GB623355A - Improvements in or relating to compositions containing aminotriazine-aldehyde condensation products and methods of preparing same - Google Patents
Improvements in or relating to compositions containing aminotriazine-aldehyde condensation products and methods of preparing sameInfo
- Publication number
- GB623355A GB623355A GB7652/43A GB765243A GB623355A GB 623355 A GB623355 A GB 623355A GB 7652/43 A GB7652/43 A GB 7652/43A GB 765243 A GB765243 A GB 765243A GB 623355 A GB623355 A GB 623355A
- Authority
- GB
- United Kingdom
- Prior art keywords
- condensation product
- acid
- colloidal
- formaldehyde
- condensation products
- 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2361/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08J2361/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (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
<PICT:0623355/IV (a)/1> A colloidal cationic dispersion of partially polymerized aminotriazinealdehyde condensation product is prepared by forming an acidified aqueous solution of a substantially unpolymerized condensation product, the acid producing a pH of 0.5-3.5 when measured at 15 per cent resin solids content, and ageing the solution to polymerize the condensation product until the particles thereof have dimensions within the colloidal range. Suitable aminotriazines are melamine, ammeline, ammelide, formoguanamine, acetoguanamine, propionoguanamine, 4-N-methyl or 4-N-ethyl-2-acetoguanamines. They may be employed as salts. Suitable aldehydes are formaldehyde, acetaldehyde, and propionaldehyde. Water - soluble condensation products prepared by heating the condensation products with lower aliphatic alcohols in presence of small amounts of acid catalyst may also be used. Suitable acids mentioned are hydrochloric, phosphoric formic, acetic, and sulphurous. Sulphuric acid is disclaimed. Examples are given of the preparation of a number of colloidal melamine-formaldehyde condensation product solutions and their behaviour on electrophoresis and coagulation with concentrated acid is described. In Example 4 there is described the preparation of a condensation product from ammeline, formaldehyde and phosphoric acid and its ageing to form a cationic colloidal solution. Example 5 is similar, but uses acetoguanamine and hydrochloric acid. The colloids are substantive towards hydrated cellulose and may be added to paper stock, as described in Specification 622,905. Specification 477,841 also is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US623355XA | 1942-07-31 | 1942-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB623355A true GB623355A (en) | 1949-05-17 |
Family
ID=22041799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7652/43A Expired GB623355A (en) | 1942-07-31 | 1943-05-13 | Improvements in or relating to compositions containing aminotriazine-aldehyde condensation products and methods of preparing same |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB623355A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4663387A (en) * | 1985-04-02 | 1987-05-05 | Kuwait Institute For Scientific Research | Utilization of melamine waste effluent |
| US5380815A (en) * | 1991-11-14 | 1995-01-10 | Ministero Dell `Universita` e Della Ricerca Scientifica e Tecnologica | Melaminic polycondensates |
-
1943
- 1943-05-13 GB GB7652/43A patent/GB623355A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4663387A (en) * | 1985-04-02 | 1987-05-05 | Kuwait Institute For Scientific Research | Utilization of melamine waste effluent |
| US5380815A (en) * | 1991-11-14 | 1995-01-10 | Ministero Dell `Universita` e Della Ricerca Scientifica e Tecnologica | Melaminic polycondensates |
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