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Composition containing conducting polymer particle

A technology of conductive polymer and composition, applied in the field of photography and thermal imaging photography, which can solve the problems of caking, increased pigment pollution, and small degree of triboelectric electrification.

Inactive Publication Date: 2003-07-09
EASTMAN KODAK CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] However, the use of said fluorosurfactants in large amounts leads to a decrease in emulsion sensitivity, an increased tendency to block, and increased pigment contamination during film processing
Therefore, it is extremely difficult to minimize the triboelectric electrification of all substances in contact with the imaging element without seriously degrading other essential performance characteristics of the imaging element

Method used

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  • Composition containing conducting polymer particle
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preparation example Construction

[0029] According to the present invention, the method for preparing the composition for use as a conductive composition comprises: preparing a stable aqueous colloidal dispersion consisting of one or more conductive polymeric materials. Preferably, these colloidal dispersions are combined with at least one neutrally charged conductivity enhancer, one or more film-forming polymeric binders, thickeners, and other additives. The composition can be incorporated into the imaging element in the form of a thin antistatic sublayer.

[0030] Conductive polymer particles may be coated on top of the water soluble coating composition. The polymer may be selected from any conductive polymer or a combination of conductive polymers, such as substituted or unsubstituted pyrrole-containing polymers (mentioned as examples in U.S. Patents 5,665,498 and 5,674,654), substituted or unsubstituted Thiophene-containing polymers (mentioned in U.S. Pat. Patents 5,716,550, 5,093,439 and 4,070,189 are m...

Embodiment 1

[0053] Embodiment 1. is suitable for the preparation method of a kind of coating composition that is used to prepare conductive layer and comprises with 173.9g demineralized water, 0.2g gelatin, 0.3g content is 1.0% chromium alum (gelatin hardener) aqueous solution, 0.19g content 10.6% aqueous solution of coating aid (10G surfactant provided by Olin Corp.), 0.22g content of 2% aqueous dispersion of polymethylmethacrylate particles and 15.39g content of 1.3% Baytron P TM Aqueous dispersions of colloidal PDET / PSS were mixed together. The coating composition described above was applied by means of a coating hopper to a 4 mil thick polyethylene terephthalate film support which had been previously coated with 1,1-dichloroethylene / acrylonitrile / itaconic acid. Copolymer coating. The wet laydown of the coating composition applied to the film support was 16.1 ml / m 2 , equivalent to a dry weight coverage of PDET / PSS of 16.1mg / m 2 . The surface resistivity (SER) of the conductive lay...

Embodiment 2-46

[0056] Also contains an organic neutrally charged conductivity enhancer and / or different Baytron P TM The preparation of the conductive coating at the ratio of gelatin involves mixing the neutrally charged conductivity enhancer at the concentration shown in Table 1 and adjusting the amount of gelatin in the molten state to obtain the Baytron P as shown in Table 1. TM Ratio to gelatin. The preparation method of the coating is as described in Example 1. The surface resistivity and net optical density of these conductive layers were measured by the above-mentioned method, and the results are listed in Table 1.

[0057] As shown in the data in Table 1, compared with only Baytron P TM Compared with the antistatic layer composition of gelatin, Baytron P TM The use of neutrally charged conductivity enhancer organic compounds in antistatic layer formulations mixed with gelatin can provide superior performance in terms of surface resistivity. In order to clearly show the improvemen...

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Abstract

A composition for forming an electrically conductive antistatic layer comprises: electronically conductive polymer particles; a neutral-charge conductivity enhancer; and a hydrophilic polymeric binder.

Description

technical field [0001] The present invention relates generally to conductive compositions for imaging elements, such as photographic, electrophotographic and thermal imaging elements, which contain one or more conductive antistatic layers. In particular, the present invention relates to conductive compositions for use in imaging elements comprising a support layer, an imaging layer and a conductive antistatic layer comprising specific conductive polymer particles. This invention relates generally to the science of imaging, and more particularly to photography, thermography and thermographic photography. Background technique [0002] The problems associated with the generation and discharge of static charges during the manufacture and use of photographic film and paper products have been recognized by the photographic industry for many years. The buildup of electrostatic charge on the surface of the film or paper can produce irregular electrostatically ...

Claims

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Application Information

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IPC IPC(8): B41M5/44C08G61/12C08K5/00C08L65/00C08L101/12G03C1/85G03C1/89G03G5/10H01B1/12H01B1/20
CPCC08L65/00G03C1/85G03G5/10B41M5/44G03C1/89C08G61/122H01B1/127C08L2666/26
Inventor M·勒伦塔尔C·C·安德森J·M·波钱J·L·瓦克利J·F·埃尔曼
Owner EASTMAN KODAK CO
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