Paper comprising heat treated bio-soluble inorganic fibers, and method and equipment for making same

US8940134B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8940134-B2
Application numberUS-201113064643-A
CountryUS
Kind codeB2
Filing dateApr 5, 2011
Priority dateApr 5, 2011
Publication dateJan 27, 2015
Grant dateJan 27, 2015

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Abstract

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Inorganic fiber paper including bio-soluble inorganic fibers which have been subjected to a heat treatment and a binder. A method for producing inorganic fiber paper including: the first step of subjecting amorphous bio-soluble inorganic fibers to a heat treatment; and the second step of making paper comprising the heat-treated bio-soluble inorganic fibers and a binder. Equipment for heating and/or thermal insulation which includes the inorganic fiber paper.

First claim

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The invention claimed is: 1. Inorganic fiber paper comprising: bio-soluble inorganic fibers which have the following compositions: SiO 2 : 66 to 82 wt % CaO: 1 to 9 wt % MgO: 10 to 30 wt % Al 2 O 3 : 1 to 3 wt %, and which have been subjected to a heat treatment at a temperature at least 400° C., but lower than the crystallization temperature of the fibers, and a binder, which paper exhibits recovery after compression-heating of at least 60% of its pre-compression…

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What does patent US8940134B2 cover?
Inorganic fiber paper including bio-soluble inorganic fibers which have been subjected to a heat treatment and a binder. A method for producing inorganic fiber paper including: the first step of subjecting amorphous bio-soluble inorganic fibers to a heat treatment; and the second step of making paper comprising the heat-treated bio-soluble inorganic fibers and a binder. Equipment for heating an…
Who is the assignee on this patent?
Ishihara Tetsuya, Mihara Tetsuya, Yonaiyama Ken, and 2 more
What technology area does this patent fall under?
Primary CPC classification D21H13/36. Mapped technology areas include Textiles & Paper.
When was this patent published?
Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).