ES413027A1 - Procedure for the preparation of carbamide-formaldehyde condensation products. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the preparation of carbamide-formaldehyde condensation products. (Machine-translation by Google Translate, not legally binding)
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Novartis AG
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Ciba Geigy AG
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Priority claimed from CH463272Aexternal-prioritypatent/CH566294A5/xx
Priority claimed from CH1872772Aexternal-prioritypatent/CH574430A5/en
Application filed by Ciba Geigy AGfiledCriticalCiba Geigy AG
Publication of ES413027A1publicationCriticalpatent/ES413027A1/en
Process for the preparation of condensation products of carbamide-formaldehyde of type having at least one hydrophobic radical and a hydrophilic radical, of which at least one hydrophobic radical is linked directly or by means of an oxygen bridge or (see formula) (where a means hydrogen or alkyl of 1 to 4 carbon atoms) and at least one hydrophilic radical is linked by means of a N-methylol ether bridge, to an amino-1,3,5-triazine radical, characterized by reacting: A) a condensation product of carbamide-formaldehyde containing at least one hydrophobic radical linked in the manner already indicated and having at least one free N-methylol group, with B) an alkylene glycol, in the presence of a weak acid, at a temperature of 80 to 120ºC and with a pressure of 1 to 30 mm hg. (Machine-translation by Google Translate, not legally binding)
ES413027A1972-03-281973-03-27Procedure for the preparation of carbamide-formaldehyde condensation products. (Machine-translation by Google Translate, not legally binding)
ExpiredES413027A1
(en)
A procedure for the production of linear polymers of low molecular weight of tereftal acid and ethylenglicol. (Machine-translation by Google Translate, not legally binding)
MEDICINAL PRODUCTS BASED ON HYDROSOLUBBLE HYDROXYFLAVON ETHERS FOR THE TREATMENT OF CONDITIONS ARISING FROM FRAGILITY AND PERMEABILITY OF BLOOD CAPILLARY
A procedure for the preparation of (tetrahydropyranil-2 ') - 3-hexahidro- 1,2,3,4,6,7-5-h-ciclopentapirimidine - diona-2,4. (Machine-translation by Google Translate, not legally binding)