Abstract:
In the production of an anticopy film serving for covering documents against copying, opaque, strip-like coverings are applied by printing to the individual layers of a transparent, multilayer film in a mutually offset arrangement in such a way that the film appears opaque in the plan view, but transparent in an inclined viewing direction. To this end, a film web is printed with the coverings in sections corresponding to the layers, and the sections are subsequently folded over to give the layers.
Abstract:
A thin X-ray amorphous aluminum nitride or aluminum silicon nitride film is produced on a surface by vaporization of aluminum or of aluminum and silicon by reactive sputtering or reactive magnetron sputtering under reduced pressure in a process gas atmosphere, so that a sputter gas results, and deposition of the aluminum nitride or of the aluminum silicon nitride from the sputter gas onto the said surface, resulting in the said thin X-ray amorphous aluminum nitride or aluminum silicon nitride film, by a process in which the said process gas atmosphere consists essentially of nitrogen and argon and one or more further noble gases selected from the group consisting of neon, krypton and xenon, the volume ratio of argon to the further noble gases being from 2:1 to 100:1 and the volume ratio of the further noble gases to nitrogen being from 2:1 to 10:1.
Abstract:
The present invention relates to films which are coated with at least two paint coats (2) (3), whereby the backing film (1) is coated with at least one radiation-hardenable paint coat (2) and at least one second paint coat (3), which can harden at least partially without radiation. The invention also relates to a method for producing said films and to their use for coating steel, aluminium and plastic substrates.
Abstract:
Electrode materials suitable for electrochemical cells containing a) a polymeric binder which is composed essentially of polyisobutene having a limiting viscosity number of from 551 to 661 g/cm.sup.3 and b) a solid which is capable of reversibly taking up or releasing lithium ions in an electrochemical reaction.
Abstract translation:适用于电化学电池的电极材料,其含有a)聚合物粘合剂,其基本上由特异粘度为551至661g / cm 3的聚异丁烯组成,以及b)能够以电化学方式可逆地吸收或释放锂离子的固体 反应。
Abstract:
A carrier for abrasion-resistant catalysts having a surface coated with high-fusion oxides, nitrides and/or carbides of at least one transition metal, or boron, of aluminum and/or of silicon or of combination of these compounds. The coating is carried out using physical vapor deposition techniques, such as evaporating coating ion plating or cathode sputtering. The layer thus produced consists of individual structures, such as stems and/or columns having different elevations which together produce a porous layer serving as an intermediate layer for the subsequent deposition of the catalytic material.
Abstract:
Sheet-like moldings or foils with anisotropic coefficients of thermal expansion are produced from extrudable thermoplastic polymer molding compositions by filling the thermoplastic polymer molding compositions with lamellar phyllosilicates whose diameter is in the range from 10 to 1000 nm and whose aspect ratio is in the range from 1:5 to 1:10 000 and extruding the filled thermoplastic polymer molding compositions, and then monoaxially or biaxially orienting the extrudate to give sheet-like moldings or foils.
Abstract:
A mixture which comprises a) from 5 to 50% by weight of a block copolymer A which comprises one or more oopolymer blocks (B/S)A each composed of from 65 to 95% by weight of vinylaromatic monomers and from 35 to 5% by weight of dienes and of a glass transtion temperature TgA in the range from 40° to 90° C. b) from 95 to 50% by weight of a block copolymer B which comprises at least one hard block S composed of vinylaromatic monomers and comprises one or more copolymer blocks (B/S)B each composed of from 20 to 60% by weight of vinylaromatic monomers and from 80 to 40% by weight of dienes and of a glass transition temperature TgB in the range from −70° to 0°C. c) from 0 to 45% by weight of polystyrene or of a block copolymer C other than A and B, and d) from 0 to 6% by weight of a plasticizer, and its use for production of shrink films.
Abstract translation:一种混合物,其包含a)5至50重量%的嵌段共聚物A,其包含一种或多种聚合物嵌段(B / S)A A,各自由65至95重量%的乙烯基芳族 单体和35至5重量%的二烯,玻璃化转变温度Tg A A在40℃至90℃的范围内。b)95至50重量%的嵌段共聚物 B,其包含至少一个由乙烯基芳族单体组成的硬块S,并且包含一个或多个共聚物嵌段(B / S)B,每个由20至60重量%的乙烯基芳族单体组成,80至 40重量%的二烯和玻璃化转变温度Tg B O>在-70℃至0℃的范围内。 c)0至45重量%的聚苯乙烯或除A和B之外的嵌段共聚物C,以及d)0至6重量%的增塑剂,以及其用于生产收缩膜的用途。
Abstract:
Improved cholesteric special-effect layers are obtainable by comminuting cholesteric layers. These cholesteric layers are produced by applying at least one layer of a reactive, pourable cholesteric mixture to a moving substrate, by casting, and forming a solid cholesteric layer.
Abstract:
An anticopying film or layer consists of a film or of a layer of transparent material having a large number of completely or partially nontransparent regions which are arranged distances apart and whose planes are arranged in about the same predetermined position relative to the surfaces of the film or of the layer so that, from a predetermined viewing angle onto the surfaces of the anticopying film, the latter is essentially transparent. The regions consist at least partially of photosensitive material which is converted by the action of radiation into nontransparent or reflecting material, it also being possible to provide, in the transparent plastics material, furrows or grooves in which the photosensitive material is present.
Abstract:
A magnetic recording medium comprises a nonmagnetic substrate and at least one ferromagnetic metal layer applied thereon and a protective layer formed on this metal layer and consisting of a compound which consists of an unfluorinated or partially fluorinated alkyl radical and a disulfide, hydroxyl or keto group.