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1. 发明授权

US5061603A Photocurable compositions 失效
标题翻译：可光成分
公开(公告)号：US5061603A
公开(公告)日：1991-10-29
申请号：US448966
申请日：1989-12-12
申请人： John Hamilton , Peter Dickinson
发明人： John Hamilton , Peter Dickinson
IPC分类号： C07D213/89 , C08F8/30 , G03F7/033 , G03F7/038 , G03F7/105
CPC分类号： C07D213/89 , G03F7/033 , G03F7/038 , G03F7/0388 , G03F7/105
摘要： Photopolymerizable polyvinyl alcohols including a group of formula ##STR1## wherein R.sub.1 represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aralkyl group, or a hydrogen atom; R.sub.2 represents a substituted or unsubstituted alkyl group, a primary, secondary or tertiary amino group, a cyano, hydroxy or nitro group, a halogen or hydrogen atom or, together with the pyridine ring to which it is attached, part of a quinolyl group; R.sub.3 represents a chlorine or hydrogen atom or, together with the benzene ring to which it is attached, part of a naphthyl group; and X.sup.- represents an anion, and photocurable compositions for producing screen printing stencils including such polyvinyl alcohol derivatives. Compositions of the invention show high light sensitivity with low levels of photocrosslinkable groups grafted to the polyvinyl alcohol.

2. 发明授权

US4548890A Water-based photopolymerizable compositions and their use 失效
标题翻译：水性光聚合组合物及其用途
公开(公告)号：US4548890A
公开(公告)日：1985-10-22
申请号：US595448
申请日：1984-03-30
申请人： Peter Dickinson , Michael Ellwood
发明人： Peter Dickinson , Michael Ellwood
IPC分类号： C08G59/00 , C08F2/50 , C08G59/68 , C08G85/00 , C08L61/00 , C09D163/00 , G03F7/038 , G03C1/68
CPC分类号： C08L61/00 , C08G59/68 , C08G85/00 , G03F7/0385 , Y10S430/11 , Y10S430/113 , Y10S430/115 , Y10S430/122 , Y10S430/123 , Y10S430/126 , Y10S430/127
摘要： Aqueous dispersions comprising water, a cationically curable compound, and a photosensitive onium salt, and preferably other ingredients such as sensitizers, fillers, and plasticizers, are useful for making printing screens, lithographic plates, and printed circuit resists. After exposure, the un-cured composition is easily removed by washing with water.
摘要翻译：包含水，阳离子可固化化合物和光敏鎓盐，以及优选其它成分如敏化剂，填充剂和增塑剂的水分散体可用于制备印刷丝网，平版印刷版和印刷电路抗蚀剂。曝光后，通过用水洗涤容易地除去未固化的组合物。

3. 发明授权

US4564581A Process of preparing screen stencil using diazo photosensitive compositions with acidic p-H indicator 失效
标题翻译：使用酸性p-H指示剂的重氮感光组合物制备筛网模板的方法
公开(公告)号：US4564581A
公开(公告)日：1986-01-14
申请号：US629759
申请日：1984-07-13
申请人： John R. Curtis , John D. Renwick
发明人： John R. Curtis , John D. Renwick
IPC分类号： G03F7/105 , G03F7/12
CPC分类号： G03F7/12 , G03F7/105
摘要： The invention provides photosensitive compositions useful in the production of screen printing stencils which comprise, in addition to the usual ingredients, also an indicator to show when a layer formed from the said composition has been isolubilized by exposure to actinic light.
摘要翻译：本发明提供了用于生产丝网印刷模版的光敏组合物，除了通常的成分之外，还包括显示何时由所述组合物形成的层通过暴露于光化光而被除去的指示剂。

4. 发明授权

US4499176A Photopolymerizable composition for producing screen printing stencils 失效
标题翻译：用于生产丝网印刷模版的光聚合组合物
公开(公告)号：US4499176A
公开(公告)日：1985-02-12
申请号：US421271
申请日：1982-09-22
申请人： John R. Curtis , John D. Renwick
发明人： John R. Curtis , John D. Renwick
IPC分类号： C08F2/20 , C08F2/44 , C08F2/48 , C08F2/50 , G03F7/12 , G03C7/12 , G03C1/71
CPC分类号： G03F7/12 , C08F2/48 , Y10S430/11 , Y10S430/112 , Y10S430/12
摘要： Aqueous compositions useful in making stencils for screen printing by the direct, indirect or direct/indirect method comprise a photopolymerizable monomer, a water-insoluble photoinitiator, a tertiary amine accelerator, a water-soluble colloid, water, and a water-miscible organic solvent.
摘要翻译：用于通过直接，间接或直接/间接方法制造用于丝网印刷的模板的水性组合物包括光聚合单体，水不溶性光引发剂，叔胺促进剂，水溶性胶体，水和水混溶性有机溶剂。

5. 发明授权

US4499175A Photopolymerizable materials for use in producing screen printing stencils 失效
标题翻译：用于生产丝网印刷模板的可光聚合材料
公开(公告)号：US4499175A
公开(公告)日：1985-02-12
申请号：US421270
申请日：1982-09-22
申请人： John R. Curtis , John D. Renwick
发明人： John R. Curtis , John D. Renwick
IPC分类号： C08F2/48 , C08F290/06 , G03F7/12 , G03C7/12 , G03C1/70 , G03F5/00
CPC分类号： C08F290/06 , C08F2/48 , G03F7/12 , Y10S430/12 , Y10S430/123
摘要： Aqueous compositions useful in making stencils for screen printing comprise a solution of an unsaturated prepolymer dispersed in an aqueous solution of a colloid, and a photo-initiator. Such compositions may be coated on suitable support sheets to produce photosensitive sheets useful for making stencils for screen printing by the direct, indirect, or direct/indirect methods.
摘要翻译：用于制造丝网印刷用模板的水性组合物包含分散在胶体水溶液中的不饱和预聚物和光引发剂的溶液。可以将这样的组合物涂覆在合适的支撑片上以产生用于通过直接，间接或直接/间接方法制造用于丝网印刷的模板的感光片。

6. 发明授权

US4659649A Photosensitive systems showing visible indication of exposure 失效
标题翻译：显示曝光可见指示的感光系统
公开(公告)号：US4659649A
公开(公告)日：1987-04-21
申请号：US605252
申请日：1984-04-30
申请人： Peter Dickinson , Michael Ellwood
发明人： Peter Dickinson , Michael Ellwood
IPC分类号： G03F7/105 , G03C1/68 , G03C1/727
CPC分类号： G03F7/105 , Y10S430/122 , Y10S430/123 , Y10S430/126
摘要： The invention provides new compositions which change color on exposure to actinic radiation and contain a photosensitive onium, e.g. iodonium or sulphonium, salt and a dyestuff which changes color when protonated. The compositions may also include a resin, especially a resin curable by the onium salt when the latter is exposed, and preferably an epoxy resin. The compositions are useful especially as coatings, e.g. for making screen stencils or for producing lithographic printing plates.
摘要翻译：本发明提供了新的组合物，其在光化辐射暴露时改变颜色，并含有光敏鎓，例如，碘或锍，盐和染料，当质子化时颜色变化。组合物还可以包括树脂，特别是当其暴露时由鎓盐可固化的树脂，优选环氧树脂。组合物特别适用于涂层，例如用于制造屏幕模板或用于生产平版印刷版。

7. 发明授权

US4418138A Photopolymerizable materials for use in producing stencils for screen printing 失效
标题翻译：用于生产丝网印刷用模板的可光聚合材料
公开(公告)号：US4418138A
公开(公告)日：1983-11-29
申请号：US411565
申请日：1982-08-25
申请人： John R. Curtis
发明人： John R. Curtis
IPC分类号： C08F2/00 , C07D335/16 , C08F2/10 , C08F2/50 , G03F7/031 , G03F7/12 , G03C1/68
CPC分类号： C07D335/16 , C08F2/50 , G03F7/031 , G03F7/12 , Y10S430/123
摘要： Aqueous compositions useful in making stencils for screen printing comprise one or more unsaturated monomers, a tertiary amino compound, a colloid, and a water-soluble, carboxy- or sulpho-alkyleneoxy-thioxanthone photoinitiator. When coated on to a suitable support sheet and dried, photosensitive sheets are obtained useful for making stencils for screen printing by the direct, indirect, or direct/indirect methods.
摘要翻译：用于制造丝网印刷用模板的水性组合物包含一种或多种不饱和单体，叔氨基化合物，胶体和水溶性羧基或磺基 - 亚烷基氧基 - 噻吨酮光引发剂。当涂覆到合适的支撑片材上并干燥时，获得用于通过直接，间接或直接/间接方法制造用于丝网印刷的模版的感光片。

8. 发明授权

US4900617A Masking compositions 失效
标题翻译：掩蔽组合物
公开(公告)号：US4900617A
公开(公告)日：1990-02-13
申请号：US181421
申请日：1988-04-14
申请人： Jonathan H. Smith
发明人： Jonathan H. Smith
IPC分类号： C09D5/00
CPC分类号： C09D5/008 , Y10T428/252
摘要： This invention relates to compositions for forming opaque, abrasion-removable masks on substrates. The compositions, which include a texture modifying amount of solid or hollow microspheres, have enabled depression or embossing of the surface of the printed substrates to be obscured so that they cannot be seen by the naked eye. The compositions can be based on plastisols, pigmented polymer solution, or pigmented aqueous emulsions. The invention further provides substrates, for example lottery tickets, having abrasion-removable masks formed from compositions of the invention.

9. 发明授权

US4459416A Water soluble thioxantone photoinitiators 失效
标题翻译：水溶性噻吨酮光引发剂
公开(公告)号：US4459416A
公开(公告)日：1984-07-10
申请号：US411570
申请日：1982-08-25
申请人： John R. Curtis , Peter E. Heaton
发明人： John R. Curtis , Peter E. Heaton
IPC分类号： C07D335/16 , C08F2/00 , C08F2/50 , G03F7/031
CPC分类号： C07D335/16 , C08F2/50 , G03F7/031
摘要： The invention provides novel thioxanthone photoinitiators having the formula: ##STR1## wherein R.sub.1 alkyl, alkoxy, alkylthio, halogeno, nitro, amino, alkyl-amino, di-alkyl-amino, hydroxy alkyl-amino, alkanoylamino, benzoylamino, N-alkanoyl-N-benzoyl-amino, sulphonamido, or acetyl, R.sub.2 is alkylene, A is --COOH, --SO.sub.3 H, --OSO.sub.3 H, or --O--CO--X--COOH (where X is such that HO--CO--X--COOH is a di- or tri-carboxylic acid of up to 8 carbon atoms), n is 0, 1, or 2 and m is 1 or 2, provided that when A is --COOH, m is 2, the aforesaid alkyl, alkoxy, alkanoyl, and alkylene residues containing up to 4 carbon atoms each, as the free acid or as a salt thereof. The photoinitiators may advantageously be used in water-based photopolymerizable compositions, e.g. for use in screen stencil production.
摘要翻译：本发明提供具有下式的新型噻吨酮光引发剂：其中R 1为烷基，烷氧基，烷硫基，卤代，硝基，氨基，烷基氨基，二烷基氨基，羟基烷基 - 氨基，烷酰基氨基，苯甲酰氨基，N-烷酰基 - N-苯甲酰氨基，磺酰氨基或乙酰基，R 2为亚烷基，A为-COOH，-SO 3 H，-OSO 3 H或-O-CO-X-COOH（其中X为HO-CO-X-COOH为最多8个碳原子的二羧酸或三羧酸），n为0,1或2，m为1或2，条件是当A为-COOH时，m为2，前述烷基，烷氧基，烷酰基，和各自含有至多4个碳原子的亚烷基残基，作为游离酸或其盐。光引发剂可有利地用于水基光聚合组合物，例如，用于丝网印刷生产。

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