Aesthetic Multilayer Surface Material For The Engine Bay Area

Patent metadata

Field	Value
Publication number	US-2018099490-A1
Application number	US-201615566506-A
Country	US
Kind code	A1
Filing date	Apr 14, 2016
Priority date	Apr 15, 2015
Publication date	Apr 12, 2018
Grant date	—

Abstract

A multilayer surface material, for covering a surface of an engine bay component, consisting of 2 layers with a first outer layer being an open structured textile fabric and a second layer being a polymeric film layer superposed and laminated together such that the film layer is visible through the open structure of the textile layer.

First claim

1 . A multilayer surface material, for covering a surface of an engine bay component, consisting of two layers with a first outer layer being an open structured textile fabric and a second layer being a polymeric film layer superposed and laminated together such that the film layer is visible through the open structure of the textile layer.

2 . Multilayer surface material according claim 1 , whereby the average hole size of the open structure in the textile fabric is between 50 and 2000 μm, preferably between 50 and 700 μm.

3 . Multilayer surface material according to claim 1 , whereby the textile fabric has an average fabric cover factor of between 60 and 99%.

4 . Multilayer surface material according to claim 1 , whereby the textile fabric is made of a thermoplastic material with a melting temperature of at least 220° C., preferably made of polyester, more preferably made of polyethylene terephthalate (PET) or polybutylene terephthalate (PST).

5 . Multilayer surface material according to claim 1 , whereby the outer layer is either one of a knitted or woven fabric.

6 . Multilayer surface material according to claim 1 , whereby the film layer is thermoplastic polyurethane (TPU).

7 . Multilayer surface material according to claim 1 , whereby the film layer is a least partially perforated.

8 . Multilayer surface material according to claim 1 , whereby the film layer has a thickness of between 20 and 150 μm, more preferably between 25 and 80 μm.

9 . An engine bay trim part or cladding for covering a surface, wherein in that it comprises a multilayer surface material according to claim 1 laminated on at least one outer surface of the trim part such that the open textile fabric forms the most outer layer of the trim part.

10 . The engine bay trim part according to claim 9 further comprising at least a carrier layer made of rigid or semi-rigid foam, preferably open cell foam.

11 . The engine bay trim part according to claim 10 , whereby the foam is made of either polyurethane foam or melamine foam.

12 . The engine bay trim part according to claim 9 , further comprising at least a carrier layer consisting of a consolidated fibrous material consisting of fibres and a binder in the form of a thermoplastic binder or a thermoset binder whereby the binder forms small binding points between the fibers to consolidate the fibrous material.

13 . The engine bay trim part according to claim 12 , whereby the fibres are at least one of thermoplastic fibers, preferably polyester fibers, preferably polyethylene-terephthalate (PET) or polybutylene terephthalate (PBT), natural fibers, preferably cotton or flax fibers, or mineral fibers, preferably glass fibers, carbon, ceramic or basalt fibers or a mixture of such fibers.

14 . The engine bay trim part according to claim 12 , whereby at least part of the thermoplastic fibers used are self-crimped fibers, preferably conjugate fibers, more preferably hollow conjugate fibers.

15 . The engine bay trim part according to claim 12 , whereby the thermoplastic binder is either a copolymer of polyester, or polyamide or whereby the thermoset binder is a resinous type preferably phenolic resin.

16 . The engine bay trim part according to claim 9 , comprising an acoustic absorbing layer, preferably a fibrous layer or an open cell foam layer.

17 . The engine bay trim part according to claim 9 , further comprising a film layer between the carrier layer and the
absorbing layer which is permeable or becomes permeable during the moulding of the part, preferably a thermoplastic polyurethane film layer.

18 . The engine bay trim part according to claim 17 ,
wherein the trim part has an overall air flow resistance of less than 4000 N.s.m −3 measured according to current ISO 9053, using the direct airflow method (method A).

Assignees

• Autoneum Man Ag

Inventors

• Müller Christian
• Delmas Bertrand

Classifications

• B32B5/024

  Woven fabric · CPC title

• B32B3/266

  characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12 · CPC title

• B32B2262/0284

  Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT] · CPC title

• B32B27/08

  of synthetic resin · CPC title

• B32B2307/56

  Damping, energy absorption · CPC title