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Resin composition for laser beam welding, article for laser beam welding, and composite molded article

A resin composition and laser welding technology, applied in laser welding equipment, welding equipment, applications, etc., can solve the problem of laser transmittance reduction and achieve the effect of preventing appearance deterioration

Inactive Publication Date: 2011-10-05
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, during laser welding, crystalline resins and fillers lower the laser transmittance of the molded article for laser welding, so there is a problem that sufficient laser transmittance may not be achieved depending on the application of the molded article for laser welding.

Method used

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  • Resin composition for laser beam welding, article for laser beam welding, and composite molded article
  • Resin composition for laser beam welding, article for laser beam welding, and composite molded article
  • Resin composition for laser beam welding, article for laser beam welding, and composite molded article

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0024] FIG. 1 shows Embodiment 1 of the present invention.

[0025] As shown in FIG. 1 , the composite molded body 1 according to Embodiment 1 is formed by joining a transmission-side to-be-welded object 2 and an absorption-side to-be-welded object 3 at the interface S of both by laser welding to be integrated.

[0026] When manufacturing the composite molded body 1, the transmission-side object to be welded 2 and the absorption-side object to be welded 3 are brought into contact, and the interface S of both is irradiated with laser light through the transmission-side object to be welded 2, and the transmission-side object to be welded 2 and the absorption-side object to be welded are irradiated with laser light. The absorbing side is welded by laser welding 3 .

[0027] The object to be welded on the transmission side 2 is formed of a molded body for laser welding, and the thickness of the molded body for laser welding is 0.5 to 6 mm (preferably 1 to 3 mm). If the thickness ...

Embodiment 1

[0059] 80 parts by mass of aromatic polysulfone resin "Sumika Exel PES 3600P" (glass transition temperature Tg = 225°C) manufactured by Sumitomo Chemical Co., Ltd. and glass fiber "CS03JAPx-1" (single fiber) manufactured by Owens Corning Japan Ltd. Diameter 10 μm, refractive index 1.56) 20 mass parts are mixed, with respect to this mixture 100 mass parts, after adding 0.2 mass parts of triphenyl phosphate manufactured by Wako Pure Chemical Industries Co., Ltd. as a heat stabilizer, use (KK) Ikegai product A twin-screw extruder "PCM-30" was melt-kneaded to prepare pellets containing a resin composition for laser welding. As melt-kneading conditions at this time, the barrel set temperature of the twin-screw extruder was set to 330° C., and the screw rotation speed was set to 150 rpm. The barrel set temperature referred to here refers to the average value of the set temperatures of the heating devices installed from the most downstream portion of the barrel to about 2 / 3 of the ba...

Embodiment 2

[0061] Pellets containing the resin composition for laser welding were prepared in the same manner as in Example 1 above except that glass fiber "CS03MAFT692" (single fiber diameter: 13 μm, refractive index: 1.56) manufactured by Owens Corning Japan Ltd. was used instead. Table 1 is the composition table.

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Abstract

Disclosed is a resin composition for laser beam welding containing an aromatic polysulfone resin and a filler, wherein the weight ratio of the aromatic polysulfone resin to the filler is 20 to 99:80 to 1, and the filler includes a glass fiber having a monofilament diameter of 10 to 50 micrometers. And, the amount of a crystalline resin, relative to 100 parts by weight of the total of the aromatic polysulfone resin and the glass fiber, is 0 to 10 parts by weight.

Description

technical field [0001] The present invention relates to a resin composition for laser welding, a molded article for laser welding, and a composite molded article. [0002] This application claims priority based on Japanese Patent Application No. 2010-077289 for which it applied in Japan on March 30, 2010, and takes in the content here. Background technique [0003] Conventionally, it has been known that when two thermoplastic resin molded bodies are integrated to obtain a composite molded body, in order to join these thermoplastic resin molded bodies stably and with high strength by laser welding, it is required that the material to be welded on the transmission side (thermoplastic resin molded article) has a laser transmittance higher than a certain level (for example, refer to Patent Documents 1 and 2). [0004] Furthermore, it is disclosed that a filler is added to a crystalline resin (polyphenylene sulfide resin) excellent in mechanical properties and heat resistance fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K13/04C08L81/06C08K7/14B29C65/16B23K26/32C08J5/12
CPCB29C66/7352C08J2381/06B29C65/1616B29C65/1677B29C66/72143B29C65/1635B29C66/71B29K2105/16B29C66/7212B29K2509/08C08J5/121B29C66/1122B29C66/73775C08L81/06B29C66/7392B29C66/73921B29C66/73776B29C66/45C08K7/14B29L2031/7172B29K2081/06B29K2309/08
Inventor 坂祐一前田光男齐藤慎太郎
Owner SUMITOMO CHEM CO LTD
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