Patent US4744374A successfully refreshed from Google Patents.
US4744374A
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Hydrophobic, crystalline, microporous silaceous materials of regular geometry
Assignee: Scopas Technology Corp
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Filing: 1987-05-12
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Granted: 1988-05-17
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Expires: 2007-05-12
Abstract
Abstract The present invention discloses a new family of crystalline, microporous silaceous materials of regular geometry which are substantially hydrophobic, and methods for their preparation. These compounds may be prepared from natural or synthetic hydrated aluminous tectosilicates.
Inventors
- 👤 Kenneth S. Deffeves
- 👤 Aaron A. Rosenblatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:10
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/186; A; A01; A01K; A01K1/00; A01K1/015; A01K1/0152; A01K1/0154; A24; A24D; A24D3/00; A24D3/06; A24D3/16; A24D3/166; A61; A61L; A61L15/00; A61L15/16; A61L15/18
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
58 words
A diaper comprising an absorbent inner core having an effective amount of hydrophobic microporous crystalline tectosilicate of regular geometry having aluminum-free sites in a silaceous lattice that are characterized by the presence of about 1-4 associated moieties in said sites of the formula .tbd.SiOR, wherein R is a substituent that is a weaker point electric source than aluminum.
Claim 2
Dependent Claim
58 words
A diaper comprising an absorbent inner core having an effective amount of hydrophobic microporous crystalline tectosilicate of regular geometry having aluminum-free sites in a silaceous lattice that are characterized by the presence of about 1-4 associated moieties in said sites of the formula .tbd.SiOR, wherein R is a substituent that is a weaker point electric source than aluminum.
Claim 3
Dependent Claim
58 words
A bedpad comprising an absorbent inner core having an effective amount of hydrophobic microporous crystalline tectosilicate of regular geometry having aluminum-free sites in a silaceous lattice that are characterized by the presence of about 1-4 associated moieties in said sites of the formula .tbd.SiOR, wherein R is a substituent that is a weaker point electric source than aluminum.
Claim 4
Dependent Claim
58 words
A bedpad comprising an absorbent inner core having an effective amount of hydrophobic microporous crystalline tectosilicate of regular geometry having aluminum-free sites in a silaceous lattice that are characterized by the presence of about 1-4 associated moieties in said sites of the formula .tbd.SiOR, wherein R is a substituent that is a weaker point electric source than aluminum.
Claim 5
Dependent Claim
53 words
Animal litter comprising an effective amount of hydrophobic microporous crystalline tectosilicate of regular geometry having aluminum-free sites in a silaceous lattice that are characterized by the presence of about 1-4 associated moieties in said sites of the formula .tbd.SiOR, wherein R is a substituent that is a weaker point electric source than aluminum.
Claim 6
Dependent Claim
53 words
Animal litter comprising an effective amount of hydrophobic microporous crystalline tectosilicate of regular geometry having aluminum-free sites in a silaceous lattice that are characterized by the presence of about 1-4 associated moieties in said sites of the formula .tbd.SiOR, wherein R is a substituent that is a weaker point electric source than aluminum.
Claim 7
Dependent Claim
56 words
A cigarette or pipe filter comprising an effective amount of hydrophobic microporous crystalline tectosilicate of regular geometry having aluminum-free sites in a silaceous lattice that are characterized by the presence of about 1-4 associated moieties in said sites of the formula .tbd.SiOR, wherein R is a substituent that is a weaker point electric source than aluminum.
Claim 8
Dependent Claim
56 words
A cigarette or pipe filter comprising an effective amount of hydrophobic microporous crystalline tectosilicate of regular geometry having aluminum-free sites in a silaceous lattice that are characterized by the presence of about 1-4 associated moieties in said sites of the formula .tbd.SiOR, wherein R is a substituent that is a weaker point electric source than aluminum.
Claim 9
Dependent Claim
15 words
The filter of claim 5 comprising about 40-50 mg of the hydrophobic microporous crystalline tectosilicate.
Claim 10
Dependent Claim
56 words
A cigarette or cigar wrapping comprising an effective amount of hydrophobic microporous crystalline tectosilicate of regular geometry having aluminum-free sites in a silaceous lattice that are characterized by the presence of about 1-4 associated moieties in said sites of the formula .tbd.SiOR, wherein R is a substituent that is a weaker point electric source than aluminum.
Claim 11
Dependent Claim
56 words
A cigarette or cigar wrapping comprising an effective amount of hydrophobic microporous crystalline tectosilicate of regular geometry having aluminum-free sites in a silaceous lattice that are characterized by the presence of about 1-4 associated moieties in said sites of the formula .tbd.SiOR, wherein R is a substituent that is a weaker point electric source than aluminum.
References Cited (Backward Citations)
US4622263A
Cited
US4652484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-05-17 | 1991-11-16 | 1992-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-17 | 1995-11-16 | 1996-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-17 | 1999-11-16 | 2000-05-17 | $7700.00 | Window Closed / Lapsed |