Polyhydridosilanes and their conversion to pyropolymers
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
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| 출원번호 |
US-0729365
(1985-05-01)
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발명자
/ 주소 |
- Brown-Wensley Katherine A. (Lake Elmo MN) Sinclair Robert A. (St. Paul MN)
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| 출원인 / 주소 |
- Minnesota Mining and Manufacturing Company (St. Paul MN 02)
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| 인용정보 |
피인용 횟수 :
31 인용 특허 :
12 |
초록
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A polyhydridosilane has a catenated silicon backbone of 9 to 4000 silicon atoms with an average number of hydrogen atoms per silicon atom in the range of 0.3 to 2.2, at least 0.1 gram of the polyhydridosilane being soluble at 20°C. in 100 grams of tetrahydrofuran, toluene, or methylene chloride. The
A polyhydridosilane has a catenated silicon backbone of 9 to 4000 silicon atoms with an average number of hydrogen atoms per silicon atom in the range of 0.3 to 2.2, at least 0.1 gram of the polyhydridosilane being soluble at 20°C. in 100 grams of tetrahydrofuran, toluene, or methylene chloride. The polyhydridosilane can be derivatized or it can be converted to a pyropolymer or a nitrogen-containing pyropolymer which is useful as an abrasive, ceramic, electrical, or electro-optical material.
대표청구항
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A method comprising the step of: (a) subjecting a polyhydridosilane, which polyhydridosilane has a backbone consisting essentially of repeating monomeric units having the formula [Figure] where R is the same or different and is independently selected from the group consisting of (1) hydrogen, (2) a
A method comprising the step of: (a) subjecting a polyhydridosilane, which polyhydridosilane has a backbone consisting essentially of repeating monomeric units having the formula [Figure] where R is the same or different and is independently selected from the group consisting of (1) hydrogen, (2) a linear, branched, or cyclic aliphatic group having 1 to 10 carbon atoms and optionally containing at least one Periodic Group VA or VIA atom, (3) an aromatic group which is unsubstituted or substituted by up to three C1 to C10 linear, branched, or cyclic aliphatic groups, said aromatic or aliphatic groups optionally containing at least one Periodic Group Va or VIA atom, the total number of carbon atoms being up to 25, (4) a single bond connecting two silicon atoms, (5) a metal atom selected from the group consisting of Periodic Groups IA and IIA, and (6) an inorgano- and organometallic group comprising at least one Periodic Group IB to, VIIB, VIII, Lanthanide or Actinide element, with the proviso that the ratio of hydride to silicon is in the range of 0.3 to 2.2 and the average number of monomeric units of said formula in the polymer is in the range of 9 to 4,000, to pyrolysis over a temperature range of 200°to 2000°C. in a vacuum or an inert atmosphere and optionally in the presence of a nitrogen-containing compound to provide a pyropolymer having at least one group selected from silicon, silicon carbide, silicon nitride, and carbon.
이 특허에 인용된 특허 (12)
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Hirai Toshio (4-91 ; Takamori 3-Chome Izumi JPX) Goto Takashi (2-12-304 ; Kuromatsu 3-Chome Izumi JPX), Electrically conductive Si
3N4-C series amorphous material and a method of producing the same.
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Hatta Tokuaki (Kitakyushu JPX) Ueno Haruyuki (Kitakyushu JPX) Katsura Yuji (Kitakyushu JPX) Fukuda Kazushige (Kitakyushu JPX) Kubota Hiroshi (Kitakyushu JPX) Hamamatu Takashi (Kitakyushu JPX), Flaky
b
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