Invention Grant
US08632943B2 Near-infrared sensitive, positive-working, image forming composition and photographic element containing a 1,1-di[(alkylphenoxy)ethoxy]cyclohexane
有权
近红外敏感,正性,成像组合物和含有1,1-二[(烷基苯氧基)乙氧基]环己烷的照相元件
- Patent Title: Near-infrared sensitive, positive-working, image forming composition and photographic element containing a 1,1-di[(alkylphenoxy)ethoxy]cyclohexane
- Patent Title (中): 近红外敏感,正性,成像组合物和含有1,1-二[(烷基苯氧基)乙氧基]环己烷的照相元件
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Application No.: US13361244Application Date: 2012-01-30
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Publication No.: US08632943B2Publication Date: 2014-01-21
- Inventor: Stephan J. W. Platzer , James A. Bonham , Kimberly R. Kukla , Richard C. Wax , Teresa Baker , Ella Ross Ryan
- Applicant: Stephan J. W. Platzer , James A. Bonham , Kimberly R. Kukla , Richard C. Wax , Teresa Baker , Ella Ross Ryan
- Applicant Address: US NC Youngsville
- Assignee: Southern Lithoplate, Inc.
- Current Assignee: Southern Lithoplate, Inc.
- Current Assignee Address: US NC Youngsville
- Agency: Roberts & Roberts, LLP
- Main IPC: B41N1/00
- IPC: B41N1/00 ; B41M5/00 ; G03F1/00 ; G03F7/26 ; G03C1/00 ; G03C1/52
![Near-infrared sensitive, positive-working, image forming composition and photographic element containing a 1,1-di[(alkylphenoxy)ethoxy]cyclohexane](/abs-image/US/2014/01/21/US08632943B2/abs.jpg.150x150.jpg)
Abstract:
An infrared sensitive, positive-working, image forming composition and element are disclosed. The image forming composition comprises a 1,1-di[(alkylphenoxy)ethoxy]cyclohexane, an infrared absorbing dye having a maximum absorption peak in the range of from about 700 nm to about 1100 nm, and a novolac polymer. The composition is applied and dried on a planar, hydrophilic substrate to form an image forming element, in particular, a planographic printing plate. Upon imagewise exposure to a near-infrared radiation source, the infrared dye absorbs light in the exposed areas and converts it to heat, which causes a disruption in the matrix of the image forming composition. Upon development with an aqueous alkaline developer, the exposed areas are removed while the nonexposed areas remain, thus forming a positive image.
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