CH614454A5 - Process for the preparation of a solution based on urea/formaldehyde resin for the manufacture of adhesives and solution obtained by making use of this process - Google Patents
Process for the preparation of a solution based on urea/formaldehyde resin for the manufacture of adhesives and solution obtained by making use of this processInfo
- Publication number
- CH614454A5 CH614454A5 CH582476A CH582476A CH614454A5 CH 614454 A5 CH614454 A5 CH 614454A5 CH 582476 A CH582476 A CH 582476A CH 582476 A CH582476 A CH 582476A CH 614454 A5 CH614454 A5 CH 614454A5
- Authority
- CH
- Switzerland
- Prior art keywords
- solution
- stage
- urea
- manufacture
- formaldehyde
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/04—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
- C08G12/10—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with acyclic compounds having the moiety X=C(—N<)2 in which X is O, S or —N
- C08G12/12—Ureas; Thioureas
Abstract
Process for the manufacture of a solution based on urea/formaldehyde resins for the manufacture of adhesives, consisting in: a) catalytically oxidising methanol by means of air; b) condensing the gases originating from the catalytic oxidation of methanol; c) separating the condensed products from the uncondensed gases; d) cooling the uncondensed gases and scrubbing them in a scrubbing column by means of a solution of polymerised, cold formaldehyde; e) distilling the solution obtained in stage c); f) distilling the solution obtained in stage d); g) combining a proportion of the formaldehyde solution in stage f) with the product obtained in stage e), and h) mixing the formaldehyde solution obtained in stage e) with urea. The process makes it possible to obtain solutions based on urea/formaldehyde resins which have, for example, a solids content of 65 % without it being necessary to subject the solutions obtained to a final distillation stage. <IMAGE>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7514794A FR2311048A1 (en) | 1975-05-13 | 1975-05-13 | PROCESS FOR PREPARATION OF UREE-FORMALDEHYDE GLUES OR RESINS AND PRODUCTS OBTAINED BY IMPLEMENTATION OF THIS PROCESS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH614454A5 true CH614454A5 (en) | 1979-11-30 |
Family
ID=9155131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH582476A CH614454A5 (en) | 1975-05-13 | 1976-05-10 | Process for the preparation of a solution based on urea/formaldehyde resin for the manufacture of adhesives and solution obtained by making use of this process |
Country Status (18)
| Country | Link |
|---|---|
| JP (1) | JPS5856368B2 (en) |
| AR (1) | AR213286A1 (en) |
| AT (1) | AT350695B (en) |
| AU (1) | AU503309B2 (en) |
| BE (1) | BE841663A (en) |
| BR (1) | BR7602981A (en) |
| CA (1) | CA1070889A (en) |
| CH (1) | CH614454A5 (en) |
| DE (1) | DE2606269C3 (en) |
| ES (1) | ES447890A1 (en) |
| FR (1) | FR2311048A1 (en) |
| GB (1) | GB1536011A (en) |
| IT (1) | IT1065986B (en) |
| MX (1) | MX144145A (en) |
| NL (1) | NL165726C (en) |
| SE (1) | SE430897B (en) |
| SU (1) | SU940642A3 (en) |
| ZA (1) | ZA762576B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2010959A6 (en) * | 1989-05-10 | 1989-12-01 | Patentes Novedades Sa | Method for producing stabilized solutions of formaldehyde with methanol. |
| ES2171152B1 (en) * | 2001-02-16 | 2003-10-01 | Patentes Novedades Sa | PROCEDURE FOR SEPARATION OF A WATERY MIXTURE OF TRIOXAN AND FORMALDEHYDE AND CORRESPONDING APPLICATIONS. |
| GB201502893D0 (en) * | 2015-02-20 | 2015-04-08 | Johnson Matthey Plc | Process |
| GB201502894D0 (en) | 2015-02-20 | 2015-04-08 | Johnson Matthey Plc | Process |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US23174A (en) * | 1859-03-08 | Improvement in corn-harvesters |
-
1975
- 1975-05-13 FR FR7514794A patent/FR2311048A1/en active Granted
-
1976
- 1976-02-16 NL NL7601572.A patent/NL165726C/en not_active IP Right Cessation
- 1976-02-17 DE DE2606269A patent/DE2606269C3/en not_active Expired
- 1976-02-18 GB GB6356/76A patent/GB1536011A/en not_active Expired
- 1976-04-27 AU AU13343/76A patent/AU503309B2/en not_active Expired
- 1976-04-29 ZA ZA762576A patent/ZA762576B/en unknown
- 1976-05-03 CA CA251,702A patent/CA1070889A/en not_active Expired
- 1976-05-06 MX MX164574A patent/MX144145A/en unknown
- 1976-05-07 SU SU762356242A patent/SU940642A3/en active
- 1976-05-10 BE BE166906A patent/BE841663A/en not_active IP Right Cessation
- 1976-05-10 CH CH582476A patent/CH614454A5/en not_active IP Right Cessation
- 1976-05-12 IT IT49431/76A patent/IT1065986B/en active
- 1976-05-12 SE SE7605413A patent/SE430897B/en not_active IP Right Cessation
- 1976-05-12 AT AT347676A patent/AT350695B/en not_active IP Right Cessation
- 1976-05-12 JP JP51053393A patent/JPS5856368B2/en not_active Expired
- 1976-05-12 BR BR7602981A patent/BR7602981A/en unknown
- 1976-05-13 AR AR263273A patent/AR213286A1/en active
- 1976-05-13 ES ES447890A patent/ES447890A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL165726B (en) | 1980-12-15 |
| BR7602981A (en) | 1977-06-07 |
| FR2311048B1 (en) | 1979-04-27 |
| NL7601572A (en) | 1976-11-16 |
| GB1536011A (en) | 1978-12-13 |
| DE2606269A1 (en) | 1976-11-18 |
| SE430897B (en) | 1983-12-19 |
| MX144145A (en) | 1981-09-02 |
| ES447890A1 (en) | 1977-07-16 |
| AU1334376A (en) | 1977-11-03 |
| CA1070889A (en) | 1980-01-29 |
| JPS51139895A (en) | 1976-12-02 |
| DE2606269C3 (en) | 1982-09-02 |
| NL165726C (en) | 1981-05-15 |
| BE841663A (en) | 1976-11-10 |
| AU503309B2 (en) | 1979-08-30 |
| AT350695B (en) | 1979-06-11 |
| ATA347676A (en) | 1978-11-15 |
| FR2311048A1 (en) | 1976-12-10 |
| SE7605413L (en) | 1976-11-14 |
| IT1065986B (en) | 1985-03-04 |
| DE2606269B2 (en) | 1980-12-11 |
| SU940642A3 (en) | 1982-06-30 |
| AR213286A1 (en) | 1979-01-15 |
| JPS5856368B2 (en) | 1983-12-14 |
| ZA762576B (en) | 1977-04-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |