Shock absorbing material

Details Shock absorbing material Shock absorbing material

1985-03-15

1986-12-09

Bertsch, Richard A.

Land vehicles

Wheeled

Running gear

280 89, 280751, B62D 116

Patent

active

046276386

ABSTRACT:
A shock absorbing material suited for use in automobile steering wheel comprises a core portion and a skin layer integrally formed on the core portion by foaming. The core portion and the skin layer are formed of isocyanurate ring-containing foam obtained by reacting polyhydroxy compounds having a hydroxyl value of 200 to 700, triethanolamine and polymethylene having a mean functional group number of 2.3 to 3.5 in an equivalent ratio of NCO/OH=2.5 to 5 in the presence of foaming agents and trimerization catalysts followed by foaming. It is important that the density of the skin layer is higher than that of the core portion. When the driver beats against the steering wheel in car accidents, the shock absorbing materials are deformed by absorbing impact force, thereby protecting the driver.

REFERENCES:
patent: 3644168 (1972-02-01), Bonk et al.
patent: 3934897 (1976-01-01), Moos
patent: 4015861 (1977-04-01), Finch
patent: 4365826 (1982-12-01), Iriyama
patent: 4383704 (1983-05-01), Yoshitsugu
patent: 4406176 (1983-09-01), Numazawa et al.
patent: 4452096 (1984-06-01), Workman

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