US4112185A
Expired / Lapsed
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Modified mineral supports
Assignee: Rhone Poulenc Industries SA
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Filing: 1975-08-25
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Granted: 1978-09-05
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Expires: 1995-08-25
Abstract
Abstract Modified porous mineral carriers in which the surfaces are covered by a cross-linking polymer formed by reaction of at least one polyamine with at least one epoxide compound.
Inventors
- 👤 Francois Meiller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:18
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/103; B01J20/06; B01J20/22; B01J20/26; B01J20/262; B01J20/265; B01J20/267; B01J20/28; B01J20/28002; B01J20/28004; B01J20/28054; B01J20/28057; B01J20/28069; B01J20/28078; B01J20/30; B01J20/3078; B01J20/32; B01J20/3202; B01J20/3204; B01J20/3231; B01J20/3242; B01J20/3244; B01J20/3246; B01J20/3257; B01J20/3268; B01J20/3272; B01J20/328; B01J20/3282; B01J39/00; B01J39/08; B01J39/16; B01J39/17; B01J2220/00; B01J2220/50; B01J2220/58; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/256; Y10T428/257; Y10T428/259; Y10T428/26; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2998; Y10T428/31504; Y10T428/31511
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
91 words
Porous mineral support materials comprising modified mineral carriers having a grain size range of from 5 μ to 5 mm, a specific surface area of from 2 to 1000 sq.m/g, a pore diameter of from 50 to 10,000 A, and a pore volume of 0.5 to 1.3 ml/g said carrier being in the form of particles coated with a cross-linked polymer formed of the reaction of at least one polyamine on at least one epoxidic compound and present in an amount within the range of 1-60% by weight of the carrier.
Claim 2
Dependent Claim
91 words
Porous mineral support materials comprising modified mineral carriers having a grain size range of from 5 μ to 5 mm, a specific surface area of from 2 to 1000 sq.m/g, a pore diameter of from 50 to 10,000 A, and a pore volume of 0.5 to 1.3 ml/g said carrier being in the form of particles coated with a cross-linked polymer formed of the reaction of at least one polyamine on at least one epoxidic compound and present in an amount within the range of 1-60% by weight of the carrier.
Claim 3
Dependent Claim
23 words
Materials according to claim 1, in which the carrier is selected from the group consisting of brick, kieselguhr, mineral silicates, or metal oxides.
Claim 4
Dependent Claim
48 words
Materials according to claim 1, in which the epoxidic compounds are selected from the group consisting of epichlorohydrin and di-epoxidic compounds with a straight, branched or cyclic carbon chain, with or without one or more heteroatoms, oxygen, sulfur, or nitrogen, and halogen atoms, hydroxy, aryl or cyano groups.
Claim 5
Dependent Claim
46 words
Materials according to claim 1, in which a mono-epoxidic compound with a straight or branched chain, having no more than 10 carbon atoms or a cyclic chain, containing at least one nitrogen atom with or without an aryl group, can be associated with the epoxidic compound.
Claim 6
Dependent Claim
25 words
Materials according to claim 1, characterized in that a mono-epoxidic compound represents from 0 to 60% by weight of the total of the epoxidic compounds.
Claim 7
Dependent Claim
37 words
Materials according to claim 1, in which the polyamines are selected from the group consisting of primary and/or secondary, aliphatic, cyclanic or aromatic, with or without hydroxyl alkyl groups having 2 or 3 carbon atoms as substituents.
Claim 8
Dependent Claim
26 words
Materials according to claim 1, in which the amount of polyamine is between the stoichiometric amount and 250% by weight with respect to the epoxidic compound.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-09-04 | 1982-03-06 | 1982-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-04 | 1986-03-06 | 1986-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-04 | 1990-03-06 | 1990-09-05 | $7700.00 | Window Closed / Lapsed |