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Application filed by Товариство З Обмеженою Відповідальністю "Хтм", Обшество С Ограниченной Ответственностью "Хтм"filedCriticalТовариство З Обмеженою Відповідальністю "Хтм"
Priority to UA2000074261ApriorityCriticalpatent/UA40840A/en
Publication of UA40840ApublicationCriticalpatent/UA40840A/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Phenolic Resins Or Amino Resins
(AREA)
Abstract
A method for producing urea-formaldehyde resin by condensation of urea and formaldehyde being performed at a molar ratio of 1:(2.0 — 3.5), temperature of 80 – 90ºC during 1-3 hours at constant pH within the limits of 8.5 – 10.5 with subsequent drying the resin at the temperature of 97 – 104ºC up to achieving of Kp 1.465 – 1.470.
UA2000074261A2000-07-172000-07-17Method for producing urea-formaldehyde resin
UA40840A
(en)
Use of lactams, aminocarboxylic acids or their mixtures, process for producing polyamide by reacting at least one aminonitrile with water, and polyamide