US4748082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zeolite castings
Assignee: Evonik Operations GmbH
•
Filing: 1987-01-06
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Granted: 1988-05-31
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Expires: 2007-01-06
Abstract
Abstract There are prepared zeolite molded articles which also contain alkali silicate and/or alkaline earth silicate and mineral fibers and/or carbon fibers in addition to the zeolite.
Inventors
- 👤 Jurgen Dorr
- 👤 Peter Kleinschmit
- 👤 Reinhard Klingel
- 👤 Reinhard Manner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:33
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/183; B01D; B01D53/00; B01D53/26; B01D53/28; Y; Y10; Y10S; Y10S165/00; Y10S165/905; Y10S423/00; Y10S423/21; Y10S423/24
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
62 words
A zeolite molded article comprising (1) per 100 parts by weight of zeolite, (2) 7-29.5 parts by weight of at least one silicate selected from the group consisting of sodium silicate, potassium silicate, calcium silicate and magnesium silicate and (3) 0.2 to 28 parts by weight of at least one fibrous filler of the group consisting of mineral fibers and carbon fibers.
Claim 2
Dependent Claim
62 words
A zeolite molded article comprising (1) per 100 parts by weight of zeolite, (2) 7-29.5 parts by weight of at least one silicate selected from the group consisting of sodium silicate, potassium silicate, calcium silicate and magnesium silicate and (3) 0.2 to 28 parts by weight of at least one fibrous filler of the group consisting of mineral fibers and carbon fibers.
Claim 3
Dependent Claim
32 words
A zeolite molded article according to claim 1 made from a mixture containing (1) zeolite (2) silicate, (3) fibrous filler an (4) water containing 0.1 to 15% by weight of fibrous filler.
Claim 4
Dependent Claim
26 words
A zeolite molded article according to claim 2 containing the silicate (2) in an amount sufficient to bind the zeolite (1) and the fibrous filler (3).
Claim 5
Dependent Claim
26 words
A zeolite molded article according to claim 1 containing 18-29 parts by weight (2) silicate and 0.2 to 9.5 parts by weight of (3) fibrous filler.
Claim 6
Dependent Claim
15 words
A zeolite molded article according to claim 1 wherein the silicate (2) is sodium silicate.
Claim 7
Dependent Claim
15 words
A zeolite molded article according to claim 1 wherein the silicate (2) is sodium silicate.
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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) | 1991-05-31 | 1991-11-30 | 1992-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-31 | 1995-11-30 | 1996-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-31 | 1999-11-30 | 2000-05-31 | $7700.00 | Window Closed / Lapsed |