摘要:
Compositions polymerizable by ultraviolet irradiation which contain photopolymerizable monomers possessing at least one polymerizable carbon-carbon multiple bond and monoketals of the formula ##STR1## as photoinitiators. The compositions have a particularly long shelf life and show very little yellowing after curing by irradiation.
摘要:
The invention relates to special acetals of benzoin compounds which act as photoinitiators, and to a technically simple manufacturing process involving the reaction of an appropriate .alpha.- or .beta.-hydroxyketone with an .alpha.,.beta.-olefinically unsaturated ether in the presence of an acid catalyst. The acetals are particularly suitable for use as photoinitiators in the preparation of photopolymer printing plates.
摘要:
The preparation of .alpha.-carbonylphosphine oxides by oxidizing an .alpha.-hydroxyalkyl phosphine oxide with an organic hydroperoxide or of an organic peroxy acid in the presence of a compound of a Group IV to Group VIII metal in the periodic table, and novel .alpha.-hydroxybenzyl phosphine oxides..alpha.-Carbonylphosphine oxides are used as photoinitiators for polymerizable compositions.
摘要:
The preparation of .alpha.-carbonylphosphine oxides by oxidizing an .alpha.-hydroxyalkyl phosphine oxide with an organic hydroperoxide or of an organic peroxy acid in the presence of a compound of a Group IV to Group VIII metal in the periodic table, and novel .alpha.-hydroxybenzyl phosphine oxides. .alpha.-Carbonylphosphine oxides are used as photoinitiators for polymerizable compositions.
摘要:
A system and method for parameter-driven value conversion in a client/server architecture is presented. A request is received from a client computer for an application service. The request includes a parameter defining a data field for a conversion and a conversion ID that specifies the conversion. A lookup is performed of a converter in a conversion registry based on the conversion ID, and the converter is then called to perform the conversion of the data field defined by the parameter in the request, to generate a converted data field. Finally, the converted data field is returned to the protocol handler.
摘要:
A platelet-shaped PVD metallic effect pigment having first and second outer faces, the platelet-shaped PVD metallic effect pigment having at least one PVD layer, the at least one PVD layer including elemental metal with clusters of elemental metal and metal oxide. The amounts of elemental metal in the first outer face and in the second outer face of the PVD metallic effect pigment are different from one another and they differ by at least 10 atom %. The disclosure further relates to a method for producing these platelet-shaped PVD metallic effect pigments, and to their use.
摘要:
A system and method for parameter driven data format conversion in a client/server architecture are disclosed. A format conversion framework is provided in a protocol layer between the client and the server. The format conversion framework passes a format conversion identifier (ID) with a request from the client from the client to the server. A conversion module is looked up by the format conversion framework based on the format conversion ID, the conversion module providing a conversion routine. The format conversion framework then executes the conversion routine on a result returned from the server to the client based on the request, the conversion routine converting a format of the result into a format used by the client.
摘要:
A navigation system includes a display for displaying at least a part of a digital map. The navigation system includes a navigation database which stores any text and/or symbol(s) associated with a signpost independently from a background of the signpost. The text and/or symbol(s) and the background may be retrieved from the navigation database and displayed as a signpost image in the displayed part of the digital map.
摘要:
A system and method for parameter-driven value conversion in a client/server architecture is presented. A request is received from a client computer for an application service. The request includes a parameter defining a data field for a conversion and a conversion ID that specifies the conversion. A lookup is performed of a converter in a conversion registry based on the conversion ID, and the converter is then called to perform the conversion of the data field defined by the parameter in the request, to generate a converted data field. Finally, the converted data field is returned to the protocol handler.
摘要:
The present invention relates to a method for producing diamond layers, wherein firstly, in a first growing step, diamond is grown on a growing surface of a off axis or a off-axis heterosubstrate in such a way that a texture width, in particular a polar and/or azimuthal texture width, of a diamond layer produced during the growth decreases with increasing distance from the substrate and then, in a second growing step, diamond is grown in such a way that the texture width of the diamond layer remains substantially constant as the distance from the substrate further increases, and lattice planes of the substrate being inclined by an angle greater than zero with respect to the growing surface.