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Inorganic microparticle-dispersed paste composition

A technology of inorganic particles and compositions, applied in luminescent materials, pigment pastes, chemical instruments and methods, etc., can solve the problems of difficulty in adjusting the molecular weight of acrylic resins, deterioration of thermal decomposition properties of acrylic resins, poor thermal decomposition properties, etc. High efficacy, improved dispersion stability, and the effect of preventing re-aggregation

Inactive Publication Date: 2012-01-25
SEKISUI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, glass powder, ceramic powder, phosphor, etc. have a tendency to improve the dispersion stability by adding a dispersant having an amino group, but on the opposite side of this tendency, the dispersant used is far worse than ethyl cellulose in thermal decomposition, Even a small amount can easily become a residue after sintering
[0006] On the other hand, a method of introducing an amino group into an ester substituent in an acrylic resin has also been tried, but even when a very small amount of the amino group is introduced, the thermal decomposability of the acrylic resin is greatly deteriorated. A Michael addition reaction occurs between them, and there is a tendency of huge molecularization. It is difficult to adjust the molecular weight of acrylic resin to a smaller one.

Method used

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  • Inorganic microparticle-dispersed paste composition
  • Inorganic microparticle-dispersed paste composition
  • Inorganic microparticle-dispersed paste composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0107] Mix 100 parts by weight of methyl methacrylate (MMA) and 100 parts by weight of terpineol as an organic solvent in a 2L detachable flask with a stirrer, a cooler, a thermometer, a hot water bath, and a nitrogen gas inlet to obtain a single body mixture.

[0108] After removing dissolved oxygen by bubbling the obtained monomer mixed liquid with nitrogen gas for 20 minutes, the inside of the separable flask was replaced with nitrogen gas, and the temperature of the oil tank was raised to 130° C. while stirring. A solution obtained by diluting 2,2'-azobis[2-methyl-N-(2-hydroxyethyl)propionamide] as a polymerization initiator with terpineol was added. Moreover, the terpineol solution containing a polymerization initiator was added several times during polymerization, and 1.5 weight part of polymerization initiators were added in total with respect to 100 weight part of monomers.

[0109] After 7 hours from the start of the polymerization, it was cooled to room temperature ...

Embodiment 2

[0113] 100 parts by weight of methyl methacrylate (MMA) and 100 parts by weight of toluene as an organic solvent were mixed in a 2L detachable flask with a stirrer, a cooler, a thermometer, a hot water bath, and a nitrogen inlet to obtain a monomer mixture. liquid.

[0114] After removing dissolved oxygen by bubbling nitrogen gas into the obtained monomer mixed liquid for 20 minutes, the inside of the separable flask was replaced with nitrogen gas, and the temperature of the oil tank was raised to 130° C. while stirring. A solution obtained by diluting 2,2'-azobis[2-(2-imidazolin-2-yl)propane] as a polymerization initiator with terpineol was added. Separately, the terpineol solution containing the polymerization initiator was added several times during the polymerization, and a total of 1.5 parts by weight of the polymerization initiator was added with respect to 100 parts by weight of the monomers.

[0115] After 7 hours from the initiation of the polymerization, the polymer...

Embodiment 3

[0119] In a 2L detachable flask having a stirrer, a cooler, a thermometer, a hot water bath, and a nitrogen inlet, 100 parts by weight of methyl methacrylate (MMA) and 200 parts by weight of terpineol as an organic solvent were mixed to obtain Monomer mixture.

[0120] After removing dissolved oxygen by bubbling nitrogen gas into the obtained monomer mixed liquid for 20 minutes, the inside of the separable flask was replaced with nitrogen gas, and the temperature of the oil tank was raised to 130° C. while stirring. A solution obtained by diluting 2,2'-azobis[2-(2-imidazolin-2-yl)propane] as a polymerization initiator with terpineol was added. Moreover, the terpineol solution containing a polymerization initiator was added several times during polymerization, and 10 weight part of polymerization initiators were added in total with respect to 100 weight part of monomers.

[0121] After 7 hours from the initiation of the polymerization, the polymerization was completed by cooli...

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Abstract

Disclosed is an inorganic microparticle-dispersed paste composition which can be defatted at low temperature and has excellent dispersibility and storage stability. The inorganic microparticle-dispersed paste composition comprises a (meth)acrylic resin, inorganic microparticles, and an organic solvent. The (meth)acrylic resin has an amino group or an amide group at a molecular end and has a weight average molecular weight in terms of polystyrene of 5000 to 100000.

Description

technical field [0001] The present invention relates to an inorganic fine particle dispersion paste composition capable of degreasing at low temperature and excellent in dispersibility and storage stability. Background technique [0002] In recent years, inorganic fine particle dispersion paste compositions obtained by dispersing inorganic fine particles such as conductive powder and ceramic powder in a binder resin have been used to obtain fired bodies of various shapes. In particular, a phosphor paste composition obtained by dispersing phosphor as inorganic fine particles in a binder resin, and a glass paste obtained by dispersing low-melting glass are used in plasma displays, etc., and demand has been increasing in recent years. high. [0003] As the binder resin used in the inorganic fine particle dispersion paste composition, cellulose-based resins such as ethyl cellulose having thixotropy are generally used. However, when considering the process of dispersing inorgan...

Claims

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Application Information

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IPC IPC(8): C08L33/04C08F4/04C08F20/10C09D17/00C09K11/02
CPCC09D17/004C08F20/10C08K7/18C08L33/04C09K11/02
Inventor 宫崎宽子山内健司平池宏至森口慎太郎麻生隆浩
Owner SEKISUI CHEM CO LTD
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