摘要:
A process for producing a polymer/metal or polymer/semiconductor composite having an adhesive layer between the polymer and the metal or between the polymer and the semiconductor in which a layer of at least two different chemical elements is applied to the metal or semiconductor by vapor-deposition or cathode sputtering, then selectively or partially removing at least one chemical element of this layer in an etching process, and then applying the polymer.
摘要:
The invention relates to a process for producing microstructure elements having structure depths of from several .mu.m to the mm region by imagewise irradiation of polymers with X-rays, where the polymers employed are aliphatic polyesters.
摘要:
A process for the production of micromoldings having a high aspect ratio by imagewise irradiation of a polymer with high-energy, parallel radiation from an X-ray source employs, as the polymer, a homo- or copolyoxymethylene.
摘要:
A process for the production of microstructure elements having structure depths of from several .mu.m into the mm range by imagewise irradiation of polymers with X-rays and removal of the areas of the polymers which have been irradiated imagewise, comprises applying the polymers, before the imagewise irradiation, to an electroconductive substrate in a layer thickness of from several .mu.m into the mm range by melting under pressure, thus firmly anchoring the polymers.The process according to the invention is particularly suitable for the production of microstructure elements having structure depths of from 3 to 2000 .mu.m and lateral dimensions of less than 10 .mu.m.
摘要:
A process for the production of micromoldings having a high aspect ratio by imagewise irradiation of a polymer with high-energy, parallel radiation from an X-ray source employs, as the polymer, a copolymer comprising SO.sub.2 and one or more ethylenically unsaturated organic compounds.
摘要:
A transport system, in particular an airport luggage transport system and a controller for the transport system are described. The transport system transports items to a predetermined destination on predefined transport routes via several branching locations. A master controller sets for each transported item a destination and a transport route, which are processed by one or more slave controllers. Each transported item is given an identification number that is identified by the slave controller. The master controller provides to the slave controller the destination associated with each identification number and associates with each destination at the branching locations a forwarding direction. Forwarding is processed by the slave controller without an interrogation of the master controller, based on the preset association at the branching locations.
摘要:
A workbench, in particular for welding and structural steel work, includes a frame assembly having opposing axial ends and including a pair of traverses respectively disposed at the axial ends, and a pair of spaced substantially parallel platforms for forming working surfaces for installation and placement of workpieces, with the working surfaces being expandable in all directions by retractable or detachably secured elements. One of the platforms is stationarily fixed on the traverses and the other one of the platforms is movably supported on the traverses for displacement in direction of the stationary platform. Extending laterally of the stationary platform is a support unit for attachment of accessories and including at least one support and a guide bar secured to the frame assembly and configured of polyhedral cross section for guiding the support in longitudinal direction.
摘要:
Cleaned or chemically pretreated metal surfaces are modified using aqueous solutions of amino-containing organic polymers, the metal surfaces thus modified being particularly suitable for coating by cathodic electrodeposition.
摘要:
A heat curable coating composition, particular for cathodic electrocoating, comprises(A) from 50 to 95% by weight of a chain or step growth polymerization product having functional groups and(B) from 50 to 5% by weight of a mixture of polymethylenepolyphenyl isocyanates which contains less than 25% of diphenylmethane diisocyanates.
摘要:
Polymeric reaction products are obtained by reactingI) prepolymers obtained fromA) polyoxyalkylenes which have an average molecular weight M.sub.n of from 140 to 10,000 and contain on average from 1.5 to 3.0a.sub.1) primary or secondary amino groups ora.sub.2) epoxy groupsper molecule andB) polymers which are based on conjugated dienes, have an average molecular weight M.sub.n of from 250 to 50,000 and contain on average from 1.5 to 3.0b.sub.1) primary or secondary amino groups orb.sub.2) epoxy groupsper molecule, the components (a.sub.1) and (b.sub.2) or (a.sub.2) and (b.sub.1) being reacted with one another so that from at least an amino equivalent excess to 3 amino equivalents of component (a.sub.1) or (b.sub.1) are present per epoxide equivalent of component (a.sub.2) or (b.sub.2),withII) at least one compound which forms free radicals.