Abstract:
Binder mixtures crosslinkable by radiation comprising as component A a product obtained by reaction of an epoxy compound with more than one epoxide group per molecule with at least one carboxylic acid in a molar ratio of epoxide groups to carboxyl groups of 1:0.5-0.9 and subsequent reaction of the reaction product with at least one unsaturated isocyanatocarbamate esters and as component B a product obtained by reaction of an epoxy compound with more than one epoxide group per molecule with at least one olefinic unsaturated carboxylic acid in a molar ratio of epoxide groups to carboxyl groups of 1:>>1 and subsequent reaction of the reaction product with at least one polybasic carboxylic acid or anhydride(s) thereof, components A and B being present in a weight ratio of 3:1 to 1:3 useful for the product of superior photo-resists and protective lacquers.
Abstract:
Novel hardening agents for epoxy compounds which are produced by reaction of polyalkylene, polyether amines having a mean molecular weight of 148 to 5,000 with di and/or polyepoxy compounds to a preliminary product, the ratio of the hydrogen atoms possibly remaining after reaction with monoepoxy compounds and bound to nitrogen and which are capable of reaction with epoxide groups, to epoxide groups of diepoxy compounds or polyepoxy compounds in the range of 1:1.4 to 6, and reaction of this preliminary product with a primary or secondary amine, the employed amine or amine mixture being used in an amount such that the ratio of epoxide groups capable of reaction to hydrogen atoms attached to nitrogen is 1:2 to 10.
Abstract:
The invention relates to a security document (10) having a carrier substrate (1) and at least one first film element (2) which is fixed to the carrier substrate (1) and shows a first optically variable effect generated by a diffractive first relief structure, wherein the security document (10) furthermore has at least one first printing ink layer (5) which is applied in a region-wise fashion onto the at least one first film element, and at least one second film element (3), and to a method for the production, of the security document (10).
Abstract:
The invention concerns a process for the production of a multi-layer body, wherein the multi-layer body includes at least two functional layers on a top side of a carrier substrate, which are structured in register relationship with each other, by a procedure whereby an underside of the carrier substrate is prepared in such a way that in a first region there results a transparency for a first exposure radiation and in at least one second region there results a transparency for at least one second exposure radiation different therefrom in register relationship with the first region, the underside is successively exposed with the first and the at least one second exposure radiation and the first exposure radiation is used for structuring a first functional layer and the at least one second exposure radiation is used for structuring at least one second functional layer on the top side of the carrier substrate.
Abstract:
The invention relates to a security document (10) having a carrier substrate (1) and at least one first film element (2) which is fixed to the carrier substrate (1) and shows a first optically variable effect generated by a diffractive first relief structure, wherein the security document (10) furthermore has at least one first printing ink layer (5) which is applied in a region-wise fashion onto the at least one first film element, and at least one second film element (3), and to a method for the production, of the security document (10).
Abstract:
The invention concerns a security element in the form of a multi-layer film body having a volume hologram layer with two different items of optical information and a process for the production of such a security element.
Abstract:
The invention concerns an individualized security document (1) and a method of individualizing a security document. The individualized security document (1) has a number of pages (12 to 15) which are connected together by means of stitching or adhesive. In addition integrated into the security document by means of stitching and adhesive is a single-layer or multi-layer film body (2) which is provided with an individualized optical security element and which is folded in the region of the stitching or adhesive. The fold divides the film body (2) into a first part (21) on which the individualized optical security element is arranged and a second, preferably flap-shaped part (22) which is permanently connected to a plastic body having at least one machine-readable security element, wherein the at least one machine-readable security element has an electronic circuit for RF identification.
Abstract:
The invention concerns an object of value (15), for example a credit card, banknote or identity card. The object of value (15) has a carrier layer (1), at least one first layer (21) containing a moiré pattern and at least one second layer (31, 33) containing a moiré analyzer for the moiré pattern of the first layer (21). That second layer is arranged above or beneath the first layer in a fixed position relative to the first layer in such a way that the moiré pattern of the first layer (21) and the moiré analyzer of the second layer (31, 33) are permanently optically superimposed at least in region-wise fashion, whereby a permanent moiré image is generated.
Abstract:
The invention relates to a method of generating a laser marking in a security document by means of at least one laser beam, the security document having at least one laser-markable layer and also at least one reflecting layer which overlaps at least partly with the at least one laser-markable layer and has opaque regions. The at least one reflecting layer has at least one transparent region and, at least visually, is not significantly altered by the laser treatment of the laser-markable layer.
Abstract:
Described is a process for the production of a multi-layer body comprising a first layer which is formed from micro-optical structures and which at least partially covers over one or more further layers having image regions and/or effect regions which produce an optical effect, wherein the micro-optical structures are arranged in register relationship with the image regions and/or effect regions. The micro-optical structures (6a, 6b) as well as the image regions and/or effect regions are applied by means of intaglio printing. There are also described a multi-layer body produced with that process and a security document having that multi-layer body.