US3868299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating glass unit containing absorbent mixture
Assignee: Bayer AG
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Filing: 1972-05-16
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Granted: 1975-02-25
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Expires: 1992-05-16
Abstract
Abstract An adsorbent intended in particular for use in multiplelayer insulating glass comprising by weight about 60 to 90 % of a narrow-pored zeolite having a pore width up to 5 Angstroms, about 10 to 30 % of a wide-pored adsorbent having a pore width in excess of 5 Angstroms and optionally up to about 20 of a binder.
Inventors
- 👤 Gunter Ulisch
- 👤 Gerhard Heinze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:24
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/183; E; E06; E06B; E06B3/00; E06B3/66; E06B3/677; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/259
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
121 words
IN AN INSULATING GLASS UNIT COMPRISING TWO LAYERS OF GLASS, MEANS SPACING SAID LAYERS FROM ONE ANOTHER AND FORMING AN ENCLOSED SPACE THEREBETWEEN, AND VAPOR-ADSORBING GRANULES DISPOSED IN AND FILLING ONLY A PORTION OF SAID SPACE, THE IMPROVEMENT WHICH COMPRISES EMPLOYING AS SAID GRANULES SO AS SIMULTANEOUSLY TO ADSORB VAPORS OF WATER AND SOLVENT HOMOGENEOUS GRANULES COMPRISING, BY WEIGHT, AT LEAST ABOUT 60% OF AT LEAST ONE NARROW-PORED ZEOLITE HAVING A PORE WIDTH OF UP TO 5 ANGSTROMS, AT LEAST ABOUT 10% BY WEIGHT OF AT LEAST ONE WIDE-PORED ADSORBENT HAVING A PORE WIDTH IN EXCESS OF 5 ANGSTROMS, AND ABOUT 15 TO 20% OF AT LEAST ONE BINDER SELECTED FROM THE GROUP CONSISTING OF KAOLIN, ATTAPULGITE, BENTONITE, WATERGLASS AND SILICA.
Claim 2
Dependent Claim
121 words
IN AN INSULATING GLASS UNIT COMPRISING TWO LAYERS OF GLASS, MEANS SPACING SAID LAYERS FROM ONE ANOTHER AND FORMING AN ENCLOSED SPACE THEREBETWEEN, AND VAPOR-ADSORBING GRANULES DISPOSED IN AND FILLING ONLY A PORTION OF SAID SPACE, THE IMPROVEMENT WHICH COMPRISES EMPLOYING AS SAID GRANULES SO AS SIMULTANEOUSLY TO ADSORB VAPORS OF WATER AND SOLVENT HOMOGENEOUS GRANULES COMPRISING, BY WEIGHT, AT LEAST ABOUT 60% OF AT LEAST ONE NARROW-PORED ZEOLITE HAVING A PORE WIDTH OF UP TO 5 ANGSTROMS, AT LEAST ABOUT 10% BY WEIGHT OF AT LEAST ONE WIDE-PORED ADSORBENT HAVING A PORE WIDTH IN EXCESS OF 5 ANGSTROMS, AND ABOUT 15 TO 20% OF AT LEAST ONE BINDER SELECTED FROM THE GROUP CONSISTING OF KAOLIN, ATTAPULGITE, BENTONITE, WATERGLASS AND SILICA.
Claim 3
Dependent Claim
15 words
An insulating glass according to claim 1, wherein the narrow-pored zeolite comprises sodium zeolite A.
Claim 4
Dependent Claim
31 words
An insulating glass according to claim 1, wherein the wide-pored zeolite comprises silica gel, a synthetic faujasite having a pore width of about 8 to 10 Angstroms, or a mixture thereof.
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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) | 1978-02-24 | 1978-08-26 | 1979-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-24 | 1982-08-26 | 1983-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-24 | 1986-08-26 | 1987-02-25 | $7700.00 | Window Closed / Lapsed |