GB470519A - Process for the manufacture of carbamide and formaldehyde products in presence of sulphonated amide derivatives, and products obtained - Google Patents
Process for the manufacture of carbamide and formaldehyde products in presence of sulphonated amide derivatives, and products obtainedInfo
- Publication number
- GB470519A GB470519A GB11526/36A GB1152636A GB470519A GB 470519 A GB470519 A GB 470519A GB 11526/36 A GB11526/36 A GB 11526/36A GB 1152636 A GB1152636 A GB 1152636A GB 470519 A GB470519 A GB 470519A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphonated
- formaldehyde
- products
- carbamide
- manufacture
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
Urea and formaldehyde are reacted in the presence of a sulphonated amide, preferably p-toluene-sulphonamide, and powdered zinc. During the primary condensation or before the reactants have boiled there may be added cheap soluble fillers, e.g. sugar refinery waste. The solution of condensate is filtered, slightly reheated if cloudy, and dehydrated, preferably under reduced pressure, until under constant pressure, the temperature of the syrup rises 4 to 5 DEG C. in 5 mins. The product is soluble in water, alcohol, ketones, amd hydrocarbons and may be plasticized by glycerol or ethylene glycol; it may be gelled by the addition of an organic acid or salt; it may be used for the production of coatings which are finally hardened by spraying with ammonium phosphate solution, and of laminated blocks of resin alone or with glass, celluloid, or cellulose acetate. An Example is given. The Specification as open to inspection under Sect. 91 refers to the use, instead of metallic zinc, of a metal in pulverulent form, preferably one not causing colouration by oxidation or hydration. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR470519X | 1935-06-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB470519A true GB470519A (en) | 1937-08-17 |
Family
ID=8902507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11526/36A Expired GB470519A (en) | 1935-06-08 | 1936-04-22 | Process for the manufacture of carbamide and formaldehyde products in presence of sulphonated amide derivatives, and products obtained |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB470519A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3536648A (en) * | 1966-10-31 | 1970-10-27 | Pennwalt Corp | Treatment of cellulosic textile materials to impart crease resistance thereto |
| US3617190A (en) * | 1965-11-16 | 1971-11-02 | Stevens & Co Inc J P | Methylolated sulfonamides and crosslinking of polymers therewith |
| US3617192A (en) * | 1965-11-22 | 1971-11-02 | Cotton Producers Inst | Crosslinking of cellulosic materials with products produced by the reaction of alkyl sulfonamides and formaldehyde under alkaline conditions |
-
1936
- 1936-04-22 GB GB11526/36A patent/GB470519A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3617190A (en) * | 1965-11-16 | 1971-11-02 | Stevens & Co Inc J P | Methylolated sulfonamides and crosslinking of polymers therewith |
| US3617192A (en) * | 1965-11-22 | 1971-11-02 | Cotton Producers Inst | Crosslinking of cellulosic materials with products produced by the reaction of alkyl sulfonamides and formaldehyde under alkaline conditions |
| US3536648A (en) * | 1966-10-31 | 1970-10-27 | Pennwalt Corp | Treatment of cellulosic textile materials to impart crease resistance thereto |
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