Energy absorber
AssigneeToyota Boshoku Kabushiki Kaisha
InventorsMasayuki Kito, Goro Takahashi, Toshihiro Suzuki, Yasuyuki Shimizu, Yohei Migaki
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Abstract
Disclosed herein is an energy absorber having excellent impact resistance and excellent impact energy absorbability. The energy absorber includes an olefin-based resin composition obtained by mixing an olefin resin, a polyamide resin, and an elastomer having a reactive group that reacts with the polyamide resin, wherein the olefin-based resin composition has a continuous phase containing the olefin resin and a polyamide resin-based dispersed phase dispersed in the continuous phase, and the polyamide resin-based dispersed phase has a structure in which the elastomer is contained in a matrix phase containing the polyamide resin.
Claims8
An energy absorber comprising an olefin-based resin composition,
- wherein the olefin-based resin composition has a continuous phase containing the olefin resin, and a polyamide resin-based dispersed phase dispersed in the continuous phase,
- wherein the polyamide resin-based dispersed phase has a structure in which the elastomer is contained in a matrix phase containing the polyamide resin,
- wherein the energy absorber is obtained by mixing by dry-blending and melt-kneading a polyamide resin and an elastomer to obtain a first kneaded product, and then mixing by dry-blending and melt-kneading the first kneaded product with a polyolefin resin, and
- wherein the polyolefin resin is a block copolymerized resin having an ethylene block as a dispersed phase, and
- wherein at least part of the ethylene block is aggregated at an interface between the continuous phase and the dispersed phase.
Dependencies are inferred from the claim text.