Title:
むち打ち傷害軽減用頭支え及びそれでの特別のポリウレタンフォームの使用
Document Type and Number:
Japanese Patent JP2004518572
Kind Code:
A
Abstract:
A headrest for alleviating whiplash injury and comprising at least one support member which is uprightly fixed to a seat and a cushioning member of polyurethane foam attached to said at least one support member and enclosed in a covering material is disclosed, wherein the polyurethane foam is one having the following properties: A) A density within the range of 50 to 100 kg/m3; B) a compressive strength between 0.9 and 3.5 mN/mm2 at 25% deformation and between 1.3 and 4.5 mN/mm2 at 40% deformation; C) a glass transition temperature, Tg (DSC), between -10° C. and +10° C., preferably -5° C. to +4° C.; D) a loss temperature peak maximum between 15 and 30° C.; E) a temperature range for the loss peak between -40° C. and +90° C.; and F) a loss peak area between 4.0 and 8.0.
Inventors:
Balzer, Gunner
Application Number:
JP2002560889A
Publication Date:
June 24, 2004
Filing Date:
January 21, 2002
Export Citation:
Assignee:
Balzer, Gunner
International Classes:
A47C7/38; B60N2/48; B60N2/70; C08G18/00; C08G101/00; (IPC1-7): B60N2/48; A47C7/38; C08G18/00
Attorney, Agent or Firm:
Takashima Ichi