| Patent application number | Description | Published |
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| 20080238086 | SECURITY DOCUMENT WITH A TRANSPARENT PATTERN AND A PROCESS FOR PRODUCING A SECURITY DOCUMENT WITH A TRANSPARENT PATTERN - A security document comprising a plurality of self-supporting polymeric films and layers therebetween and thereon, said plurality of self-supporting polymeric films comprising a non-transparent microvoided axially stretched self-supporting polymeric film exclusive of foam and having a permanent transparent pattern; and a process for producing a security document with a permanent transparent pattern comprising the step of: image-wise application of heat optionally supplemented by the application of pressure to a security document precursor comprising a plurality of self-supporting polymeric films and layers therebetween and thereon, said plurality of self-supporting polymeric films comprising a non-transparent microvoided axially stretched self-supporting polymeric film exclusive of foam. | 10-02-2008 |
| 20080241435 | NON-TRANSPARENT MICROVOIDED BIAXIALLY STRETCHED FILM, ITS USE IN SYNTHETIC PAPER AND AN IMAGE RECORDING ELEMENT COMPRISING SAME - A non-transparent microvoided biaxially stretched self-supporting non-laminated polymeric film, the film comprising linear polyester as a continuous phase and dispersed uniformly therein an amorphous high polymer comprising at least one chain-polymerized block with a higher glass transition temperature than the glass transition temperature of the continuous phase and isotactic poly(4-methyl-1-pentene), wherein the linear polyester consists essentially of aromatic dicarboxylate and aliphatic dimethylene monomer units, wherein the combined concentration of the uniformly dispersed amorphous high polymer and isotactic poly(4-methyl-1-pentene) in the film is 5 to 35% by weight; the use of the above-described non-transparent microvoided biaxially stretched film in synthetic paper; an image recording element comprising the above-described non-transparent microvoided biaxially stretched film; and a process for producing a transparent pattern comprising the step of: image-wise application of heat optionally supplemented by the application of pressure to the above-described non-transparent microvoided biaxially stretched film. | 10-02-2008 |
| 20080241769 | NON-TRANSPARENT MICROVOIDED AXIALLY STRETCHED FILM, PRODUCTION PROCESS THEREFOR AND PROCESS FOR OBTAINING A TRANSPARENT PATTERN THEREWITH - A film consisting essentially of a continuous phase linear polyester matrix having dispersed therein a non-crosslinked random SAN-polymer and dispersed or dissolved therein at least one ingredient from the group of ingredients consisting of inorganic opacifying pigments, whitening agents, colorants, UV-absorbers, light stabilizers, antioxidants and flame retardants, wherein the film is white, microvoided, non-transparent and axially stretched; the linear polyester matrix has monomer units consisting essentially of at least one aromatic dicarboxylic acid, at least one aliphatic diol and optionally at least one aliphatic dicarboxylic acid; and the weight ratio of the linear polyester to the non-crosslinked SAN-polymer is in the range of 2.0:1 to 19.0:1, wherein one of the said at least one aliphatic dimethylene monomer units is selected from the group consisting of neopentylene and 1,4-cyclohexanedimethylene in a concentration of 30 mole % or less of all aliphatic dimethylene monomer units; the use of the film as or in synthetic paper; an image recording element comprising the film; a process for the preparing of the non-transparent microvoided axially stretched film; and a process for obtaining a transparent pattern therewith. | 10-02-2008 |
| 20080251181 | NON-TRANSPARENT MICROVOIDED AXIALLY STRETCHED FILM, PRODUCTION PROCESS THEREFOR AND PROCESS FOR OBTAINING A TRANSPARENT PATTERN THEREWITH - A film consisting essentially of a continuous phase linear polyester matrix having dispersed therein a non-crosslinked random SAN-polymer and dispersed or dissolved therein at least one ingredient from the group of ingredients consisting of inorganic opacifying pigments, whitening agents, colorants, UV-absorbers, light stabilizers, antioxidants and flame retardants, wherein the film is white, microvoided, non-transparent and axially stretched; the linear polyester matrix has monomer units consisting essentially of at least one aromatic dicarboxylic acid, at least one aliphatic diol and optionally at least one aliphatic dicarboxylic acid; and the weight ratio of the linear polyester to the non-crosslinked SAN-polymer is in the range of 2.0:1 to 19.0:1, wherein one of said at least one aromatic dicarboxylate monomer units is isophthalate and said isophthalate is present in said polyester matrix in a concentration of 15 mole % or less of all the dicarboxylate monomer units in said linear polyester matrix; the use of the non-transparent microvoided axially stretched film as a synthetic paper; an image recording element comprising the non-transparent microvoided axially stretched film; a process for the preparing of the non-transparent microvoided axially stretched film; and a process for obtaining a transparent pattern therewith. | 10-16-2008 |
| 20080254396 | PROCESS FOR PRODUCING A NON-TRANSPARENT MICROVOIDED SELF-SUPPORTING FILM - A process for producing a non-transparent microvoided self-supporting film comprising the steps of: i) mixing at least one linear polyester having together monomer units consisting essentially of terephthalate, isophthalate and aliphatic dimethylene with the molar ratio of isophthalate monomer units to terephthalate monomer units being at least 0.02 to provide a linear polyester matrix; at least one amorphous high polymer with a higher glass transition temperature than the glass transition temperature of said linear polyester matrix and/or at least one crystalline high polymer having a higher melting point than the glass transition temperature of said linear polyester matrix; and optionally at least one ingredient from the group of ingredients consisting of inorganic opacifying pigments, whitening agents, UV-absorbers, light stabilizers, antioxidants, flame retardants and colorants in a kneader or an extruder; ii) forming the mixture produced in step i) in a thick film followed by quenching; iii) longitudinally stretching the thick film at a stretching force of >4 N/mm | 10-16-2008 |
| 20080254397 | PERMANENT TRANSPARENT PATTERN IN A NON-TRANSPARENT MICROVOIDED AXIALLY STRETCHED SELF-SUPPORTING POLYMERIC FILM AND A PROCESS FOR OBTAINING SAME - A permanent transparent pattern in a non-transparent microvoided axially stretched self-supporting polymeric film; a layer configuration comprising the permanent transparent pattern in a non-transparent microvoided axially stretched self-supporting polymeric film exclusive of foam; a non-transparent microvoided thermally transparentizable axially stretched self-supporting polymeric film; and a process for obtaining a permanent transparent pattern comprising the step of: image-wise application of heat optionally supplemented by the application of pressure to the non-transparent microvoided axially stretched self-supporting polymeric film. | 10-16-2008 |
| 20090239057 | PRINTABLE PAPER; PROCESS FOR PRODUCING PRINTABLE PAPER; AND USE THEREOF - A printable paper comprising a water-resistant support having two optionally subbed sides and a single layer on at least one of said optionally subbed sides, wherein said single layer has no substantial compositional variation, has a layer thickness of at least 3 μm, a pore volume of at least 1.2 mL/m | 09-24-2009 |
| 20110133359 | NON-TRANSPARENT MICROVOIDED AXIALLY STRETCHED FILM, PRODUCTION PROCESS THEREFOR AND PROCESS FOR OBTAINING A TRANSPARENT PATTERN THEREWITH - Disclosed is a process for preparing a non-transparent microvoided axially stretched film including i) mixing a linear polyester having monomer components consisting essentially of an aromatic dicarboxylic acid, an aliphatic diol and optionally an aliphatic dicarboxylic acid, a non-crosslinked random SAN-polymer and one or more additional ingredients to produce a mixture, ii) forming the mixture produced in step i) in a thick film followed by quenching; iii) stretching the thick film at a temperature between the glass transition temperature of the SAN-polymer and the glass transition temperature of said linear polyester to at least twice the initial length, and (iv) further stretching the film at an angle substantially 90° to the previous stretching process to at least twice the initial length and at 90° C. or below. | 06-09-2011 |
