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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 8147905 | Heat-sensitive recording material and production method thereof To provide a heat-sensitive recording material, including: a substrate; a heat-sensitive color developing layer on the substrate, the heat-sensitive color developing layer containing at least a leuco dye and a developer; and a protective layer on the heat-sensitive ... | 04/03/2012 |
| 7410551 | Method of hot marking, and a multilayer structure for implementing such a method The invention relates to a hot marking method enabling decoration to be made on an article, the method comprising the steps consisting in: supplying a multilayer structure comprising a layer of varnish that hardens under the effect... | 08/12/2008 |
| 7370808 | Method and system for manufacturing radio frequency identification tag antennas A method and system for manufacturing radio frequency identification (RFID) tag antennas is described. A casting surface is provided having at least one raised antenna pattern extending therefrom. The casting surface is coated at least in an area other than the at l... | 05/13/2008 |
| 7291658 | Radiation-curable inks for flexographic and screen-printing applications from multifunctional acrylate oligomers The present invention relates generally to radiation-curable ink formulations, and particularly, but not by way of limitation, to a family of radiation-curable ink formulations specifically for flexographic and screen printing applications. The inventive ink formula... | 11/06/2007 |
| 7192904 | Thermal recording material The present invention provides a heat-sensitive recording material comprising a substrate and a heat-sensitive recording layer provided thereon, the layer comprising a color forming system that combines an electron-donating colorless dye and an electron-accepting co... | 03/20/2007 |
| 7172991 | Integrated CD/DVD recording and labeling An integrated system for individually labeling a recording medium at the time that digital information is recorded thereon, by recording write data with a digital recorder on the read/write surface of the CD/DVD and recording image data by inducing visible color cha... | 02/06/2007 |
| 7169260 | Precalendering method, finishing method and apparatus for implementing the methods A paper or paperboard web (W) is precalendered. A web that has undergone earlier dewatering stages is calendered to attain a suitable surface for the coating process. The web is calendered (C) one-sidedly in such a manner that the absorption level of the second side... | 01/30/2007 |
| 7135432 | Direct thermographic materials with phenolic reducing agents Non-photosensitive direct thermographic materials comprise a reducing agent that is a specific ortho-amino-phenol, para-amino-phenol, or hydroquinone compound. These compounds can reduce silver(I) ion to metallic silver to produce a dense black silver image under th... | 11/14/2006 |
| 7087265 | Image developing device The invention relates to a device for developing latent or hidden images. The device includes a first substrate containing a hidden or latent image printed on a first surface thereof, wherein the image contains one or more chromogenic compounds. A second substrate h... | 08/08/2006 |
| 7081435 | Thermal recording medium The present invention is the thermally sensitive recording medium comprising a thermally sensitive color developing layer containing colorless or pale colored basic leuco dye and a color developing agent as a main components on a substrate, wherein said thermally se... | 07/25/2006 |
| 7060654 | Imaging media and materials used therein A coating includes an antenna uniformly distributed in both a matrix and a leuco-dye phase of the coating. A method for preparing an imaging material includes providing a powder having an activator and an antenna, dissolving the activator/antenna powder to form an a... | 06/13/2006 |
| 7049269 | Thermal recording material and production method thereof The present invention provides a thermal recording material comprising a plurality of layers including at least a thermal recording layer on a support that is characterized in that an intermediate layer composed of gelatin as a binder is provided between at least on... | 05/23/2006 |
| 7011037 | Changed condition indicator A device and method of making a device for indicating a change in condition is disclosed. A first embodiment is a device for indicating a transition from a frozen condition to a thawed condition is disclosed. The device includes a housing and a capsule. A first reac... | 03/14/2006 |
| 6989349 | Information recording-displaying card, image processing method using same, and image processor An information recording-displaying card, includes: a core sheet; and an over sheet bonded to the core sheet, including: a support including an amorphous polyester resin, and a reversible thermosensitive recording layer disposed on the support, including: an electro... | 01/24/2006 |
| 6969695 | Information recording-displaying card, image processing method using same, and image processor An information recording-displaying card, includes: core sheet; and over sheet bonded to core sheet, including: a support including an amorphous polyester resin, and a reversible thermosensitive recording layer on the support, including: an electron-donating colorin... | 11/29/2005 |
| 6780820 | Thermosensitive recording material A thermosensitive recording material comprising a support such as paper bearing thereon a first layer comprising multivoided particles and, disposed on the first layer, a thermosensitive recording layer is provided. ... | 08/24/2004 |
| 6743466 | Process for repairing coated substrate surfaces The invention relates to a process for repairing coated substrate surfaces comprising the following successive steps: a) optionally preparing a blemished area to be repaired, b) providing a backing film coated on one side with an uncured or at least pa... | 06/01/2004 |
| 6686313 | Thermographic recording material with improved image tone A monosheet black and white substantially light-insensitive thermographic recording material comprising a thermosensitive element and a support, the thermosensitive element containing a substantially light-insensitive organic silver salt and an organic re... | 02/03/2004 |
| 6660687 | CF sheets A carbonless copy assembly made up of at least one CB sheet and one CF sheet, the CF sheet having a color developer resin coating of less than 0.39 pounds per ream. A process for making the carbonless copy paper assembly comprising the steps of: spraying ... | 12/09/2003 |
| 6579829 | Developer composition and heat sensitive recording material The invention is a novel developer composition which comprises one or more phenol derivative of sulfonamide structure represented by the formula (1) and one or more constituents selected from a polyvalent metal compound, antioxidant and reducing agent and... | 06/17/2003 |
| 6558740 | Printing medium, production process thereof and image-forming process using the medium Disclosed herein is a printing medium comprising a substrate and an ink-receiving layer which comprises an alumina hydrate surface-treated with a coupling agent and is provided on the substrate.... | 05/06/2003 |
| 6515051 | Benzotriazole UV absorbers having enhanced durability Benzotriazole UV absorbers which are substituted at the 5-position of the benzo ring by an electron withdrawing group exhibit enhanced durability and very low loss rates when incorporated into automotive coatings. This is particularly the case when the 3-... | 02/04/2003 |
| 6468395 | Basecoated substrate for an inkjet recording sheet The inkjet recording sheet substrate of the present invention comprises a cellulosic sheet support, e.g., paper, having on at least one surface thereof a base coating comprising pigment and binder. The preferred pigment component is a 50/50 mixture of kao... | 10/22/2002 |
| 6447629 | Digital thermal printing process using reactive ink A method of digitally printing reactive ink contained in a heat meltable ink layer comprising dyes or pigments or other colorants, using a thermal printer. The ink layer comprises compounds with functional groups capable of reacting with active hydrogen, ... | 09/10/2002 |
| 6425971 | Method of fabricating devices incorporating microelectromechanical systems using UV curable tapes A method of fabricating devices incorporating microelectromechanical systems (MEMS) using UV curable tapes includes providing a silicon substrate 12 with a MEMS layer 14 arranged on one side of the substrate 12. A first UV curable tape 22 is applied to th... | 07/30/2002 |
| 6391824 | Process for the preparation of coated continuous sheets to be printed by impact-free heat printers, and sheet thus obtained A non-impact, thermal transfer printing sheet having a base sheet of fibrous paper or synthetic with or without a security device, coated with a composition comprising (1) lactone, spiropyrane coloration, or an iron metallic complexes that reacts with wea... | 05/21/2002 |
| 6372928 | Layer forming material and wiring forming method A layer forming material is a compound which has a structure of six-membered ring coordinated to Cu and containing Si, and of which general formula is represented by the following chemical formula: ##STR1## wherein X1 and X2 are elem... | 04/16/2002 |
| 6333070 | Method for reproducing on a flexible film reflection images which can be hot-transferred to a plurality of different materials The invention relates to a method for producing on a flexible film reflecting images which can be hot-transferred to a plurality of different materials, the method comprising a first processing step in which a polyester film is processed by a thermoplasti... | 12/25/2001 |
| 6329318 | Lamination and method for forming an information displaying label A lamination and method provide for an information displaying label with dual image receiving capabilities. The laminate includes a substrate with a thermally responsive coating in adhesive engagement with an overlying light transmissive protective layer.... | 12/11/2001 |
| 6306572 | Binders for thermographic materials A substantially light-insensitive black and white thermographic material including a support and a thermosensitive element, containing a substantially light-insensitive organic silver salt, a reducing agent therefor in thermal working relationship therewi... | 10/23/2001 |
| 6303539 | Printable sheets which forms duplicate copies and methods for producing and using same Business forms that provide duplicate images in heat fusing toner printers which comprise a base sheet and a thermosensitive, image-forming coating positioned on the base sheet followed by a top sheet, such as a label laminate. The thermosensitive, image-... | 10/16/2001 |
| 6281165 | Therochromatic ink covered article having image disposed thereon and method of making the same A thermochromatic ink covered article including a substrate, a thermochromatic ink layer disposed on the substrate, a polymer acrylic protective coating over said thermochromatic ink layer, and a design disposed at least partially in said protective coati... | 08/28/2001 |
| 6232266 | Heat-sensitive recording material There is disclosed a heat-sensitive recording material having a support and provided thereon a heat-sensitive recording layer mainly comprising a heat-sensitive recording component which forms a color by heating, the improvement wherein the heat-sensitive... | 05/15/2001 |
| 6184179 | Substantially thermographic recording materials with improved stability A thermographic recording material comprising a support and a thermosensitive element containing a substantially light-insensitive silver salt of an organic carboxylic acid, a reducing agent therefor in thermal working relationship therewith and at least ... | 02/06/2001 |
| 6162485 | Fingerprinting system and method A system for forming fingerprints comprises a substrate bearing a designated print image-forming area and a localized coating of pressure-sensitive microcapsules containing a substantially colorless, image-forming reactant in the form of a color former or... | 12/19/2000 |
| 6120968 | Photosensitive recording medium A photosensitive recording medium used to transfer and form an image onto an image-receiving medium, comprises a base material and formed thereon a photosensitive layer having a photosensitive material and an image-forming material, where the photosensiti... | 09/19/2000 |
| 6114282 | Thermal recording material and novel crystal of bisphenol S derivative A heat-sensitive recording material in which a heat-sensitive color-developing layer comprising, as the main components, a usually colorless or light-colored color former and a developer capable of developing the color former upon heating on a support, ch... | 09/05/2000 |
| 6103041 | Reactive ink printing process A method of printing an ink or meltable ink layer which comprises dyes or pigments or other colorants. The ink or ink melt layer comprises compounds with functional groups capable of reacting with active hydrogen, and compounds with functional groups cont... | 08/15/2000 |
| 6103661 | Diphenyl sulfone derivative and recording material prepared therefrom The present invention is directed to recording materials characterized in that the recording materials comprise at least one of diphenyl sulfone derivatives represented by the following general formula (I); ##STR1## wherein Y represents a linear or b... | 08/15/2000 |
| 6093678 | Spontaneously color changing type thermal sensitive recording medium A thermal sensitive recording medium which has a feature to change the color of recorded pattern slowly and spontaneously after development, and the recorded pattern which has several days passed can be easily distinguished from that of just after develop... | 07/25/2000 |
