Multilayer film, laminate, airbag, and method of manufacturing laminate
AssigneesNitto Denko Corporation, Nitto Switzerland AG
InventorsYosuke Yamada, Toru Tagami, Michael Ludwig
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Abstract
A multilayer film, which is used upon being adhered to a fabric, includes an adhesive layer to be a side of the multilayer film to be adhered to the fabric; and a barrier layer bonded to the adhesive layer. Each of the adhesive layer and the barrier layer includes a thermoplastic polyester elastomer. A melting point of the barrier layer is higher than a melting point of the adhesive layer. A ratio value of a content ratio of a soft segment in the thermoplastic polyester elastomer in the adhesive layer with respect to a content ratio of a soft segment in the thermoplastic polyester elastomer in the barrier layer, is 5 or less.
Claims9
An airbag comprising:
- a fabric formed to have a shape of a bag;
- and
- a multilayer film including
- an adhesive layer adhered to the fabric;
- and
- a barrier layer bonded to the adhesive layer, wherein
- each of the adhesive layer and the barrier layer includes a thermoplastic polyester elastomer,
- a melting point of the barrier layer is equal to or greater than 180° C., and is higher than a melting point of the adhesive layer by at least 20° C., and
- a ratio value of a content ratio in wt % of a soft segment in the thermoplastic polyester elastomer in the adhesive layer with respect to a content ratio in wt % of a soft segment in the thermoplastic polyester elastomer in the barrier layer, is 5 or less.
Dependencies are inferred from the claim text.