公开(公告)号：JPH02154100A

公开(公告)日：1990-06-13

申请号：JP30701788

申请日：1988-12-06

Applicant: N R D KK

Inventor： NISHIMURA MAKOTO

IPC: D21H13/50 ,  D21H17/33 ,  D21H27/00

Abstract: PURPOSE:To obtain the subject sheet, capable of improving mechanical strength in a state of held flexibility of an exothermic sheet itself and excellent in heat resistance by impregnating the exothermic sheet containing carbon fibers and pulp with a resin having a high heat distortion temperature. CONSTITUTION:The objective sheet obtained by forming a raw material containing carbon fibers (preferably pitch- or PAN-based carbon fibers which are high-elastic modulus carbon fibers) and pulp (e.g. vegetable or synthetic pulp) into the shape of a sheet and impregnating the resultant sheet with a resin having >=60 deg.C heat distortion temperature (e.g. phenolic, polyester, epoxy, vinyl chloride resin, PS, ABS resin or polyamide).

公开(公告)号：JPH02154099A

公开(公告)日：1990-06-13

申请号：JP30701688

申请日：1988-12-06

Applicant: N R D KK

Inventor： NISHIMURA MAKOTO

IPC: H05B3/14 ,  D21H13/50 ,  D21H27/00

Abstract: PURPOSE:To obtain the subject sheet having stable electrical resistance and temperature characteristics, specific thickness and basis weight by containing pitch-based carbon fibers having two or more different lengths, PAN (polyacrylonitrile)-based carbon fibers and vegetable pulp in the sheet. CONSTITUTION:The objective sheet, obtained by making 3-20wt.% pitch-based or PAN-based carbon fibers having at least two or more different lengths of 3-5mm and 5-10mm lengths and 97-80wt.% vegetable pulp, such as wood fiber or ramie, flow in water with a stirrer preferably for 10-50min, mixing and dispersing the fibers and pulp, as necessary, adding a defoaming agent, etc., and forming a sheet and having basis weight.