摘要:
DIGLYCIDYL ESTERS ARE PRODUCED BY THE REACTION, IN A KNOWN MANNER, OF DICARBOXYLIC ACIDS OF MONOUCLEAR N-HETEROCYCLIC COMPOUNDS, E.G. N,N''-BIS-(B-CARBOXYETHYL)-5,5-DIMETHYLHYDANTOIN, WITH EPIHALOGENHYDRIN, E.G. WITH EPICHLOROHYDRIN. EXAMPLE: THE NEW COMPOUND
THE NEW DIGLYCIDYL ESTERS CAN BE EASILY CURED WITH ALL KNOWN EPOXIDE RESIN CURING AGENTS, AND ARE SUITABLE FOR THE PRODUCTION OF MOULDED SHAPES POSSESSING GOOD MECHANICAL PROPERTIES.
摘要:
NEW DIGLYCIDYL ETHERS OF BINUCLEAR, FIVE-MEMBERED OR SIX-MEMBERED, UNSUBSTITUTED OR SUBSTITUTED N-HETEROCYCLIC COMPOUNDS CONTAINING STYRENE OXIDE AS AN ADDUCT, WHICH POSSESS TWO N ATOMS PER HETEROCYCLIC RING, OBTAINED BY REACTION OF BINUCLEAR, FIVE-MEMBERED OR SIX-MEMBERED, UNSUBSTITUTED OR SUBSTITUTED N-HETEROCYCLIC COMPOUNDS, SUCH AS BIS-(HYDANTOIN) OR BIS-(DIHYDROURACIL) COMPOUNDS, FOR EXAMPLE 1,1''-METHYLENE-BIS-(5,5-DIMETHYLHYDANTOIN), BIS-(5,5-DIMETHYLHYDANTOINYL-3)-METHANE OR 1,1''-METHYLENE-BIS-(5,6-DIHYDROURACIL), WITH STYRENE OXIDE TO GIVE THE APPROPRIATE MONOHYDROXY OR DIHYDROXY COMPOUNDS, AND SUBSEQUENT GLYCIDYLATION OF THE OH GROUPS OR OF THE OH GROUP AND NH GROUP TO GIVE THE CORRESPONDING GLYCIDYL ETHERS.
摘要:
A process for preparing compounds which contain hydantoin groups, which is characterized in that compounds which contain isocyanate or isothiocyanate groups are reacted with compounds which contain an .alpha.-halocarboxylic acid group or derivatives thereof at least once in the molecule.
摘要:
Process for curing polyacrylates, especially in the form of thin layers or coatings, of the formula
WHEREIN R1 and R2 denote a hydrogen atom or the methyl group and n denotes the number 2 or 3 and A denotes an organic radical which contains at least one grouping
WHEREIN Z represents a divalent radical required to complete a five-membered or six-membered ring, by means of ionising rays, for example electron beams, X-rays or gamma-rays. The resulting coatings show improved weathering resistance, extensibility and gloss retention.
摘要:
NEW EPOXIDE RESIN MIXTURES CONTAINING A MAJOR PROPORTION OF HIGHER-MOLECULAR N,N''-DIGLYCIDYL COMPOUNDS OF CYCLIC UREIDE DERIVATIVES ARE OBTAINED IF 1 MOL OF A CYCLIC UREIDE, SUCH AS HYDANTOIN OR DIHYDROURACIL, IS REACTED WITH 1,2,3,0 MOLS OF EPIHALOGENOHYDRIN IN A KNOWN MANNER, THE NEW EPOXIDE RESIN MIXTURES ARE SUITABLE FOR THE MANUFACTURE OF MOULDINGS AND COATINGS HAVING GOOD MECHANICAL PROPERTIES AND DISPLAY THE ADVANTAGE, AS COMPARED TO THE LOW MOLECULAR N,N''-DIGLYCIDYL COMPOUNDS OF CYCLIC UREIDES, THAT ON GELLING A SLIGHTER EXOTHERMIC EFFECT OCCURS AND ON CURRING A SLIGHTER SKRINKAGE OCCURS.
摘要:
POLYGLYCIDYL COMPOUNDS ARE MANUFACTURED BY REACTING ADDUCTS OF 1 MOL OF A DIISOCYANATE AND 2 MOLS OF A HYDANTOIN OR DIHYDROURACIL, FOR EXAMPLE N, N''-BIS-(5,5DIMETHYLHYDANTOIN-1-CARBONYL)-HEXAMETHYLENEDIAMINE, WITH AN EPIHALOGENOHYDRIN OR B-METHYLEPIHALOGENOHYDRIN, FOR EXAMPLE EPICHLOROHYDRIN, IN THE PRSENCE OF A CATALYST. EXAMPLE: THE NEW COMPOUND OF THE FORMULA
THE NEW POLYGLYCIDYL COMPOUNDS CAN BE CONVERTED, BY MEANS OF THE CUSTOMARY CURING AGENTS FOR EPOXIDE RESINS, SUCH AS DICARBOXYLIC ACIDS OR POLYAMINES, INTO MOULDINGS HAVING GOOD MECHANICAL AND DIELECTRIC PROPERTIES.
摘要翻译:1362858多缩水甘油基化合物CIBAGEIGY AG 1971年10月25日[1970年11月2日] 49486/71标题C2C [也在C3部分]通式的新型双核N-杂环多缩水甘油化合物其中A表示二价脂族,脂环族,脂环族 - 脂族,芳脂族,芳族 或杂环脂族基团,Z 1和Z 2各自表示下式的二价基团,其中R 1和R 2各自表示氢原子或脂族,脂环族,芳脂族或芳族烃基,或一起形成二价脂族或脂环族烃基 ,R 3和R 5各自表示H或脂族,脂环族,芳脂族或芳族烃基,R 4和R 6各自表示H或烷基,X 1和X 2各自表示H或甲基,B 1和B 2各自表示H,缩水甘油基或#-甲基缩水甘油基,可以通过(i)通过已知方法将合适的原料转化为1,2-环氧乙基或1-甲基-1,2-环氧乙基化合物来制备,例如 在强碱存在下转化羟基卤代乙基,或通过与过酸或H 2 O 2反应转化乙烯基; 式IIa或IIb的起始物质可以通过在合适的催化剂的存在下与表卤代醇或α-甲基表卤代醇反应制得,与式III化合物反应,或(ⅱ)通过在升高的温度下反应一分子量的 式O = C = NAN = C = O的二异氰酸酯,其中2分子量的式VIIIa或VIIIb的化合物。