摘要:
Disclosed are compounds having the formula: ##STR1## wherein: m=0, 1;n=0, 1;Z=CH, N;R.sub.1 is selected from chlorine, bromine, fluorine, CF.sub.3, phenyl, C.sub.1 -C.sub.2 -alkoxy, C.sub.1 -C.sub.2 -haloalkoxy, alkylthio, and haloalkylthio, wherein the halogen is Cl, Br, F;R.sub.2 is H, fluorine, chlorine, or bromine;R.sub.3 represents H, CH.sub.3, CN, or also F when m=1 or when n=1 and R.sub.4, R.sub.5 are H;R.sub.4, R.sub.5 are independently H or F;R.sub.3 and R.sub.4, furthermore, when m=0, may represent, taken together, a second bond between the two carbon atoms to which they are linked in formula (I); andR.sub.f is selected from the group consisting of polyfluoroalkyls, polyfluoroalkenyls and polyfluoroalkynyls containing up to 4 carbon atoms, containing at least 2 F atoms and, optionally, other halogens selected from Cl and Br.Anti-fungal compositions containing these new compounds.
摘要:
An interface circuit to the output of a programmable voltage ramp generator for decreasing the minimum voltage step of such a generator having two voltage channels and a minimum voltage step greater than 1 millivolt. The interface circuit receives an input from each of the two voltage channels (V.sub.2, V.sub.3), along with an inserted voltage (V.sub.1). The circuit includes a summing amplifier for (i) compressing the minimum voltage step from one voltage channel (V.sub.2) by a factor equal to or greater than such minimum voltage step, (ii) adding the voltage from the other channel (V.sub.3) to the compressed voltage, and (iii) subtracting the inserted voltage (V.sub.1) (or adding an inserted voltage which is negative). The inserted voltage (V.sub.1) is equal in magnitude to the maximum output value from the voltage channel that has the voltage compressed (V.sub.2). The output of the summing amplifier (V.sub.out) may be represented by:V.sub.out =(V.sub.3 /X)+(V.sub.2 /Y)+(V.sub.1 /Z)where X, Y, Z=attenuation or amplication factors. The interface circuit decreases the minimum voltage step at channel V.sub.2 by a factor Y down to a minimum voltage step of 1 millivolt or less.
摘要:
Melt-formable thermotropic liquid crystalline polymers containing groups derived from terephthalic acid and a mixture of phenyl hydroquinone, 2-(.alpha.-phenylisopropyl) hydroquinone and, if desired, 2,5 bis (.alpha.-phenylisopropyl) hydroquinone.
摘要:
A register is disclosed in which an applied data signal D or its complement D is used to set or reset an output RS flip-flop under control of an applied load control signal L. The load control signal is applied to a switching circuit which controls application of the data signal D or D to the set or reset input of the output flip-flop such that the data signal is only applied for a time period sufficient to cause a change in state of the output flip-flop.
摘要:
Compounds suitable for being used as lubricants, having general formula:(I) RO--(C.sub.3 F.sub.6 O).sub.m --(CFXO).sub.n --CFX--L, or(II) R"CFXO--(C.sub.3 F.sub.6 O).sub.x (CFXO).sub.y --(C.sub.2 F.sub.4 O).sub.z --CFX--L, whereR=--CF.sub.3, --C.sub.2 F.sub.5, --C.sub.3 F.sub.7X=F, --CF.sub.3R"=F, --CF.sub.3, --C.sub.2 F.sub.5m=an integer from 3 to 100n=a finite integer, or =zero, wherefore m+n ranges from 3 to 100, provided that, if n is finite, m/n ranges from 5 to 20 and R is preferably =CF.sub.3, if n=zero, R is preferably --C.sub.2 F.sub.5 or --C.sub.3 F.sub.7x=a finite integer, or =zeroy, z=finite integers, such that x+y+z ranges from 5 to 200, while (x+z)/y ranges from 5 to 0.5, provided that when x=zero, z/y ranges from 1 to 0.5 and y+z ranges from 5 to 200 n while X is preferably F, and R"=LL=group Y-Z, where:Y=--CH.sub.2 O--, --CH.sub.2 --OCH.sub.2, --CF.sub.2, --CF.sub.2 O--,Z=a non-aromatic, non-fluorinated organic radical free from activated hydrogen atoms, containing two or more heteroatoms, which are electron doublet donors, or an aromatic radical, either or not containing heteroatoms, capable of giving rise to coordinative bonds or to charge-transfer bonds, thus causing various kinds of adsorption phenomena on metallic, polymeric or ceramic surfaces.
摘要:
A method of fighting fungus infections by using compounds having the formula: ##STR1## wherein: R is H, a C.sub.1 -C.sub.4 alkyl, an alkenyl, or an alkynyl radical; n is 1 or 2;A represents a C.sub.1 -C.sub.6 alkylene bridge, an arylene or a heterocyclic bridge;X represents O, S, SO, SO.sub.2 ; andR.sup.1 is selected from the group consisting of C.sub.1 -C.sub.6 alkyl radicals, a phenyl radical, optionally substituted, polyfluoroalkyl radicals containing from 1 to 4 carbon atoms and at least 2 fluorine atoms, polyfluoroalkenyl radicals containing from 2 to 4 carbon atoms and at least 2 fluorine atoms, but excluding compounds having the formula (I) wherein A is an alkylene radical, n is 2, and R.sup.1 is a C.sub.1 -C.sub.6 alkyl radical.
摘要:
Electronic components are welded or soldered or bonded to a support by arranging said components on the surface of the support and/or in holes piercing the support, in the presence of soldering materials having binding properties, and by then putting the thus-obtained assembly in contact with a perfluoropolyether in the liquid state, said perfluoropolyether having a temperature at least equal to that at which the soldering material develops its binding properties.
摘要:
There is disclosed a process for the preparation of halogenated (2,2)-paracyclophanes by Hofmann elimination, in an alkaline medium, from p.methylbenzyltrimethylammonium hydroxide halogen-substituted in the nucleus.
摘要:
There are disclosed compounds having the formula (I) and (II): ##STR1## wherein: R' and R", equal to or different from each other, are a C.sub.1 -C.sub.7 alkyl, a C.sub.3 -C.sub.7 cycloalkyl, a heterocycloalkyl, alkoxyalkyl, dialkoxyalkyl, haloalkyl;X is a halogen, a C.sub.1 -C.sub.4 alkyl, a haloalkyl, alkoxyl, phenyl; andY is H or a halogen.
摘要:
Compounds suitable for being used as lubricants, having general formula:(I) RO--(C.sub.3 F.sub.6 O).sub.m --(CFXO).sub.n --CFX--L,or(II) R"CFXO--(C.sub.3 F.sub.6 O).sub.x (CFXO).sub.y --(C.sub.2 F.sub.4 O).sub.z --CFX--L,whereR=--CF.sub.3, --C.sub.2 F.sub.5, --C.sub.3 F.sub.7X=F, --CF.sub.3R"=F, --CF.sub.3, --C.sub.2 F.sub.5m=an integer from 3 to 100n=a finite integer, or=zero, wherefore m+n ranges from 3 to 100, provided that, if n is finite, m/n ranges from 5 to 20 and R is preferably=CF.sub.3, if n=zero, R is preferably --C.sub.2 F.sub.5 or --C.sub.3 F.sub.7x=a finite integer, or=zeroy, z=finite integers, such that x+y+z ranges from 5 to 200, while (x+z)/y ranges from 5 to 0.5, provided that when x=zero, z/y ranges from 1 to 0.5 and y+z ranges from 5 to 200 n while X is is preferably F, and R"=LL=group Y-Z,where:Y=--CH.sub.2 O--, --CH.sub.2 --OCH.sub.2, --CF.sub.2, --CF.sub.2 O--,Z=a non-aromatic, non-fluorinated organic radical free from activated hydrogen atoms, containing two or more heteroatoms, which are electron doublet donors, or an aromatic radical, either or not containing heteroatoms, capable of giving rise to coordinative bonds or to charge-transfer bonds, thus causing various kinds of adsorption phenomena on metallic, polymeric or ceramic surfaces.
摘要翻译:适用于润滑剂的化合物,具有以下通式:(I)RO-(C 3 F 6 O)m - (CFXO)n -CFX-L或(II)R''CFXO-(C 3 F 6 O)x(CFXO)y - ( C 2 F 4 O)z-CFX-L,其中R = -CF 3,-C 2 F 5,-C 3 F 7 X = F,-CF 3 R“= F,-CF 3,-C 2 F 5 m = 3至100的整数n =有限整数, 或= = 0,因此如果n为有限,则m / n为5〜20,R优选= CF 3,若n = 0,则R优选为-C 2 F 5或-C 3 F 7 x =有限整数,或=零y,z =有限整数,使得x + y + z的范围为5至200,而(x + z)/ y的范围为5至0.5,条件是当x = z / y为1〜0.5,y + z为5〜200n,X优选为F,R“= LL = YZ组,其中:Y = -CH 2 O - , - CH 2 -OCH 2,-CF 2 ,-CF 2 O-,Z =不含活性氢原子的非芳族非氟化有机基团,含有两个或更多个杂原子,它们是电子双键供体,或者是含有或不含有杂原子的芳族基团,能够产生 对协调债券或收费 转移键,从而在金属,聚合物或陶瓷表面引起各种吸附现象。