Stock material or miscellaneous articles – Structurally defined web or sheet – Honeycomb-like
Reexamination Certificate
2008-06-12
2011-10-18
Baldwin, Gordon R (Department: 1784)
Stock material or miscellaneous articles
Structurally defined web or sheet
Honeycomb-like
C055S523000, C055S524000, C055S525000
Reexamination Certificate
active
08039086
ABSTRACT:
There is provided bonding material having a Young's Modulus after hardening of not less than 20% of articles to be bonded, and an average linear coefficient of thermal expansion after hardening of not more than 70% of the articles to be bonded. This bonding material can suppress deformation of a honeycomb segment due to thermal stress to be generated by a bonding material layer and can suitably be used at the time of manufacturing exhaust gas trapping filters capable of reducing the generation of defects such as a crack, and above all, a diesel particulate filter (DPF) for trapping particulate matter (particulates) in exhaust gas from the diesel engine.
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Fujita Hiroki
Tomita Takahiro
Baldwin Gordon R
NGK Insulators Ltd.
Oliff & Berridg,e PLC
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