Sealing member and method of producing the same

A sealing member and foam-making technology, which is applied in the directions of engine sealing, chemical instruments and methods, and engine components, can solve problems such as difficulty in sealing materials, and achieve the effect of reducing specific permittivity and high conductivity.
CN1655034AActive Publication Date: 2005-08-17INOAC CORP +1
1 Cites 8 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
INOAC CORP
Publication Date
2005-08-17

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A sealing member comprising an elastic sheet having a density in the range of 100 to 250 kg / m<3>. The elastic sheet is obtained by reacting and curing a polyurethane-foam raw material which is provided by mixing 100% by volume of a resin raw material and 300% by volume or more of a foam-forming gas, in which the resin raw material includes polyol and isocyanate as a main raw material and a foam stabilizer as an auxiliary material, and the like. The compression load deflection at 50% of the elastic sheet is in the range of 0.003 to 0.025 MPa, and the compression load deflection at 75% thereof is in the range of 0.02 to 0.40 MPa.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to a sealing member and a manufacturing method thereof, and more specifically, to a sealing member suitable for being arranged between the periphery of a liquid crystal display screen or the periphery of a microphone of a display portion of a portable communication device such as a mobile phone and the inner surface of a case, and a sealing member and the like. Manufacturing method. Background technique

[0002] In electrical equipment such as televisions, computers, mobile phones, and displays of portable information terminals, internal devices such as a liquid crystal display unit, a microphone unit, and a speaker unit are arranged to face the outside of the housing. In electrical equipment with such a structure, for example, a sealing member is interposed between the periphery of internal equipment such as a liquid crystal display unit and the casing to prevent dust, prevent light leakage from backlights, and prevent vi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More