Tire

Patent metadata

Field	Value
Publication number	US-11027577-B2
Application number	US-201716069061-A
Country	US
Kind code	B2
Filing date	Jan 27, 2017
Priority date	Jan 29, 2016
Publication date	Jun 8, 2021
Grant date	Jun 8, 2021

Abstract

The provided tire has excellent durability regardless of use in a high-humidity environment or contact with water, even though the framework member of the tire is made of a resin material. The resin material is made of a resin composition including 60 mass % or more of a polyamide resin formed by polymerizing an aliphatic diamine having 6 to 20 carbon atoms and an aliphatic dicarboxylic acid having 10 to 20 carbon atoms.

First claim

The invention claimed is:

1. A tire comprising:
an attachment body to be attached to an axle;
a ring member including an inner cylinder externally covering the attachment body and an outer cylinder surrounding the inner cylinder from a tire radial outer side;
a plurality of connecting members arranged along a tire circumferential direction between the inner cylinder and the outer cylinder and connecting the inner cylinder and the outer cylinder to each other; and
a tread member made of vulcanized rubber and located on the tire radial outer side of the outer cylinder of the ring member;
wherein the tire is a non-pneumatic tire,
the ring member and the connecting members form a framework member and are made of a resin material;
wherein the resin material is made of a resin composition including 60 mass % or more of a polyamide resin formed by polymerizing an aliphatic diamine having 6 to 20 carbon atoms and an aliphatic dicarboxylic acid having 10 to 20 carbon atoms, and 40 mass % or less of a flexible component having a glass transition temperature of 0° C. or lower,
the flexible component includes poly α-olefin, and
maleic anhydride is copolymerized with or grafted onto at least a portion of the poly α-olefin.

Assignees

• Bridgestone Corp

Inventors

• Nakajima Daisuke

Classifications

• C08L77/06 Primary

  Polyamides derived from polyamines and polycarboxylic acids (C08L77/10 takes precedence) · CPC title

• B60C7/146

  extending substantially radially, e.g. like spokes · CPC title

• B60C7/18

  disposed radially relative to wheel axis · CPC title

• C08L23/26

  modified by chemical after-treatment (saponified copolymers C08L23/0861; unsaturated acid salts C08L23/0876) · CPC title

• C08L101/00

  Compositions of unspecified macromolecular compounds · CPC title