Bio-soluble inorganic fiber

Patent metadata

Field	Value
Publication number	US-2017197872-A1
Application number	US-201415324046-A
Country	US
Kind code	A1
Filing date	Oct 15, 2014
Priority date	Aug 8, 2014
Publication date	Jul 13, 2017
Grant date	—

Abstract

Inorganic fibers including the following composition, SiO 2 , MgO and CaO being main components: SiO 2 : 73.6 wt % to 85.9 wt %, MgO: 9.0 wt % to 21.3 wt %, CaO: 5.1 wt % to 12.4 wt %, Al 2 O 3 : 0 wt % or more and less than 2.3 wt %, and Fe 2 O 3 : 0 wt % to 0.50 wt %.

First claim

1 . Inorganic fibers comprising the following composition, SiO 2 , MgO and CaO being main components:
SiO 2 : 73.6 wt % to 85.9 wt % MgO: 9.0 wt % to 15.0 wt % CaO: 5.1 wt % to 12.4 wt % Al 2 O 3 : 0 wt % or more and less than 2.3 wt % Fe 2 O 3 : 0 wt % to 0.50 wt % SrO: less than 0.1 wt %.

2 . The inorganic fibers according to claim 1 , which comprise the following composition:
SiO 2 : 74.0 wt % to 80.0 wt % MgO: 9.0 wt % to 15.0 wt % CaO: 5.1 wt % to 12.4 wt % Al 2 O 3 : 0 wt % or more and less than 2.3 wt % Fe 2 O 3 : 0 wt % to 0.50 wt % SrO: less than 0.1 wt %.

3 . The inorganic fibers according to claim 1 , which comprise MgO in an amount of 9.0 wt % to 14.0 wt %.

4 . The inorganic fibers according to claim 1 , which comprise Al 2 O 3 in an amount of 0.17 wt % to 2.2 wt %.

5 . The inorganic fibers according to claim 1 , which comprise ZrO 2 in an amount of more than 0.1 wt % and 10.9 wt % or less.

6 . The inorganic fibers according to claim 1 , which comprise TiO 2 in an amount of more than 0.1 wt % and 10.9 wt % or less.

7 . The inorganic fibers according to claim 1 , which comprise alkali metal oxide in an amount of more than 0.01 mol % and less than 0.20 mol %.

8 . The inorganic fibers according to claim 1 , which comprise B 2 O 3 in an amount of less than 0.1 wt %.

9 . The inorganic fibers according to claim 1 , wherein the total of the amounts of SiO 2 , MgO and CaO is 90.0 wt % or more.

10 . The inorganic fibers according to claim 1 , wherein the total of the amounts of SiO 2 , MgO and CaO is 93.0 wt % or more.

11 . The inorganic fibers according to claim 1 , wherein the total of the amounts of SiO 2 , MgO and CaO is 96.0 wt % or more.

12 . A secondary product or composite material produced by using the inorganic fibers according to claim 1 .

Assignees

• Nichias Corp

Inventors

• Iwata Koji
• Kitahara Hideki
• Yonaiyama Ken
• Soeda Kazuki
• Miki Tatsuro

Classifications

• D01F9/08 Primary

  of inorganic material (working or processing of metal wire B21F; from softened glass, minerals or slags C03B37/00) · CPC title

• C03C4/20

  for chemical resistant glass · CPC title

• C03C2213/02

  Biodegradable glass fibres · CPC title

• D01D5/08

  Melt spinning methods {(D01D5/0023 takes precedence)} · CPC title

• C03C13/00 Primary

  Fibre or filament compositions (manufacture of fibres or filaments C03B37/00) · CPC title