GB882140A - Phenol modified melamine resin and process of producing same - Google Patents
Phenol modified melamine resin and process of producing sameInfo
- Publication number
- GB882140A GB882140A GB34116/59A GB3411659A GB882140A GB 882140 A GB882140 A GB 882140A GB 34116/59 A GB34116/59 A GB 34116/59A GB 3411659 A GB3411659 A GB 3411659A GB 882140 A GB882140 A GB 882140A
- Authority
- GB
- United Kingdom
- Prior art keywords
- melamine
- formaldehyde
- phenol
- mixture
- mol ratio
- 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
- 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
- C08G14/00—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00
- C08G14/02—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes
- C08G14/04—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes with phenols
- C08G14/06—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes with phenols and monomers containing hydrogen attached to nitrogen
- C08G14/10—Melamines
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
A process of preparing a resin comprises heat reacting melamine and formaldehyde in the presence of from about 0,2% to 10% by weight based on the weight of melamine of a tertiary amine having a boiling point below 100 DEG C., at a temperature from about 70 DEG C. to reflux until a water tolerance between about 300% and 5,000% is attained, adding a phenol and reacting until the resin produced becomes hydrophobic, wherein the mol ratio of melamine to formaldehyde is between 1:1 and 1:6 and the mol ratio of melamine to the phenol is between 1:9 and 9:1, respectively. Preferably the mol ratio of melamine to formaldehyde is in the range of 1:1,5 to 1:2,5. With the phenol there can also be added further formaldehyde. Specified amines are trimethylamine, triethylamine, diethylmethylamine, and dimethylethylamine. Phenol itself, cresols, xylenols, resorcinol and bisphenol A are specified phenols. In a typical example (1) a mixture of melamine, aqueous formaldehyde and triethylamine is refluxed until the product has a water tolerance of 1,000%. Phenol, more formaldehyde and aqueous ammonia are then added and the mixture is refluxed until it becomes hydrophobic. Ethyl alcohol is then added and the mixture is cooled.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US882140XA | 1958-10-20 | 1958-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB882140A true GB882140A (en) | 1961-11-15 |
Family
ID=22210051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34116/59A Expired GB882140A (en) | 1958-10-20 | 1959-10-08 | Phenol modified melamine resin and process of producing same |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB882140A (en) |
-
1959
- 1959-10-08 GB GB34116/59A patent/GB882140A/en not_active Expired
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