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US 8,557,375 B2Granted
Thermoplastic film for airbag covers
AssigneeBenecke-Kaliko AG
InventorsJürgen Bühring, Katja Fischer, Völker Hülsewede, Jürgen Marquardt, Hartmut Harnisch
Life of this patent
Estimating the term…
Abstract
A thermoplastic film for airbag covers contains a cover layer and a foam layer. The cover layer is made of at least two layers, having an outer layer and an inner layer, and an elongation at tear of the inner layer of the cover layer and of the foamed layer is considerably less than the elongation at tear of the outer layer of the cover layer.
Claims19
A thermoplastic film, comprising:
- a compact cover layer having a three-dimensionally structured surface;
- a foamed layer disposed on an underside of said compact cover layer, the thermoplastic film being applied in a shaping processing step to a support corresponding to a form of a component and thereby receiving its component form;
- and
- said compact cover layer being uniformly compliant and of an at least two-ply form, containing an outer ply without weakening lines and an inner ply without weakening lines adjacent said foamed layer, said inner ply of said compact cover layer and said foamed layer having an elongation at tear being less than an elongation at tear of said outer ply of said compact cover layer.
1 more element
An interior trim part for a motor vehicle, comprising:
- a thermoplastic film containing a compact cover layer having a three-dimensionally structured surface and a foamed layer disposed on an underside of said compact cover layer, said thermoplastic film being applied in a shaping processing step to a support corresponding to a form of a component and thereby receiving its component form, said compact cover layer being uniformly compliant and of an at least two-ply form at least in one of a region of airbag covers and in a region of tear-open seams of the airbag covers, said two-ply form having an outer ply without weakening lines and an inner ply without weakening lines adjacent said foamed layer, said inner ply of said compact cover layer and said foamed layer having an elongation at tear which is less than an elongation at tear of said outer ply of said cover layer.
A thermoplastic film, comprising:
- a compact cover layer having a three-dimensionally structured surface;
- a foamed layer disposed on an underside of said compact cover layer, the thermoplastic film being applied in a shaping processing step to a support corresponding to a form of a component and thereby receiving its component form;
- and
- said compact cover layer being uniformly compliant and of an at least two-ply form, containing an outer ply having a substantially uniform thickness and an inner ply having a substantially uniform thickness adjacent said foamed layer, said inner ply of said compact cover layer and said foamed layer having an elongation at tear being less than an elongation at tear of said outer ply of said compact cover layer.
1 more element
Dependencies are inferred from the claim text.