Paste composition, and sintered body and method for producing same

A technology of composition and paste, which is applied to the device for coating liquid on the surface, conductive materials dispersed in non-conductive inorganic materials, coatings, etc., can solve problems such as poor firing properties

Active Publication Date: 2015-08-05
SOKEN CHEM & ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is known that paste compositions containing EC or PVB are generally good in coatability and dispersibility of inorganic particles, but poor in sinterability

Method used

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  • Paste composition, and sintered body and method for producing same
  • Paste composition, and sintered body and method for producing same
  • Paste composition, and sintered body and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0132] 4.1.1. Production Example 1 (Preparation of Polymer 1)

[0133] Using the monomer components having the compositions shown in Table 1, a (meth)acrylic (co)polymer, ie, Polymer 1, was prepared by the following method. First, 100 parts by weight of methyl ethyl ketone (MEK) was put into a flask equipped with a stirring device, a nitrogen gas introduction tube, a thermometer, and a reflux cooling tube, and the flask was stirred for 30 minutes while introducing nitrogen gas into the flask to perform nitrogen substitution. The temperature was raised to 80°C. Next, 100 parts by weight of 2-hydroxyisobutyl methacrylate (2HBMA) was added dropwise over 2 hours while maintaining the contents in the flask at 80°C, and azobisisobutyronitrile was added dropwise at the same time as the dropwise addition was started. (AIBN) 0.4 weight part was added 5 times every 1 hour. After 8 hours from the start of dropwise addition, it was cooled to room temperature. The obtained polymer solut...

manufacture example 2

[0134] 4.1.2. Production Example 2 (Preparation of Polymer 2)

[0135] The same method as in the above-mentioned production example was adopted, except that 100 parts by weight of 2HBMA used in the above production example 1 was changed to 30 parts by weight of isobornyl methacrylate (IBXMA), 65 parts by weight of 2HBMA and 5 parts by weight of methacrylic acid (MAA). 1 Polymer 2 was prepared by the same operation. The weight average molecular weight of the obtained polymer 2 was 50,000, the proportion of the structural unit (A) was 68 mol%, the proportion of the structural unit (B) was 22 mol%, the proportion of the structural unit (C) was 10 mol%, and the SP The value was calculated as 9.1.

manufacture example 3

[0136] 4.1.3. Production Example 3 (Preparation of Polymer 3)

[0137] The same procedure as in the above-mentioned Production Example 1 was adopted, except that 100 parts by weight of 2HBMA used in the above-mentioned Production Example 1 was changed to 50 parts by weight of cyclohexyl methacrylate (CHMA) and 50 parts by weight of cyclohexyl dimethanol monoacrylate (CHDMMA). Polymer 3 was prepared by the same operation. The weight average molecular weight of the obtained polymer 3 was 50,000, the ratio of the structural unit (A) was 46 mol%, the ratio of the structural unit (B) was 54 mol%, and the SP value was calculated as 8.8.

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Abstract

[Problem] To provide a paste composition that has an appropriate viscosity and exhibits good coating properties and good sintering properties, a method for producing a sintered body using the paste composition, and a sintered body. [Solution] A paste composition characterized by comprising a (meth)acrylic (co)polymer that contains 20-100 mol% of structural unit (A) represented by general formula (1). In general formula (1): R1 represents a hydrogen atom or a methyl group; R2 represents a group which satisfies the requirements X<13.5 Å and Y>6.15 Å [wherein X represents the diameter in the long side direction, and Y represents the diameter in the short size direction] and has a volume greater than 80 Å3, and which is a functional group having a hydrogen bonding ability, a group having an alkoxy group or a group having an aryloxy group; and n is a number of 5-2000.

Description

technical field [0001] The present invention relates to a paste composition, a fired body, and a method for producing the same. Background technique [0002] A paste composition containing inorganic particles such as conductive powder and ceramic powder is used to obtain sintered bodies of various shapes. For example, the conductive paste composition containing the conductive powder is used for circuit formation, production of capacitors, and the like. In addition, the ceramic paste composition containing ceramic powder or the glass paste composition containing glass powder is used for the manufacture of dielectric layers of plasma display panels (PDPs) or multilayer ceramic capacitors (MLCCs), fluorescent display tubes, and the like. Also, the paste composition containing ITO is used for the transparent electrode material used for the manufacture of PDPs, liquid crystal display panels (LCDs), circuit formation of solar cell panel drive parts, and the like. In addition, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/08C09D1/00C09D133/04H01G4/12H01G4/30
CPCH01G4/0085C08L33/08H01G4/12H01B1/22H01G4/2325H01G4/129C09D133/04H01G4/30C08F120/20C08F220/20C08F226/06C09D133/14C08F220/1804C08F220/1806C08F220/1811C08K5/05C08K3/08C08F220/06C08F220/283C08F222/06C08F20/28B05D3/007
Inventor 松本広斗宫本豪
Owner SOKEN CHEM & ENG CO LTD
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