ES447465A1 - Aqueous solutions of etherified melamine formaldehyde resins - Google Patents
Aqueous solutions of etherified melamine formaldehyde resinsInfo
- Publication number
- ES447465A1 ES447465A1 ES447465A ES447465A ES447465A1 ES 447465 A1 ES447465 A1 ES 447465A1 ES 447465 A ES447465 A ES 447465A ES 447465 A ES447465 A ES 447465A ES 447465 A1 ES447465 A1 ES 447465A1
- Authority
- ES
- Spain
- Prior art keywords
- phase
- degrees centigrade
- formaldehyde
- melamine
- temperature
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/24—Coatings containing organic materials
- C03C25/26—Macromolecular compounds or prepolymers
- C03C25/32—Macromolecular compounds or prepolymers obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C03C25/34—Condensation polymers of aldehydes, e.g. with phenols, ureas, melamines, amides or amines
-
- 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
- C08G12/40—Chemically modified polycondensates
- C08G12/42—Chemically modified polycondensates by etherifying
- C08G12/424—Chemically modified polycondensates by etherifying of polycondensates based on heterocyclic compounds
- C08G12/425—Chemically modified polycondensates by etherifying of polycondensates based on heterocyclic compounds based on triazines
- C08G12/427—Melamine
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
- D06M15/423—Amino-aldehyde resins
- D06M15/427—Amino-aldehyde resins modified by alkoxylated compounds or alkylene oxides
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Textile Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
"Procedure for obtaining aqueous solutions of etherified melamino-formaldehyde resins, with a long shelf life and a low proportion of free formaldehyde", characterized in that in a first phase, melamine is reacted with formaldehyde, gradually adding and stirring the melamine under solid form, to a solution obtained by mixing a solution containing thirty to fifty percent, and preferably about thirty-six percent formaldehyde, in an amount corresponding to a formaldehyde/melamine molecular ratio between 5 and 11, preferably between 6.5 and 10; of one or more polyols in an amount corresponding to a polyol-melamine molecular ratio comprised between 3 and 5, preferably between 3.5 and 4.0; of triethanolamine in an amount corresponding to a triethanolamine/melamine molecular ratio, comprised between 0.2 and 0.6, preferably between 0.3 and 0.4, at a temperature between 60 and 70 degrees Celsius, preferably between 63 and 68 degrees Celsius, the pH after the addition of the melamine is between 8.5 and 9.5 and preferably between 8.8 and 9.2, and the reaction is achieved by rapid cooling to a temperature between 20 and 40 degrees centigrade, preferably between 33 and 37 degrees centigrade, when the cloud point occurs between 40 and 65 degrees centigrade, preferably between 45 and 55 degrees centigrade; in a second phase, etherification is carried out by lowering the pH of the reaction mixture resulting from the first phase by gradually adding a pure acid or in concentrated aqueous solution, to a value between 1.5 and 3.0, all while maintaining the temperature from the end of the first phase, and at the end of the etherification reaction, the solution obtained is neutralized by adding a base; in a third phase, the solution obtained at the end of the second phase is matured, keeping it for a period of between two and five hours at a temperature of between 50 and 90 degrees centigrade, preferably between 70 and 85 degrees centigrade; in a fourth phase the proportion of free formaldehyde in the solution obtained at the end of the third phase is reduced to a final proportion in free formaldehyde not exceeding 6 weight percent. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7513569A FR2309575A1 (en) | 1975-04-30 | 1975-04-30 | AQUEOUS SOLUTIONS OF ETHERIFIED MELAMINE-FORMALDEHYDE RESINS WITH A LONG SHELF LIFE AND LOW FREE FORMALDEHYDE CONTENT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES447465A1 true ES447465A1 (en) | 1977-07-01 |
Family
ID=9154670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES447465A Expired ES447465A1 (en) | 1975-04-30 | 1976-04-29 | Aqueous solutions of etherified melamine formaldehyde resins |
Country Status (28)
| Country | Link |
|---|---|
| JP (1) | JPS5853648B2 (en) |
| AT (1) | AT344993B (en) |
| AU (1) | AU501880B2 (en) |
| BE (1) | BE841304A (en) |
| BR (1) | BR7602672A (en) |
| CA (1) | CA1091836A (en) |
| CH (1) | CH603737A5 (en) |
| CS (1) | CS191304B2 (en) |
| DD (1) | DD128380A5 (en) |
| DE (1) | DE2617232C2 (en) |
| ES (1) | ES447465A1 (en) |
| FI (1) | FI62547C (en) |
| FR (1) | FR2309575A1 (en) |
| GB (1) | GB1501534A (en) |
| HU (1) | HU177034B (en) |
| IE (1) | IE43271B1 (en) |
| IT (1) | IT1059948B (en) |
| LU (1) | LU74857A1 (en) |
| MX (1) | MX3319E (en) |
| NL (1) | NL190286C (en) |
| NO (1) | NO142444C (en) |
| NZ (1) | NZ180713A (en) |
| PL (1) | PL105541B1 (en) |
| RO (1) | RO70306A (en) |
| SE (1) | SE419229B (en) |
| TR (1) | TR19067A (en) |
| YU (1) | YU37352B (en) |
| ZA (1) | ZA762575B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2715020C2 (en) * | 1977-04-04 | 1983-04-28 | Cassella Ag, 6000 Frankfurt | Process for the preparation of aqueous melamine / urea resin solutions |
| GB2136008B (en) * | 1983-02-07 | 1986-06-25 | Enigma Nv | Formaldehyde binder |
| GB2170208B (en) * | 1985-01-29 | 1988-06-22 | Enigma Nv | A formaldehyde binder |
| DE19633625A1 (en) * | 1996-08-21 | 1998-02-26 | Basf Ag | Process for the preparation of aqueous concentrated solutions of N-methylol ethers suitable for the finishing of cellulose-containing textile materials |
| CN110042701B (en) * | 2019-03-29 | 2023-09-15 | 广东福美新材料科技有限公司 | Moistureproof flame-retardant impregnated paper and preparation method thereof |
| RU2019134226A (en) * | 2019-10-25 | 2021-04-26 | Общество с ограниченной ответственностью "Комберри" | TRANSPARENT GEL-POLYMER ELECTROLYTES OF INCREASED CONDUCTIVITY BASED ON TRIAZINE COPOLYMERS |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1012319A (en) * | 1962-06-01 | 1965-12-08 | British Industrial Plastics | Water-soluble modified melamine-formaldehyde resins |
| DE2005166C3 (en) * | 1970-02-05 | 1975-05-15 | Chemische Fabrik Pfersee Gmbh, 8900 Augsburg | Process for the production of water-soluble, etherified methylolmelamines |
| GB1317774A (en) * | 1970-06-02 | 1973-05-23 | British Industrial Plastics | Melamine formaldehyde condensation products |
-
1975
- 1975-04-30 FR FR7513569A patent/FR2309575A1/en active Granted
-
1976
- 1976-04-06 GB GB13897/76A patent/GB1501534A/en not_active Expired
- 1976-04-12 IE IE777/76A patent/IE43271B1/en unknown
- 1976-04-20 DE DE2617232A patent/DE2617232C2/en not_active Expired
- 1976-04-23 SE SE7604717A patent/SE419229B/en not_active IP Right Cessation
- 1976-04-26 CA CA251,045A patent/CA1091836A/en not_active Expired
- 1976-04-27 FI FI761168A patent/FI62547C/en not_active IP Right Cessation
- 1976-04-27 TR TR19067A patent/TR19067A/en unknown
- 1976-04-28 NZ NZ180713A patent/NZ180713A/en unknown
- 1976-04-28 RO RO7685931A patent/RO70306A/en unknown
- 1976-04-29 BR BR2672/76A patent/BR7602672A/en unknown
- 1976-04-29 AT AT316676A patent/AT344993B/en not_active IP Right Cessation
- 1976-04-29 AU AU13464/76A patent/AU501880B2/en not_active Expired
- 1976-04-29 BE BE166595A patent/BE841304A/en not_active IP Right Cessation
- 1976-04-29 LU LU74857A patent/LU74857A1/xx unknown
- 1976-04-29 MX MX000201U patent/MX3319E/en unknown
- 1976-04-29 YU YU1084/76A patent/YU37352B/en unknown
- 1976-04-29 CH CH540376A patent/CH603737A5/xx not_active IP Right Cessation
- 1976-04-29 ZA ZA762575A patent/ZA762575B/en unknown
- 1976-04-29 NL NLAANVRAGE7604581,A patent/NL190286C/en not_active IP Right Cessation
- 1976-04-29 DD DD7600192595A patent/DD128380A5/en unknown
- 1976-04-29 IT IT68046/76A patent/IT1059948B/en active
- 1976-04-29 HU HU76SA2917A patent/HU177034B/en unknown
- 1976-04-29 ES ES447465A patent/ES447465A1/en not_active Expired
- 1976-04-30 JP JP51048690A patent/JPS5853648B2/en not_active Expired
- 1976-04-30 PL PL1976189203A patent/PL105541B1/en unknown
- 1976-04-30 CS CS762877A patent/CS191304B2/en unknown
- 1976-04-30 NO NO761499A patent/NO142444C/en unknown
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