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Priority to SU4403506/04ApriorityCriticalpatent/SU1536747A1/en
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Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
FIELD: organic chemistry, carboxylic acid esters. SUBSTANCE: synthesis is carried out by reaction of isophthalic acid dichloroanhydride with a mixture of ethylene glycol monomethacrylic ester and allyl alcohol in toluene medium in the presence of 15-23% alkali solution at their molar ratio 1: (0.8-1.9): (1.4-0.5): (5-5.6): (2.8-3.6). Process is carried out in the presence of 1-5 wt.-% catamine АБ at 15-20 C. The end product is obtained from the solution after addition of inhibitor polymerization p-methoxyphenol or phenothiazine and solvent distilling off. Obtained monomeric base retains liquid state at the storage for 1 year (not less) at 10 C and does not require additional treatment stage from inhibitor hydroquinone. EFFECT: enhanced stabilization of anaerobic sealing compositions. 2 tbl
SU4403506/04A1988-02-021988-02-02Method of preparing monomeric basis of anaerobic sealing composition
SU1536747A1
(en)
Process for the preparation of D-maltose monoesters with a high content of 6-0'-esters and their use in cosmetics, dentifrices, pharmaceuticals and food
COMPOSITION OF MAGNESIUM, TITANIUM, HALOGEN AND ESTER OF CARBOXYLIC ACID; PROCESS FOR ITS PREPARATION, USE OF THE SAME AS A CATALYST, CATALYST COMPONENT OR IN THE PREPARATION OF A CATALYST, PRODUCT OR INTERMEDIATE PRODUCT OF POLYMERIZATION CATALYZED BY THE COMPOSITION OR PREPARED BY