摘要:
The present invention relates to binders for the preforming process to which textile structures are subjected when structural materials are produced by the RIM or RTM method, where the binder composed of an amorphous polyimide is spray applied in a solvent onto the textile structure or onto the textile, and is used as binder for the preforming process. The present invention further relates to a process for producing moldings made of fiber-reinforced composite materials.
摘要:
Process for producing fiber-reinforced composite materials, bya) molding a textile structure and then spray-applying a binder, or saturating the textile structure with a binder, or b) first spray-applying a binder to a textile structure, or saturating a textile structure with a binder, and then subjecting the material to forming and drying.
摘要:
Polyamides based on dicarboxylic acids and on diamines are produced in a batch process by 1) feeding the entire amount of monomer composed of dicarboxylic acids, of diamines, and, if appropriate, of further polyamide-forming monomers, in the desired stoichiometry, in a closed stirred-tank reactor, 2) heating the monomer mixture in the stirred-tank reactor, with stirring, and with setting of a certain pressure, to a desired reaction temperature for the production of a prepolymer, 3) if appropriate, completely or partially depressurizing the reaction mixture from stage 2), 4) if appropriate, carrying out further thermal treatment of the reaction mixture from stage 2) or 3), and 5) reacting the reaction mixture from stage 2), 3), or 4) in the melt in a vented extruder for further increase of the molecular weight, with discharge of water vapor, and without use of additional polyamide-forming monomers or of polyamides.
摘要:
Polyamides based on dicarboxylic acids and on diamines are produced in a batch process by 1) feeding the entire amount of monomer composed of dicarboxylic acids, of diamines, and, if appropriate, of further polyamide-forming monomers, in the desired stoichiometry, in a closed stirred-tank reactor, 2) heating the monomer mixture in the stirred-tank reactor, with stirring, and with setting of a certain pressure, to a desired reaction temperature for the production of a prepolymer, 3) if appropriate, completely or partially depressurizing the reaction mixture from stage 2), 4) if appropriate, carrying out further thermal treatment of the reaction mixture from stage 2) or 3), and 5) reacting the reaction mixture from stage 2), 3), or 4) in the melt in a vented extruder for further increase of the molecular weight, with discharge of water vapor, and without use of additional polyamide-forming monomers or of polyamides.
摘要:
A method for calibration is controlled using measurement technology of at least one device unit of a device system which includes a monitor for image processing and a standard light device. The monitor is calibrated, and the luminance is measured at the calibrated monitor and at a standard light device. The actual value of the luminance at the standard light device is compared with the value for the luminance of the monitor. If there is a difference, the standard light device receives a control signal to change the brightness or the contrast. This regulation is continued until no difference exists between the measured actual value at the standard light device and the reference value stored in the memory of the evaluation unit.
摘要:
An illustration illuminator has a leg arrangement and a frame connected to the leg arrangement and extending upwardly and at a slant rearwardly away from the leg arrangement. A support surface is arranged at the front side of the frame for supporting an illustration to be illuminated. A light assembly is connected to the frame remote from the leg arrangement for illuminating the support surface. The light assembly has lamps emitting light rays and further has a front end with an outlet via which the light rays exit and impinge on the support surface. The light assembly has a reflector arranged relative to the lamps such that the light rays emitted by the lamps pass through the outlet only after having been reflected at least once on the reflector.
摘要:
A method and a multispectral color coordination system simulates high-quality daylight spectra. Light is produced with disposed in groups. Each group emits light at different wavelengths within the daylight spectrum. The wavelength of the light emitted by each LED at different working temperatures and different PWM values is measured. The measurement results for each LED are stored in memory, with assignment to working temperatures and PWM values. The LEDs are actuated at values selected from the memory content, as a function of the light to be emitted by each group. The working temperature of each individual LED chip is constantly measured and compared with the values stored in memory with regard to the current working temperature, and, in case of deviation compensated for by recalculating the spectrum, taking into consideration the PWM values stored in memory for the working temperature, and actuating with these.
摘要:
Thermoplastic molding compositions comprising A) from 10 to 99% by weight of at least one thermoplastic polymer, B) from 0 to 50% by weight of B1) at least one highly branched or hyperbranched polycarbonate with an OH number of from 1 to 600 mg KOH/g of polycarbonate (to DIN 53240, Part 2), or B2) at least one highly branched or hyperbranched polyester of AxBy type, where x is at least 1.1 and y is at least 2.1, or a mixture of these, C) from 1 to 30% by weight of a flame retardant combination composed of, based on 100% by weight of C), C1) from 20 to 99% by weight of a halogen-containing epoxy resin, C2) from 1 to 80% by weight of an antimony oxide, D) from 0 to 60% by weight of other additives, where the total of the percentages of components A) to D) is 100%.
摘要翻译:热塑性模塑组合物,其包含A)10至99重量%的至少一种热塑性聚合物,B)0至50重量%的B1)至少一种高度支化或超支化的聚碳酸酯,OH值为1至600mg KOH / g聚碳酸酯(根据DIN 53240,第2部分)或B2)至少一种高度支化或超支化的A x B B y y y型聚酯,其中x在 至少1.1,y为至少2.1,或这些的混合物,C)1至30重量%的阻燃剂组合物,基于100重量%的C),C 1)20至99重量% 含卤素环氧树脂的重量,C2)1至80重量%的氧化锑,D)0至60重量%的其它添加剂,其中组分A)至D)的百分比的合计为 100%。
摘要:
An object oriented application framework is provided in which base classes are decoupled from derived classes by using attributes. Relationships between derived classes and attributes can be generated, and derive classes can be statically or dynamically instantiated at run time. By decoupling the base class from derived classes using instances of such attributes, a developer does not modify computer program code defining the base class when adding customized extensions to that base class. The framework includes a class factory that uses instances of attributes associated with elements to derive, at run time, extension classes. The attributes can be specified at run time to specify or to alter the run time behavior of the application. This framework also allows the application to conditionally instantiate an element based on its attributes.
摘要:
A method and a multispectral color coordination system simulates high-quality daylight spectra. Light is produced with LEDs disposed in groups. Each group emits light at different wavelengths within the daylight spectrum. The wavelength of the light emitted by each LED at different working temperatures and different PWM values is measured. The measurement results for each LED are stored in memory, with assignment to working temperatures and PWM values. The LEDs are actuated at values selected from the memory content, as a function of the light to be emitted by each group. The working temperature of each individual LED chip is constantly measured and compared with the values stored in memory with regard to the current working temperature, and, in case of deviation compensated for by recalculating the spectrum, taking into consideration the PWM values stored in memory for the working temperature, and actuating with these.