It is provided an airbag multilayer complex excellent in flexibility and durability by controlling adhesion between an adhesive layer and a base fabric to a predetermined range, and an airbag using it. This disclosure is an airbag multilayer complex comprising a base fabric and a multilayer film including an outer layer and an adhesive layer that is bonded to one surface of the base fabric. The adhesive strength of the interface between the multilayer film and the base fabric is 5 N/cm or more, the difference in loop stiffness between the airbag multilayer complex and the base fabric is 130 mN/cm or less, the adhesive layer contains a first resin having a hydrogen-bonding capacity, and the difference in Hansen solubility parameter (ΔHSP) between the base fabric and the first resin is 5 MPa.sup.0.5 or less.

A passenger-side airbag includes a first side panel, a second side panel opposite the first side panel, a first center panel having a first side edge part toward the first side panel, a second side edge part opposite the first side edge part, and a first front face situated between the first side edge part and the second side edge part to face an occupant, and a second center panel having a third side edge part toward the second side panel, a fourth side edge part opposite the third side edge part, and a second front face situated between the third side edge part and the fourth side edge part to face an occupant, wherein the second side edge part has a flange projecting in an opposite direction from the first side edge part, and the flange is bonded to the fourth side edge part such that the second front face bulges relative to the first front face.

A sewn airbag includes a plurality of base fabrics sewn together, wherein in a sewn region where reinforcement is required, a reinforcing coating film made of an adhesive coating material that is adhesive to both a sewing yarn and fibers forming the base fabrics is formed on at least one of the upper and lower surfaces of the sewn region, the reinforcing coating film having the smallest possible width along a stitching region in the form of one or more strips forming the sewn region made with the sewing yarn.

A laminate includes a fabric; and a thermoplastic film, wherein the thermoplastic film is a multilayer film including an adhesive layer including a thermoplastic polyester elastomer and a barrier layer that is bonded to the adhesive layer, and that has a melting point that is higher than a melting point of the adhesive layer, and that includes a polymer, and wherein the fabric includes a polyester, and the fabric has a fabric weight of 190 g/m.sup.2 or less.

The present disclosure provides advantageous hybrid knitted fabrics and composite materials including hybrid knitted fabrics, and improved systems/methods for utilizing and/or fabricating the hybrid knitted fabrics and composite materials. More particularly, the present disclosure provides layered composite materials including hybrid knitted fabrics, the layered composite materials advantageously configured for non-score deployable passenger airbag applications.

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, the adhesive layer including a thermoplastic polyester elastomer and a polymer having a Shore D hardness of less than 80; and a barrier layer bonded to the adhesive layer, the barrier layer including a thermoplastic elastomer.

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.

An airbag includes a bag body and an inlet port section of inflation gas. As a gas receivable region, the bag body includes a front main inflatable region, a rear main inflatable region, a feed path that feeds the inflation gas from the inlet port section to the front and rear main inflatable regions, and a sub inflatable region that absorbs the gas from the front main inflatable region when a pressure of the front main inflatable region soars. A front partitioning region partitions the front main inflatable region from the sub inflatable region. The front partitioning region is disposed in front of a front end of an upper partitioning region in an island-like fashion remote from other uninflatable region so as to provide, at the rear of and there beneath, one each communication passage that provides gas communication between the front main inflatable region and the sub inflatable region.

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.

A laminate includes a fabric; and a thermoplastic film, wherein the thermoplastic film is a multilayer film including an adhesive layer including a thermoplastic polyester elastomer and a barrier layer that is bonded to the adhesive layer, and that has a melting point that is higher than a melting point of the adhesive layer, and that includes a polymer, and wherein the fabric includes a polyester, and the fabric has a fabric weight of 190 g/m.sup.2 or less.