摘要:
Basic polypyrrylenemethines, and salts thereof, having conjugated double bonds and constructed from optionally substituted five-membered heterocyclic rings containing nitrogen, as the only hetero atom in the ring are disclosed, with the five-membered rings, in each case, being bonded to one another in pairs via an optionally substituted carbon atom as a bridging member. The polymer compositions of the invention contain at least five of these five-membered rings and 0 to 50%, relative to the weight of these polymers, of dopants and/or being electrochemically doped. A process for the preparation of the claimed compositions is further disclosed. The polymer compositions of the invention have electroconducting and semi-conducting properties and are useful, for example, in batteries, circuits and switches, if appropriately used in conjunction with other polymers. In addition, the compounds of the invention can also be employed as absorbents for heavy metals and as catalysts.
摘要:
Aqueous emulsions of organopolysiloxanes functionalized with a limited amount of aminoalkyl-functional end groups and silicone resins are storage stable, yet capable of adequate crosslinking upon application to substances to be hydrophobicized.
摘要:
Compositions useful as fabric softeners contain a long chain β-ketocarbonylquat containing at least one quaternary ammonium group and an organopolysiloxane polymer or siloxane copolymer.
摘要:
A scraper for an optical surface of a device is disclosed. The scraper includes a blade having an edge that is rigid and non-deforming to withstand high shear stresses. The blade is configured to rotate about a first axis parallel to the optical surface and also configured to move in a line with respect to a second axis perpendicular to the optical surface. This allows the rigid, non-deforming blade to maintain contact with the optical surface. Furthermore, the edge is configured to move across the optical surface to remove any materials adhered to the surface. The scraper can be used to clean the optical surface of an instrument, for example.
摘要:
Compositions comprising (A) an organosilicon compound of the formula Ra(R1O)bR2cSiO(4-a-b-c)/2 (I) in which R2 independently denotes a monovalent, SiC-bonded, optionally substituted, aliphatic cyclic or aliphatic branched hydrocarbon radical having at least 3 carbon atoms, R, and R1 are hydrogen or hydrocarbon radicals, the sum a+b+c≦3, the organosilicon compound has at least one unit of the formula (I) with c other than 0, and in at least 50% of all of the units of the formula (I) in the organosilicon compound the sum a+b+c is 2; at least one additive (B) selected from (B1) filler particles and/or (B2) organopolysiloxane resin(s) and optionally (C) an organosilicon compound which has units of the formula (III), R5g(R6O)hSiO(4-g-h)/2 where R5 and R6 are hydrogen or a hydrocarbon radical, g+h≦3 and in at least 50% of the units (III), g+h=2, are highly effective and long lasting defoamers.
摘要翻译:包含(A)式的有机硅化合物(?)在线公式描述=“在线公式”末端=“引线”→Ra(R1O)bR2cSiO(4-abc)/ 2(I) in-line-formula description =“In-line Formulas”end =“tail”?>其中R2独立地表示具有至少3个碳原子的单价SiC键合的任选取代的脂族环状或脂族支链烃基,R 并且R1是氢或烃基,并且a + b + c <3,有机硅化合物具有至少一个式(I)的单元,c不为0,至少有50% 有机硅化合物中式(I)的单位和a + b + c为2; 至少一种选自(B1)填料颗粒和/或(B2)有机聚硅氧烷树脂的添加剂(B)和(C)具有式(III)单元的有机硅化合物, 描述=“在线公式”end =“lead”?> R5g(R6O)hSiO(4-gh)/ 2 <?in-line-formula description =“In-line Formulas”end =“tail”?> where R5和R6是氢或烃基,g + h <3,并且在至少50%的单元(III)中,g + h = 2是高效和持久的消泡剂。
摘要:
A composition for defoaming includes an organosilicon compound having radicals that are attached directly to the silicon and that have a specific number of carbon atoms. The composition may also include filler particles, and organopolysiloxane resin, and combinations thereof.
摘要:
A fiber detector apparatus includes a hub having one or more electrical contacts. The hub is configured to be placed against a connector, which is disposed on an electromagnetic energy source, such that electrical continuity is established between the electrical contacts of the hub and electrical contacts on a connector plate of the electromagnetic energy source. The number and positions of the electrical contacts correlate with the presence and characteristics of one or more fibers extending through the hub toward the electromagnetic energy source. A data storage microcircuit may also be provided within the hub to store identification information about the fibers being used. Knowing the physical characteristics of the fibers being used in a particular procedure can permit a user of the apparatus to improve the effectiveness of a procedure using the electromagnetic energy.
摘要:
An energy-absorbing steering wheel, in particular a large-volume steering wheel for HGVs is disclosed, with a steering-wheel skeleton with hub, spokes and steering-wheel rim which are provided with a casing, the skeleton portions of the spokes extending from the steering-wheel rim as far as the hub, and the region above the hub being of energy-absorbing design. There is provision for the casing to have, at least in the region above the hub, at least one cavity for assisting the energy absorption.
摘要:
A method is disclosed for coating substantially pure boron or highly boron-rich borides in a controlled manner. Such a method of coating of boron has a variety of applications, including surface chemical and wear protection, neutron absorption, prevention of impurity emission from heated filaments and ion beams, elimination of metal dust from vacuum systems, boridizing, boron cluster emission, and reactive chemistry. Borides with a boron-to-metal ratio of 20 or more are known to exist and may be used as a feedstock for substantially pure boron coatings for deposition processes requiring feedstock electrical conductivity, and/or enhanced reactivity. While most metal borides coincidentally produce significant metal vapor as a by-product, certain borides of yttrium, holmium, erbium, thulium, terbium, gadolinium, and lutetium have been identified as capable of producing substantially pure boron vapor.
摘要:
Storage stable polyorganosiloxane-silicone resin mixtures contain: 1) 100 parts by weight of one or more liquid aminoalkyl-containing polyorganosiloxanes containing at least 80 mol % of units selected from units of the formulae Ia, Ib, II and III R12SiO(4-a-b)/2 (Ia), R1aR2bSiO(4-a-b)/2 (Ib), R33SiO(1/2) (II), R32R4SiO(1/2) (III), wherein, in the polydimethylsiloxanes, the average ratio of the sum of units of the formulae Ia and Ib to the sum of units of the formulae II and III is in the range from 0.5 to 500, the average ratio of units II to III in the range of 1.86 to 100, and the polydimethylsiloxanes have an average amine number of ≧0.01 mequiv/g, 2) at least 1 part by weight of one or more silicone resins, and 3) at most 5 parts by weight of water.