EP0197686A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Improvements in the formation of gels and fibres
Assignee: Clinotherm Ltd
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Filing: 1986-03-20
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Granted: —
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Expires: 2006-03-20
Abstract
Abstract A precursor solution from which a filament may be drawn or a monolithic material set is based on an aluminium halohydrate organic complex. The complex is formed from the halohydrate and a polyol.
Inventors
- 👤 Harold Garton Emblem
- 👤 Kenneth Jones
- 👤 Jonathon Mark Boulton
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 19:52
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/62227; C04B35/62231; C04B35/62236; C01; C01F; C01F7/00; C01F7/02; C01F7/34; C01F7/36; C01P; C01P2006/00; C01P2006/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
109 words
A process for the preparation of a fibre and/or a monolithic material comprising forming a homogeneous solution by dissolving in water, or in a C l - C 4 alcohol or in a mixture of water and a C 1 - C 4 alcohol an aluminium halohydrate organic complex formed from an aluminium halohydrate and a polyol containing 2 to 6 carbon atoms and at least 2 hydroxy groups, optionally including an organic silicate containing at least one C 1 - C 6 alkoxy group and evaporating solvent until the solution forms a filament or clear coherent gel which on firing forms a ceramic fibre or a monolithic material.
Claim 2
Dependent Claim
109 words
A process for the preparation of a fibre and/or a monolithic material comprising forming a homogeneous solution by dissolving in water, or in a C l - C 4 alcohol or in a mixture of water and a C 1 - C 4 alcohol an aluminium halohydrate organic complex formed from an aluminium halohydrate and a polyol containing 2 to 6 carbon atoms and at least 2 hydroxy groups, optionally including an organic silicate containing at least one C 1 - C 6 alkoxy group and evaporating solvent until the solution forms a filament or clear coherent gel which on firing forms a ceramic fibre or a monolithic material.
Claim 3
Dependent Claim
34 words
A process as claimed in Claim 1 wherein the homogenous solution contains salts or alkoxides of other elements which assist in the formation of or enhance the properties of the filaments or ceramic fibres.
Claim 4
Dependent Claim
21 words
A process as claimed in Claim 2 wherein the additive is a chloride selected from the group calcium, magnesium chromium, zirconium.
Claim 5
Dependent Claim
15 words
A process as claimed in Claim 2 wherein the additive is an alkoxide of boron.
Claim 6
Dependent Claim
54 words
A process as claimed in any of the preceding claims wherein the polyols are selected from the group comprising: 1, 2 propylene glycol 1, 1, 1 trimethylolpropane 1, 3 butane diol 1, 2, 3 trihydroxypropane 2 methyl 2, 4 pentanediol 2, 2 dimethyl 1, 3 dihydroxypropane and the aluminium halohydrate is an aluminium chlorhydrate.
Claim 7
Dependent Claim
20 words
A process as claimed in any of the preceding claims wherein the solvent is a mixture of ethanol and water.
Claim 8
Independent Claim
23 words
A method as claimed in any of the preceding claims wherein the organic silicate is technical ethyl silicate as defined in the specification.
Claim 9
Dependent Claim
81 words
The use of a homogeneous solution formed by dissolving in water, or in a C 1 - C 4 alcohol or in a mixture of water and a C 1 - C 4 alcohol an aluminium chlorhydrate organic complex formed from an aluminium chlorhydrate and a polyol containing 2 to 6 carbon atoms and at least 2 hydroxy groups, optionally including an organic silicate containing at least one C 1 - C 6 alkoxy group as a precursor for drawing filaments.
Claim 10
Dependent Claim
81 words
The use of a homogeneous solution formed by dissolving in water, or in a C 1 - C 4 alcohol or in a mixture of water and a C 1 - C 4 alcohol an aluminium chlorhydrate organic complex formed from an aluminium chlorhydrate and a polyol containing 2 to 6 carbon atoms and at least 2 hydroxy groups, optionally including an organic silicate containing at least one C 1 - C 6 alkoxy group as a precursor for drawing filaments.
Claim 11
Dependent Claim
37 words
A process as claimed in Claim 3 in which the additive is a magnesium chloride in a quantity to give the oxide stoichiometry of spinel Mg0 . Al 2 O 3 , no organic silicate being present.
Claim 12
Dependent Claim
31 words
The use of a homogeneous solution as claimed in Claim 8 and containing a chloride selected from the group comprising calcium, magnesium, chromium and zirconium as a precursor for drawing filaments.
Claim 13
Dependent Claim
23 words
The use of a homogeneous solution as claimed in Claim 8 and containing an alkoxide of boron as a precursor for drawing filaments.
References Cited (Backward Citations)
No citation records indexed.
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