Resin composition for plating substrate and resin moldings using the same, and metal plated parts

A technology of resin composition and substrate, applied in coating, transportation and packaging, thin material processing, etc., can solve the problems of small molecular weight, pollution of mold surface, and poor appearance of coating layer.

Inactive Publication Date: 2004-07-14
大科能宇菱通株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the molecular weight of this flame retardant is small, the melting point is low, so at high temperature, this flame retardant is easy to volatilize (gasify), resulting in an increase in the amount of gas generated during molding
As a result, the generated gas contaminates the surface of the mold and accumulates (mold deposit) on the mold dividing surface, etc., causing problems such as a decrease in productivity or poor formation of the plating layer of the plated part or poor appearance.

Method used

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  • Resin composition for plating substrate and resin moldings using the same, and metal plated parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0091] The following are specific examples. However, the present invention is not limited to these Examples. In addition, "part" and "%" in an Example represent "part by mass" and "% by mass", respectively.

[0092] [Manufacture of graft copolymer (A-1)]

[0093] To 100 parts of polybutadiene latex (solid content) with a solid content of 35% and an average particle diameter of 0.08 μm, an average of 85% of n-butyl acrylate units and 15% of methacrylic acid units were added while stirring. 2 parts copolymer latex (solid content) having a particle size of 0.08 microns. After the stirring was continued for 30 minutes, an enlarged (enlarged) butadiene-based rubbery polymer latex having an average particle diameter of 0.28 μm was obtained.

[0094] The obtained enlarged butadiene-based rubbery polymer latex was put into a reaction vessel, and then 100 parts of distilled water, 4 parts of wood rosin emulsifier, 0.4 part of Demol N (trade name, manufactured by Kao Co., Ltd., naph...

experiment example 1～38、 comparative example 1～11

[0142] Prepare the resin for plating substrates by mixing the graft copolymer (A), other polymers (B), phosphate-based flame retardant (D) and inorganic filler (E) at the ratios shown in Tables 1 to 3 combination. However, each graft copolymer (A) contains an acetone-soluble component calculated as another polymer (B). Therefore, in the table, the actual mixing amount of the above-mentioned graft copolymer (A) and the net amount of the acetone-soluble component removed therefrom are also shown as the graft copolymer (A) calculated as other polymers (B). ) Amount of acetone soluble components. In addition, as the phosphate ester flame retardant (D), "Adecasta FP-500" (molecular weight 686, indicated as D-1 in the table) manufactured by Asahi Denka Co., Ltd., "Adeka "Adecastab" FP-700" (molecular weight 692, indicated as D-2 in the table), Daihachi Chemical Co., Ltd. "CR-733S" (molecular weight 574, indicated as D-3 in the table), "PX -200" (molecular weight 686, shown as D-4...

Embodiment 39～58

[0206] [Examples 39-58, Comparative Examples 12-20]

[0207] In the proportions shown in Table 7 and Table 8, mix graft copolymer (A), other polymers (B), red phosphorus flame retardant (D') and inorganic filler (E) to prepare a plating Resin composition for substrate. Each graft copolymer (A) contains an acetone-soluble component calculated as the other polymer (B). Therefore, the table shows the actual blending amount of the above-mentioned graft copolymer (A) and the net amount of acetone-soluble components removed therefrom, and also shows the graft copolymer (A) calculated as other polymer (B). The amount of acetone-soluble components in the medium. In addition, as the red phosphorus-based flame retardant (D'), "Nobaexel 140" manufactured by Phosphorus Chemical Industry Co., Ltd. was used. The inorganic filler (E) used the same thing as Experimental Examples 1-38.

[0208] Then, in the same manner as in Experimental Examples 1 to 38, the flame retardancy, moldability,...

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Abstract

The resin composition for a platable substrate of the present invention comprises 100 parts by weight of a resin composition (C) comprising 10 to 60% by weight of a graft copolymer (A) prepared by graft polymerization of a rubbery polymer (A1) and a monomer component (A2) containing an aromatic alkenyl compound monomer unit (a) and a vinyl cyanide compound monomer unit (b) and 40 to 90% by weight of the other polymer (B) (provided that the total amount of the components (A) and (B) is 100% by weight), and 5 to 40 parts by weight of a phosphate ester flame retardant (D) having a molecular weight of more than 326 or 2 to 40 parts by weight of a red phosphorus flame retardant (D'). The resin composition for a platable substrate of the present invention is excellent in production stability such as moldability, dimensional stability, mechanical strength and plating properties, and is also environmentally friendly. Excellent plated parts having good thermal conductivity can be provided by forming a metal plating layer on a resin molded article obtained by molding the resin composition for a platable substrate using a plating treatment. The resulting plated parts are suitable for use as housings for laptop PC and portable devices.

Description

technical field [0001] The present invention relates to a flame-retardant resin composition for plating substrates, and resin molded articles and plated parts using the composition. Background technique [0002] At present, the housings of notebook computers and portable instruments mainly use non-reinforced and fiber-reinforced flame-retardant ABS resins (acrylonitrile-butadiene-styrene resins), flame-retardant PC-ABS resins (polyethylene Carbonate-ABS resin) and other materials. [0003] However, in recent years, in addition to strict requirements for lighter and thinner instruments, it is also required to be able to withstand impacts or loads when they are packed in boxes, etc. strong impact. Therefore, it is necessary to require the resin material used for the housing to have high rigidity and impact resistance. [0004] In addition, the housing of such a machine must also have electromagnetic wave interference shielding (hereinafter referred to as EMI shielding). In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F257/02C08F265/04C08F279/02C08F279/04C08F283/12C08F291/00C08K3/02C08K3/04C08K5/521C08K5/523C08L51/00C08L51/04C08L51/08C08L55/02C08L67/00C08L67/02C08L69/00C08L77/00C08L77/02C08L77/06C09D151/00C25D5/56
CPCC08K3/04C08L69/00C08F279/04C09D151/003C08K5/523C08L67/02C08L77/06C25D5/56C08L77/00C08L51/003C08F291/00C08K5/521C08L67/00C08L51/04C08L55/02C08K2003/026C08L51/085C08F257/02C08F265/04C08K3/02C08L77/02C08F283/12C08F279/02C08L2666/14C08L2666/02C08L2666/24C08L101/00C08K3/00Y10T428/31681Y10T428/31507Y10T428/31678Y10T428/31696Y10T428/31692
Inventor 手塚康一藤井诚三
Owner 大科能宇菱通株式会社
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