GB867875A - Preparation of hydantoic acid-formaldehyde resins - Google Patents
Preparation of hydantoic acid-formaldehyde resinsInfo
- Publication number
- GB867875A GB867875A GB28972/57A GB2897257A GB867875A GB 867875 A GB867875 A GB 867875A GB 28972/57 A GB28972/57 A GB 28972/57A GB 2897257 A GB2897257 A GB 2897257A GB 867875 A GB867875 A GB 867875A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- hydantoic
- urea
- formaldehyde
- acids
- 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
- C08G12/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- 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)
Abstract
Resins are prepared from a hydantoic acid and formaldehyde, preferably by refluxing in a solvent in presence of a catalytic amount of acid, e.g. 85% phosphoric acid. The hydantoic acids or mixtures of such acids are prepared by treating an a -amino acid or mixture of amino acids produced by hydrolysis of a protein either with urea in alkaline solution or with potassium cyanate. Proline and hydroxy-proline yield ringcontaining hydantoic acids. The resins may be mixed with a urea-formaldehyde resin. In Example 1, dl-leucine was reacted with alkaline urea to produce iso-butyl hydantoic acid which was reacted with aqueous formaldehyde and phosphoric acid. The oily product was mixed with urea, formaldehyde and phosphoric acid to give a solid mixture of the two resins; (2) a protein hydrolysate left from a glutamic acid extraction was treated with urea to give a mixture of hydantoic acids which was reacted with formaldehyde to give a resin; (3) is similar to (2). Specification 867,876 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US867875XA | 1956-10-04 | 1956-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB867875A true GB867875A (en) | 1961-05-10 |
Family
ID=22200912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28972/57A Expired GB867875A (en) | 1956-10-04 | 1957-09-13 | Preparation of hydantoic acid-formaldehyde resins |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB867875A (en) |
-
1957
- 1957-09-13 GB GB28972/57A patent/GB867875A/en not_active Expired
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