摘要:
There are described novel imidazolides (N-acylimidazoles) of the formula I ##STR1## wherein R.sub.1 is methyl, ethyl or isopropyl,R.sub.2, R.sub.3 and R.sub.4 independently of one another are each hydrogen, methyl, ethyl or isopropyl, with the proviso that R.sub.2 is hydrogen only when R.sub.1 is isopropyl,R.sub.5, R.sub.6 and R.sub.7 independently of one another are each hydrogen, methyl, ethyl or isopropyl, or phenyl which is unsubstituted or substituted by methyl or ethyl groups, with the proviso that at least one of the symbols R.sub.5, R.sub.6 and R.sub.7 is phenyl which is unsubstituted or substituted according to definition.The imidazolides (I) are suitable as curing agents for polyepoxide compounds.
摘要:
There are described novel imidazolides (N-acylimidazoles) of the formula I ##STR1## wherein R.sub.1 is methyl, ethyl or isopropyl,R.sub.2, R.sub.3 and R.sub.4 independently of one another are each hydrogen, methyl, ethyl or isopropyl, with the proviso that R.sub.2 is hydrogen only when R.sub.1 is isopropyl,R.sub.5, R.sub.6 and R.sub.7 independently of one another are each hydrogen, methyl, ethyl or isopropyl, or phenyl which is unsubstituted or substituted by methyl or ethyl groups, with the proviso that at least one of the symbols R.sub.5, R.sub.6 and R.sub.7 is phenyl which is unsubstituted or substituted according to definition.The imidazolides (I) are suitable as curing agents for polyepoxide compounds.
摘要:
Aluminium monohydroxide salts of a carboxylic acid which are free from water of crystallization and have the formula ##STR1## or contain the structural element of the formula ##STR2## in which R is methyl, ethyl or phenyl or R.sup.1 is the divalent group --C.sub.n H.sub.2n --, in which n is a number from 3 to 10, and which can also be in the form of a dimer, have an acicular to rod-shaped crystal form. They are suitable as fillers for polymers, especially as reinforcing fillers for elastomeric epoxide resins.
摘要翻译:不含结晶水并具有式“IMAGE”或含有其中R为甲基,乙基或苯基或R 1的结构式“IMAGE”的羧酸的一羟基氢氧化物盐为二价基团-C n H 2n - ,其中n为3至10的数,并且其也可以是二聚体的形式,具有针状至棒状晶体形式。 它们适合作为聚合物的填料,特别是作为弹性体环氧树脂的增强填料。
摘要:
A process for the production of useful steroids obtained by side chain degradation of sterol source materials through the use of microorganisms is described.
摘要:
The invention relates to the use of crystalline resins as storage material in latent heat accumulators. Crystalline synthetic resins replace the crystalline inorganic salt of the known latent heat reservoirs. Preferably epoxide resins, polyurethane resins and polyester resins, which contain very specific long-chain polyester molecule moieties, are used. The crystalline synthetic resins have one or more, preferably two, crystallite melt temperatures.
摘要:
A liquid mixture of a glycidyl ether of a phenol novolac with, on average, more than 2 glycidyl groups in the molecule and a dihydric phenol in approximately equivalent amounts. The mixture is used to prepare cured hydrolysis-resistant plastics by casting the resin mixture or laminating, impregnating or bonding substrates.
摘要:
For signal luminaires which indicate the term STOP or DANGER upon activation, a circuit containing a first operating case feed unit and a second auxiliary source is provided for the purpose of supplying a reliable power supply. In this case, the second auxiliary source is inductively coupled to the signal luminaire electric circuit; while the signal luminaires are capacitively coupled to ground. The use of switches during operation in a fall-back level is obviated in this way.
摘要:
The invention relates to 12 α-hydroxysteroid dehydrogenases, nucleic acid sequences coding for the same, expression cassettes and vectors, recombinant microorganisms containing the corresponding coding nucleic acid sequences, a method for producing said 12 α-hydroxysteroid dehydrogenases, a method for enzymatic oxidation of 12 α-hydroxysteroids using said enzyme, a method for enzymatic reduction of 12-ketosteroids using said enzyme, a method for qualitative or quantitative determination of 12-ketosteroids and/or 12α-hydroxysteroids using said 12α-hydroxysteroid dehydrogenases and a method for production of ursodesoxycholic acid, comprising the enzyme-catalyzed cholic acid oxidation using said 12 α-hydroxysteroid dehydrogenases.
摘要:
The present invention relates to a specific salt of a dihydropteridione derivative, namely the trihydrochloride salt of the compound N-[trans-4-[4-(cyclopropylmethyl)-1-piperazinyl]cyclohexyl]-4-[[(7R)-7-ethyl-5,6,7,8-tetrahydro-5-methyl-8-(1-methylethyl)-6-oxo-2-pteridinyl]amino]-3-methoxy-benzamide, to its crystallisation in the form of an hydrate with water, to a process for the manufacture thereof, and to the use thereof in a pharmaceutical composition.
摘要:
The present invention relates to a crystalline form a dihydropteridione derivative, namely a crystalline form of the free base N-[trans-4-[4-(cyclopropylmethyl)-1-piperazinyl]cyclohexyl]-4-[[(7R)-7-ethyl-5,6,7,8-tetrahydro-5-methyl-8-(1-methylethyl)-6-oxo-2-pteridinyl]amino]-3-methoxy-benzamide, to a process for the manufacture thereof, and to the use thereof in a pharmaceutical composition.