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Inorganic fine particle composite body, method for producing same, composition and cured product

A technology of inorganic particles and composites, applied in the direction of coating, etc., can solve problems such as aggregation and inorganic particle precipitation, and achieve the effects of low linear expansion rate, excellent wear resistance, and excellent dimensional stability

Active Publication Date: 2016-02-17
DIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even if it is finely dispersed in an organic polymer and stored for a long time, there is a problem of precipitation and aggregation of inorganic particles

Method used

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  • Inorganic fine particle composite body, method for producing same, composition and cured product
  • Inorganic fine particle composite body, method for producing same, composition and cured product
  • Inorganic fine particle composite body, method for producing same, composition and cured product

Examples

Experimental program
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Effect test

Embodiment

[0213] Hereinafter, the present invention will be described more specifically using examples and comparative examples. In the examples, "parts" and "%" are based on weight unless otherwise specified.

[0214] In Examples, the number average molecular weight uses the value measured by the GPC (gel permeation chromatography) method on the following conditions.

[0215] (a) Apparatus: Gel Permeation Chromatography GCP-244 (manufactured by WATERS Corporation)

[0216] (b) Column: 2 pieces of ShodexHFIP80M (manufactured by Showa Denko Co., Ltd.)

[0217] (c) Solvent: dimethylformamide

[0218] (d) Flow rate: 0.5ml / min

[0219] (e) Temperature: 23°C

[0220] (f) Sample concentration: 0.1% Solubility: Completely dissolved Filtration: MaishoriDiskW-13-5

[0221] (g) Injection volume: 0.300ml

[0222] (h) Detector: R-401 differential refractometer (WATERS)

[0223] (i) Molecular weight calibration: polystyrene (standard)

[0224] In addition, in the examples, the measurement of...

Synthetic example 1

[0236] Synthesis of Polysiloxane Segment Precursor (a1-1)

[0237] 415 parts of MTMS and 756 parts of MPTS were added to a reaction vessel equipped with a stirrer, a thermometer, a dropping funnel, a condenser, and a nitrogen inlet, and the temperature was raised to 60°C while stirring under nitrogen ventilation. Next, a mixture containing 40.1 parts of PhoslexA-4 and 121 parts of deionized water was added dropwise over 5 minutes. After completion of the dropwise addition, the temperature in the reaction container was raised to 80° C. and stirred for 4 hours, whereby a hydrolysis condensation reaction proceeded to obtain a reaction product.

[0238] Under a reduced pressure of 1 to 30 kilopascals (kPa), the methanol and water contained in the obtained reaction product are removed under the condition of 40 to 60°C, thereby obtaining a polysiloxane chain with a number average molecular weight of 1000. Segment precursor (a1-1) 1000 parts.

Synthetic example 2～7

[0239] Synthesis of polysiloxane segment precursors (a1-2) to (a1-7)

[0240] It carried out similarly to the synthesis example 1, and reacted with the compounding ratio of following Table 4, and obtained polysiloxane segment precursor (a1-2)-(a1-7).

[0241] [Table 4]

[0242]

[0243] Synthesis of Segment Precursors of Vinyl-Based Polymers

[0244] Synthesis of Vinyl Polymer Segment Precursor (a2-1)

[0245] In the same reaction vessel as in Synthesis Example 1, 20.1 parts of PTMS as a silane compound, 24.4 parts of DMDMS, and 107.7 parts of MIBK as a solvent were added, and the temperature was raised to 95° C. while stirring under nitrogen gas.

[0246] Then, at the same temperature, under nitrogen ventilation, dropwise add 1.5 parts of AA, 1.5 parts of BA, 30.6 parts of MMA, 14.4 parts of BMA, 75 parts of CHMA, A mixture of 22.5 parts of HEMA, 4.5 parts of MPTS, 6.8 parts of TBPEH, and 15 parts of MIBK was then stirred at the same temperature for 2 hours to obtain ...

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Abstract

Provided is an inorganic fine particle composite body (M) which is characterized in that a composite resin (A), wherein a polysiloxane segment (a1) having a specific structure and a vinyl polymer segment (a2) are bonded with each other, and inorganic fine particles (m) are bonded with each other at the polysiloxane segment (a1) via a siloxane bond. Also provided are a composition and a hard coat material, each of which contains the inorganic fine particle composite body (M). Also provided are: a cured product which is obtained by curing the composition containing the inorganic fine particle composite body (M); and a laminate which contains the cured product.

Description

technical field [0001] The present invention relates to an inorganic fine particle composite capable of stably existing inorganic fine particles for a long period of time, a method for producing the same, and a composition and cured product containing the inorganic fine particle composite. Background technique [0002] For the purpose of imparting properties such as processability and flexibility possessed by organic polymers and properties such as heat resistance, abrasion resistance, etc., and surface hardness possessed by inorganic materials, extensive research is being conducted on blending inorganic fine particles into organic polymers , Organic polymers compounded with inorganic particles are used as hard coating materials and heat-resistant materials. [0003] In the design utilizing the inherent characteristics of inorganic materials such as heat resistance and wear resistance, a higher composite effect can be expected by blending inorganic fine particles with as sma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/442C08K9/06C08L83/06
CPCC08G77/442C08K9/06C09D183/10C08G77/20C08K3/36C08L83/10C09D183/06
Inventor 三木崇之矢木直人冈贤一郎高田泰广工藤伸一大津理人兼松孝之
Owner DIC CORP
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