公开(公告)号：US06218574B1

公开(公告)日：2001-04-17

申请号：US09453081

申请日：1999-12-02

申请人： Shuchen Liu ,  Dacheng Gao ,  Jiangang Zhang

发明人： Shuchen Liu ,  Dacheng Gao ,  Jiangang Zhang

IPC分类号： C07C5142

CPC分类号： C07C51/43 ,  C07C55/02

摘要： The present invention relates to an aqueous phase process for purifying long-chain dicarboxylic acids from a liquid containing a long-chain dicarboxylic acid/or a salt thereof. The invention overcomes the disadvantages of low purity and high chroma of the product obtained by using the aqueous phase process of the prior art. Through the step of crystallizing the monosalt of long-chain dicarboxylic acid, the present process reduces effectively the content of such impurities as proteins and coloring materials in the product and obtains the long-chain dicarboxylic acid product having a total acid content of greater than 99 wt % and exhibiting a white appearance.

摘要翻译： 本发明涉及从含有长链二羧酸/或其盐的液体中纯化长链二羧酸的水相方法。 本发明克服了通过使用现有技术的水相方法获得的产品的低纯度和高色度的缺点。 通过使长链二羧酸的单晶结晶的步骤，本方法有效地降低产物中蛋白质和着色材料等杂质的含量，得到总酸含量大于99的长链二羧酸产物 重量％，呈现白色外观。

公开(公告)号：US4511640A

公开(公告)日：1985-04-16

申请号：US525927

申请日：1983-08-25

申请人： Shuchen Liu

发明人： Shuchen Liu

IPC分类号： C08L35/06 ,  C08L33/00 ,  C08L33/02 ,  C08L35/00 ,  G03F7/016 ,  G03F7/021 ,  G03F7/038 ,  G03C1/60 ,  G03F7/08

CPC分类号： G03F7/0212 ,  Y10S430/11 ,  Y10S430/111

摘要： An improved negative working photographic element is prepared by coating a suitable substrate with a photosensitive composition comprising a light sensitive diazonium salt and a binder composition comprising a polyvinyl acetate resin and a styrene/maleic acid half ester copolymer. Upon imagewise exposure of the element to actinic radiation through a suitable mask, the unexposed portions are removable with an aqueous developer.

摘要翻译： 通过用包含光敏重氮盐的光敏组合物和包含聚乙酸乙烯酯树脂和苯乙烯/马来酸半酯共聚物的粘合剂组合物涂覆合适的基材来制备改进的负性照相元件。 当通过适当的掩模将元件成像曝光于光化辐射时，未曝光部分可用水性显影剂除去。

公开(公告)号：US4248959A

公开(公告)日：1981-02-03

申请号：US967524

申请日：1978-12-07

申请人： William Jeffers ,  Douglas Seeley ,  Raimund J. Faust ,  Shuchen Liu

发明人： William Jeffers ,  Douglas Seeley ,  Raimund J. Faust ,  Shuchen Liu

IPC分类号： G03F7/016 ,  G03F7/20 ,  G03F7/08

CPC分类号： G03F7/2055 ,  G03F7/0166 ,  Y10S430/127 ,  Y10S430/146 ,  Y10S522/904

摘要： This invention relates to an improvement in a photochemical process for the preparation of printing plates wherein a printing plate comprising a photosensitive composition coated on a support is exposed to a pattern of laser light, the intensity of which light is modulated in accordance with an input source of information, and said printing plate is subsequently developed by removal from said support of that portion of the photosensitive coating composition which is not exposed to said pattern of laser light, the improvement comprising utilizing a pattern of laser light generated by a laser, and utilizing as a photosensitive composition a mixture consisting essentially of: (1) a negative-working condensate of a para-amino benzene diazonium compound present in an effective amount sufficient to sensitize said photosensitive composition to laser light, and (2) a colorant capable of absorbing light in the spectral range between about 450 -550 nm, said colorant selectively sensitizing the condensate to said laser light at a wavelength greater than about 450 nm, and being selected from the group consisting of azo, triarylmethane, xanthene and methine compounds.

摘要翻译： 本发明涉及一种用于制备印版的光化学方法的改进，其中将包含涂覆在载体上的感光组合物的印版暴露于激光图案，其光强度根据输入源 并且随后通过从未暴露于所述激光图案的光敏涂料组合物的该部分的所述载体上除去所述印刷板，其改进包括利用由激光产生的激光图案，并利用 作为感光性组合物，基本上由以下组成的混合物：（1）以足以使所述感光组合物对激光敏感的有效量存在的对氨基苯重氮化合物的负性缩合物，和（2）能够吸收的着色剂 在约450-550nm的光谱范围内的光，所述着色剂选择性地使c敏化 以大于约450nm的波长对所述激光进行衰减，并且选自偶氮，三芳基甲烷，呫吨和次甲基化合物。

公开(公告)号：US4618562A

公开(公告)日：1986-10-21

申请号：US686778

申请日：1984-12-27

申请人： John E. Walls ,  Shuchen Liu

发明人： John E. Walls ,  Shuchen Liu

IPC分类号： C08L31/00 ,  C08L31/04 ,  C08L33/00 ,  C08L33/02 ,  C08L33/24 ,  C08L35/06 ,  G03F7/016 ,  G03F7/021 ,  G03F7/038 ,  G03C1/60 ,  G03C1/54 ,  G03C1/94 ,  G03F7/08

CPC分类号： G03F7/021

摘要： An improved negative working photographic element is prepared by coating a suitable substrate with a photosensitive composition comprising an admixture of two light sensitive diazonium salts and a binder composition comprising a polyvinyl acetate resin and a styrene/maleic acid half ester copolymer. Upon imagewise exposure of the element to actinic radiation through a suitable mask, the unexposed portions are removable with an aqueous alkaline developer.

摘要翻译： 通过用包含两种光敏重氮盐的混合物的光敏组合物和包含聚乙酸乙烯酯树脂和苯乙烯/马来酸半酯共聚物的粘合剂组合物涂布合适的基材来制备改进的负性照相元件。 当通过合适的掩模将元件成像曝光于光化辐射时，未曝光部分可用含水碱性显影剂除去。

公开(公告)号：US5824448A

公开(公告)日：1998-10-20

申请号：US566764

申请日：1995-12-04

申请人： Shuchen Liu ,  Robert J. von Trebra

发明人： Shuchen Liu ,  Robert J. von Trebra

IPC分类号： G03F7/004 ,  C09J7/02 ,  C09J133/06 ,  G03F3/10 ,  G03F7/021 ,  G03F7/033 ,  G03F7/038 ,  G03F7/11 ,  G03F7/30 ,  G03C11/12

CPC分类号： G03F3/10

摘要： This invention relates to color proofing, or more particularly to an improved photographic element and transfer method of color proofing wherein a colored image is prepared by successively producing images of different colors from distinct color separation films onto a single receptor sheet. The photographic element has a support having a release surface, a colored photosensitive layer on the release surface and an adhesive layer on the colored layer. The adhesive layer comprises a thermally activated adhesive which is preferably a plasticizer in admixture with at least one copolymer selected from the group consisting of copolymers of methyl methacrylate and ethyl acrylate and copolymers of acrylic acid and acrylic esters having an acid number of from about 80 to about 100.

摘要翻译： 本发明涉及彩色打印，或更具体地涉及一种改进的照相元件和彩色打样的传送方法，其中通过从不同的分色膜将不同颜色的图像连续地制成到单个接收片上来制备着色图像。 照相元件具有一个具有释放表面的支撑件，在释放表面上的着色感光层和着色层上的粘合剂层。 粘合剂层包括热活化粘合剂，其优选为与至少一种共聚物混合的增塑剂，所述共聚物选自甲基丙烯酸甲酯和丙烯酸乙酯的共聚物，丙烯酸和丙烯酸酯的共聚物，其酸值为约80至 约100。

公开(公告)号：US5738970A

公开(公告)日：1998-04-14

申请号：US823766

申请日：1997-03-24

申请人： Shane Hsieh ,  Rusty Koenigkramer ,  Shuchen Liu ,  Richard Shadrach ,  David Siegfried ,  Wojciech Wilczak

发明人： Shane Hsieh ,  Rusty Koenigkramer ,  Shuchen Liu ,  Richard Shadrach ,  David Siegfried ,  Wojciech Wilczak

IPC分类号： G03F7/004 ,  G03F3/10 ,  G03F7/34 ,  G03C11/12

CPC分类号： G03F3/106

摘要： A negative-acting color proofing element comprising, sequentially, (i) a strippable, transparent cover sheet; (ii) a crosslinked layer, which comprises a polymer having phenolic groups; (iii) a color layer, which comprises an organic binder, a polymerizable monomer, a colorant, and an optional photoinitiator, (iv) a photoadhering layer, which comprises a polymerizable component having at least one ethylenically unsaturated group; a polymer comprising polyvinyl acetal and polyvinyl alcohol segments, having from about 1 to about 40 weight % polyvinyl alcohol content; and an optional photoinitiator, wherein least one of either the color layer or the photoadhering layer contains a photoinitiator; (v) a thermoplastic adhesive layer; and (vii) a receiver sheet. Preferably the polymerizable component and photoinitiator diffuse into the color layer during assembly of the element. An image is produced by laminating the photosensitive element to a receiver sheet; imagewise exposing the color layer and the photoadhering layer to actinic radiation through the transparent cover and crosslinked phenolic layer; peeling apart the receiver sheet and the transparent cover sheet, leaving exposed areas of the color layer attached to the receiver sheet via the photoadhering layer and adhesive layer and unexposed areas being removed with the cover sheet and the crosslinked phenolic layer, thereby forming a colored negative image on the receiver sheet. Preferably these image producing steps are repeated at least once wherein another photosensitive element having a different colorant is transferred via its photoadhering and adhesive layers to the negative image previously produced on the receiver sheet.

摘要翻译： 一种负面作用的着色元件，其顺序地包括（i）可剥离的透明覆盖片; （ii）交联层，其包含具有酚基的聚合物; （iii）着色层，其包含有机粘合剂，可聚合单体，着色剂和任选的光引发剂，（iv）光引发层，其包含具有至少一个烯属不饱和基团的可聚合组分; 包含聚乙烯醇缩醛和聚乙烯醇链段的聚合物，具有约1至约40重量％的聚乙烯醇含量; 和任选的光引发剂，其中所述着色层或所述光引发层中的至少一个含有光引发剂; （v）热塑性粘合剂层; 和（vii）接收片。 优选地，可聚合组分和光引发剂在元件组装期间扩散到着色层中。 通过将感光元件层压到接收片来制造图像; 通过透明盖和交联的酚醛层将彩色层和光致粘附层成像曝光到光化辐射; 剥离接收片和透明覆盖片，通过遮光层和粘合剂层将着色层的暴露区域附着到接收片上，并且用覆盖片和交联酚醛层除去未曝光的区域，由此形成着色的负片 图像在接收页。 优选地，这些图像产生步骤重复至少一次，其中具有不同着色剂的另一光敏元件经由其光粘合层和粘合剂层转移到先前在接收片上产生的负像。

公开(公告)号：US5246818A

公开(公告)日：1993-09-21

申请号：US394697

申请日：1989-08-16

申请人： Shuchen Liu

发明人： Shuchen Liu

IPC分类号： G03C5/18 ,  G03F3/10 ,  G03F7/023 ,  G03F7/32

CPC分类号： G03F7/322 ,  G03F3/10 ,  G03F7/0233 ,  Y10S430/11 ,  Y10S430/111

摘要： A developer composition for positive color proofing films containinga) sodium, potassium or ammonium octyl sulfate; sodium, potassium or ammonium lauryl sulfate; sodium decyl sulfate; or sodium tetradecyl sulfate; andb) sodium or potassium borate; andc) boric acid; andd) monobasic sodium or potassium phosphate; ande) sodium or potassium citrate; andf) sodium or potassium salicylate; andg) sodium, potassium or lithium benzoate; andh) sufficient water to formulate an effective developer.

公开(公告)号：US4692397A

公开(公告)日：1987-09-08

申请号：US802655

申请日：1985-11-27

申请人： Shuchen Liu

发明人： Shuchen Liu

IPC分类号： G03F7/016 ,  G03F7/30 ,  G03F7/32 ,  G03F7/08 ,  G03F7/26

CPC分类号： G03F7/32

摘要： A method of producing a light sensitive element wherein a substrate is coated with a photosensitive layer having a particular class of diazonium salts, a colorant and a polyvinyl acetal resin. Upon imagewise exposure it is developed with an aqueous composition of salts and surfactants in the absence of organic solvents.

摘要翻译： 一种制造感光元件的方法，其中基底涂覆有具有特定类别的重氮盐的感光层，着色剂和聚乙烯醇缩醛树脂。 在成像曝光时，它在没有有机溶剂的情况下用盐和表面活性剂的水性组合物显影。

公开(公告)号：US4486529A

公开(公告)日：1984-12-04

申请号：US967502

申请日：1978-12-07

申请人： William Jeffers ,  Douglas Seeley ,  Raimund J. Faust ,  Shuchen Liu

发明人： William Jeffers ,  Douglas Seeley ,  Raimund J. Faust ,  Shuchen Liu

IPC分类号： G03F7/016 ,  G03F7/20 ,  G03F7/08

CPC分类号： G03F7/2055 ,  G03F7/016 ,  Y10S430/146

摘要： This invention relates to an improvement in a photochemical process for the preparation of printing plates wherein a printing plate comprising a photosensitive composition coated on a support is exposed to a pattern of laser light, the intensity of which is modulated in accordance with an input source of information and said printing plate is subsequently developed by removal from said support of that portion of the photosensitive coating composition which is not exposed to said pattern of laser light, the improvement comprising utilizing a pattern of laser light generated by a laser at a wavelength greater than about 450 nm, and utilizing as a photosensitive composition a negative-working condensate of a para-aminobenzene diazonium compound, said compound being present in a quality of at least 25% of the total coating weight.

摘要翻译： 本发明涉及一种用于制备印版的光化学方法的改进，其中将包含涂覆在载体上的感光组合物的印版暴露于激光图案，该图案的强度根据 信息和所述印版随后通过从所述支持部分移除未暴露于所述激光图案的感光涂层组合物的部分而显影，其改进包括利用由大于等于的波长的波长的激光产生的激光图案 约450nm，并且作为感光组合物使用对氨基苯重氮化合物的负性缩合物，所述化合物的质量为总涂层重量的至少25％。

公开(公告)号：US4299906A

公开(公告)日：1981-11-10

申请号：US154737

申请日：1980-05-30

申请人： Shuchen Liu

发明人： Shuchen Liu

IPC分类号： G03F3/10 ,  G03F7/022 ,  G03C1/78 ,  G03C1/60 ,  G03C1/68

CPC分类号： G03F3/10 ,  G03F7/0226 ,  Y10S430/111

摘要： A color proofing foil of increased developability is provided which comprises a substantially transparent polymeric base sheet having a thin coating of a light sensitive composition on the surface of said sheet comprising a mixture of a colorant, a light sensitive material and an effective amount of anionic surfactant. The anionic surfactant is obtained by the reaction of P.sub.2 O.sub.5 with a condensation product of an alkylene oxide and an organic compound containing a reactive hydrogen. The light sensitive coating compositions of this invention when positive working exhibit greatly increased exposure speed. When negative working they exhibit increased development speed. In both cases, they retain the required good adhesion to film substrates, good scratch resistance, freedom from tack and acceptable resistance to overdevelopment.

摘要翻译： 提供了增加显影性的防色箔，其包括基本上透明的聚合物基片，其在所述片材的表面上具有光敏组合物的薄涂层，其包含着色剂，光敏材料和有效量的阴离子表面活性剂 。 阴离子表面活性剂是通过P2O5与烯化氧与含有反应性氢的有机化合物的缩合产物的反应获得的。 本发明的光敏涂料组合物当正性显影时大大提高了曝光速度。 负面工作时，它们的发展速度提高。 在这两种情况下，它们保持对膜基材所需的良好粘附性，良好的耐划伤性，无粘性和可接受的过度发展耐受性。