发明名称 |
Sheet structures having improved compression performance |
摘要 |
This invention relates to a pressboard comprising a plurality of plies having thermostable floc and at least 40 weight percent aramid fibrids, the pressboard having a final average thickness of 0.9 mm or greater, the pressboard further having an a void content of 25 volume percent or less and a ply adhesion (Y) in megapascals defined by the equation Y>2.97(X)(-0.25) wherein (X) is the thickness of the pressboard in millimeters; the pressboard can have a compressibility of 1.6 percent or less and compression set of 0.18 percent or less. |
申请公布号 |
US8431213(B2) |
申请公布日期 |
2013.04.30 |
申请号 |
US20090615447 |
申请日期 |
2009.11.10 |
申请人 |
LEVIT MIKHAIL R.;E I DU PONT DE NEMOURS AND COMPANY |
发明人 |
LEVIT MIKHAIL R. |
分类号 |
B32B27/02;B32B5/02;D21H13/26 |
主分类号 |
B32B27/02 |
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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