MX3319E - IMPROVED PROCEDURE FOR THE PREPARATION OF AN ETERIFIED MELAMINE / FORMALDEHYDE SOLUTION WITH LOW CONTENT OF FREE FORMALDEHYDE - Google Patents
IMPROVED PROCEDURE FOR THE PREPARATION OF AN ETERIFIED MELAMINE / FORMALDEHYDE SOLUTION WITH LOW CONTENT OF FREE FORMALDEHYDEInfo
- Publication number
- MX3319E MX3319E MX000201U MX20176U MX3319E MX 3319 E MX3319 E MX 3319E MX 000201 U MX000201 U MX 000201U MX 20176 U MX20176 U MX 20176U MX 3319 E MX3319 E MX 3319E
- Authority
- MX
- Mexico
- Prior art keywords
- melamine
- formaldehyde
- solution
- preparation
- low content
- Prior art date
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)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Textile Engineering (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
La presente invención se refiere a procedimiento mejorado para la preparación de una solución de melamina/formaldehído eterificada con bajo contenido de formaldehído libre, mediante condensación en solución alcalina de formaldehído y de melamina seguida de una eterificación, caracterizado en que, en una primera fase se hace reaccionar la melamina con el formaldehído agregándole radualmente y agitando la melamina bajo forma sólida a una solución que se obtiene por mezcla de: una solución que contiene de 30 a 50 por ciento y de preferencia 36 por ciento aproximadamente de formaldehído, en una cantidad correspondiente a una relación molar formaldehído/melamina comprendida entre 5 y 11, de preferencia entre 6.5 y 10; uno o varios polioles en una cantidad que corresponde a una relación molar poli/melamina comprendida entre 3 y 5, de preferencia entre 3.5 y 4.0; trietanolamina en una cantidad que corresponde a una relación molar trietanolamina/melamina comprendida entre 0.2 y 0.6, de preferencia entre 0.3 y 0.4, a una temperatura comprendida entre 60 y 70°C, de preferencia entre 63 y 68°C, estando comprendido el pH, despues de la adición de la melamina, entre 8.5 y 9.5 y de preferencia entre 8.8 y 9.2, y separar la reacción mediante enfriamiento rápido a una temperatura comprendida entre 20 y 40°C, de preferencia entre 33 y 37°C.The present invention relates to an improved process for the preparation of an etherified melamine / formaldehyde solution with a low content of free formaldehyde, by condensation in alkaline formaldehyde and melamine solution followed by etherification, characterized in that, in a first phase, reacts melamine with formaldehyde by gradually adding and stirring melamine in solid form to a solution which is obtained by mixing: a solution containing 30 to 50 percent and preferably about 36 percent formaldehyde, in a corresponding amount at a formaldehyde / melamine molar ratio of between 5 and 11, preferably between 6.5 and 10; one or more polyols in an amount corresponding to a poly / melamine molar ratio comprised between 3 and 5, preferably between 3.5 and 4.0; triethanolamine in an amount corresponding to a triethanolamine / melamine molar ratio between 0.2 and 0.6, preferably between 0.3 and 0.4, at a temperature between 60 and 70 ° C, preferably between 63 and 68 ° C, with the pH being , after the addition of the melamine, between 8.5 and 9.5 and preferably between 8.8 and 9.2, and separate the reaction by rapid cooling to a temperature between 20 and 40 ° C, preferably between 33 and 37 ° C.
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 |
|---|---|
| MX3319E true MX3319E (en) | 1980-09-22 |
Family
ID=9154670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX000201U MX3319E (en) | 1975-04-30 | 1976-04-29 | IMPROVED PROCEDURE FOR THE PREPARATION OF AN ETERIFIED MELAMINE / FORMALDEHYDE SOLUTION WITH LOW CONTENT OF FREE FORMALDEHYDE |
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 |
| NZ206859A (en) * | 1983-02-07 | 1986-09-10 | Enigma Nv | Formaldehyde binder for boards prepared from lignocellulosic materials |
| 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 TR TR19067A patent/TR19067A/en unknown
- 1976-04-27 FI FI761168A patent/FI62547C/en not_active IP Right Cessation
- 1976-04-28 RO RO7685931A patent/RO70306A/en unknown
- 1976-04-28 NZ NZ180713A patent/NZ180713A/en unknown
- 1976-04-29 ES ES447465A patent/ES447465A1/en not_active Expired
- 1976-04-29 BE BE166595A patent/BE841304A/en not_active IP Right Cessation
- 1976-04-29 DD DD7600192595A patent/DD128380A5/en unknown
- 1976-04-29 NL NLAANVRAGE7604581,A patent/NL190286C/en not_active IP Right Cessation
- 1976-04-29 BR BR2672/76A patent/BR7602672A/en unknown
- 1976-04-29 MX MX000201U patent/MX3319E/en unknown
- 1976-04-29 LU LU74857A patent/LU74857A1/xx unknown
- 1976-04-29 ZA ZA762575A patent/ZA762575B/en unknown
- 1976-04-29 YU YU1084/76A patent/YU37352B/en unknown
- 1976-04-29 AU AU13464/76A patent/AU501880B2/en not_active Expired
- 1976-04-29 AT AT316676A patent/AT344993B/en not_active IP Right Cessation
- 1976-04-29 CH CH540376A patent/CH603737A5/xx not_active IP Right Cessation
- 1976-04-29 IT IT68046/76A patent/IT1059948B/en active
- 1976-04-29 HU HU76SA2917A patent/HU177034B/en unknown
- 1976-04-30 NO NO761499A patent/NO142444C/en unknown
- 1976-04-30 PL PL1976189203A patent/PL105541B1/en unknown
- 1976-04-30 CS CS762877A patent/CS191304B2/en unknown
- 1976-04-30 JP JP51048690A patent/JPS5853648B2/en not_active Expired
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