| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Printing screen coating method and apparatus | US191773 | 1980-09-29 | US4363289A | 1982-12-14 | Rudolf Gasser |
| Flat printing screens can be coated on one or both sides by the method and apparatus. A liquid is applied to a screen by one or two squeegees secured to carriages moved up and down on rubber sprocket belts driven by a motor. The speed of application can be adjusted according to the desired thickness of the coating and the viscosity of the liquid. The squeegees are mutually offset somewhat in height to reliably prevent the liquid from running out when the squeegees are not in motion. Application takes place regularly and reproducibly even in the case of a thick coating. The drive by means of rubber sprocket belts and a counterweight ensure vibration-free movement of the squeegees along the screen. | ||||||
| 162 | Print screen stencil and its production | US241697 | 1981-03-09 | US4362808A | 1982-12-07 | Jacob A. Otthofer, Jr. |
| A print screen stencil for printing with corrosive printing compositions is disclosed. The stencil comprises a screen fabric having open mesh areas in a predetermined pattern adapted to allow the passage of a printing composition to a substrate positioned beneath the fabric and filled or closed mesh areas adapted to prevent the passage of a printing composition, the filled mesh areas comprising a resist coating encasing the mesh in the filled areas, the resist coating comprising cross-linked acrylic polymer intimately dispersed in fused vinyl resin. | ||||||
| 163 | Method and an apparatus for thin film formation | US154997 | 1980-05-30 | US4325995A | 1982-04-20 | Yoshitaka Tamura; Shizuo Ishitani; Takashi Shigemura |
| A method and an apparatus for thin film formation using off-set printing techniques, wherein a film-forming material is coated uniformly on a platform, which material is then transferred onto an object on which a thin film is to be formed. Coating the material on the platform is carried out by moving on the platform a roll coater which includes a distributing roller and a coating roller and which feeds the film-forming material onto the platform and by rotating the coating roller in a direction at which slippage in engagement between the coating roller and the platform is always involved in relation with the movement of the roll coater. | ||||||
| 164 | Process for producing photo-curable composite materials useful for preparing stencils | US56640 | 1979-07-11 | US4302528A | 1981-11-24 | Takezo Sano; Haruo Inoue; Akihiro Furuta |
| An improved process for producing a photo-curable composite material using a liquid photo-curable resin, which comprises holding a liquid photo-curable resin with a screen material between two films, at least one of the films having photo-transmitting properties, and passing the films holding the liquid photo-curable resin and the screen material through a gap (e.g. between two rollers). The process of the present invention can produce photo-curable composite materials useful for preparing various stencils for screen printing, textile printing, or the like at a low cost and with less production of defects. | ||||||
| 165 | Print screen stencil | US60456 | 1979-07-25 | US4286518A | 1981-09-01 | Jacob A. Otthofer, Jr. |
| A print screen stencil for printing with corrosive printing compositions is disclosed. The stencil comprises a screen fabric having open mesh areas in a predetermined pattern adapted to allow the passage of a printing composition to a substrate positioned beneath the fabric and filled or closed mesh areas adapted to prevent the passage of a printing composition, the filled mesh areas comprising a resist coating encasing the mesh in the filled areas, the resist coating comprising cross-linked acrylic polymer intimately dispersed in fused vinyl resin. | ||||||
| 166 | Color imaging devices having integral color filter arrays | US71962 | 1979-09-04 | US4266017A | 1981-05-05 | Thomas W. Martin; M. Akram Sandhu |
| A color imaging device which comprises an adhesive layer between (a) means for sensing radiation comprising a planar array of charge-handling semiconductive photosensors, and (b) superimposed filter means for controlling access of radiation to the sensing means comprising a transparent polymer layer capable of receiving dyes such as heat transferable dyes; the adhesive layer comprising a polyester selected from the group consisting of (1) polyesters having recurring carboxylate units of which at least 80 mole percent are terephthalate units, and recurring alkylene units derived from glycols of which at least 40 mole percent are ether alkylene units, with the proviso that either (a) the recurring alkylene units comprise at least 60 mole percent ether alkylene units or (b) either the recurring carboxylate units comprise at least 2 mole percent pyromellitic tetracarboxylate units or at least 10 mole percent of linear aliphatic dicarboxylate units having at least 8 carbon atoms, and that when at least 10 mole percent of the carboxylate units are said linear aliphatic dicarboxylate units, the total of the mole percent of lower aliphatic dicarboxylate units of the recurring carboxylate units plus the mole percent of ether alkylene units of the recurring alkylene units is at least 60 mole percent and (2) polyesters having recurring alkylene units and recurring carboxylate units wherein at least 30 mole percent of the carboxylate units are alicyclic dicarboxylate units and wherein the remaining carboxylate units are nonlinear aromatic dicarboxylate units. A method for preparing such devices, color filter arrays useful therein and imaging elements useful therein are also described. | ||||||
| 167 | Screen printing stencils using novel compounds and compositions | US99617 | 1979-12-03 | US4254194A | 1981-03-03 | Richard E. Merrill; Arthur A. Massucco |
| Screen printing stencils are prepared by affixing to a printing screen substrate an indicia-defining, ultraviolet-sensitive film and cross-linking the film by exposure to ultraviolet radiation. The coating compositions used to form the film comprise copolyacrylate/polyurethane block copolymers, in which the copolyacrylate blocks are copolymers of at least one hydroxy-containing acrylate and at least one acrylate or methacrylate which may be partially substituted with bromine, ultraviolet initiators and cross-linking monomers. Screen printing stencils are provided which are compatible with both water-based and oil-based inks. The disclosed screen printing stencils are used in improved screen-printing methods. | ||||||
| 168 | Photographic screen stencil printing process | US533034 | 1974-12-16 | US4199359A | 1980-04-22 | John W. Weigl; Carl Brynko |
| A novel screen stencil comprising a screening material coated with a photo-swellable material, as well as a method of preparing and process of using same, are disclosed. | ||||||
| 169 | Dry film screen stencil and method of making | US805493 | 1977-06-10 | US4176602A | 1979-12-04 | Phyllis A. Feddersen |
| A method of making a relatively thick dry film stencil for uses such as depositing solder paste through a screen chase. A stencil consisting of four mil thick dry film photoresist is formed by passing the photoresist layers through a roller and laminating them onto a support screen. The outer protective film coatings are removed and the film photoresist developed. It is then placed in a chase with the developed film face on the bottom. The solder paste is then squeegeed through the screen and deposited on a desired part. An alternate method of making the stencil uses two layers of dry film photoresist laminated together with the protective film coating removed. The stencil is cut to the size needed and exposed. Using a hydraulic press, the stencil is then connected to a screen in a chase by applying a pressure of 250 psi at 300.degree. F. for 10 seconds. | ||||||
| 170 | Method of making decorative panels | US677363 | 1976-04-15 | US4093754A | 1978-06-06 | Robert C. Parsons |
| In a method of making decorative panels, a liquid masking material is applied to a surface of a panel, and is cured to form a substantially solid masking layer on the surface. A pattern comprising at least one unmasked area and at least one masked area is formed in the masking layer either simultaneously with the application of the liquid masking material or subsequent to the curing step. The surface of the panel is then treated to render the unmasked areas of the surface of the panel visually distinguishable from the masked areas. In one embodiment of the invention the masking layer is elastomeric and the surface of the panel is treated by sandblasting, after which the masking layer is removed. The entire process may then be repeated to provide a dual density effect. In another embodiment of the invention an asphaltum masking layer is applied to a mirror forming layer on a panel, after which the portions of the mirror forming layer corresponding to the unmasked areas are chemically removed. | ||||||
| 171 | Stencil exposure seal combination | US733951 | 1976-10-19 | US4083301A | 1978-04-11 | James A. Black |
| Stencil exposure apparatus having a flexible compressible peripheral seal element suspended by a plurality of radiating tension straps in a selected configuration between a translucent stencil pattern support surface on one side, and a stencil fabric layer retained in a stencil frame or chase on the other side, there being a suction connection for the space enclosed by said seal, said translucent surface, and said stencil fabric.In one apparatus embodiment disclosed, the peripheral seal is a traveling seal suspended on a stencil frame carriage which is selectively shiftable relative to the translucent surface and supports the stencil chase.In another apparatus embodiment disclosed, the tension straps are shiftable to vary the dimensions of the area enclosed by the peripheral seal. | ||||||
| 172 | Process of screen manufacture and use for coding credit cards | US451997 | 1974-03-18 | US3987725A | 1976-10-26 | John R. Scantlin |
| A process for forming credit cards in which encoded information is screen printed on a plastic sheet. In the process, a photographic film is placed in contact with a surface having film exposure means positioned with respect to the surface. Locating means are formed on the film and the film is positioned on the surface through the locating means. Thereafter, small predetermined coded spaces are exposed on the film and the exposed film is developed to provide coded darkened spaces corresponding to the exposed coded spaces.The developed film is placed against a silk screen having first positioning means which coact with the locating means on the film to position the film with respect to the silk screen. The screen is coated with a light-sensitive emulsion and light is shone on the screen through the film to expose the emulsion except at the coded darkened areas.The screen is washed to provide a coded screen having openings corresponding to the exposed coded spaces on the film. The coded screen is placed in a silk screen press with second positioning means corresponding in placement to the first positioning means. The screen is placed in the press by alignment of the second positioning means with the first positioning means. Ink is passed through the openings in the screen onto a credit card sheet to form screen printed coded spaces on the sheet.The encoded spaces on the sheet may be printed by using multiple printings. | ||||||
| 173 | Positive or negative developable photosensitive composition | US308121 | 1972-11-20 | US3961961A | 1976-06-08 | Larry D. Rich |
| A positive and negative developable photosensitive composition including a photopolymerizable monomer, photoinitiator, and a blend of polymers, one an acid soluble amino containing polymer, the other a compatible, acid insoluble, film-forming, polymer. The composition, which can be developed positively with dilute aqueous acid or negatively with dilute base, is useful in silk screen printing and as a photoresist composition in general. | ||||||
| 174 | Light-sensitive stencil printing material with porous support and cover sheets | US32578073 | 1973-01-22 | US3891441A | 1975-06-24 | TSUJI NOBUO; HASEGAWA EIICHI |
| A light-sensitive stencil printing material comprising a porous support having impregnated therein a photopolymerizable composition containing a liquid photopolymerizable monomer and a photopolymerization initiator, and cover films provided on both sides of said support.
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| 175 | Photopolymerization of oxetanes | US29884872 | 1972-10-19 | US3835003A | 1974-09-10 | SCHLESINGER S |
| POLYMERIZATION OF POLYMERIZABLE COMPOSITIONS COMPRISING MONOMERS WHICH MAY BE OXETANES OR MIXTURES THEREOF WITH MONOMERIC OR PREPOLYMERIC EPOXIDES IS EFFECTED BY MIXING SUCH COMPOSITIONS WITH RADIATION-SENSITIVE AROMATIC DIAZONIUM SALTS WHICH DECOMPOSE UPON APPLICATION OF ENERGY SUCH AS ELECTROMAGNETIC RADIATION TO RELEASE LEWIS ACID TO INITIATE POLYMERIZATION OF SAID MONOMERS.
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| 176 | Photopolymerization of epoxy monomers | US3708296D | 1968-08-20 | US3708296A | 1973-01-02 | SCHLESINGER S |
| A PROCESS FOR POLYMERIZING EPOXY MONOMERS WHICH COMPRISES MIXING WITH EPOXY MONOMERS PHOTOSENSITIVE ARYLDIAZONIUM COMPOUNDS AND THEREAFTER SUBJECTING THE RESULTING MIXTURE TO ACTINIC RADIATION. THE ARYLDIAZONIUM COMPOUND DECOMPOSE TO PRODUCE POLYMERIZATION INITIATOR IN THE FORM OF A LEWIS ACID, THEREBY CATALYZING THE POLYMERIZATION OF THE MONOMER TO THE POLYMER. EXAMPLES OF PHOTOSENSITIVE COMPOUNDS USEFUL IN THE PROCESS ARE PNITROBENZENEDIAZONIUM HEXAFLUOROPHOSPHATE, P-N-MORPHOLINOBENZENEDIAZONIUM HEXAFLUOROARSENATE, AND 2,4-DICHLOROBENZENEDIAZONIUM HEXACHLOROANTIMONATE.
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| 177 | Complex film for obtaining silk screen stencils | US3676128D | 1967-06-08 | US3676128A | 1972-07-11 | LEOPOLD HENRI; POMATHIOS JACQUES |
| A COMPLEX FILM FOR PRODUCING SILK SCREEN STENCILS INCLUDES THREE LAYERS SUPERPOSED AND JOINED RELATIVE TO ONE ANOTHER, A BACKING LAYER, AND EMULSION LAYER, AND A TRANSPARENT LAYER INTERPOSED THEREBETWEEN CONSTITURED THE THREE LAYERS, THE BACKING LAYER IS JOINED TO THE TRANSPARENT LAYER ONLY TEMPERARILY AND IS EASILY REMOVED OR PEELED THEREFROM.
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| 178 | Reproduction method | US3674483D | 1969-04-24 | US3674483A | 1972-07-04 | VRANCKEN MARCEL NICOLAS; BRINCKMAN ERIC MARIA; HEUGEBAERT FRANS CLEMENT |
| A METHOD OF RECORDING INFORMATION USING A RECORDING MATERIAL HAVING A WATER-PERMEABLE RECORDING LAYER CONSISTING ESSENTIALLY OF A CONTINUOUS PHASE OF AT LEAST ONE PROTEINACEOUS HYDROPHILIC COLLOID BINDER HAVING DISTRIBUTED THERETHROUGH FINELY DIVIDED PARTICLES OF A HYDROPHILIC INORGANIC PHOTOCONDUCTIVE COMPOUND IN ONE EMBOIDIMENT AND FINELY DIVIDED PARTICLES OF A NON-PHOTOCONDUCTIVE HYDROPHILIC PIGMENT, PLUS AN ORGANIC PHOTOCONDUCTIVE DYE, IN ANOTHER EMBODIMENT, WHEREIN THE RECORDING LAYER IS IMAGE-WISE EXPOSED TO ACTIVE ELECTROMAGNETIC RADIATION AND THEN DEVELOPED BY CONTACTING THE SAME WITH AN AQUEOUS LIQUID TO PRODUCE A VISBILE CHANGE IN THE RECORDING LAYER BY PENETRATION OR REMOVAL OF THE WATER-PERMEABLE UNEXPOSED REGIONS OF THE LAYER BY THE AQUEOUS LIQUID. THE RATIO BY WEIGHT OF HYDROPHILIC PARTICLES TO HYDROPHILIC COLLOID IS ABOUT 1:1 TO 5:1 AND THE PROPORTION OF THE ORGANIC PHOTOCONDUCTIVE DYE IS AT LEAST ABOUT 0.05% BY WEIGHT OF THE HYDROPHILIC NON-PHOTOCONDUCTIVE PARTICLES.
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| 179 | Radiation-sensitive elements and etch processes using the same | US3637383D | 1969-07-14 | US3637383A | 1972-01-25 | HALLMAN ROBERT W; KURTZ GARY W |
| Radiation-sensitive elements comprising a pair of layers of dissimilar inorganic materials capable of interreacting when subjected to impinging electromagnetic actinic radiation with the formation of an interreaction product or products corresponding to the areas exposed to such radiation, and further comprising at least one underlying layer of a third material which is sought to be discretely and selectively etched according to a pattern or image projected upon the sensitive element. The portions of the radiation-sensitive element which have not been exposed to actinic radiation act as a resist material during etching of underlying layers, such that a relief representation of the original image projected upon the sensitive element is obtained by a simple process consisting principally of exposure to actinic radiation followed by a one-step or two-step etch operation.
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| 180 | Method for making a cylindrical film screen | US3616278D | 1968-07-26 | US3616278A | 1971-10-26 | JANSEN LODEWIJK |
| Starting with an apertured cylindrical matrix an electrically insulating material is applied over the matrix to close the matrix apertures. A layer of metal is then deposited electrically on the matrix to form a metal film screen. A layer of transparent plastic material is then applied onto the metal film screen and the film screen of metal and transparent plastic is then removed from the matrix. The starting matrix may be expanded by mandrel or the like prior to the closing of the matrix openings and to carrying out the other steps and the outer diameter of the matrix is then reduced prior to removing the film screen therefrom. The starting cylindrical matrix may also comprise a thin-walled apertured sleeve which is deformed into a kidney-shaped section to reduce its outer diameter prior to removing the film screen therefrom.
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