GB569042A - Dicyandiamine-aldehyde syrups and processes of producing same - Google Patents
Dicyandiamine-aldehyde syrups and processes of producing sameInfo
- Publication number
- GB569042A GB569042A GB8285/41A GB828541A GB569042A GB 569042 A GB569042 A GB 569042A GB 8285/41 A GB8285/41 A GB 8285/41A GB 828541 A GB828541 A GB 828541A GB 569042 A GB569042 A GB 569042A
- Authority
- GB
- United Kingdom
- Prior art keywords
- parts
- melamine
- syrups
- added
- aldehyde
- 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
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
In the production of resinous syrups by the condensation of dicyandiamide with an aldehyde, stabilization and regulation of the viscosity of the syrup is obtained by carrying out the condensation reaction in the presence of a hydrophilic sol obtained by the condensation of melamine with aldehydes. The sol is obtained by adding guanidine carbonate, ethanolamine, barium hydroxide, sodium hydroxide or like alkaline material to formalin until the pH of the solutions is adjusted between 6.0-6.5 and then adding melamine so that the ratio of formaldehyde to melamine is higher than 6 : 1, and then heating the mixture under reflux for at least 60 mins. In examples: (1) 0.22 parts of guanidine carbonate are added to 220 parts formaldehyde (37 per cent) to adjust the pH to 8.54. 31.5 parts melamine are then added and the mixture refluxed for 60 mins., the pH dropping to 6.4; (2) the sol obtained in (1) above is mixed with 8 parts guanidine carbonate and 64 parts dicyandiamide and the mixture refluxed for 2 hours at 65 DEG C. A syrup which is stable for several months is obtained. Starches, carbohydrates, proteins, e.g. casein, soya bean, may be added to the syrups.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US569042XA | 1940-08-08 | 1940-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB569042A true GB569042A (en) | 1945-05-02 |
Family
ID=22007267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8285/41A Expired GB569042A (en) | 1940-08-08 | 1941-07-01 | Dicyandiamine-aldehyde syrups and processes of producing same |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB569042A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3476828A (en) * | 1965-06-24 | 1969-11-04 | Montedison Spa | Preparation of a modified amino-triazinic resin and its mixtures |
| BE1005822A3 (en) * | 1992-05-19 | 1994-02-08 | Dsm Nv | Modified melamine formaldehyde-resin compound |
-
1941
- 1941-07-01 GB GB8285/41A patent/GB569042A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3476828A (en) * | 1965-06-24 | 1969-11-04 | Montedison Spa | Preparation of a modified amino-triazinic resin and its mixtures |
| BE1005822A3 (en) * | 1992-05-19 | 1994-02-08 | Dsm Nv | Modified melamine formaldehyde-resin compound |
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