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US5034550A
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US
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Process for forming mixed heavy bimetal alkoxide-carboxylate compositions and novel compositions thereof
Assignee: Akzo NV
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Filing: 1990-06-07
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Granted: 1991-07-23
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Expires: 2010-06-07
Abstract
Abstract Mixed heavy bimetallic alkoxide-carboxylate compositions are formed by reaction of a heavy metal tetraalkoxide (e.g., a zirconium alkoxide) and a heavy metal tricarboxylate (e.g., yttrium acetate) with elimination of distillable ester by-product therefrom. Hydrolysis of said compositions produced novel bimetallic hydroxy-carboxylates. Calcination of the hydrolysis products give bimetallic oxides.
Inventors
- 👤 Fawzy G. Sherif
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:30
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/003
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
34 words
A process for forming a mixed heavy bimetallic alkoxide-carboxylate composition which comprises reacting a heavy metal tetraalkoxide and a different heavy metal tricarboxylate under substantially anhydrous conditions with elimination of distillable ester by-product therefrom.
Claim 2
Dependent Claim
34 words
A process for forming a mixed heavy bimetallic alkoxide-carboxylate composition which comprises reacting a heavy metal tetraalkoxide and a different heavy metal tricarboxylate under substantially anhydrous conditions with elimination of distillable ester by-product therefrom.
Claim 3
Dependent Claim
17 words
A process as claimed in claim 1 wherein at least one heavy metal is a transition metal.
Claim 4
Dependent Claim
21 words
A process as claimed in claim 2 wherein the transition metal is selected from the group consisting of yttrium and zirconium.
Claim 5
Dependent Claim
16 words
A process as claimed in claim 1 wherein the process is conducted in an organic solvent.
Claim 6
Dependent Claim
13 words
A process as claimed in claim 1 wherein the carboxylate is an acetate.
Claim 7
Dependent Claim
17 words
A process as claimed in claim 5 wherein at least one heavy metal is a transition metal.
Claim 8
Dependent Claim
16 words
A process as claimed in claim 6 wherein yttrium and zirconium are present as heavy metals.
Claim 9
Dependent Claim
18 words
A process as claimed in claim 1 where the process is conducted in the substantial absence of solvent.
Claim 10
Dependent Claim
16 words
A process as claimed in claim 1 where the process is conducted in a non-polar solvent.
Claim 11
Dependent Claim
21 words
A process as claimed in claim 7 wherein the yttrium to zirconium molar ratio varies from about 1:10 to about 10:1.
Claim 12
Dependent Claim
33 words
A process as claimed in claim 1 wherein the mixed heavy metal alkoxide carboxylate composition is hydrolyzed with water in a non-aqueous solvent to yield a powder suitable for ceramic plasma spray coatings.
Claim 13
Dependent Claim
39 words
A novel composition comprising a bimetallic alkoxide-carboxylate composition of the formula (R.sup.1 (O)CO).sub.2 M.sup.1 --O--M(OH)(OR).sub.2 where M 1 is a trivalent heavy metal, M is a tetravalent heavy metal, and R is alkyl and R 1 is lower alkyl.
Claim 14
Dependent Claim
39 words
A novel composition comprising a bimetallic alkoxide-carboxylate composition of the formula (R.sup.1 (O)CO).sub.2 M.sup.1 --O--M(OH)(OR).sub.2 where M 1 is a trivalent heavy metal, M is a tetravalent heavy metal, and R is alkyl and R 1 is lower alkyl.
Claim 15
Dependent Claim
34 words
A novel mixed heavy metal alkoxide carboxylate having the formula ##STR8## where M is a tetravalent heavy metal, M 1 is a trivalent heavy metal, R is alkyl and R 1 is lower alkyl.
Claim 16
Dependent Claim
34 words
A novel mixed heavy metal alkoxide carboxylate having the formula ##STR8## where M is a tetravalent heavy metal, M 1 is a trivalent heavy metal, R is alkyl and R 1 is lower alkyl.
Claim 17
Dependent Claim
34 words
A novel mixed heavy metal carboxylate hydroxide having the formula (R.sup.1 (O)CO).sub.2 --M.sup.1 --O--M(OH).sub.3 where M is a tetravalent heavy metal, M 1 is a trivalent heavy metal, and R 1 is lower alkyl.
Claim 18
Dependent Claim
34 words
A novel mixed heavy metal carboxylate hydroxide having the formula (R.sup.1 (O)CO).sub.2 --M.sup.1 --O--M(OH).sub.3 where M is a tetravalent heavy metal, M 1 is a trivalent heavy metal, and R 1 is lower alkyl.
Claim 19
Dependent Claim
36 words
A novel mixed heavy metal carboxylate hydroxide having the formula (R.sup.1 (O)CO).sub.2 --M.sup.1 --O--M(OH).sub.2 --O--M(OH).sub.3.H.sub.2 O where M is a tetravalent heavy metal, M 1 is a trivalent heavy metal, and R 1 is lower alkyl.
Claim 20
Dependent Claim
36 words
A novel mixed heavy metal carboxylate hydroxide having the formula (R.sup.1 (O)CO).sub.2 --M.sup.1 --O--M(OH).sub.2 --O--M(OH).sub.3.H.sub.2 O where M is a tetravalent heavy metal, M 1 is a trivalent heavy metal, and R 1 is lower alkyl.
Claim 21
Dependent Claim
33 words
A mixed heavy metal oxide condensation product having a repeat unit selected from the group consisting of: ##STR9## where M is a tetravalent heavy metal and M 1 is a trivalent heavy metal.
Claim 22
Dependent Claim
33 words
A mixed heavy metal oxide condensation product having a repeat unit selected from the group consisting of: ##STR9## where M is a tetravalent heavy metal and M 1 is a trivalent heavy metal.
Claim 23
Dependent Claim
22 words
A condensation product as claimed in claim 16 wherein the ratio of M 1 can range from about 1:10 to about 10:1.
References Cited (Backward Citations)
US4609755A
Cited
US4681959A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1994-07-22 | 1995-01-21 | 1995-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-22 | 1999-01-21 | 1999-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-22 | 2003-01-21 | 2003-07-23 | $7700.00 | Window Closed / Lapsed |