Paper making and fiber liberation – Processes and products – Utilizing electrical or wave energy
Reexamination Certificate
2011-04-19
2011-04-19
Daniels, Matthew J (Department: 1741)
Paper making and fiber liberation
Processes and products
Utilizing electrical or wave energy
C162S146000, C162S157300, C428S474400
Reexamination Certificate
active
07927461
ABSTRACT:
An aramid paper made from aramid fibrid and short fiber and formed into a paper shape has two sides and a surface and includes a thermal bonding face located in at least one of the sides of the aramid paper, the thermal bonding face having such a property as to be directly thermally bondable with another sheet of aramid paper of the same material or a polyester film at a thermal bonding temperature ranging from 90° C. to 200° C. when a plasma treatment is applied to the surface of the aramid paper. The plasma treatment has an intensity ranging from 30 W·min/m2to 1500 W·min/m2, and the thermal bonding face has a composition ratio (O/C) of the number of oxygen atoms (O) to the number of carbon atoms (C) ranging between 150% and 230% of a theoretical value of an atom number ratio.
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Inoue Tetsuo
Yokura Miyoshi
Calandra Anthony J
Daniels Matthew J
Kawamura Sangyo Co., Ltd.
Thomas & Karceski, P.C.
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