GB1574414A
Expired / Lapsed
GB
⏱️ 0.0 years remaining
Composite materials
Assignee: United Kingdom Atomic Energy Authority
•
Filing: 1975-12-15
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Granted: —
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Expires: 1995-12-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-11-04 12:17
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/281; B01J20/291; B01J20/28; B01J20/28014; B01J20/28016; B01J20/28047; B01J20/28054; B01J20/28095; B01J20/28097; B01J47/00; B01J47/018; B01J2220/00; B01J2220/50; B01J2220/54
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
35 words
A composite material comprising a plurality of discrete particles of a porous rigid support material having a deformable gel (as hereinbefore defined) retained within the pore structure of the particles of porous rigid support material.
Claim 2
Dependent Claim
35 words
A composite material comprising a plurality of discrete particles of a porous rigid support material having a deformable gel (as hereinbefore defined) retained within the pore structure of the particles of porous rigid support material.
Claim 3
Dependent Claim
33 words
A composite material as claimed in Claim 1, wherein the deformable gel is capable of sorbing chemical species from solution, or has ion exchange properties, or gel permeation properties or molecular sieve properties.
Claim 4
Dependent Claim
27 words
A composite material as claimed in Claim I or Claim 2, wherein the discrete porous particles are those prepared in accordance with our British Patent No. 1,421,531.
Claim 5
Dependent Claim
22 words
A composite material as claimed in any one of Claims 1 to 3, wherein the deformable gel is an organic polymeric material.
Claim 6
Dependent Claim
17 words
A composite material as claimed in Claim 4, wherein the organic polymeric material has ion exchange properties.
Claim 7
Dependent Claim
20 words
A composite material as claimed in Claim 4, wherein the organic polymeric material has gel filtration or molecular sieve properties.
Claim 8
Dependent Claim
21 words
A composite material as claimed in any one of Claims 4 to 6, wherein the organic polymeric material is a polysaccharide.
Claim 9
Dependent Claim
14 words
A composite material as claimed in Claim 7, wherein the polysaccharide is a cellulose.
Claim 10
Dependent Claim
34 words
A composite material as claimed in any one of Claims 1 to 8, in the form of discrete particles comprising discrete porous rigid particles of a natural diatomaceous earth having a polysaccharide retained therein.
Claim 11
Dependent Claim
24 words
A composite material as claimed in any one of Claims 1 to 9 wherein a biologically active substance is coupled to the deformable gel.
Claim 12
Dependent Claim
75 words
I 1. A method for preparing a composite material of a deformable gel (as hereinbefore defined) retained in the pore structure of a plurality of discrete particles of a porous rigid support material which comprises introducing a precursor for the gel into the pore structure of a plurality of discrete particles of a porous rigid support material and treating the precursor to form and retain the deformable gel in the pore structure of the particles.
Claim 13
Dependent Claim
75 words
I 1. A method for preparing a composite material of a deformable gel (as hereinbefore defined) retained in the pore structure of a plurality of discrete particles of a porous rigid support material which comprises introducing a precursor for the gel into the pore structure of a plurality of discrete particles of a porous rigid support material and treating the precursor to form and retain the deformable gel in the pore structure of the particles.
Claim 14
Dependent Claim
50 words
A method as claimed in Claim 11 wherein the precursor is introduced into the pore structure of the particles of porous rigid support material in solution and the solution in the support material is subsequently treated with a precipitating agent to cause precipitation of a gel from the precursor solution.
Claim 15
Dependent Claim
18 words
A method as claimed in Claim 11 or 12 wherein the deformable gel is an organic polymeric material.
Claim 16
Independent Claim
20 words
A method as claimed in any one of Claims 11 to 13 wherein the gel is interactive towards chemical species.
Claim 17
Independent Claim
29 words
A method as claimed in any one of claims 11 to 13 wherein the gel is treatedto make it chemically inter-active in situ in the porous rigid support material.
Claim 18
Dependent Claim
49 words
A method as claimed in Claim 12 wherein an aqueous solution of a cuprammonium complex of cellulose is introduced into the pore structure of the particles and subsequently the solution retained in the pore structure is treated with dilute mineral acid to precipitate rayon gel in the pore structure.
Claim 19
Dependent Claim
40 words
A method as claimed in Claim 12 wherein a cellulose or a cellulosic ion exchanger is precipitated in the pore structure of the particles by regeneration of the cellulose or cellulosic ion exchanger from a solution of the corresponding xanthate.
Claim 20
Dependent Claim
28 words
A method as claimed in Claim 12 wherein a silicic acid gel is precipitated in the pore structure by of the particles decomposing a silicate by mineral acid.
Claim 21
Dependent Claim
41 words
A method as claimed in Claim 11 wherein the precursor is introduced into the pore structure of the particles of the porous rigid support material and is subsequently polymerised to form a polymer gel in the pore structure of the particles.
Claim 22
Dependent Claim
28 words
A method as claimed in Claim 11 wherein the precursor is introduced into the pore structure of the porous rigid support and is cross-linked to form a gel.
Claim 23
Dependent Claim
22 words
A method as claimed in Claim 20 wherein the precursor is temporarily retained in the pore structure by precipitation prior to cross-linking.
Claim 24
Dependent Claim
63 words
A method as claimed in Claim 20 wherein the precursor is introduced into the pore structure of the particles of the porous rigid support material in aqueous olution and the aqueous solution in the pore structure is contacted with a water miscible organic solvent capable of removing water from the aqueous solution thereby to precipitate precursor in the pore structure of the particles.
Claim 25
Dependent Claim
22 words
A method as claimed in Claim 11 wherein the precursor is dextran, DEAEdextran, dextran sulphate, CMC%cellulose, acrylamide, agarose or poly vinyl alcohol.
Claim 26
Dependent Claim
18 words
A composite material whenever prepared by a method as claimed in any one of claims 14 to 23.
Claim 27
Dependent Claim
19 words
A composite material substantially as hereinbefore described with reference to any one of Examples 1 to 17 and 30.
Claim 28
Dependent Claim
19 words
A composite material substantially as hereinbefore described with reference to any one of Examples 1 to 17 and 30.
Claim 29
Independent Claim
21 words
A method for preparing a composite material substantially as hereinbefore described with reference to any one of Examples 1 to 16.
Claim 30
Independent Claim
21 words
A method for preparing a composite material substantially as hereinbefore described with reference to any one of Examples 1 to 16.
References Cited (Backward Citations)
No citation records indexed.
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