GB326070A - Process for the production of a synthetic resin - Google Patents
Process for the production of a synthetic resinInfo
- Publication number
- GB326070A GB326070A GB1221229A GB1221229A GB326070A GB 326070 A GB326070 A GB 326070A GB 1221229 A GB1221229 A GB 1221229A GB 1221229 A GB1221229 A GB 1221229A GB 326070 A GB326070 A GB 326070A
- Authority
- GB
- United Kingdom
- Prior art keywords
- urea
- formaldehyde
- filler
- copper sulphate
- production
- 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)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
326,070. Keller, A. V. April 19, 1929. Urea-formaldehyde and like condensation products.-Resinous products are prepared by condensing urea or its derivatives, such as mono- or di-methylurea, acetylurea, and urea hydrochloride, with formaldehyde or paraformaldehyde in the presence of copper sulphate. An example is given in which urea, commercial formaldehyde, and copper sulphate are heated until a liquid semicondensate separates out, whereafter the supernatant liquid is removed and the product is dried by heat and/or reduced pressure. It may then be mixed with wood flour or other filler and the mixture moulded, with or without addition of colouring materials, &c. The greenish-blue colour of the semi-condensate may be removed or reduced by chlorination or like bleaching means before adding the filler.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1221229A GB326070A (en) | 1929-04-19 | 1929-04-19 | Process for the production of a synthetic resin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1221229A GB326070A (en) | 1929-04-19 | 1929-04-19 | Process for the production of a synthetic resin |
Publications (1)
Publication Number | Publication Date |
---|---|
GB326070A true GB326070A (en) | 1930-03-06 |
Family
ID=10000394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1221229A Expired GB326070A (en) | 1929-04-19 | 1929-04-19 | Process for the production of a synthetic resin |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB326070A (en) |
-
1929
- 1929-04-19 GB GB1221229A patent/GB326070A/en not_active Expired
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