GB397909A - An improved process for making resinous products by condensing aldehydes with other compounds such as urea or phenol - Google Patents
An improved process for making resinous products by condensing aldehydes with other compounds such as urea or phenolInfo
- Publication number
- GB397909A GB397909A GB635132A GB635132A GB397909A GB 397909 A GB397909 A GB 397909A GB 635132 A GB635132 A GB 635132A GB 635132 A GB635132 A GB 635132A GB 397909 A GB397909 A GB 397909A
- Authority
- GB
- United Kingdom
- Prior art keywords
- condensation products
- urea
- phenol
- water
- reaction mixture
- 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
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 title abstract 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title abstract 3
- 239000004202 carbamide Substances 0.000 title abstract 3
- 150000001299 aldehydes Chemical class 0.000 title abstract 2
- 150000001875 compounds Chemical class 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 239000012262 resinous product Substances 0.000 title 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract 6
- 239000007859 condensation product Substances 0.000 abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 4
- 239000011541 reaction mixture Substances 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 2
- 238000000926 separation method Methods 0.000 abstract 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 239000012153 distilled water Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 239000012467 final product Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000007935 neutral effect Effects 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
- 239000007858 starting material Substances 0.000 abstract 1
- 229920003002 synthetic resin Polymers 0.000 abstract 1
- 239000000057 synthetic resin Substances 0.000 abstract 1
- -1 urea or phenol Chemical class 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
- C08G12/04—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
- C08G12/043—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with at least two compounds covered by more than one of the groups C08G12/06 - C08G12/24
- C08G12/046—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with at least two compounds covered by more than one of the groups C08G12/06 - C08G12/24 one being urea or thiourea
-
- 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
- C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
- C08G8/28—Chemically modified polycondensates
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
In the manufacture of synthetic resins by condensing aldehydes with other compounds such as urea or phenol, in the presence or absence of an acid, basic or neutral catalyst, the reaction product is fractionated by treatment with water into portions having different affinities for water, and the separated fractions are compounded in any desired proportions to produce the final product. In the preferred procedure, an experimental determination is made of the minimum amount of distilled water which must be added to the hot reaction mixture to effect separation into two layers when the mixture is cooled to 15 DEG C. After adding that amount of water and cooling the mixture, the lower layer comprising the highest condensation products only is separated, and the aqueous upper layer is further diluted. Further separation then occurs, with the precipitation of middle condensation products. The aqueous residue comprises the lowest condensation products, together with unchanged starting material and condensing agent. An example is given in which urea and formaldehyde are condensed in known manner and the reaction mixture is treated as described above; by compounding the fractions in specified proportions a product of improved properties is obtained. An example is given also in which phenol and formaldehyde are condensed in the presence of soda, the reaction mixture is treated as described above, and the highest and middle condensation products are mixed together, the aqueous residue being rejected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB635132A GB397909A (en) | 1932-03-02 | 1932-03-02 | An improved process for making resinous products by condensing aldehydes with other compounds such as urea or phenol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB635132A GB397909A (en) | 1932-03-02 | 1932-03-02 | An improved process for making resinous products by condensing aldehydes with other compounds such as urea or phenol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB397909A true GB397909A (en) | 1933-09-04 |
Family
ID=9812895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB635132A Expired GB397909A (en) | 1932-03-02 | 1932-03-02 | An improved process for making resinous products by condensing aldehydes with other compounds such as urea or phenol |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB397909A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2473920A (en) * | 1944-07-19 | 1949-06-21 | Du Pont | Fractionation of linear polyamides and products obtained thereby |
| US2757086A (en) * | 1950-08-19 | 1956-07-31 | Brown Co | Method of wet-strengthening paper with high molecular weight ureaformaldehyde resins |
| US2786825A (en) * | 1953-10-12 | 1957-03-26 | Hercules Powder Co Ltd | Process for the preparation of cationic polyalkylene modified urea-formaldehyde resins |
-
1932
- 1932-03-02 GB GB635132A patent/GB397909A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2473920A (en) * | 1944-07-19 | 1949-06-21 | Du Pont | Fractionation of linear polyamides and products obtained thereby |
| US2757086A (en) * | 1950-08-19 | 1956-07-31 | Brown Co | Method of wet-strengthening paper with high molecular weight ureaformaldehyde resins |
| US2786825A (en) * | 1953-10-12 | 1957-03-26 | Hercules Powder Co Ltd | Process for the preparation of cationic polyalkylene modified urea-formaldehyde resins |
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