发明名称 |
NONWOVEN FABRIC, FELT AND MANUFACTURING METHOD THEREOF |
摘要 |
<p>A nonwoven fabric which contains pitch-based carbon fibers having a high elongation and a high elastic modulus which are not attained in the prior art and is obtained by improving the tensile elongation which was defect of carbon fibers derived from mesophase pitch, a felt obtained from the nonwoven fabric, and production processes therefor. The nonwoven fabric contains pitch-based carbon fibers, wherein the pitch-based carbon fibers have (i) an average fiber diameter (D1) measured by an optical microscope of more than 2 µm and 20 µm or less, (ii) a percentage of the degree of fiber diameter distribution (S1) to average fiber diameter (D1) measured by an optical microscope of 3 to 20 %, (iii) a tensile elastic modulus of 80 to 300 GPa and (iv) a tensile elongation of 1.4 to 2.5 %.</p> |
申请公布号 |
EP2287374(A1) |
申请公布日期 |
2011.02.23 |
申请号 |
EP20090762305 |
申请日期 |
2009.02.25 |
申请人 |
TEIJIN LIMITED |
发明人 |
SAKURAI, HIROSHI;HARA, HIROSHI;SANO, HIROKI;ONOUE, SHUHEI;NAKAMOTO, YUKIO;OSAWA, YOSHIO;TAKAGI, SHOICHI |
分类号 |
D01F9/145;D04H1/42;D04H1/4242;D04H1/488 |
主分类号 |
D01F9/145 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|