| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-asbestors joint sheet containing a large amount of a carbon fiber and being excellent in heat resistance, vapor resistance, etc. SOLUTION: The non-asbestors joint sheet which is one formed from a joint- sheet-forming composition containing (i) a non-asbestors base fiber containing a carbon fiber, (ii) rubber chemicals, and (iii) a filler, wherein the ratio R (nm) is 10-25 (nm), wherein the ratio R is calculated from formula I: rate R (nm)=ärubber amount G (m<SP>3</SP>)/ΣA (m<SP>2</SP>)}×10<SP>9</SP>(whereinΣA (m<SP>2</SP>) is the total sum of surface areas A (m<SP>2</SP>) each determined from the products of the respective weights (g) of components (i) and (v) of their respective specific surface areas Hssa (m<SP>2</SP>/g), and G is the rubber amount (m<SP>3</SP>). COPYRIGHT: (C)2004,JPO
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