GB314908A - Improvements in the manufacture and production of condensation products of urea and formaldehyde - Google Patents
Improvements in the manufacture and production of condensation products of urea and formaldehydeInfo
- Publication number
- GB314908A GB314908A GB36828A GB36828A GB314908A GB 314908 A GB314908 A GB 314908A GB 36828 A GB36828 A GB 36828A GB 36828 A GB36828 A GB 36828A GB 314908 A GB314908 A GB 314908A
- Authority
- GB
- United Kingdom
- Prior art keywords
- urea
- trioxymethylene
- thiourea
- formaldehyde
- formamide
- 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
- C08G12/10—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with acyclic compounds having the moiety X=C(—N<)2 in which X is O, S or —N
- C08G12/12—Ureas; Thioureas
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
314,908. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Jan. 5, 1928. Adhesives.-An adhesive, suitable for veneering wood and glass or for combining glass plates with plates of other materials is prepared by heating urea or thiourea or a mixture of both to fusion with a solid polymer of formaldehyde in the presence of an alkaline agent. After cooling and disintegrating, the product is placed in a thin layer between the surfaces to be united and the whole subjected to heat and pressure. The addition of an alkaline organic compound, such as formamide, to the starting material is advantageous. Examples are given of the condensation of (1) urea, thiourea and trioxymethylene in the presence of sodium acetate; formamide may be employed in addition to or in replacement of the sodium acetate; (2) urea and trioxymethylene in the presence of potassium acetate; (3) thiourea and trioxymethylene with the assistance of borax.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB36828A GB314908A (en) | 1928-01-05 | 1928-01-05 | Improvements in the manufacture and production of condensation products of urea and formaldehyde |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB36828A GB314908A (en) | 1928-01-05 | 1928-01-05 | Improvements in the manufacture and production of condensation products of urea and formaldehyde |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB314908A true GB314908A (en) | 1929-07-05 |
Family
ID=9703169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB36828A Expired GB314908A (en) | 1928-01-05 | 1928-01-05 | Improvements in the manufacture and production of condensation products of urea and formaldehyde |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB314908A (en) |
-
1928
- 1928-01-05 GB GB36828A patent/GB314908A/en not_active Expired
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