Molded article

A molding product, thermoplastic resin technology, applied in the direction of hoisting device, coupling device, lighting and heating equipment, etc., can solve the problems of easy to corrode mold, complicated steps, limited cost reduction, etc., achieve high strength, dimensional accuracy, manufacturing Cost reduction and excellent acoustic characteristics

Pending Publication Date: 2020-05-19
FURUKAWA ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, although the method described in Patent Document 2 is improved compared with the conventional method, the steps are complicated and there is a limit to cost reduction.
[0011] In addition, when the above-mentioned molded product such as a lamp body is molded by injection molding using a composite resin containing polypropylene and plant fibers as described in Patent Document 1, there is a problem that the mold used in its molding is easily corroded.

Method used

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Embodiment

[0228] Hereinafter, the present invention will be described in more detail based on examples, but the present invention is not limited by these examples. The materials used are shown below.

[0229]

[0230] (1) Thermoplastic resin

[0231] ・Thermoplastic resin A: High-density polyethylene [MFR=5g / 10min (190°C / 2.16kg), density=0.953g / cm 3 ]

[0232] ・Thermoplastic resin B: Ethylene-propylene copolymer [ethylene content rate: 16% by mass, MFR (190°C / 2.16kg) = 1.4g / 10min, density = 0.862g / cm 3 ]

[0233] ・Thermoplastic resin C: Ethylene-octene copolymer [MFR=1.0g / 10min (190°C / 2.16kg), density=0.870g / cm 3 ]

[0234] (2) Cellulose

[0235] Cellulose A: KC Flock W-200 [trade name: powdered cellulose manufactured by Nippon Paper Co., Ltd., with an average particle diameter of about 32 μm]

[0236] - Cellulose B: LIGNOCEL C-120 [trade name J RETTEN MAIER & Sons Co., Ltd., particle size 70-150 μm]

[0237] (3) Ionic compounds

[0238] ・Ionic compound A: 1-butyl-3-methylimid...

Embodiment 2

[0252] The cellulose-reinforced thermoplastic resin composition containing one type of thermoplastic resin obtained in 2) was produced without performing the step 3) of Example 1. Then, using this cellulose-reinforced thermoplastic resin composition, a lamp body was fabricated by the same method as in step 4) of Example 1.

Embodiment 3

[0254] In the step 1) of Example 1, 0.1 parts by mass of the ionic compound A was mixed with 99.9 parts by mass of the cellulose A, and in the step 2), the thermoplastic resin A and B were used instead of the thermoplastic resin B according to A cellulose-reinforced thermoplastic resin composition containing two types of thermoplastic resins was prepared in the same manner as in Example 2 except that the resins mixed so that the mass ratio was 499:1. Then, using this cellulose-reinforced thermoplastic resin composition, a lamp body was fabricated by the same method as in step 4) of Example 1.

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Abstract

The present invention relates to a molded article which comprises a resin part that is formed of a thermoplastic resin composition wherein refined cellulose is uniformly dispersed in a thermoplastic resin. This molded article comprises a resin part that is formed of a thermoplastic resin composition which contains a thermoplastic resin, cellulose and an ionic compound, and which is configured suchthat: the content of the cellulose is 1 to 100 parts by mass relative to 100 parts by mass of the thermoplastic resin; and the content of the ionic compound is 0.001 times or more but less than 1.000times the content of the cellulose.

Description

technical field [0001] The present invention relates to molded products including resin parts such as lamp bodies, speaker units, junction boxes, connectors, pulleys, and shed films of lamps, and particularly to molded products including resin parts produced by injection molding, T-die molding, etc. moldings. In more detail, it relates to a lamp body, speaker assembly, junction box, connector, belt Molded products such as wheels and greenhouse films. Background technique [0002] In recent years, in order to reduce the fuel consumption of vehicles such as automobiles, further weight reduction of vehicles has been demanded. In order to reduce the weight of vehicles, it is not only required to reduce the weight of large parts such as the body of the vehicle, but also lamps such as headlights, speaker units for vehicles as one of the components of the audio system mounted on the vehicle, and automotive components. Weight reduction of various components such as junction boxes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/00C08K5/17C08L1/02F16H55/18F21V15/01H01R13/46H04R7/02
CPCH01R13/46C08K5/17C08L1/02H04R7/02F16H55/18F21V15/01C08J5/045C08L23/06C08L51/06C08L101/025H01R13/504C08K3/017
Inventor 金宰庆须山健一中岛康雄小泽英史
Owner FURUKAWA ELECTRIC CO LTD
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