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Weather strip

A technology for weather strips and main body, applied in textile, household seals, decorations and other directions, can solve the problems of poor adhesion of non-woven fabrics, easy deformation, easy peeling of non-woven fabrics, etc., and achieve the effect of preventing peeling.

Inactive Publication Date: 2019-09-20
JAPAN VILENE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in order to reduce the weight, an attempt was made to use a sponge with a specific gravity of about 0.5 to 0.85 as the main body of the weather strip. Although it is highly foamed, it is easily deformed, so even if the above-mentioned non-woven fabric is used, it cannot sufficiently follow the deformation of the main body of the weather strip. , Wrinkles are easy to occur when bending, and in addition, due to the poor adhesion with the non-woven fabric, the problem that the non-woven fabric is easy to peel off during use occurs

Method used

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Experimental program
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Effect test

Embodiment 1

[0051] (1) Preparation of weatherstrip main body (preparation of ethylene-propylene-diene copolymer rubber)

[0052] By adjusting the amount of foaming agent and the degree of vulcanization, ethylene-propylene-diene copolymer rubbers as shown in Table 1 were prepared. In addition, the 25% modulus measures the modulus at 25% elongation according to JIS K6251, and the specific gravity is measured by an underwater substitution method.

[0053] [Table 1]

[0054] 25% modulus (kPa) Specific gravity (g / mL) R1 539 0.71 R2 709 0.78 R3 568 0.67

[0055] (2) Preparation of non-woven fabrics

[0056] Parallel web that uses a carding machine to open 100% polyester-based latent crimp fibers (Toray Co., Ltd., Toray Tetron T-25, side-by-side type, polyester / low melting point polyester, 2.2dtex×51mm) A cross-ply net is formed across layers, and a similarly formed parallel net is laminated on the above-mentioned cross net to form a cross net.

[0057] Th...

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Abstract

The invention provides a weather strip excellent in follow ability and adhesion with a nonwoven fabric, even when design is improved by using the nonwoven fabric, with respect to a weather strip body whose specific gravity is about 0.5-0.85. The weather strip of the invention is formed by attaching a nonwoven fabric to a weather strip body whose specific gravity is 0.5-0.85 via an adhesive resin sheet. The weather strip body is formed of an ethylene-propylene copolymer type rubber. The adhesive resin sheet comprises a random polypropylene and polypropylene type thermoplastic elastomer.

Description

[0001] This application is a divisional application of the invention patent application with the application number 201510138550.4, the application date is March 27, 2015, and the invention name is "weather stripping". technical field [0002] The present invention relates to weather stripping. Background technique [0003] In the weather strip, the design surface of the weather strip main body is improved by sticking a nonwoven fabric through a resin adhesive layer. [0004] For example, the present applicant proposes a weather strip using a nonwoven fabric having a colored decorative layer and an uncolored adherend layer bonded to an adhesive layer (Patent Document 1). In this weather strip, the adhesive force between the nonwoven fabric and the adhesive layer is strong, and there is no possibility that the nonwoven fabric may peel off from the adhesive layer. [0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2011-173498. [0006] However, in order to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60J10/16B60J10/84
CPCB32B5/022B32B27/08B32B27/32B32B2250/03B32B2605/00B32B2581/00B32B5/26B32B7/12B32B25/10B32B27/12B32B2274/00B32B2307/4026B32B2451/00B60J10/84B60J10/16Y10T428/24901Y10T442/678B60J10/15
Inventor 津村达彦大塚洋史高桥和宏
Owner JAPAN VILENE CO LTD