US5090154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Growth-preventing web for ground covering
Assignee: Sotralentz SA
•
Filing: 1990-12-18
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Granted: 1992-02-25
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Expires: 2010-12-18
Abstract
Abstract A ground cover preventing vegetation growth has a polyethylene or polyurethane ground contacting foil and an asphalt/styrene-butadiene-styrene protective and adhesive layer on the foil. The adhesive layer contains 15 to 25% by weight of a meal-fine mineral filler and is applied to the foil in an amount of 1,750 to 2,250 g/m 2 . A stone granulate, e.g. of gravel, with a particle size of 2 to 5 millimeters is pressed into the asphalt/SBS layer in an amount of 3,500 to 5,000 g/m 2 .
Inventors
- 👤 Christian Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:58
CPC Classifications
E; E01; E01H; E01H11/00; E02; E02D; E02D17/00; E02D17/20; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/259; Y10T442/2926; Y10T442/2992
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
108 words
A vegetation-growth-preventing web, comprising: a synthetic-resin foil layer of polyethylene or polyurethane having a ground-engaging surface and an upper surface; a sun-screening protective layer of an asphalt/styrene-butadiene-styrene mixture cast onto said upper surface and containing a meal-fine mineral filler admixed into said mixture in an amount of 15 to 25% by weight thereof, said sun-screening protective layer being applied to said foil layer in an amount of 1,750 to 2,250 g/m 2 ; and a stone granulate consisting of stone granules of a particle size of 2 mm to 5 mm pressed into said protective layer in an amount of 3,500 to 5,000 g/m 2 of said web.
Claim 2
Dependent Claim
108 words
A vegetation-growth-preventing web, comprising: a synthetic-resin foil layer of polyethylene or polyurethane having a ground-engaging surface and an upper surface; a sun-screening protective layer of an asphalt/styrene-butadiene-styrene mixture cast onto said upper surface and containing a meal-fine mineral filler admixed into said mixture in an amount of 15 to 25% by weight thereof, said sun-screening protective layer being applied to said foil layer in an amount of 1,750 to 2,250 g/m 2 ; and a stone granulate consisting of stone granules of a particle size of 2 mm to 5 mm pressed into said protective layer in an amount of 3,500 to 5,000 g/m 2 of said web.
Claim 3
Dependent Claim
45 words
The vegetation-growth-preventing web defined in claim 1 wherein said sun-screening protective layer consists of a mixture of asphalt, styrene-butadiene-styrene block copolymer elastomer and said filler and said styrene-butadiene-styrene block copolymer elastomer is present in an amount of 5 to 10% by weight of the asphalt.
Claim 4
Dependent Claim
18 words
The vegetation-growth-preventing web defined in claim 1, further comprising a glass-fiber web embedded in said sun-screening protective layer.
Claim 5
Dependent Claim
20 words
The vegetation-growth-preventing web defined in claim 3 wherein said glass-fiber web has a weight of about 50 g/m 2 .
Claim 6
Dependent Claim
45 words
The vegetation-growth-preventing web defined in claim 4 wherein said sun-screening protective layer consists of a mixture of asphalt, styrene-butadiene-styrene block copolymer elastomer and said filler and said styrene-butadiene-styrene block copolymer elastomer is present in an amount of 5 to 10% by weight of the asphalt.
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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) | 1995-02-24 | 1995-08-26 | 1996-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-24 | 1999-08-26 | 2000-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-24 | 2003-08-26 | 2004-02-25 | $7700.00 | Window Closed / Lapsed |