Paper making and fiber liberation – Apparatus – Running or indefinite length product forming and/or treating...
Reexamination Certificate
2006-08-15
2006-08-15
Hug, Eric (Department: 1731)
Paper making and fiber liberation
Apparatus
Running or indefinite length product forming and/or treating...
C162S306000, C162S901000, C442S064000, C442S067000, C442S071000, C428S167000
Reexamination Certificate
active
07090747
ABSTRACT:
A papermaking belt which prevents cracking and inhibits crack growth which includes a reinforcing substrate embedded in a thermosetting polyurethane layer so that the reinforcing substrate and the thermosetting polyurethane layer are integrated with each other and the outer peripheral surface and the inner peripheral surface of the belt are formed by polyurethane layers, the polyurethane layer forming the outer peripheral surface being made of a composition containing a urethane prepolymer having isocyanate groups on its ends and a hardener containing dimethylthiotoluenediamine.
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Hikida Takahisa
Watanabe Atsuo
Watanabe Atsushi
Hug Eric
Yamauchi Corporation
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