758A1/en active Application Filing
- 2004-04-08 DE DE602004023928T patent/DE602004023928D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1620393B1 (de) | 2009-11-04 |
PL1620393T3 (pl) | 2010-04-30 |
DE602004023928D1 (de) | 2009-12-17 |
WO2004096758A1 (en) | 2004-11-11 |
NL1023303C2 (nl) | 2004-11-01 |
EP1620393A1 (de) | 2006-02-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |