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Electrically conductive polymer resin and method for making same

A technology of polymer and polymer sheet, applied in the fields of electromagnetic wave shielding sheet, manufacturing the above-mentioned adhesive polymer sheet, and adhesive polymer sheet

Active Publication Date: 2012-07-04
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, a disadvantage of the above-mentioned methods in the prior art is that they require a separate adhesive handling step, or they necessitate the use of additional adhesives, such as double-sided adhesive tapes

Method used

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  • Electrically conductive polymer resin and method for making same
  • Electrically conductive polymer resin and method for making same
  • Electrically conductive polymer resin and method for making same

Examples

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specific Embodiment approach

[0073] Reference will now be made in detail to the following Examples, Comparative Examples and Experimental Examples of the present invention. It should be understood that the present invention is not limited to the following examples.

[0074] The term "part" described below means parts by weight based on 100 parts by weight of a polymer component formed by polymerization of monomers.

Embodiment 1

[0076] 95 parts of 2-ethylhexyl acrylate as acrylic acid monomer, 5 parts of acrylic acid and 0.04 parts of Irgacure-651 (α,α-methoxy-α-hydroxyacetophenone, obtained from Ciba Specialty Chemical, Tarrytown, NY) was introduced into a 1 L glass reactor. Then, the mixture was partially polymerized by light irradiation to obtain a slurry having a viscosity of 300 cps. To 100 parts of the resulting slurry was added as a photoinitiator 0.1 part of Irgacure-819 [(bis(2,4,6-trimethylbenzoyl)phenyl-phosphine oxide obtained from Ciba Specialty Chemical, Tarrytown, NY) and 0.65 parts of 1,6-hexanediol diacrylate (HDDA) as a crosslinking agent, and stir the mixture well. Then, 30 parts of silver-coated hollow glass spheres (SH230S33, Potters Industries Inc., Valley Forger, PA) with a particle size of about 44 μm were mixed with the mixture, and then stirred well to obtain a homogeneous mixture.

[0077] At the same time, if image 3 As shown, a transparent polypropylene film with a thi...

Embodiment 2

[0083] Example 1 was repeated to provide a polymer sheet except that 60 parts by weight nickel-coated graphite fibers from Sulzer Metco Inc., Winterthur, Switzerland were used as the conductive filler.

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Abstract

The present invention discloses polymer resins, including polymer resin sheets, having good electroconductivity and a method for manufacturing the same. The polymer resins exhibit flexibility and show electroconductivity on their surface as well as along their thickness, and thus can be used as electromagnetic wave-shielding materials having impact- and vibration-absorbing properties as well as conductivity.

Description

technical field [0001] The present invention relates to conductive polymer resins, and to methods for their manufacture. More specifically, the present invention relates to an adhesive polymer sheet which has flexibility and exhibits electrical conductivity on its surface and in its thickness direction, and thus can be used as a Non-toxic electromagnetic wave shielding sheet. The present invention also relates to a method of making the above-mentioned adhesive polymer sheet. Background technique [0002] Various harmful electric waves and electromagnetic waves generated in electronic instrument circuits may interfere with the functions of peripheral electronic components or devices, degrade performance, generate noise, degrade images, reduce their service life, and thus result in inferior products. In order to protect sensitive electronic equipment from these electric and electromagnetic waves, various electric and electromagnetic wave shielding materials have been develop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/22C08J5/18B32B27/30
CPCC08L101/12C08F2/44H01B1/22C08F2/48H05K9/0083H01B1/24C08F20/06C08K3/08C08K3/40C08L33/08
Inventor 崔汀完史彦宁金元植
Owner 3M INNOVATIVE PROPERTIES CO