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31. 发明授权

EP0757629B1 IMAGING MEDIUM AND PROCESS 失效
标题翻译：记录材料和记录处理
公开(公告)号：EP0757629B1
公开(公告)日：1999-01-20
申请号：EP95917688.4
申请日：1995-04-25
申请人： POLAROID CORPORATION
发明人： GAUDIANA, Russell, A. , HADDOCK, Robert, W. , MARSHALL, John, L. , TAKIFF, Larry, C. , TELFER, Stephen, J. , YOUNG, Michael, A.
IPC分类号： B41M5/30 , G03C1/73 , G03F7/004
CPC分类号： B41M5/30 , G03C1/73 , G03F7/0045
摘要： A process for producing an image uses an imaging medium comprising an acid-generating layer or phase comprising a mixture of a superacid precursor, a sensitizing dye and a secondary acid generator, and a color-change layer comprising an image dye. The sensitizing dye has first and second forms, the first form having substantially greater substantial absorption in a first wavelength range than the second form. The superacid precursor is capable of being decomposed to produce superacid by radiation in a second wavelength range, but is not, in the absence of the sensitizing dye, capable of being decomposed by radiation in the first wavelength range. The secondary acid generator is capable of acid-catalyzed thermal decomposition by unbuffered superacid to form a secondary acid. While at least part of the sensitizing dye is in its first form, the medium is imagewise exposed to radiation in the first wavelength range, thereby causing, in the exposed areas of the acid-generating layer, the formation of unbuffered superacid. The medium is then heated to cause, in the exposed areas, acid-catalyzed thermal decomposition of the secondary acid generator and formation of the secondary acid. The components of the acid-generating and color-change layers or phases are then mixed so that the secondary acid causes a change in color of the image dye, and the sensitizing dye is converted to its second form. The acid-generating layer or phase desirably includes a cosensitizer which is a reducing agent less basic than the secondary acid generator.

32. 发明公开

EP0883835A1 PROTECTIVE OVERCOAT USEFUL FOR ENHANCING THE RESISTANCE OF A PRINTING PLATE PRECURSOR TO AMBIENT HUMIDITY 失效
标题翻译：防护，抗寒性印刷板前体环境湿度可用于增加
公开(公告)号：EP0883835A1
公开(公告)日：1998-12-16
申请号：EP97949481.0
申请日：1997-11-20
申请人： POLAROID CORPORATION
发明人： BI, Daoshen , HARDIN, John, M.
IPC分类号： B32B33 , B41C1 , B41N1 , B41N3 , G03F7
CPC分类号： B32B33/00 , B41C1/10 , G03F7/092 , G03F7/11 , Y10S428/913 , Y10S430/151 , Y10T428/24802 , Y10T428/31786
摘要： The present invention provides a lithographic printing plate precursor element capable of being used on a printing press immediately after imagewise exposure without the requirement of bath processing. A preferred embodiment has in order (a) a substrate; and (b) a photoresist photohardenable upon imagewise exposure to actinic radiation, the photoresist comprising (i) a macromolecular organic binder; (ii) a photopolymerizable ethylenically unsaturated monomer having at least one terminal ethylenic group capable of forming a high polymer by chain-propagated polymerization, and (iii) a polymerization initiator activatable by actinic radiation; and (c) an on-press removable polyphosphate-containing overcoat. The polyphosphate-containing overcoat imparts the plate with a non-tacky surface and an enhanced resistance to the adverse influence of ambient humidity.

33. 发明授权

EP0759193B1 VINYLBENZYL THYMINE MONOMERS AND POLYMERS AND PRODUCTS PREPARED FROM SAME 失效
标题翻译：乙烯基苯THYMINMONOMERE和聚合物及其制品生产的商品
公开(公告)号：EP0759193B1
公开(公告)日：1998-09-09
申请号：EP95918966.3
申请日：1995-05-10
申请人： POLAROID CORPORATION
发明人： GRASSHOFF, J., Michael , TAYLOR, Lloyd, D. , WARNER, John, C.
IPC分类号： G03F7/038 , G03F7/027 , C08F12/32
CPC分类号： C07D239/54 , G03F7/027 , G03F7/038 , G03F7/0388
摘要： Multifunctional vinylbenzyl and vinylphenyl pendant thymine (and uracil) groups are disclosed. The monomers can be used for the production of polymers useful in photoresist and other compositions as a function of the cross-linking reactivity of the pendant groups. Images in polymer are provided by exposure to actinic radiation (e.g., UV), containing such polymer and by solvent removal of non-exposed regions.

34. 发明公开

EP0855934A1 WABENFÖRMIGER KATALYSATORTRÄGER 失效
标题翻译：蜂窝状催化剂载体
公开(公告)号：EP0855934A1
公开(公告)日：1998-08-05
申请号：EP96933365.0
申请日：1996-09-24
申请人： SÜDCHEMIE AG
发明人： ENGELHARDT, Thomas , HÄHN, Reinhard
IPC分类号： B01D53 , B01J21 , B01J23 , B01J35 , B01J37 , C07C2 , C07C67 , C07C69
CPC分类号： C07C2/66 , B01D53/8687 , B01D2255/30 , B01J21/08 , B01J21/16 , B01J23/52 , B01J23/58 , B01J35/04 , B01J37/0009 , C07C67/055 , C07C2521/16 , Y02A50/2327
摘要： The description relates to a honeycomb catalyst base primarily consisting of SiO2 which comprises at least one calcined and subsequently acid-leached silicate laminate with a pore volume of some 0.1 to 1.2 ml/g and a specific area (to BET) of some 20 to 400 m2/g and additionally some 10 to 50 wt.%. amorphous silicic acid or amorphous aluminium silicate, and has a web width of some 0.1 to 5 mm, in which the ratio between web width and interstice is about 1:5 to 5:1. The catalyst base can be produced by making at least one finely divided silicate laminate with a specific area of over 10 m2/g, preferably about 40 to 500 m2/g, into a paste with a liquid, preferably water, extruding this into comb-like mouldings, drying the mouldings and calcining them at a temperature of some 50 to 200 °C below the sintering temperature of silicon dioxide or aluminium silicate and subjecting the calcined mouldings to an acid treatment. The catalyst base can be charged with at least one catalytically active element from group (1A, 1B, 2A, 2B, 6A) and/or (8) of the periodic system. The catalyst can be used to produce unsaturated esters from olefines, acids and oxygen in the gas phase, to purify organically polluted exhaust air and to alkylate aromatics, especially for producing ethyl benzole from benzole and ethylene.

35. 发明公开

EP0855066A1 LARGE KERNEL FILTERING USING A FIXED-SIZE BLOCK PROCESSOR 失效
标题翻译：与利用块固定大小的处理器GROSS多核滤波
公开(公告)号：EP0855066A1
公开(公告)日：1998-07-29
申请号：EP96938741.0
申请日：1996-10-31
申请人： POLAROID CORPORATION
发明人： WOBER, Munib, A.
IPC分类号： H04N1 , G06T5
CPC分类号： G06T5/20 , H04N19/176 , H04N19/48 , H04N19/60 , H04N19/80
摘要： A method and system for filtering a digital image with a filter larger than the hardware capabilities of the imaging system is workable by subdividing the large filter into a number of small filters which can each be individually processed by the system. The method includes the steps of: segmenting the digital image into data blocks of a predetermined size; overlapping adjacent data blocks by a predetermined number of pixels; providing a preselected filter kernel; generating small filters by processing a preselected group of components of the filter kernal; applying each of the small filters to each overlapped data block to produce component data blocks; and merging and saving the component data blocks into filtered data blocks according to a predetermined specific criteria, whereby the filtered data blocks represent the filtered digital image.

36. 发明授权

EP0731757B1 THERMOGRAPHIC RECORDING FILM INCLUDING IMPROVED WASHCOAT 失效
标题翻译：具有改进的涂层的热敏记录层
公开(公告)号：EP0731757B1
公开(公告)日：1998-04-08
申请号：EP95902667.5
申请日：1994-11-21
申请人： POLAROID CORPORATION
发明人： DOMBROWSKI, Edward, J. , JONES, Robert, L.
IPC分类号： B41M5/40
CPC分类号： B41M5/42 , B41M5/423 , B41M5/426 , B41M5/44 , B41M2205/04
摘要： This invention relates to thermographic recording films including both a topcoat and a washcoat. The washcoat comprises at least one quaternary ammonium salt including at least one hydroxyl functional group, and a compound containing at least two epoxide moieties. The subject washcoat, in conjunction with the topcoat, reduces printer head build-up and streaking of the printed image film while simultaneously increases the anti-stat and slip properties of the film.

37. 发明公开

EP0832447A1 PHOTOREACTION QUENCHERS IN ON-PRESS DEVELOPABLE LITHOGRAPHIC PRINTING PLATES 失效
标题翻译：光化学LöschnerIN DENAUF机显影平版印刷版
公开(公告)号：EP0832447A1
公开(公告)日：1998-04-01
申请号：EP96912967.0
申请日：1996-04-19
申请人： POLAROID CORPORATION
发明人： BI, Daoshen , FITZGERALD, Maurice, J. , KEARNEY, Frederick, R. , LIANG, Rong-Chang , SCHWARZEL, William, C. , YEH, Tung-Feng
IPC分类号： G03F7
CPC分类号： G03F7/092 , G03F7/002 , G03F7/027 , G03F7/36
摘要： The present invention provides a lithographic printing plate comprising a substrate and a photocurable polymeric photoresist, such as those based on free-radical initiated photocuring mechanisms. To constrain detrimental and undesired activity of excess free radicals, an embodiment of the printing plate is further provided with a free-radical regulating system. In a particular embodiment, the free-radical regulating system is provided as an overcoat, the overcoat being a light-transmissive overcoat and comprising a polymer having a pendant free-radical trapping group. A particular polymer for the overcoat has formula (a) wherein, m is from approximately 20 % by weight to approximately 95 % by weight, and n is from approximately 0 % by weight to approximately 75 % by weight. Capable of deactivating free-radicals actinically generated in the photoresist subsequent to exposure, the polymer is soluble in fountain or ink solution and incompatible with the photoresist.

38. 发明公开

EP0824822A1 MULTIPLE DENSITY LEVEL STOCHASTIC SCREENING SYSTEM AND METHOD 失效
标题翻译：系统和方法提供多级密度随机加网
公开(公告)号：EP0824822A1
公开(公告)日：1998-02-25
申请号：EP96911746.0
申请日：1996-04-12
申请人： POLAROID CORPORATION
发明人： THORNTON, Jay, E.
IPC分类号： H04N1
CPC分类号： H04N1/648 , H04N1/40087
摘要： An image rendering system for generating discrete tone image data for representing continuous tone image data to be rendered by a rendering device. The continuous tone image data includes a plurality of pixel values each associated with a pixel. The rendering device renders a colorant in a plurality of colorant densities. The image rendering system comprises a threshold array, preferably stochastic, a colorant density array (27, 62), and a colorant density supply arrangement. The threshold array comprising a plurality of threshold values. The colorant density array comprises a plurality of array elements, each associated with one of said pixel values and one of said threshold values. Each of the array elements identifies a particular one of a plurality of colorant density values each associated with one of the colorant densities rendered by said rendering device. The colorant density supply arrangement, for each pixel, uses the pixel value associated with the pixel and a threshold value from the threshold array to identify an array element of the colorant density array (27, 62), whose colorant density value will be rendered by the rendering device.

39. 发明公开

EP0818027A1 BRIGHTNESS ADJUSTEMENT OF IMAGES USING DIGITAL SCENE ANALYSIS 失效
标题翻译：与使用场景分析亮度控制
公开(公告)号：EP0818027A1
公开(公告)日：1998-01-14
申请号：EP96906569.0
申请日：1996-02-23
申请人： POLAROID CORPORATION
发明人： BOYACK, James, R. , JUENGER, Andrew, K.
IPC分类号： H04N1 , G06T1 , G06T5 , G09G5
CPC分类号： G06T5/009 , G06T5/40 , G06T2207/20021
摘要： A system and method for processing a digital image signal which represents an image can be made to optimally map luminance values versus a tonal reproduction capability of a destination application. Specifically, the system includes a device for partitioning the image into blocks, then combining certain blocks into sectors. An average luminance block value is determined for each block and a difference is determined between the maximum and minimum average luminance block values for each sector. If the difference exceeds a predetermined threshold value, then the sector is labeled as an active sector and an average luminance sector values is obtained from maximum and minimum average luminance block values. All weighted counts of active sectors of the image are plotted versus the average luminance sector values in a histogram, then the histogram is shifted via some predetermined criterion so that the average luminance sector values of interest will fall within a destination window corresponding to the tonal reproduction capability of a destination application.

40. 发明公开

EP0777936A1 COMPENSATED PHASE LOCKED LOOP FOR GENERATING A CONTROLLED OUTPUT CLOCK SIGNAL 失效
标题翻译：补偿相位LOOP FOR A控制时钟输出信号的生产
公开(公告)号：EP0777936A1
公开(公告)日：1997-06-11
申请号：EP95932362.0
申请日：1995-08-31
申请人： POLAROID CORPORATION
发明人： SHENK, Edwin, K.
IPC分类号： H04N1 , H03L7
CPC分类号： H03L7/183
摘要： A method and apparatus for generating a controlled output clock signal (PCLK) which is frequency and phase referenced to an input signal is disclosed. The compensation is programmable to allow an external source, such as a processor, to download a compensation factor to create a variable frequency phase locked loop. A separated programmable divider (78') is downloaded with a complementary value to adjust the varied frequency signal to the frequency of the input signal, supplied to the phase locked loop. This allows the phase locked loop to be varied about a wide range of frequencies without having to adjust the controlled oscillator (66') and the loop filter (64'). The method and phase locked loop disclosed are particularly directed to the generation of selected pixel clocks within a computer printing system.

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