发明名称 |
Visco-elastic material comprising a polymeric foam impregnated with an acrylic resin |
摘要 |
A padded stocking, suitable as footwear in conjunction with a ski boot or the like, is provided comprising a stocking having affixed to the ankle and shin region thereof a conformable layer of a visco-elastic material, such as a flexible open-cell polyurethane foam impregnated with an acrylic resin, which functions as a padding, said conformable layer having retarded deformation and recovery characteristics such that said layer with a thickness of at least 1/8 inch has a compression modulus of 1 to 15 pounds per square inch when measured at a deformation rate of 2 inches per minute and a plot of said compression modulus versus time yields a curve with a slope of -0.3 to -2.0 pounds per square inch per second when said layer is compressed at deformation rates of 2 to 20 inches per minute.
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申请公布号 |
US4008350(A) |
申请公布日期 |
1977.02.15 |
申请号 |
US19720285320 |
申请日期 |
1972.08.31 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
CRAWFORD, GEORGE H.;SMITH, II, HOWELL K. |
分类号 |
A41B11/00;A41B11/02;A41D13/06;C08J9/42;(IPC1-7):B32B3/26;B32B5/18 |
主分类号 |
A41B11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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