Nhk Spring Co., Ltd.

Mitsui Chemicals, Inc.

Shigeki Ichimura

Koichi Kusakawa

Akira Uchiyama

Kunio Asobe

Hiroyuki Orito

Takaharu Matsuo

Toshiharu Sato

Kiyoshi Ota

Shinobu Haga

Kunikazu Takiwaki

Hitoshi Komatsu

Masaharu Murakami

Taiki Futamura

Provided is a foamed urethane containing a cushion material, the foamed urethane containing a hard segment and a soft segment, in which the foamed urethane is a reaction cured product formed using an isocyanate component of an MDI compound. In a first aspect, a spin-spin relaxation time (T2) of the hard segment in the foamed urethane is from 20 &#x3bc;sec to 40 &#x3bc;sec, and a volume abundance ratio of the hard segment is from 5% to 40%. In a second aspect, a foamed urethane includes: a first region in which T2 of the hard segment is from 30 &#x3bc;sec to 40 &#x3bc;sec, and a volume abundance ratio of the hard segment is from 10% to 40%, and a second region in which T2 of the hard segment is from 20 &#x3bc;sec to less than 30 &#x3bc;sec, and a volume abundance ratio of the hard segment is from 5% to 40% in a Hsolid-state pulse NMR measurement, and which is adjacent to the first region.

Cushion material, seat cushion material, and seat

Surface-decorated foam skin of cross-linked rubbery soft olefin resin

A foamed pad material for low-pressure compression molding which comprises a crosslinked rubbery olefinic soft resin foam and exhibits (a) a hysteresis loss of not greater than 40%, (b) a gel fraction of 20 to 98%, and (c) a density of 0.025 to 0.30 g/cm.sup.3. This foamed pad material is excellent in heat weldability with core forming materials and exhibits excellent heat resistance, strain resistance, moldability and restoring properties at the time of low-pressure compression molding at which compression and drawing are carried out at high temperatures. Moreover, the foamed pad material can allow the molded skin material to have cushioning properties with high flexibility and further to have improved feeling.

Foamed pad material for low-pressure compression molding

Growing community of inventors

Komagane, Japan

Shigeki Ichimura