摘要:
Dyestuffs of the formula ##STR1## wherein F stands for an organic chromophore andZ stands for radicals of the formulae ##STR2## wherein R.sub.1 -R.sub.2 denote hydrogen, alkyl, cycloalkyl, alkenyl, aryl, aralkyl or a heterocyclic structure orR.sub.2 and R.sub.3 represent an optionally substituted amino group or together form a ring orR.sub.1 with R.sub.2 and/or R.sub.3 with R.sub.4 form a ring,A.sup.(-) denotes an anion,Y denotes an anionic group,m denotes 0-2 andn denotes 1-6,and wherein the chromophore and said radicals can carry further substituents, provided that the total number of anionic substituents is smaller than the total number of quaternary and quaternizable amino groups, are used for dyeing cellulose fibres, in particular paper.
摘要:
Salts of N-acylaminohydroxynaphthalenesulphonic acids which, in the form of the free acid, correspond to the formula ##STR1## wherein R denotes hydrogen or alkyl,X denotes the radical of a monovalent or divalent acyl group,m denotes 1 or 2 andn denotes 1 or 2,and wherein at least one of the sulphonic acid groups contains, as a cation, a cation of the formula ##STR2## wherein R.sub.1 and R.sub.2 independently of one another denote C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.4 -alkyl or R.sub.3, orR.sub.1 and R.sub.2, together with the nitrogen atom, denote piperidinyl, morpholinyl or pyrrolinyl,R.sub.3 denotes the group ##STR3## R.sub.4 denotes hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.4 -alkyl or the group ##STR4## R.sub.5 and R.sub.6 denote hydrogen, methyl or ethyl and p represents an integer between 1 and 10,a process for their preparation and their use as coupling components for the preparation of azo dyestuffs or concentrated solutions thereof.
摘要:
There is provided a method for a mobile communication device registering in second radio cell of a mobile communication network based on a deactivation of a first radio cell in which the mobile communication device was located. An exemplary method comprises determining a random time interval by the mobile communication device. An expiration of the random time interval is determined starting from a predetermined point in time. The exemplary method also comprises registering in the second radio cell, when the expiration of the random time interval has been determined.
摘要:
The present invention includes a needle and a method for injecting a fluid, such as a medicament, into a woody plant, e.g., trees, shrubs or vines. In one embodiment the needle includes a body having a proximal end, a distal end, an inner conduit extending from the proximal end towards the distal end, and at least one aperture in communication with the inner conduit and an outer surface of the body. An area of uniform cross-section in the body contains an indentation in the outer surface of the body where the aperture opens to the outer surface.
摘要:
Process for the preparation of low-salt liquid dyestuff preparations, characterized in that they are obtained by:a) diazotization of an aromatic amine,b) 2-fold coupling of the diazo component obtained according to a) to I-acid-urea, in the presence of an inorganic base and in the absence of an organic base,c) desalination and, if appropriate, concentration by means of a pressure permeation of the reaction mixture obtained according to b), so that an inorganic salt content of less than 1% by weight is achieved.
摘要:
The new dyestuffs of the formula (I) ##STR1## wherein the substituents R and R.sup.1 and the index n have the meaning given in the description, are outstandingly suitable for dyeing and printing cellulose-containing materials, in particular for the preparation of recording liquids for ink jet recording systems.
摘要:
Triazine compounds which in their betaine form correspond to the formula ##STR1## wherein Y denotes hydrogen or the radical of an azo dye-stuff,R denotes hydrogen or alkyl,Ar denotes arylene,Z denotes halogen, hydroxyl, alkoxy, alkyl, aryl or an amino group which may be monosubstituted or disubstituted,m denotes 0 or 1 andX.sup.(+) denotes an ammonium groupamd whereimthe cyclic and acyclic radicals can carry further substituents,are used for dyeing/coloring natural and synthetic substrates and compositions, in particular paper.
摘要:
In order to save space and manufacturing costs a pull-off effect for the operation of a key should be achieved by using a single spring. Thus the spring must have an arc-like force vs. displacement characteristic having a maximum of force about on half-way of the key stroke. This is achieved by a meander-like shaped spring (1) of flat material having two end loops (2, 3) of equal height and one middle loop (4) of about twice this height, all these loops lying within the same plane. The mounted spring is pretensioned in two directions being perpendicular to each other and lying in said plane, the operating force being applied to the top (7) of the middle loop.
摘要:
In order to have a large flexibility of application with simultaneously a reasonable number of different piece parts for a so called transformer keyboard the key element is subdivided. A base (1) usable for all applications includes elements for the protection against rotation (14) and for fixing (13) it on a printed circuit board (6) without screws and without soldering operations, further elements to guide (18) the stem (2) and to limit its stroke. The stem receives a ferromagnetic core (4) within its guidance (21). The shape and the size of wall portions (2', 22) change in accordance with the desired raster of the keyboard wherein the key element is used. A cap (3) carrying the marking has the same shape for all stems and is connected to the stem in a detatchable manner (27, 33). Due to their small height these key elements are especially suited in applications for data terminal keyboards with an ergonomically good design.
摘要:
Cationic dyestuffs of the general formula ##STR1## wherein D is the radical of a diazo component free of anionic groups,X is a radical of the formula COCH.sub.3, CN, COOCH.sub.3, COOC.sub.2 H.sub.5, CONH.sub.2 or COC.sub.6 H.sub.5,R.sub.1 and R.sub.2 independently of each other are hydrogen or a nonionic substituent andR.sub.3, R.sub.4 and R.sub.5 independently of one another are alkyl, alkenyl or aralkyl, orR.sub.3 and R.sub.4, together with the nitrogen to which they are bonded, form a 5- or 6-membered heterocyclic ring,n is 1 or 2 andAn.sup.(-) is an anion, andwherein the cyclic and acyclic radicals can in turn be substituted, are used for dyeing synthetic and natural cationically dyeable materials, such as cotton, paper, leather, polyacrylnitrile or acid-modified polyester or polyamide fibres.