US5332701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic synthesis by pyrolysis of metal-containing polymer and metal
Assignee: Massachusetts Institute of Technology
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Filing: 1990-12-14
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Granted: 1994-07-26
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Expires: 2010-12-14
Abstract
Abstract Ceramic compositions can be formed by the pyrolysis of a particulate metal, which forms a component of the ceramic, and another metal, which forms another component of the ceramic.
Inventors
- 👤 Nathan Bryson
- 👤 Dietmar Seyferth
- 👤 Henry J. Tracy
- 👤 David P. Workman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:45
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/56; C04B35/5607; C04B35/5622; C04B35/5611; C04B35/5626; C04B35/565; C04B35/571; C04B35/573; C04B35/58; C04B35/58007; C04B35/58014; C04B35/58028; C04B35/5805; C04B35/58064; C04B35/58071; C04B35/58078; C04B35/58085; C04B35/58092; C04B35/581
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
51 words
A process for forming a ceramic consisting essentially of the pyrolysis product of a particulate metallic material and an organometallic polymer, said process consisting essentially of (A) mixing a particulate metallic material and an organometallic polymer containing a metal different than that of the metallic material; and (B) pyrolyzing said mixture.
Claim 2
Dependent Claim
51 words
A process for forming a ceramic consisting essentially of the pyrolysis product of a particulate metallic material and an organometallic polymer, said process consisting essentially of (A) mixing a particulate metallic material and an organometallic polymer containing a metal different than that of the metallic material; and (B) pyrolyzing said mixture.
Claim 3
Dependent Claim
14 words
A process as claimed in claim 1 wherein the polymer is an organosilicon polymer.
Claim 4
Dependent Claim
14 words
A process as claimed in claim 1 wherein the polymer is an organoboron polymer.
Claim 5
Dependent Claim
15 words
A process as claimed in claim 1 wherein the particulate metallic material is elemental metal.
Claim 6
Dependent Claim
16 words
A process as claimed in claim 1 wherein the particulate metallic material is a metallic hydride.
Claim 7
Dependent Claim
15 words
A process as claimed in claim 1 wherein the polymer contains both silicon and boron.
Claim 8
Dependent Claim
19 words
A process as claimed in claim 1 wherein the polymer contains both silicon and one or more transition metals.
Claim 9
Dependent Claim
19 words
A process as claimed in claim 1 wherein the polymer contains both boron and one or more transition metals.
Claim 10
Dependent Claim
19 words
A process as claimed in claim 1 wherein the polymer contains silicon, boron and one or more transition metals.
Claim 11
Dependent Claim
55 words
A process for forming a ceramic consisting essentially of the pyrolysis product of a particulate metallic material and a non-oxygen containing organometallic polymer, said process consisting essentially of (A) mixing a particulate metallic material and a non-oxygen containing organometallic polymer containing a metal different than that of the metallic material; and (B) pyrolyzing said mixture.
Claim 12
Dependent Claim
55 words
A process for forming a ceramic consisting essentially of the pyrolysis product of a particulate metallic material and a non-oxygen containing organometallic polymer, said process consisting essentially of (A) mixing a particulate metallic material and a non-oxygen containing organometallic polymer containing a metal different than that of the metallic material; and (B) pyrolyzing said mixture.
Claim 13
Dependent Claim
14 words
A process as claimed in claim 1 wherein the polymer is an organosilicon polymer.
Claim 14
Dependent Claim
14 words
A process as claimed in claim 1 wherein the polymer is an organoboron polymer.
Claim 15
Dependent Claim
15 words
A process ad claimed in claim 1 wherein the particulate metallic material is elemental metal.
Claim 16
Dependent Claim
14 words
A process as claimed in cl aim 1 particulate metallic material is metallic hydride.
Claim 17
Dependent Claim
15 words
A process as claimed in claim 1 wherein the polymer contains both silicon and boron.
Claim 18
Dependent Claim
19 words
A process as claimed in claim 1 wherein the polymer contains both silicon and one or more transition metals.
Claim 19
Dependent Claim
19 words
A process as claimed in claim 1 wherein the polymer contains both boron and one or more transition metals.
Claim 20
Dependent Claim
19 words
A process as claimed in claim 1 wherein the polymer contains silicon, boron and one or more transition metals.
References Cited (Backward Citations)
JPS5352521A
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JPS5777083A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-07-25 | 1998-01-24 | 1998-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-25 | 2002-01-24 | 2002-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-25 | 2006-01-24 | 2006-07-26 | $7700.00 | Window Closed / Lapsed |