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First liquid and second liquid of two-liquid mixing type and method for manufacturing printed wiring board

A printed wiring board and hybrid technology, which is applied in the fields of printed circuit manufacturing, printed circuit, printed circuit secondary treatment, etc., can solve the problems of poor storage stability and achieve excellent storage stability

Pending Publication Date: 2016-10-12
SEKISUI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] As in the conventional resist materials described in Patent Documents 1 and 2, there is a problem of poor storage stability

Method used

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  • First liquid and second liquid of two-liquid mixing type and method for manufacturing printed wiring board

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example 1

[0129] Put ethyl carbitol acetate as a solvent and azobisisobutyronitrile as a catalyst in a flask equipped with a thermometer, a stirrer, a dropping funnel, and a reflux condenser, and heat to 80° C. under a nitrogen atmosphere. A monomer obtained by mixing methacrylic acid and methyl methacrylate at a molar ratio of 30:70 was added dropwise over 2 hours. After the dropwise addition, the mixture was stirred for 1 hour, and the temperature was raised to 120°C. Then, cool down. Add glycidyl acrylate, the ratio of its molar weight to the total molar weight of the total monomer units of the obtained resin is 10, use tetrabutylammonium bromide as a catalyst, and heat at 100°C for 30 hours to make glycidyl acrylate Addition reaction with carboxyl group. After cooling, it was taken out from the flask to obtain a solution of carboxyl-containing resin containing 50% by weight (non-volatile matter) of solid content acid value 60mgKOH / g, weight average molecular weight 15000, and doub...

Embodiment 1

[0141] 15 g of the acrylic polymer obtained in Synthesis Example 1, 2 g of TPO (a photoradical generator, i.e. photopolymerization initiator, manufactured by BASF Japan), 30 g of CR-50 (titanium oxide, manufactured by Ishihara Sangyo Co., Ltd.), 30 g Ethyl carbitol acetate (diethylene glycol monoethyl ether acetate, manufactured by Diacel), 5g of FH105 (talc, manufactured by Fuji talc), and 1g of KS-7710 (complex type silicone oil, polydimethylsiloxane) Methylsiloxane, manufactured by Shin-Etsu Chemical Co., Ltd.), was mixed for 3 minutes with a mixer (Rentaro ARE-310, manufactured by Thinky Co., Ltd.), and then mixed with a triple roller to obtain a mixture. Then, the resulting mixture was defoamed for 3 minutes using ARE-310, thereby obtaining a first liquid.

[0142] 828 (bisphenol A type epoxy resin, manufactured by Mitsubishi Chemical Co., Ltd.), 5 g of DPHA (dipentaerythritol hexaacrylate), 5 g of FH105 (talc, manufactured by Fujitalc Co., Ltd.) and 10 g of CR-50 (titani...

Embodiment 2～9 and comparative example 1、2

[0145] Except that the types and compounding amounts of the materials used in the first liquid and the second liquid were changed as shown in the following Table 1, a two-liquid mixture having the first and second liquids was obtained in the same manner as in Example 1. Type first and second liquids (photosensitive composition before mixing).

[0146] (Evaluation)

[0147] (1) Storage stability

[0148] The first and second liquids obtained as above were put into a plastic container (manufactured by Kinki Container Co., Ltd., BHS-1200), left to stand at room temperature for 6 months, then, 2g of supernatant and The liquid at the bottom of the container was fired in a crucible at 550°C for 2 hours, and the ash content was calculated by the following formula.

[0149] Ash content (%) = liquid weight after firing / liquid weight before firing × 100

[0150] Based on the difference in ash content between the supernatant liquid and the liquid at the bottom of the container obtai...

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Abstract

The invention provides a first liquid and a second liquid of a two-liquid mixing type, wherein the first liquid and the second liquid have excellent storage stability and can prevent deviation of the reflectivity of an anti-corrosion film. The first liquid and the second liquid are used for obtaining a mixture, that is, a first liquid and a second liquid of a two-liquid mixing type of a photo-sensitive composition. The first liquid contains a carboxyl-containing polymerizable polymer, a polymerization initiator, titanium oxide, inorganic filler and an organic solvent. The second liquid contains a cyclic-ether-containing compound, titanium oxide and inorganic filler, and is free of an organic solvent. No more than 10% by weight of the photo-sensitive composition contains the organic solvent based on that the photo-sensitive composition contains 100% by weight of the whole organic solvent.

Description

technical field [0001] The present invention relates to a two-liquid mixing type first and second liquids for obtaining a photosensitive composition which is a mixture. More specifically, the present invention relates to a two-liquid mixing type first and second liquids preferably used for forming a solder resist film on a substrate or forming a light-reflecting resist film on a substrate on which a light-emitting diode chip is mounted. Moreover, this invention relates to the manufacturing method of the printed wiring board which used the said 2-liquid mixing type 1st, 2nd liquid. Background technique [0002] Solder resists are widely used as protective films for protecting printed wiring boards from high-temperature solder damage. [0003] In addition, in various electronic device applications, light emitting diode (hereinafter, abbreviated as LED) chips are mounted on the upper surface of the printed wiring board. In light emitted from the LED, a white solder resist fil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/004G03F7/027H05K3/28
CPCG03F7/004G03F7/027H05K3/282H05K2203/0562
Inventor 高桥骏夫中村秀
Owner SEKISUI CHEM CO LTD
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