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Liquid crystal resin composition for camera modules

A resin composition and liquid crystal technology, which are applied in the field of liquid crystal resin compositions and can solve problems such as the reduction of optical properties of camera modules

Active Publication Date: 2014-09-10
POLYPLASTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For components used in optical equipment such as camera modules, when minute dirt, oil, and dust adhere to the lens, the optical characteristics of the camera module will be significantly reduced

Method used

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  • Liquid crystal resin composition for camera modules
  • Liquid crystal resin composition for camera modules
  • Liquid crystal resin composition for camera modules

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0038] The (A) liquid crystalline resin used in the present invention can be prepared from the above-mentioned monomer compound (or a mixture of monomers) by a known method using a direct polymerization method or an ester exchange method, usually using a melt polymerization method or a slurry polymerization method. Wait. The above-mentioned compounds having ester-forming ability may be used in the polymerization as they are, or may be modified from a precursor to a derivative having the ester-forming ability in the early stage of polymerization. For their polymerization, various catalysts can be used, and typical examples include dialkyltin oxides, diaryltin oxides, titanium dioxide, alkoxytitanosilicates, titanium alkoxides, carboxylic acid Alkali metal salts and alkaline earth metal salts, like BF 3 Such Lewis acid salts etc. The amount of the catalyst used is usually about 0.001 to 1% by mass, particularly preferably about 0.01 to 0.2% by mass, based on the total weight o...

Embodiment

[0089] The following examples are given to illustrate the present invention in more detail, but the present invention is not limited to these examples.

[0090]

[0091] Liquid crystal resin (liquid crystal polyester amide resin): VECTRA (registered trademark) E950i (manufactured by Polyplastics Co., Ltd.)

[0092] Fibrous filler 1: TISMO N-102 manufactured by Otsuka Chemical Co., Ltd. (potassium titanate fiber, average fiber diameter 0.3-0.6 μm, average fiber length 10-20 μm)

[0093] Fibrous filler 2: Nitto Bosho Co., Ltd. make PF70E-001 (ground glass fiber, fiber diameter 10 μm, weight average length 70 μm)

[0094] Non-fibrous filler 1: Crown Talc PP manufactured by Matsumura Sangyo Co., Ltd. (talc, average particle diameter 12.8 μm, average aspect ratio 6)

[0095] Non-fibrous filler 2: AB-25S manufactured by Yamaguchi Mica Industry (mica, average particle diameter 24 μm)

[0096] Non-fibrous filler 3: A-41S manufactured by Yamaguchi Mica Industry (Mica, average parti...

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Abstract

Provided is a liquid crystal resin composition for camera modules, which is used for the purpose of producing a camera module component. The surface of a molded body of this liquid crystal resin composition for camera modules is not easily raised. This resin composition is obtained by blending at least one kind of (B) an inorganic filler that is selected from among (B1) fibrous fillers and (B2) non-fibrous fillers and at least one kind of (C) a copolymer that is selected from among (C1) olefin copolymers and (C2) styrene copolymers into (A) a liquid crystal resin, so that the component (A) is 65-93% by mass, the component (B) is 5-20% by mass and the component (C) is 2-10% by mass. The component (B1) has an average fiber diameter of 1.0 mum or less and an average fiber length of 5-50 mum, and the component (B2) is at least one filler that is selected from among plate-like fillers and granular fillers having an average particle diameter of 50 mum or less. The component (C1) and the component (C2) are respectively configured of specific components.

Description

technical field [0001] The present invention relates to a liquid crystalline resin composition for a camera module. Background technique [0002] Liquid crystalline resins represented by liquid crystalline polyester resins have excellent mechanical strength, heat resistance, chemical resistance, electrical properties, etc. in a well-balanced manner, and also have excellent dimensional stability, so they are regarded as high-functional engineering plastics. widely used. Recently, these properties of liquid crystalline resins have been utilized for precision equipment parts. [0003] In the case of precision equipment, especially optical equipment with lenses, small amounts of dirt, dust, etc. can affect equipment performance. For components used in optical equipment such as camera modules, when minute dirt, oil, or dust adheres to the lenses, the optical characteristics of the camera modules are significantly degraded. In order to prevent such degradation of optical proper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B17/02C08K3/00C08K7/00C08L63/00C08L101/12
CPCC08L101/12C08K3/00C08L77/12G03B17/02C08K3/0033C09D133/068C09K19/3809C08K7/00C08K3/346C08K7/04C08L23/0884C08L25/08C08K3/013C08L63/00C08K3/04
Inventor 广濑悠人平等文雄深津博树田口吉昭
Owner POLYPLASTICS CO LTD
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