GB1002399A - Process for producing melamine-urea-formaldehyde concentrates and products obtained thereby - Google Patents
Process for producing melamine-urea-formaldehyde concentrates and products obtained therebyInfo
- Publication number
- GB1002399A GB1002399A GB4913962A GB4913962A GB1002399A GB 1002399 A GB1002399 A GB 1002399A GB 4913962 A GB4913962 A GB 4913962A GB 4913962 A GB4913962 A GB 4913962A GB 1002399 A GB1002399 A GB 1002399A
- Authority
- GB
- United Kingdom
- Prior art keywords
- urea
- melamine
- formaldehyde
- mixture
- water
- 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
- HANVTCGOAROXMV-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine;urea Chemical compound O=C.NC(N)=O.NC1=NC(N)=NC(N)=N1 HANVTCGOAROXMV-UHFFFAOYSA-N 0.000 title abstract 2
- 239000012141 concentrate Substances 0.000 title 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract 7
- 229920000877 Melamine resin Polymers 0.000 abstract 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 6
- 239000004202 carbamide Substances 0.000 abstract 6
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 abstract 6
- 239000000203 mixture Substances 0.000 abstract 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 239000007864 aqueous solution Substances 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract 2
- 229920005989 resin Polymers 0.000 abstract 2
- 239000011347 resin Substances 0.000 abstract 2
- 125000003277 amino group Chemical group 0.000 abstract 1
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 239000008098 formaldehyde solution Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
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
- C08G12/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08G12/34—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds and acyclic or carbocyclic compounds
- C08G12/36—Ureas; Thioureas
- C08G12/38—Ureas; Thioureas and 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 stable, aqueous solution of a melamine-urea-formaldehyde reaction product equivalent, for resin forming purposes, to an aqueous solution of formaldehyde, melamine and urea, is obtained by (A) incorporating with an aqueous formaldehyde solution containing 30 to 50% by weight formaldehyde, at a temperature below 80 DEG C., melamine and urea in amounts such that the resulting mixture contains 2.5 to 5.0 mols. of formaldehyde for each mol. of amino group in the melamine and urea, and 0.5-2.5 mols. of melamine for each mol. of urea, (B) if necessary adjusting the pH of the mixture to within the range 4.5 to 6.0, (C) heating the mixture to 60 DEG to 80 DEG C., and then (D) distilling water from the mixture until the liquid residue contains 60 to 90% of all the components other than water. The pH of the aqueous formaldehyde may be adjusted before adding the urea and melamine, so that the pH of the mixture is 4.5 to 6.0. The water may be removed by "flash" evaporation. The products are stable liquids which may be used to prepare resins with additional urea and melamine. Examples are given.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16437562A | 1962-01-04 | 1962-01-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1002399A true GB1002399A (en) | 1965-08-25 |
Family
ID=22594205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4913962A Expired GB1002399A (en) | 1962-01-04 | 1962-12-31 | Process for producing melamine-urea-formaldehyde concentrates and products obtained thereby |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1495025A1 (en) |
| GB (1) | GB1002399A (en) |
-
1962
- 1962-12-31 GB GB4913962A patent/GB1002399A/en not_active Expired
-
1963
- 1963-01-03 DE DE19631495025 patent/DE1495025A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1495025A1 (en) | 1969-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1164049A (en) | Heat curable epoxy resin compositions | |
| GB568450A (en) | Removal of bacteria from fluids | |
| GB1099643A (en) | Preparation of alkylidene diureas | |
| GB1002399A (en) | Process for producing melamine-urea-formaldehyde concentrates and products obtained thereby | |
| ES393495A1 (en) | Processes for the manufacture of thermosetting resins | |
| GB914927A (en) | Hardenable condensation products and their production | |
| ES435914A1 (en) | Phenolic resins | |
| GB971587A (en) | Process for the production of water-miscible resins | |
| GB564424A (en) | Resinous products formed from 3-methylol 5,5-dimethyl hydantoin | |
| GB893901A (en) | Anionic aminoplast resins | |
| ES357619A1 (en) | Epoxy resins cured with dicyandiamide and a condensate of equimolar proportions of phthalic anhydride and diethylenetriamine | |
| GB927280A (en) | Process for the manufacture of modified cation active urea formaldehyde resins | |
| US2845424A (en) | Preparation of melamine | |
| SU128118A1 (en) | The method of obtaining synthetic resins | |
| GB898290A (en) | Modified melamine resins | |
| ES417941A1 (en) | Modified urea resins | |
| GB984167A (en) | Improvements in or relating to adhesive compositions | |
| GB1048710A (en) | Process for the manufacture of aminotriazine/formaldehyde molding compositions | |
| GB882140A (en) | Phenol modified melamine resin and process of producing same | |
| GB1080950A (en) | Process for the preparation of trioxane | |
| GB996724A (en) | Improvements in and relating to hardenable polyepoxides | |
| GB1112758A (en) | Polyamine compositions and their use as curing agents | |
| GB1116386A (en) | Epoxy resin compositions | |
| GB619492A (en) | Process for producing paper and the products so produced | |
| GB774810A (en) | Improvements in or relating to the manufacture of epoxide resins |