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Curing method of curable silicone composition

A curing method and silicone technology, applied in the direction of adhesive additives, non-polymer adhesive additives, adhesives, etc., can solve the problem of poor curing reliability of the shading part, and achieve the effect of preventing poor curing

Active Publication Date: 2018-08-03
SHIN ETSU CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inadequate curing of the light-shielding portion has become a major problem in terms of manufacturing and device reliability

Method used

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  • Curing method of curable silicone composition
  • Curing method of curable silicone composition
  • Curing method of curable silicone composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5

[0135] The above components (A) to (D) were mixed as shown in Table 1 to prepare silicone compositions S1 to S5.

[0136] [Table 1]

[0137]

[0138] Using the prepared silicone compositions S1 to S5, curability (flow stop time, curing time, hardness), optical properties, and adhesive force were evaluated. The results are shown in Table 2. In addition, an ultraviolet uniform irradiation unit (SP-V SPOT CURE manufactured by Usio Denki Co., Ltd.) was used for ultraviolet irradiation.

[0139] (Evaluation method)

[0140] Flow stop time:

[0141] After applying the silicone composition to a glass dish so that the height becomes 1 cm, and irradiating ultraviolet rays so as to obtain a predetermined irradiation dose, the glass dish was tilted by 90°, and the time until the silicone composition stopped flowing was measured.

[0142] Curing time:

[0143] Apply the silicone composition to a glass dish so that the height becomes 1cm, and ultraviolet rays (irradiation amount 5,...

Embodiment 6

[0153] Using the silicone composition S2, a dark part curing test was carried out. The test method is shown below.

[0154] Dark curing test:

[0155] An aluminum dish with a diameter of 6 cm was filled with the silicone composition S2 so as to have a height of 6 mm, and it was covered with a black sheet that did not transmit light having a hole of 2 cm square. From a 2cm square hole, use an ultraviolet uniform irradiation unit (SP-V SPOT CURE manufactured by Usio Denki Co., Ltd.) to irradiate ultraviolet rays (irradiation dose: 5,000mJ / cm 2 ), after curing for a specified time at 25°C and 70°C, measure the cured area for evaluation. The results are shown in Table 3.

Embodiment 7

[0161] Using the silicone composition S2, a transparent resin interfacial curing test was carried out. The test method is shown below. As the transparent resin, polyacrylic resin (hereinafter, PMMA) (Clarex 001 クリヤー manufactured by Nitto Jushi Kogyo Co., Ltd.), polycarbonate resin (hereinafter, PC) (パンライトイート PC1151 manufactured by Teijin Corporation), and polyterephthalic acid were used. Ethylene glycol ester resin (hereinafter, PET) (SUPER PET PLATE 6010 manufactured by Takiron Corporation).

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Abstract

The invention provides a curing method for an ultraviolet curing organosilicone composition, and particularly provides a curing method for a curing organosilicone composition used for adhesion between a transparent resin and glass, transparent resin and transparent resin, as well as glass and glass. The curing organosilicone composition comprises (A) organopolysiloxane containing two alkenyl groups bonding to silicon in one molecule; (B) organohydrodiene polysiloxane containing two hydrogen groups bonding to silicon in one molecule, with the hydrogen atoms bonding to the silicon atoms being 0.4-4.0 equivalent based on that the alkenyl in (A) is one equivalent; and (C) platinum bis(acetylacetonate) (II) with an amount effective to a catalyst. The composition and the method are characterized in that: the composition cures at a temperature lower than 80 DEG C after the composition is radiated by ultraviolet ray.

Description

technical field [0001] The present invention relates to a method for curing an ultraviolet-curable silicone composition suitable for laminating a touch panel. A curing method of an ultraviolet curable silicone composition that can be sufficiently cured even at the interface. Background technique [0002] Simplification and cost reduction in the manufacturing process are being actively pursued in various fields in line with the ambition of reducing energy consumption in consideration of the environment. In particular, the manufacturing process of opto-electrical and electronic devices and displays is often accompanied by a high-temperature heating process requiring huge energy-time-equipment due to the curing of adhesive-sealing-encapsulation materials, and requires improvement. In addition, the improvement of the heating process is of great significance not only in terms of energy and cost but also in terms of manufacturing technology that does not damage other components. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/07C09J183/05C09J11/06C08J3/28
Inventor 手塚裕昭松田刚柳沼笃
Owner SHIN ETSU CHEM IND CO LTD
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