Composite structure for airbag cover, and sewn product of composite structure

A composite structure and product technology, applied in synthetic resin layered products, layered products, vehicle safety arrangements, etc., can solve the problems of low flexibility and softness, small thickness, unfavorable touch, and achieve high breaking strength, easy Operation, the effect of reducing manufacturing costs

Active Publication Date: 2021-06-29
汽车工业用TMG塑化织物及其他涂料公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The disadvantage of the composite structure is the low flexibility and softness, especially when the density of the foam layer is high
On the other hand, the structure may have a small thickness
This is disadvantageous in terms of haptics and handling during processing

Method used

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  • Composite structure for airbag cover, and sewn product of composite structure
  • Composite structure for airbag cover, and sewn product of composite structure
  • Composite structure for airbag cover, and sewn product of composite structure

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0165] The artificial leather of example 1 has following structure:

[0166] Layer 0: lacquer based on silicone-containing aliphatic polyurethane, about 5 μm thick

[0167] Layer 1: Tight TPO layer (approximately 130 μm layer thickness)

[0168] Layer 2: Tight TPO layer (approximately 130 μm layer thickness)

[0169] Layer 3: Tight TPO layer (approximately 130 μm layer thickness)

[0170] Layer 4: Polypropylene foam (3500 to 4000 μm layer thickness; ground foam)

[0171] Layers 1 to 3 correspond to layers AA-B in Table 1.

[0172] Composite structures can be fabricated according to a method having the following steps:

[0173] (i) Lamination of TPO layer and thermal lamination to PP-foam

[0174] (ii) Paint the upper side and if necessary the back side

[0175] (iii) Embossing to form particles

[0176] (iv) Paint the back side if necessary

[0177] An alternative method includes the following steps:

[0178] (i) Pressed TPO layer

[0179] (ii) Paint the upper side

...

example 4

[0183] The artificial leather of example 4 has following structure:

[0184] Layer 0: lacquer based on silicone-containing aliphatic polyurethane, about 5 μm thick Layer 1: Tight TPO layer (layer thickness about 130 μm)

[0185] Layer 2: Tight TPO layer (approximately 130 μm layer thickness)

[0186] Layer 3: Tight TPO layer (approximately 130 μm layer thickness)

[0187] Middle layer: hot melt adhesive material, 40μm thick

[0188] Layer 4: 100% polyester textile, 400 to 600 μm thick

[0189] Middle layer: hot melt adhesive material, 40μm thick

[0190] Layer 5: Polypropylene foam (3500 to 4000 μm layer thickness, ground foam)

[0191] Layers 1 to 3 correspond to layers A-B-A in Table 1.

[0192] Composite structures can be fabricated according to a method having the following steps:

[0193] (i) Pressed TPO layer

[0194] (ii) Paint the upper side

[0195] (iii) Hot-melt bonding of TPO layer and polypropylene foam to polyester textile

[0196] (iv) embossing to form...

example 6

[0204] The artificial leather of example 6 has following structure:

[0205] Layer 0: lacquer based on silicone-containing aliphatic polyurethane, about 5 μm thick

[0206] Layer 1: Tight PVC layer (approximately 220 μm layer thickness) (PVC1)

[0207] Layer 2: PVC foam layer (approximately 430 μm layer thickness) (PVC2)

[0208] Layer 3: PVC-based tight adhesive material layer (approx. 40 μm layer thickness) (PVC3)

[0209] Layer 4: 100% polyester textile, 400 to 600 μm thick

[0210] Middle layer: hot melt adhesive material, 40μm thick

[0211] Layer 5: Polypropylene foam (3500 to 4000 μm layer thickness; ground foam)

[0212] PVC3 is used as the adhesive material layer.

[0213] Layers 1 to 3 correspond to layers PVC1 to PVC3 in Table 1.

[0214] Composite structures can be fabricated according to a method having the following steps:

[0215] (i) PVC layer coated and laminated with polyester textile

[0216] (ii) Paint the upper side

[0217] (iii) Embossing to for...

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Abstract

The invention relates to a composite structure, to a method for producing the same, to a sewn product which contains the composite structure, and to a method for producing the sewn product. The composite structure has a Shore A hardness of 20 to 45 according to DIN 53505 and has a foam layer, a cover layer, and a lacquer layer in this order, wherein the foam layer has a density of 40 to 100 kg / m3 and a gel content of 20 to 80% and contains a polyolefin, and the cover layer has a gel content of 0 to 20%, is thermoplastic, and comprises at least two compact sub-layers, each of which contains at least one thermoplastic selected from polyolefin and polyvinyl chloride.

Description

technical field [0001] The invention relates to a composite structure as a coating for an airbag cover, a sewn product and a method for producing the composite structure and the sewn product. Background technique [0002] Airbags are integrated in various locations in motor vehicles, for example in steering wheels, dashboards, doors, seats and roof panels. For a reliable mode of operation of the airbag it is necessary that the plastic carrier has, in all its layers, one or more material weaknesses, so-called target breaking points, which delimit the firing channel of the airbag. In the area of ​​the cover of the airbag, it is common for the cover of the airbag to be provided with a so-called break seam in the area of ​​the airbag flap, so that the break seam breaks without hindrance in the event of a collision and the airbag can be deployed. . [0003] However, for visual reasons or because of the design, motor vehicle manufacturers are increasingly requiring, for example,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B5/02B32B5/18B32B5/24B32B7/022B32B7/09B32B27/06B32B27/12B32B27/30B32B27/32B60R21/00
CPCB32B5/022B32B5/024B32B5/026B32B5/18B32B5/245B32B7/02B32B7/08B32B27/065B32B27/12B32B27/304B32B27/32B32B2255/10B32B2255/26B32B2266/025B32B2270/00B32B2307/536B32B2307/582B32B2307/71B32B2605/08B60R21/215B32B7/022B32B7/09B29C48/21B29K2023/00B29K2101/12B32B7/12B32B27/08B32B37/02B32B37/06B32B37/1207B32B37/182B32B38/06B32B2037/1215B32B2305/022B32B2305/186B32B2305/188B32B2305/20B32B2323/10B32B2327/06
Inventor E·德皮尼奥L·F·席尔瓦V·贡萨尔维斯J·布尔克T·马夸特
Owner 汽车工业用TMG塑化织物及其他涂料公司
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